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Hu S, Jiang L, Jiang L, Tang L, Wickrama Arachchige AUK, Yu H, Deng Z, Li L, Wang C, Zhang D, Chen C, Lin S, Chen X, Zhang C. Spatial distribution characteristics of carbazole and polyhalogenated carbazoles in water column and sediments in the open Western Pacific Ocean. J Hazard Mater 2024; 469:133956. [PMID: 38460258 DOI: 10.1016/j.jhazmat.2024.133956] [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: 11/29/2023] [Revised: 02/20/2024] [Accepted: 03/03/2024] [Indexed: 03/11/2024]
Abstract
Polyhalogenated carbazoles (PHCZs), an emerging persistent halogenated organic pollutant, have been detected in the environment. However, our understanding of PHCZs in the ocean remains limited. In this study, 47 seawater samples (covering 50 - 4000 m) and sediment samples (49 surface and 3 cores) were collected to investigate the occurrence and spatial distribution patterns of carbazole and its halogenated derivants (CZDs) in the Western Pacific Ocean. In seawater, the detection frequencies of CZ (97.87%) and 3-CCZ (57.45%) were relatively high. In addition, the average concentration of ΣPHCZs in the upper water (< 150 m, 0.23 ± 0.21 ng/L) was significantly lower than that in the deep ocean (1000 - 4000 m, 0.65 ± 0.56 ng/L, P < 0.05), which may indicate the vertical transport of PHCZs in the marine environment. The concentration of ΣCZDs in surface sediment ranges from 0.46 to 6.48 ng/g (mean 1.54 ng/g), among which CZ and 36-CCZ were the predominant components. Results from sediment cores demonstrate a noteworthy negative correlation between the concentration of CZDs and depth, indicating the ongoing natural degradation process occurring in sediment cores over a long period. This study offers distinctive insights into the occurrence, composition, and vertical features of CZDs in oceanic environments.
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Affiliation(s)
- Songtao Hu
- Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, Zhoushan 316021, Zhejiang, China
| | - Lijia Jiang
- Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, Zhoushan 316021, Zhejiang, China
| | - Lingbo Jiang
- Zhoushan Institute for Food and Drug Control, Zhoushan 316021, Zhejiang, China
| | - Leiming Tang
- Zhoushan Institute for Food and Drug Control, Zhoushan 316021, Zhejiang, China
| | | | - Hao Yu
- Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, Zhoushan 316021, Zhejiang, China
| | - Zhaochao Deng
- Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, Zhoushan 316021, Zhejiang, China; Ocean Research Center of Zhoushan, Zhejiang University, Zhoushan 316021, Zhejiang, China
| | - Longyu Li
- Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, Zhoushan 316021, Zhejiang, China
| | - Chunsheng Wang
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519082, China
| | - Dongsheng Zhang
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519082, China
| | - Chunlei Chen
- Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, Zhoushan 316021, Zhejiang, China
| | - Shiquan Lin
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519082, China
| | - Xiang Chen
- Zhoushan Institute for Food and Drug Control, Zhoushan 316021, Zhejiang, China
| | - Chunfang Zhang
- Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, Zhoushan 316021, Zhejiang, China.
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Yang S, Zhang D, Sun Q, Nie H, Zhang Y, Wang X, Huang Y, Sun Y. Single-Cell and Spatial Transcriptome Profiling Identifies the Transcription Factor BHLHE40 as a Driver of EMT in Metastatic Colorectal Cancer. Cancer Res 2024:743241. [PMID: 38657117 DOI: 10.1158/0008-5472.can-23-3264] [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] [Received: 10/19/2023] [Revised: 02/14/2024] [Accepted: 04/18/2024] [Indexed: 04/26/2024]
Abstract
Colorectal cancer (CRC) is one of the most common malignant tumors in humans, with liver metastasis being the primary cause of mortality. The epithelial-mesenchymal transition (EMT) process endows cancer cells with enhanced metastatic potential. To elucidate the cellular mechanisms driving EMT in CRC, we analyzed single-cell RNA-sequencing (scRNA-seq) data from 11 non-metastatic primary tumors (TnM) and 11 metastatic primary tumors (TM) from CRC patients. Compared to TnM group, the TM samples showed elevated numbers of malignant epithelial cell and cancer-associated fibroblast (CAF) subsets that displayed enrichments of EMT, angiogenesis, and TGF-β signaling pathways. One specific TM-enriched subgroup of malignant epithelial cells underwent EMT to trans-differentiate into CXCL1+ CAFs that subsequently differentiated into SFRP2+ CAFs, which was validated by spatial transcriptomic and pseudotime trajectory analyses. Furthermore, cell-cell communication analysis identified BHLHE40 as a probable key transcription factor driving EMT that was associated with poor prognosis. Finally, in vitro and in vivo experiments functionally substantiated that BHLHE40 promoted the proliferation, invasion, migration, EMT, and liver metastasis of CRC cells. In summary, this study identified BHLHE40 as a key transcription factor regulating EMT that promotes liver metastasis in CRC.
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Affiliation(s)
- Sheng Yang
- The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | | | | | - Hongxu Nie
- Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yue Zhang
- The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xiaowei Wang
- Nanjing Medical University, Nanjing, Jiangsu, China
| | | | - Yueming Sun
- The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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Xiao X, Sun J, Zhang D, Li L, Zhou H, Li Y, Li Q, He Z, Fu Y, Duan Q, Zheng G, Tang Z, Chu Q, Chen Y. Patient-Controlled Subcutaneous Analgesia with Hydromorphone versus Oral Oxycontin for Opioid Titration of Cancer Pain: A Prospective Multicenter Randomized Trial. J Pain Res 2024; 17:1441-1451. [PMID: 38628430 PMCID: PMC11020333 DOI: 10.2147/jpr.s451698] [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: 12/11/2023] [Accepted: 04/04/2024] [Indexed: 04/19/2024] Open
Abstract
Background Studies have shown that oral oxycontin tablets can be used for opioid titration. The European Society for Medical Oncology (ESMO) guidelines for adult cancer pain recommend opioid titration through the parenteral route, usually the intravenous or subcutaneous route. Patient-controlled subcutaneous analgesia (PCSA) with hydromorphone needs further evaluation for opioid titration. This prospective multicenter study was designed to compare the efficacy and safety of hydromorphone PCSA with oral oxycontin tablets for opioid titration of cancer pain. Patients and Methods Eligible patients with cancer pain were randomly assigned in a 1:1 ratio to the PCSA group or the oxycontin group for dose titration. Different titration methods were given in both groups depending on whether the patient had an opioid tolerance. The primary endpoint of this study was time to successful titration (TST). Results A total of 256 patients completed this study. The PCSA group had a significantly lower TST compared with the oxycontin group (median [95% confidence interval (CI)], 5.5[95% CI:2.5-11.5] hours vs.16.0 [95% CI:11.5-22.5] hours; p<0.001). The frequency (median; interquartile) of breakthrough pain (Btp) over 24 hours was significantly lower in the PCSA group (2.5;2.0-3.5) than in the oxycontin group.(3.0; 2.5-4.5) (p=0.04). The pain was evaluated by numeric rating scale (NRS) score at 12 hours after the start of titration. The pain score (median; interquartile) was significantly lower in the PCSA versus the oxycontin group (2.5;1.5-3.0) vs 4.5;3.0-6.0) (p=0.02). The equivalent dose of oral morphine (EDOM) for a successful titration was similar in both groups (p=0.29), but there was a significant improvement in quality of life (QoL) in both groups (p=0.03). No between-group difference in the incidence of opioid-related adverse effects was observed (p=0.32). Conclusion Compared with oral oxycontin tablet, the use of PCSA with hydromorphone achieved a shorter titration duration for patients with cancer pain (p<0.001), without significantly increasing adverse events (p=0.32).
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Affiliation(s)
- Xiaoguang Xiao
- Department of Oncology, Tongji Hospital of Tongji Medical College of Huazhong University of Science and Technology, Wuhan, Hubei, People’s Republic of China
| | - Jianhai Sun
- Department of Oncology, Hubei Zhongshan Hospital, Wuhan, Hubei, People’s Republic of China
| | - Dongsheng Zhang
- Department of Oncology, Suizhou Hospital, Hubei University of Medicine, Suizhou, Hubei, People’s Republic of China
| | - Linjun Li
- Department of Oncology, Hubei Provincial Hospital of Integrated Chinese and Western Medicine, Wuhan, Hubei, People’s Republic of China
| | - Haibo Zhou
- Department of Oncology, Yichang Central People’s Hospital, Yichang, Hubei, People’s Republic of China
| | - Yongjun Li
- Department of Oncology, Yichang Second People’s Hospital, Yichang, Hubei, People’s Republic of China
| | - Quan Li
- Department of Oncology, Xiangyang Central Hospital, Xiangyang, Hubei, People’s Republic of China
| | - Zhongshi He
- Department of Oncology, Xiangyang No 1 People’s Hospital Affiliated to Hubei University of Medicine, Xiangyang, Hubei, People’s Republic of China
| | - Yang Fu
- Department of Oncology, Xiangyang Hospital of Traditional Chinese Medicine, Xiangyang, Hubei, People’s Republic of China
| | - Qiwen Duan
- Department of Oncology, Taihe Hospital, Shiyan, Hubei, People’s Republic of China
| | - Guping Zheng
- Department of Oncology, Xiaogan Central Hospital, Xiaogan, Hubei, People’s Republic of China
| | - Ze Tang
- Department of Oncology, Huangshi Central Hospital, Huangshi, Hubei, People’s Republic of China
| | - Qian Chu
- Department of Oncology, Tongji Hospital of Tongji Medical College of Huazhong University of Science and Technology, Wuhan, Hubei, People’s Republic of China
| | - Yuan Chen
- Department of Oncology, Tongji Hospital of Tongji Medical College of Huazhong University of Science and Technology, Wuhan, Hubei, People’s Republic of China
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Pan L, Meng H, Li J, Liu Z, Zhang D, Liu Z, Zhao Q, Xu F. Enhancement of Astaxanthin Bioaccessibility by Encapsulation in Liposomes: An In Vitro Study. Molecules 2024; 29:1687. [PMID: 38675507 PMCID: PMC11051820 DOI: 10.3390/molecules29081687] [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: 02/26/2024] [Revised: 04/05/2024] [Accepted: 04/07/2024] [Indexed: 04/28/2024] Open
Abstract
Astaxanthin was encapsulated in liposomes by a thin layer dispersion and ultrasound method using soybean phospholipid. The digestion properties of liposomes for encapsulating astaxanthin were investigated in light of particle size, size distribution, zeta potential, and microstructure during in vitro digestion as a function of time. These results exhibited that the average particle size increased gradually with liposomal vesicles retained round shapes and a fairly uniform distribution after passage through the simulated gastric fluid digestion. The result revealed that astaxanthin-loaded liposomes were stable in low pH conditions. It was also found that the mixed micelles formed in a simulated intestinal fluid. The zeta potential of astaxanthin-loaded liposomes had a decrease in negativity after digestion. In comparison with free astaxanthin, there was an appreciable increase in the bioaccessibility of astaxanthin after encapsulation in liposomes. This enhancement can be attributed to more soluble astaxanthin in the mixed micelles for astaxanthin-loaded liposomes. It indicated that the barrier of the liposomal bilayer could inhibit astaxanthin fading and leaking after encapsulation in liposomes. These results provide useful information for designing more stable delivery systems in the gastrointestinal tract and improving the bioaccessibility of lipophilic nutraceuticals.
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Affiliation(s)
| | | | | | | | | | | | - Qian Zhao
- Oil and Food Engineering Technology Research Center of the State Grain and Reserves Administration/Key Laboratory of Henan Province, Henan University of Technology, Zhengzhou 450001, China; (L.P.); (H.M.); (J.L.); (Z.L.); (D.Z.); (Z.L.); (Q.Z.)
| | - Fei Xu
- Oil and Food Engineering Technology Research Center of the State Grain and Reserves Administration/Key Laboratory of Henan Province, Henan University of Technology, Zhengzhou 450001, China; (L.P.); (H.M.); (J.L.); (Z.L.); (D.Z.); (Z.L.); (Q.Z.)
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Feng Y, Jin C, Wang T, Chen Z, Ji D, Zhang Y, Zhang C, Zhang D, Peng W, Sun Y. The Uridylyl Transferase TUT7-Mediated Accumulation of Exosomal miR-1246 Reprograms TAMs to Support CRC Progression. Adv Sci (Weinh) 2024; 11:e2304222. [PMID: 38342611 PMCID: PMC11022710 DOI: 10.1002/advs.202304222] [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: 06/25/2023] [Revised: 12/06/2023] [Indexed: 02/13/2024]
Abstract
Tumor-associated macrophages (TAMs) play a crucial role in promoting tumor growth and dissemination, motivating a search for key targets to interfere with the activation of TAMs or reprogram TAMs into the tumor-suppressive type. To gain insight into the mechanisms of macrophage polarization, a designed co-culture system is established, allowing for the education of macrophages in a manner that closely mimics the intricacies of TAMs in the tumor immune microenvironment (TIME). Through database mining, exosomal miR-1246 is identified and is then validated. Exosomal miR-1246-driven polarization of TAMs disrupts the infiltration and function of CD8+ T cells. Mechanically, the amassment of exosomal miR-1246 stems from TUT7-mediated degradation of small noncoding RNA, a process stabilized by SNRPB, but not the precursor of miR-1246. Moreover, an Exo-motif is present in the exosomal miR-1246 sequence, enabling it to bind with the exosomal sorting protein hnRNPA2B1. RNA-seq analysis reveals that exogenous miR-1246 modulates the polarization of TAMs at a post-transcriptional level, emphasizing the pivotal role of the NLRP3 in macrophage polarization. In conclusion, the findings underscore the importance of exosomal miR-1246 as a trigger of macrophage reprogramming and uncover a novel mechanism for its enhanced presence in the TIME.
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Affiliation(s)
- Yifei Feng
- Department of General SurgeryThe First Affiliated Hospital with Nanjing Medical UniversityNanjingJiangsu210029P. R. China
- The First School of Clinical MedicineNanjing Medical UniversityNanjing210029China
| | - Chi Jin
- Department of General SurgeryThe First Affiliated Hospital with Nanjing Medical UniversityNanjingJiangsu210029P. R. China
- The First School of Clinical MedicineNanjing Medical UniversityNanjing210029China
| | - Tuo Wang
- Department of General SurgeryThe First Affiliated Hospital with Nanjing Medical UniversityNanjingJiangsu210029P. R. China
- The First School of Clinical MedicineNanjing Medical UniversityNanjing210029China
| | - Zhihao Chen
- Department of General SurgeryThe First Affiliated Hospital with Nanjing Medical UniversityNanjingJiangsu210029P. R. China
- The First School of Clinical MedicineNanjing Medical UniversityNanjing210029China
| | - Dongjian Ji
- Department of General SurgeryThe First Affiliated Hospital with Nanjing Medical UniversityNanjingJiangsu210029P. R. China
- The First School of Clinical MedicineNanjing Medical UniversityNanjing210029China
| | - Yue Zhang
- Department of General SurgeryThe First Affiliated Hospital with Nanjing Medical UniversityNanjingJiangsu210029P. R. China
- The First School of Clinical MedicineNanjing Medical UniversityNanjing210029China
| | - Chuan Zhang
- Department of General SurgeryThe First Affiliated Hospital with Nanjing Medical UniversityNanjingJiangsu210029P. R. China
- The First School of Clinical MedicineNanjing Medical UniversityNanjing210029China
| | - Dongsheng Zhang
- Department of General SurgeryThe First Affiliated Hospital with Nanjing Medical UniversityNanjingJiangsu210029P. R. China
- The First School of Clinical MedicineNanjing Medical UniversityNanjing210029China
| | - Wen Peng
- Department of General SurgeryThe First Affiliated Hospital with Nanjing Medical UniversityNanjingJiangsu210029P. R. China
- The First School of Clinical MedicineNanjing Medical UniversityNanjing210029China
| | - Yueming Sun
- Department of General SurgeryThe First Affiliated Hospital with Nanjing Medical UniversityNanjingJiangsu210029P. R. China
- The First School of Clinical MedicineNanjing Medical UniversityNanjing210029China
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Li Y, Yang E, Geng Y, Li M, Wang X, Zhang D. TFEB regulates the odontoblastic differentiation of dental pulp stem cells by promoting a positive feedback loop between mitophagy and glycolysis. Arch Oral Biol 2024; 160:105909. [PMID: 38309196 DOI: 10.1016/j.archoralbio.2024.105909] [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: 08/31/2023] [Revised: 01/21/2024] [Accepted: 01/28/2024] [Indexed: 02/05/2024]
Abstract
OBJECTIVE To evaluate the regulatory effect of transcription factor EB (TFEB) on the odontoblastic differentiation of dental pulp stem cells(DPSCs) in vivo and in vitro. DESIGNS RNA-seq was used to detect differentially expressed genes in differentiated DPSCs. Lysosomes and the expression of the related gene TFEB were examined in DPSCs. DPSCs were then transfected with lentivirus for TFEB-overexpression. Cell proliferation was detected using CCK-8 and EdU assays, while cell differentiation was detected using ALP and ARS detection kits. Subsequently, mitophagy and cell metabolism were examined using TEM and Seahorse. An odontoblastic differentiation model was constructed subcutaneously in nude mice. Finally, the effects of glycolysis and mitophagy inhibitors were evaluated on odontoblastic differentiation and the associated mechanisms were explored. RESULTS TFEB overexpression promoted a significant increase in ALP activity and the expression of differentiation-related genes in DPSCs, while it inhibited cell proliferation. In vivo, TFEB overexpression caused higher bone volume/trabecular volume(BV/TV), and an increase in collagen formation and heightened DMP-1 expression. Furthermore, Seahorse flux analysis demonstrated that TFEB promoted metabolic reprogramming. Transmission electron microscope(TEM) results indicated an increase in mitochondrial autophagosomes after TFEB overexpression, and the expression of mitophagy-related genes was also elevated. The odontoblastic differentiation of DPSCs promoted by TFEB overexpression was suppressed after the addition of 2-DG and Midiv-1. Addition of Midiv-1 reduced the glycolytic rate of DPSCs, while addition of 2-DG also decreased the mitophagy level of the cells. CONCLUSIONS Our results showed that TFEB promoted the odontoblastic differentiation of DPSCs and identified mitophagy and metabolic reprogramming as a positive feedback loop.
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Affiliation(s)
- Yiming Li
- School and hospital of Stomatology, Cheeloo College of Medicine, Shandong University, China; Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Enli Yang
- School and hospital of Stomatology, Cheeloo College of Medicine, Shandong University, China; Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Yiming Geng
- School and hospital of Stomatology, Cheeloo College of Medicine, Shandong University, China; Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Mingyang Li
- School and hospital of Stomatology, Cheeloo College of Medicine, Shandong University, China; Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Xuan Wang
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.
| | - Dongsheng Zhang
- School and hospital of Stomatology, Cheeloo College of Medicine, Shandong University, China; Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.
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Teng KX, Zhang D, Liu BK, Liu ZF, Niu LY, Yang QZ. Photo-Induced Disproportionation-Mediated Photodynamic Therapy: Simultaneous Oxidation of Tetrahydrobiopterin and Generation of Superoxide Radicals. Angew Chem Int Ed Engl 2024; 63:e202318783. [PMID: 38258371 DOI: 10.1002/anie.202318783] [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: 12/06/2023] [Revised: 01/19/2024] [Accepted: 01/22/2024] [Indexed: 01/24/2024]
Abstract
We herein present an approach of photo-induced disproportionation for preparation of Type-I photodynamic agents. As a proof of concept, BODIPY-based photosensitizers were rationally designed and prepared. The photo-induced intermolecular electron transfer between homotypic chromophores leads to the disproportionation reaction, resulting in the formation of charged intermediates, cationic and anionic radicals. The cationic radicals efficiently oxidize the cellularimportant coenzyme, tetrahydrobiopterin (BH4 ), and the anionic radicals transfer electrons to oxygen to produce superoxide radicals (O2 - ⋅). One of our Type-I photodynamic agents not only self-assembles in water but also effectively targets the endoplasmic reticulum. It displayed excellent photocytotoxicity even in highly hypoxic environments (2 % O2 ), with a half-maximal inhibitory concentration (IC50 ) of 0.96 μM, and demonstrated outstanding antitumor efficacy in murine models bearing HeLa tumors.
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Affiliation(s)
- Kun-Xu Teng
- Institution Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
| | - Dongsheng Zhang
- Institution Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Bin-Kai Liu
- Institution Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
| | - Zheng-Fei Liu
- Institution Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
| | - Li-Ya Niu
- Institution Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
| | - Qing-Zheng Yang
- Institution Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
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Wang H, Sun R, Huang S, Wu H, Zhang D. Fabrication and properties of hydroxyapatite/chitosan composite scaffolds loaded with periostin for bone regeneration. Heliyon 2024; 10:e25832. [PMID: 38463831 PMCID: PMC10920147 DOI: 10.1016/j.heliyon.2024.e25832] [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: 11/20/2023] [Revised: 01/30/2024] [Accepted: 02/02/2024] [Indexed: 03/12/2024] Open
Abstract
This paper reports a facile fabrication method of hydroxyapatite/chitosan (HAp/CS) composite scaffold with 3D porous structure without using any chemical cross-linkers. The HAp particles had an urchin-like hollow microstructure and high surface area, which was uniformly dispersed into the pore walls of the HAp/CS scaffold. The addition of HAp can efficiently enhance the mechanical properties and bioactivity of the HAp/CS scaffold. Moreover, periostin was successfully loaded onto the HAp/CS scaffold. When applied to the repair of bone defect in a rat mandibular model, the HAp/CS scaffold loaded with periostin can enhance osteointegration and accelerate bone regeneration. Our research combines periostin with the HAp/CS composite material, which provides a novel strategy to improve bone regeneration and has great application prospect in bone repair fields.
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Affiliation(s)
- Huachun Wang
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, 250012, China
- Department of Oral and Maxillofacial Surgery, Qilu Hospital of Shandong University, Qingdao, 266035, China
| | - Ruixue Sun
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Shengyun Huang
- Department of Stomatology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, China
| | - Haiwei Wu
- Department of Stomatology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, China
| | - Dongsheng Zhang
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, 250012, China
- Department of Stomatology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, China
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Han F, Wang Y, Dong X, Lin Q, Wang Y, Gao W, Yun M, Li Y, Gao S, Huang H, Li N, Luo T, Luo X, Qiu M, Zhang D, Yan K, Li A, Liu Z. Clinical sonochemotherapy of inoperable pancreatic cancer using diagnostic ultrasound and microbubbles: a multicentre, open-label, randomised, controlled trial. Eur Radiol 2024; 34:1481-1492. [PMID: 37796294 DOI: 10.1007/s00330-023-10210-4] [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: 02/24/2023] [Revised: 07/02/2023] [Accepted: 07/04/2023] [Indexed: 10/06/2023]
Abstract
OBJECTIVES Sonochemotherapy, which uses microbubble (MB)-assisted ultrasound (US) to deliver chemotherapeutic agents, has the potential to enhance tumour chemotherapy. The combination of US and MB has been demonstrated to prolong the survival of patients with pancreatic cancer. This phase 2 clinical trial aimed to determine the clinical efficacy and safety of sonochemotherapy for inoperable pancreatic ductal adenocarcinoma by using US and MB. METHODS Eighty-two patients with stage III or IV pancreatic cancer were recruited from July 2018 to March 2021 and followed up until September 2022. US treatment was performed with a modified diagnostic US scanner for 30 min after chemotherapeutic infusion. The primary endpoint was overall survival (OS), and the secondary endpoints were Eastern Cooperative Oncology Group (ECOG) status < 2, progression-free survival (PFS), disease control rate (DCR), and adverse events. RESULTS Seventy-eight patients were randomly allocated (40 to chemotherapy and 38 to sonochemotherapy). The median OS was longer with sonochemotherapy than with chemotherapy (9.10 vs. 6.10 months; p = 0.037). The median PFS with sonochemotherapy was 5.50 months, compared with 3.50 months (p = 0.080) for chemotherapy. The time of ECOG status < 2 was longer with sonochemotherapy (7.20 months) than with chemotherapy (5.00 months; p = 0.029). The DCR was 73.68% for sonochemotherapy compared with 42.50% for the control (p = 0.005). The incidence of overall adverse events was balanced between the two groups. CONCLUSIONS The use of sonochemotherapy can extend the survival and well-being time of stage III or IV pancreatic cancer patients without any increase in serious adverse events. TRIAL REGISTRATION ChineseClinicalTrials.gov ChiCTR2100044721 CLINICAL RELEVANCE STATEMENT: This multicentre, randomised, controlled trial has proven that sonochemotherapy, namely, the combination of diagnostic ultrasound, microbubbles, and chemotherapy, could extend the overall survival of patients with end-stage pancreatic ductal adenocarcinoma from 6.10 to 9.10 months without increasing any serious adverse events. KEY POINTS • This is the first multicentre, randomised, controlled trial of sonochemotherapy for clinical pancreatic cancer treatment using ultrasound and a commercial ultrasound contrast agent. • Sonochemotherapy extended the median overall survival from 6.10 (chemotherapy alone) to 9.10 months. • The disease control rate increased from 42.50% with chemotherapy to 73.68% with sonochemotherapy.
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Affiliation(s)
- Feng Han
- Department of Ultrasound, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University, 651 Dongfengdong Road, Guangzhou, 510060, China
| | - Yanjie Wang
- Department of Ultrasound, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital & Institute, No. 52 of Fucheng Road, Haidian District, Beijing, 100142, China
| | - Xiaoxiao Dong
- Department of Ultrasound, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Qingguang Lin
- Department of Ultrasound, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University, 651 Dongfengdong Road, Guangzhou, 510060, China
| | - Yixi Wang
- Department of Ultrasound, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital & Institute, No. 52 of Fucheng Road, Haidian District, Beijing, 100142, China
| | - Wenhong Gao
- Department of Ultrasound, General Hospital of Central Theater, Wuhan, China
| | - Miao Yun
- Department of Ultrasound, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University, 651 Dongfengdong Road, Guangzhou, 510060, China
| | - Yan Li
- Department of Gastrointestinal Oncology, Key laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital & Institute, Beijing, China
| | - Shunji Gao
- Department of Ultrasound, General Hospital of Central Theater, Wuhan, China
| | - Huilong Huang
- Department of Ultrasound, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Ningshan Li
- Department of Ultrasound, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Tingting Luo
- Department of Ultrasound, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Xiao Luo
- Department of Radiology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University, Guangzhou, China
| | - Miaozhen Qiu
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University, Guangzhou, China
| | - Dongsheng Zhang
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University, Guangzhou, China
| | - Kun Yan
- Department of Ultrasound, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital & Institute, No. 52 of Fucheng Road, Haidian District, Beijing, 100142, China.
| | - Anhua Li
- Department of Ultrasound, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University, 651 Dongfengdong Road, Guangzhou, 510060, China.
| | - Zheng Liu
- Department of Ultrasound, Xinqiao Hospital, Army Medical University, Chongqing, China.
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Gao J, Pan P, Li J, Tang M, Yan X, Zhang X, Wang M, Ai K, Lei X, Zhang X, Zhang D. Analysis of white matter tract integrity using diffusion kurtosis imaging reveals the correlation of white matter microstructural abnormalities with cognitive impairment in type 2 diabetes mellitus. Front Endocrinol (Lausanne) 2024; 15:1327339. [PMID: 38487342 PMCID: PMC10937453 DOI: 10.3389/fendo.2024.1327339] [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] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 02/13/2024] [Indexed: 03/17/2024] Open
Abstract
Background This study aimed to identify disruptions in white matter integrity in type 2 diabetes mellitus (T2DM) patients by utilizing the white matter tract integrity (WMTI) model, which describes compartment-specific diffusivities in the intra- and extra-axonal spaces, and to investigate the relationship between WMTI metrics and clinical and cognitive measurements. Methods A total of 73 patients with T2DM and 57 healthy controls (HCs) matched for age, sex, and education level were enrolled and underwent diffusional kurtosis imaging and cognitive assessments. Tract-based spatial statistics (TBSS) and atlas-based region of interest (ROI) analysis were performed to compare group differences in diffusional metrics, including fractional anisotropy (FA), mean diffusivity (MD), axonal water fraction (AWF), intra-axonal diffusivity (Daxon), axial extra-axonal space diffusivity (De,//), and radial extra-axonal space diffusivity (De,⊥) in multiple white matter (WM) regions. Relationships between diffusional metrics and clinical and cognitive functions were characterized. Results In the TBSS analysis, the T2DM group exhibited decreased FA and AWF and increased MD, De,∥, and De,⊥ in widespread WM regions in comparison with the HC group, which involved 56.28%, 32.07%, 73.77%, 50.47%, and 75.96% of the mean WM skeleton, respectively (P < 0.05, TFCE-corrected). De,⊥ detected most of the WM changes, which were mainly located in the corpus callosum, internal capsule, external capsule, corona radiata, posterior thalamic radiations, sagittal stratum, cingulum (cingulate gyrus), fornix (stria terminalis), superior longitudinal fasciculus, and uniform fasciculus. Additionally, De,⊥ in the genu of the corpus callosum was significantly correlated with worse performance in TMT-A (β = 0.433, P < 0.001) and a longer disease duration (β = 0.438, P < 0.001). Conclusions WMTI is more sensitive than diffusion tensor imaging in detecting T2DM-related WM microstructure abnormalities and can provide novel insights into the possible pathological changes underlying WM degeneration in T2DM. De,⊥ could be a potential imaging marker in monitoring disease progression in the brain and early intervention treatment for the cognitive impairment in T2DM.
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Affiliation(s)
- Jie Gao
- Department of MRI, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Peichun Pan
- Department of Graduate, Shaanxi University of Chinese Medicine, Xianyang, China
| | - Jing Li
- Department of Graduate, Xi’an Medical University, Xi’an, China
| | - Min Tang
- Department of MRI, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Xuejiao Yan
- Department of MRI, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Xin Zhang
- Department of MRI, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Man Wang
- Department of MRI, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Kai Ai
- Department of Clinical Science, Philips Healthcare, Xi’an, China
| | - Xiaoyan Lei
- Department of MRI, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Xiaoling Zhang
- Department of MRI, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Dongsheng Zhang
- Department of MRI, Shaanxi Provincial People’s Hospital, Xi’an, China
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Zhang D, Yang Y, Yi Y, Wang D, Jiang L, Huang H, Jin L, Meng H, Xia F, Guo G. Incidence and influence factors of venous thromboembolism in traumatic rib fracture patient: a multicenter study. J Orthop Surg Res 2024; 19:152. [PMID: 38395963 PMCID: PMC10893601 DOI: 10.1186/s13018-024-04622-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 02/11/2024] [Indexed: 02/25/2024] Open
Abstract
BACKGROUND This study aimed to determine the incidence and influencing factors of venous thromboembolism (VTE) in patients with traumatic rib fractures. METHODS The retrospective study analyzed medical records of patients with traumatic rib fractures from 33 hospitals. RESULTS The overall incidence of VTE in hospitalized patients with traumatic rib fractures was 8.1%. Patients with isolated traumatic rib fractures had a significantly lower incidence of VTE (4.4%) compared to patients with rib fractures combined with other injuries (12.0%). Multivariate analysis identified the number of rib fractures as an independent risk factor for thrombosis. Surgical stabilization of isolated rib fractures involving three or more ribs was associated with a lower VTE incidence compared to conservative treatment. CONCLUSIONS Patients with rib fractures have a higher incidence of VTE, positively correlated with the number of rib fractures. However, the occurrence of thrombosis is relatively low in isolated rib fractures. Targeted thromboprophylaxis strategies should be implemented for these patients, and surgical stabilization of rib fractures may be beneficial in reducing the risk of VTE.
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Affiliation(s)
- Dongsheng Zhang
- Department of Cardiothoracic Surgery, Shijiazhuang Third Hospital, Shijiazhuang, 050000, Hebei, China.
| | - Yi Yang
- Department of Thoracic Surgery, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People's Hospital, Shanghai, 200233, China.
| | - Yunfeng Yi
- Department of Cardiothoracic Surgery, Dongnan Hospital of Xiamen University, School of Medicine, Xiamen University, Zhangzhou, 363000, Fujian, China
| | - Dongbin Wang
- Department of Cardiothoracic Surgery, Tianjin Hospital Affiliated to Tianjin University, Tianjin, 300211, China
| | - Lei Jiang
- The Second Department of Surgery (Thoracic and Breast Department), Foshan Hospital of Traditional Chinese Medicine, Foshan, 528000, Guangdong, China
| | - Hai Huang
- Department of Thoracic Surgery, Fuzhou Second Hospital, Fuzhou, 350007, Fujian, China
| | - Longyu Jin
- Department of Thoracic Surgery, The Third Xiangya Hospital of Central South University, Changsha, 410000, Hunan, China
| | - Hui Meng
- Department of Thoracic Surgery, The Fifth Affiliated Hospital of Zunyi Medical University, Zhuhai, 519100, Guangdong, China
| | - Fei Xia
- Department of Emergency Surgery, The Affiliated Hospital of Guizhou Medical University, Guiyang, 550001, Guizhou, China
| | - Guangwei Guo
- Department of Cardiothoracic Surgery, Second Hospital of Shanxi Medical University, Taiyuan, 030000, Shanxi, China
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Sun Z, Zhao H, Ma L, Shi Y, Ji M, Sun X, Ma D, Zhou W, Huang T, Zhang D. The quest for nanoparticle-powered vaccines in cancer immunotherapy. J Nanobiotechnology 2024; 22:61. [PMID: 38355548 PMCID: PMC10865557 DOI: 10.1186/s12951-024-02311-z] [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: 10/18/2023] [Accepted: 01/26/2024] [Indexed: 02/16/2024] Open
Abstract
Despite recent advancements in cancer treatment, this disease still poses a serious threat to public health. Vaccines play an important role in preventing illness by preparing the body's adaptive and innate immune responses to combat diseases. As our understanding of malignancies and their connection to the immune system improves, there has been a growing interest in priming the immune system to fight malignancies more effectively and comprehensively. One promising approach involves utilizing nanoparticle systems for antigen delivery, which has been shown to potentiate immune responses as vaccines and/or adjuvants. In this review, we comprehensively summarized the immunological mechanisms of cancer vaccines while focusing specifically on the recent applications of various types of nanoparticles in the field of cancer immunotherapy. By exploring these recent breakthroughs, we hope to identify significant challenges and obstacles in making nanoparticle-based vaccines and adjuvants feasible for clinical application. This review serves to assess recent breakthroughs in nanoparticle-based cancer vaccinations and shed light on their prospects and potential barriers. By doing so, we aim to inspire future immunotherapies for cancer that harness the potential of nanotechnology to deliver more effective and targeted treatments.
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Affiliation(s)
- Zhe Sun
- Department of Stomatology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
| | - Hui Zhao
- Department of Endodontics, East Branch of Jinan Stomatological Hospital, Jinan, 250000, Shandong, China
| | - Li Ma
- Department of Stomatology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
| | - Yanli Shi
- Department of Stomatology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
| | - Mei Ji
- Department of Stomatology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
| | - Xiaodong Sun
- Department of Endodontics, Gaoxin Branch of Jinan Stomatological Hospital, Jinan, 250000, Shandong, China
| | - Dan Ma
- Department of Stomatology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
| | - Wei Zhou
- Department of Stomatology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
| | - Tao Huang
- Department of Biomedical Engineering, Graeme Clark Institute, The University of Melbourne, Parkville, VIC, 3010, Australia.
| | - Dongsheng Zhang
- Department of Stomatology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China.
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13
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Li XP, Li Y, Liu L, Yuan ZT, Wang YC, Dong YC, Zhang DS, Feng J, Chen YN, Wang SB. [Clinical study of the efficacies of ruxolitinib plus low-dose PTCY for acute GVHD prevention after haploidentical transplantation in malignant hematological diseases]. Zhonghua Xue Ye Xue Za Zhi 2024; 45:128-133. [PMID: 38604788 DOI: 10.3760/cma.j.cn121090-20230929-00153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
Objective: To investigate and verify a novel acute graft versus host disease (aGVHD) prevention protocol in the context of haploidentical hematopoietic stem cell transplantation (haplo-HSCT) . Methods: Patients who underwent haplo-HSCT in our center between January 2022 and December 2022 were included. All patients received reduced doses of cyclophosphamide, Rabbit anti-human tymoglobulin, ruxolitinib, methotrexate, cyclosporine, and MMF to prevent aGVHD. The transplantation outcomes, complications, and survival rate of all patients were investigated. Results: A total of 52 patients with haplo-HSCT were enrolled, 29 (55.8%) male and 23 (44.2%) female, with a median age of 28 (5-59) years. There were 25 cases of acute myeloid leukemia, 17 cases of acute lymphocyte leukemia, 6 cases of myelodysplastic syndrome, 2 cases of chronic myeloid leukemia and 2 cases of myeloproliferative neoplasms. 98.1% of patients had successful engraftment. The incidence of Ⅱ-Ⅳ aGVHD and Ⅲ-Ⅳ aGVHD was 19.2% (95% CI 8.2% -30.3% ) and 7.7% (95% CI 0.2% -15.2% ), respectively. No patients experienced severe gastrointestinal mucositis. The Epstein-Barr virus and CMV reactivation rates were 40.4% and 21.3%, respectively. 9.6% of patients relapsed during followup, with 1-year overall survival, progression-free survival, and non-relapse mortality rates of 86.5% (95% CI 76.9% -96.1% ), 78.8% (95% CI 67.4% -90.3% ) and 11.5% (95% CI 2.6% -20.5% ), respectively. Conclusion: Ruxolitinib combined with a low dose of PTCY is a safe and effective first-line aGVHD prevention strategy.
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Affiliation(s)
- X P Li
- Department of Hematology, 920th Hospital of Joint Logistics Support Force, Kunming 650000, China
| | - Y Li
- Department of Hematology, 920th Hospital of Joint Logistics Support Force, Kunming 650000, China
| | - L Liu
- Department of Hematology, 920th Hospital of Joint Logistics Support Force, Kunming 650000, China
| | - Z T Yuan
- Department of Hematology, 920th Hospital of Joint Logistics Support Force, Kunming 650000, China
| | - Y C Wang
- Department of Hematology, 920th Hospital of Joint Logistics Support Force, Kunming 650000, China
| | - Y C Dong
- Department of Hematology, 920th Hospital of Joint Logistics Support Force, Kunming 650000, China
| | - D S Zhang
- Department of Hematology, 920th Hospital of Joint Logistics Support Force, Kunming 650000, China
| | - J Feng
- Department of Hematology, 920th Hospital of Joint Logistics Support Force, Kunming 650000, China
| | - Y N Chen
- Department of Hematology, 920th Hospital of Joint Logistics Support Force, Kunming 650000, China
| | - S B Wang
- Department of Hematology, 920th Hospital of Joint Logistics Support Force, Kunming 650000, China
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Zhang R, Fau M, Mah C, Eléaume M, Zhang D, Zhou Y, Lu B, Wang C. Systematics of deep-sea starfish order Brisingida (Echinodermata: Asteroidea), with a revised classification and assessments of morphological characters. Mol Phylogenet Evol 2024; 191:107993. [PMID: 38103706 DOI: 10.1016/j.ympev.2023.107993] [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: 10/08/2023] [Revised: 12/06/2023] [Accepted: 12/12/2023] [Indexed: 12/19/2023]
Abstract
Brisingida Fisher 1928 is one of the seven currently recognised starfish orders, and one of the least known taxa as being exclusive deep-sea inhabitants. Modern deep-sea expeditions revealed their common occurrences in various deep-sea settings including seamounts, basins and hydrothermal vent peripheral, underlining the necessity of clarifying their global diversity and phylogeny. In this study, we present a comprehensive molecular phylogeny of Brisingida which encompasses the highest taxonomic diversity to date. DNA sequences (COI, 16S, 12S and 28S) were obtained from 225 specimens collected in the global ocean, identified as 58 species spanning 15 of the 17 extant genera. Phylogenetic relationship was inferred using both maximum likelihood and Bayesian inference methods, revealing polyphyletic families and genera and indicating nonnegligible bias in prior morphology-based systematics. Based on the new phylogeny, a novel classification of the order, consisting of 5 families and 17 genera, is proposed. Families Odinellidae, Brisingasteridae and Novodiniidae (sensu Clark and Mah, 2001) were resurrected to encompass the genera Odinella, Brisingaster and Novodinia. Brisingidae and Freyellidae were revised to include 11 and 3 genera, respectively. A new genus and species, two new subgenera and seven new combinations are described and a key to each genus and family is provided. Transformations of morphological traits were evaluated under the present phylogenetic hypothesis. A series of paedomorphic characters were found in many genera and species, which led to a high degree of homoplasy across phylogenetically distant groups. Our results provide new insights in the phylogeny and ontogeny of the order, and highlight the necessity to evaluate character convergence under sound phylogenetic hypothesis.
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Affiliation(s)
- Ruiyan Zhang
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China; School of Oceanography, Shanghai Jiao Tong University, Shanghai, China
| | - Marine Fau
- Centre de Recherche en Paléontologie - Paris, Sorbonne Université, 4 place Jussieu, 75005 Paris, France; Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, DC, USA
| | - Christopher Mah
- Department of Invertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington, DC, USA
| | - Marc Eléaume
- Départment Origines et Évolution, Muséum National d'Histoire Naturelle, Paris, France
| | - Dongsheng Zhang
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China; School of Oceanography, Shanghai Jiao Tong University, Shanghai, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China
| | - Yadong Zhou
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China
| | - Bo Lu
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China
| | - Chunsheng Wang
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China; School of Oceanography, Shanghai Jiao Tong University, Shanghai, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China.
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15
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Huang Y, Zhang X, Cheng M, Yang Z, Liu W, Ai K, Tang M, Zhang X, Lei X, Zhang D. Altered cortical thickness-based structural covariance networks in type 2 diabetes mellitus. Front Neurosci 2024; 18:1327061. [PMID: 38332862 PMCID: PMC10851426 DOI: 10.3389/fnins.2024.1327061] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 01/11/2024] [Indexed: 02/10/2024] Open
Abstract
Cognitive impairment is a common complication of type 2 diabetes mellitus (T2DM), and early cognitive dysfunction may be associated with abnormal changes in the cerebral cortex. This retrospective study aimed to investigate the cortical thickness-based structural topological network changes in T2DM patients without mild cognitive impairment (MCI). Fifty-six T2DM patients and 59 healthy controls underwent neuropsychological assessments and sagittal 3-dimensional T1-weighted structural magnetic resonance imaging. Then, we combined cortical thickness-based assessments with graph theoretical analysis to explore the abnormalities in structural covariance networks in T2DM patients. Correlation analyses were performed to investigate the relationship between the altered topological parameters and cognitive/clinical variables. T2DM patients exhibited significantly lower clustering coefficient (C) and local efficiency (Elocal) values and showed nodal property disorders in the occipital cortical, inferior temporal, and inferior frontal regions, the precuneus, and the precentral and insular gyri. Moreover, the structural topological network changes in multiple nodes were correlated with the findings of neuropsychological tests in T2DM patients. Thus, while T2DM patients without MCI showed a relatively normal global network, the local topological organization of the structural network was disordered. Moreover, the impaired ventral visual pathway may be involved in the neural mechanism of visual cognitive impairment in T2DM patients. This study enriched the characteristics of gray matter structure changes in early cognitive dysfunction in T2DM patients.
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Affiliation(s)
- Yang Huang
- Department of MRI, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Xin Zhang
- Department of MRI, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Miao Cheng
- Department of MRI, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Zhen Yang
- Department of MRI, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Wanting Liu
- Department of MRI, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Kai Ai
- Department of Clinical and Technical Support, Philips Healthcare, Xi’an, China
| | - Min Tang
- Department of MRI, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Xiaoling Zhang
- Department of MRI, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Xiaoyan Lei
- Department of MRI, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Dongsheng Zhang
- Department of MRI, Shaanxi Provincial People’s Hospital, Xi’an, China
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16
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Li J, Wang T, Shi Y, Ye Z, Zhang X, Ming J, Zhang Y, Hu X, Li Y, Zhang D, Xu Q, Yang J, Chen X, Liu N, Su X. A continuously efficient O 2-supplying strategy for long-term modulation of hypoxic tumor microenvironment to enhance long-acting radionuclides internal therapy. J Nanobiotechnology 2024; 22:7. [PMID: 38166931 PMCID: PMC10763042 DOI: 10.1186/s12951-023-02268-5] [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: 11/18/2023] [Accepted: 12/13/2023] [Indexed: 01/05/2024] Open
Abstract
Radionuclides internal radiotherapy (RIT) is a clinically powerful method for cancer treatment, but still poses unsatisfactory therapeutic outcomes due to the hypoxic characteristic of tumor microenvironment (TME). Catalase (CAT) or CAT-like nanomaterials can be used to enzymatically decompose TME endogenous H2O2 to boost TME oxygenation and thus alleviate the hypoxic level within tumors, but their effectiveness is still hindered by the short-lasting of hypoxia relief owing to their poor stability or degradability, thereby failing to match the long therapeutic duration of RIT. Herein, we proposed an innovative strategy of using facet-dependent CAT-like Pd-based two-dimensional (2D) nanoplatforms to continuously enhance RIT. Specifically, rationally designed 2D Pd@Au nanosheets (NSs) enable consistent enzymatic conversion of endogenous H2O2 into O2 to overcome hypoxia-induced RIT resistance. Furthermore, partially coated Au layer afford NIR-II responsiveness and moderate photothermal treatment that augmenting their enzymatic functionality. This approach with dual-effect paves the way for reshaping TME and consequently facilitating the brachytherapy ablation of cancer. Our work offers a significant advancement in the integration of catalytic nanomedicine and nuclear medicine, with the overarching goal of amplifying the clinical benefits of RIT-treated patients.
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Affiliation(s)
- Jingchao Li
- Department of Nuclear Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Tingting Wang
- Department of Nuclear Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Yuanfei Shi
- Department of Hematology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Zichen Ye
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, and Engineering Research Center for Nano-Preparation Technology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Xun Zhang
- Department of Nuclear Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Jiang Ming
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, and Engineering Research Center for Nano-Preparation Technology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Yafei Zhang
- Department of Nuclear Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Xinyan Hu
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, and Engineering Research Center for Nano-Preparation Technology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Yun Li
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, 361005, China
| | - Dongsheng Zhang
- Department of Nuclear Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Qianhe Xu
- Department of Nuclear Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Jun Yang
- Department of Nuclear Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Xiaolan Chen
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, and Engineering Research Center for Nano-Preparation Technology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.
| | - Nian Liu
- Department of Nuclear Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China.
| | - Xinhui Su
- Department of Nuclear Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China.
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Zhang D, Tang W, Niu H, Tse W, Ruan HB, Dolznig H, Knösel T, Karl-Heinz F, Themanns M, Wang J, Song M, Denson L, Kenner L, Moriggl R, Zheng Y, Han X. Monogenic deficiency in murine intestinal Cdc42 leads to mucosal inflammation that induces crypt dysplasia. Genes Dis 2024; 11:413-429. [PMID: 37588188 PMCID: PMC10425749 DOI: 10.1016/j.gendis.2022.11.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 11/22/2022] [Accepted: 11/25/2022] [Indexed: 01/04/2023] Open
Abstract
CDC42 controls intestinal epithelial (IEC) stem cell (IESC) division. How aberrant CDC42 initiates intestinal inflammation or neoplasia is unclear. We utilized models of inflammatory bowel diseases (IBD), colorectal cancer, aging, and IESC injury to determine the loss of intestinal Cdc42 upon inflammation and neoplasia. Intestinal specimens were collected to determine the levels of CDC42 in IBD or colorectal cancer. Cdc42 floxed mice were crossed with Villin-Cre, Villin-CreERT2 and/or Lgr5-eGFP-IRES-CreERT2, or Bmi1-CreERT2 mice to generate Cdc42 deficient mice. Irradiation, colitis, aging, and intestinal organoid were used to evaluate CDC42 upon mucosal inflammation, IESC/progenitor regenerative capacity, and IEC repair. Our studies revealed that increased CDC42 in colorectal cancer correlated with lower survival; in contrast, lower levels of CDC42 were found in the inflamed IBD colon. Colonic Cdc42 depletion significantly reduced Lgr5+ IESCs, increased progenitors' hyperplasia, and induced mucosal inflammation, which led to crypt dysplasia. Colonic Cdc42 depletion markedly enhanced irradiation- or chemical-induced colitis. Depletion or inhibition of Cdc42 reduced colonic Lgr5+ IESC regeneration. In conclusion, depletion of Cdc42 reduces the IESC regeneration and IEC repair, leading to prolonged mucosal inflammation. Constitutive monogenic loss of Cdc42 induces mucosal inflammation, which could result in intestinal neoplasia in the context of aging.
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Affiliation(s)
- Dongsheng Zhang
- Division of Hematology and Oncology, Division of Cancer Biology, Department of Medicine, MetroHealth Medical Center (MHMC), Case Western Reserve University (CWRU), School of Medicine, Cleveland, OH 44109, USA
- Cancer Genomics and Epigenomics Program, Case Comprehensive Cancer Center, Case Western Reserve University (CWRU), Cleveland, OH 44106, USA
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Medical Center (CCHMC), Cincinnati, OH 45229, USA
| | - Wenjuan Tang
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Medical Center (CCHMC), Cincinnati, OH 45229, USA
- Children's Hospital of Fudan University, Shanghai 201102, China
| | - Haitao Niu
- School of Medicine, Jinan University, Guangzhou, Guangdong 510632, China
- Laboratory Animal Science (ILAS), Chinese Academy of Medical Science (CAMS) and Peking Union Medical College (PUMC), Beijing 100006, China
| | - William Tse
- Division of Hematology and Oncology, Division of Cancer Biology, Department of Medicine, MetroHealth Medical Center (MHMC), Case Western Reserve University (CWRU), School of Medicine, Cleveland, OH 44109, USA
- Cancer Genomics and Epigenomics Program, Case Comprehensive Cancer Center, Case Western Reserve University (CWRU), Cleveland, OH 44106, USA
| | - Hai-Bin Ruan
- Department of Integrative Biology and Physiology, University of Minnesota Medical School, Minneapolis, MI 55455, USA
| | - Helmut Dolznig
- Institute of Medical Genetics, Medical University of Vienna, Vienna 1040, Austria
| | - Thomas Knösel
- Institute of Pathology, Ludwig-Maximilians-University Munich, Munich 80539, Germany
| | | | - Madeleine Themanns
- Laboratory Animal Pathology, University of Veterinary Medicine Vienna, Vienna 1210, Austria
| | - Jiang Wang
- Department of Pathology, University of Cincinnati, Cincinnati, OH 45221, USA
| | - Mingquan Song
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266005, China
| | - Lee Denson
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Medical Center (CCHMC), Cincinnati, OH 45229, USA
| | - Lukas Kenner
- Department of Pathology, Medical University of Vienna, Vienna 1040, Austria
| | - Richard Moriggl
- Ludwig Boltzmann Institute for Cancer Research, Vienna 1090, Austria
- Medical University of Vienna, Vienna 1040, Austria
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna 1210, Austria
| | - Yi Zheng
- Division of Experimental Hematology, CCHMC, Cincinnati, OH 45229, USA
| | - Xiaonan Han
- Division of Hematology and Oncology, Division of Cancer Biology, Department of Medicine, MetroHealth Medical Center (MHMC), Case Western Reserve University (CWRU), School of Medicine, Cleveland, OH 44109, USA
- Cancer Genomics and Epigenomics Program, Case Comprehensive Cancer Center, Case Western Reserve University (CWRU), Cleveland, OH 44106, USA
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Li A, Lv D, Zhang Y, Zhang D, Zong Y, Shi X, Li P, Hao X. Elevated CO 2 concentration enhances drought resistance of soybean by regulating cell structure, cuticular wax synthesis, photosynthesis, and oxidative stress response. Plant Physiol Biochem 2024; 206:108266. [PMID: 38103338 DOI: 10.1016/j.plaphy.2023.108266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 11/04/2023] [Accepted: 12/06/2023] [Indexed: 12/19/2023]
Abstract
The atmospheric [CO2] and the frequency and intensity of extreme weather events such as drought are increased, leading to uncertainty to soybean production. Elevated [CO2] (eCO2) partially mitigates the adverse effects of drought stress on crop growth and photosynthetic performance, but the mitigative mechanism is not well understood. In this study, soybean seedlings under drought stress simulated by PEG-6000 were grown in climate chambers with different [CO2] (400 μmol mol-1 and 700 μmol mol-1). The changes in anatomical structure, wax content, photosynthesis, and antioxidant enzyme were investigated by the analysis of physiology and transcriptome sequencing (RNA-seq). The results showed that eCO2 increased the thickness of mesophyll cells and decreased the thickness of epidermal cells accompanied by reduced stomatal conductance, thus reducing water loss in soybean grown under drought stress. Meanwhile, eCO2 up-regulated genes related to wax anabolism, thus producing more epidermal wax. Under drought stress, eCO2 increased net photosynthetic rate (PN), ribulose-1,5-bisphosphate carboxylase/oxygenase activity, and alerted the gene expressions in photosynthesis. The increased sucrose synthesis and decreased sucrose decomposition contributed to the progressive increase in the soluble saccharide contents under drought stress with or without eCO2. In addition, eCO2 increased the expressions of genes associated with peroxidase (POD) and proline (Pro), thus enhancing POD activity and Pro content and improving the drought resistance in soybean. Taken together, these findings deepen our understanding of the effects of eCO2 on alleviating drought stress in soybean and provide potential target genes for the genetic improvement of drought tolerance in soybean.
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Affiliation(s)
- Ali Li
- College of Agriculture, Shanxi Agricultural University, Taigu, 030800, Shanxi, China; Hybrid Rape Research Center of Shaanxi Province, Yangling, 712100, China
| | - Danni Lv
- College of Agriculture, Shanxi Agricultural University, Taigu, 030800, Shanxi, China
| | - Yan Zhang
- College of Agriculture, Shanxi Agricultural University, Taigu, 030800, Shanxi, China
| | - Dongsheng Zhang
- College of Agriculture, Shanxi Agricultural University, Taigu, 030800, Shanxi, China
| | - Yuzheng Zong
- College of Agriculture, Shanxi Agricultural University, Taigu, 030800, Shanxi, China
| | - Xinrui Shi
- College of Agriculture, Shanxi Agricultural University, Taigu, 030800, Shanxi, China
| | - Ping Li
- College of Agriculture, Shanxi Agricultural University, Taigu, 030800, Shanxi, China.
| | - Xingyu Hao
- College of Agriculture, Shanxi Agricultural University, Taigu, 030800, Shanxi, China.
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Zhang D, Huang Y, Liu S, Gao J, Liu W, Liu W, Ai K, Lei X, Zhang X. Structural and functional connectivity alteration patterns of the cingulate gyrus in Type 2 diabetes. Ann Clin Transl Neurol 2023; 10:2305-2315. [PMID: 37822294 PMCID: PMC10723245 DOI: 10.1002/acn3.51918] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 08/22/2023] [Accepted: 09/08/2023] [Indexed: 10/13/2023] Open
Abstract
OBJECTIVE We aimed to reveal the role of structural and functional alterations of cingulate gyrus in early cognitive impairment in Type 2 diabetes mellitus (T2DM) patients. METHODS Fifty-six T2DM patients and 60 healthy controls (HCs) underwent a neuropsychological assessment and sagittal three-dimensional T1-weighted and resting-state functional MRI. Differences in the cortical thickness of the cingulate cortex and the functional connectivity (FC) of the nine subregions of the cingulate gyrus and the whole brain were compared between T2DM patients and HCs. Correlation analysis was performed between cortex thickness and FC and the participants' clinical/cognitive variables. RESULTS The cortical thickness of the cingulate gyrus was not significantly different between T2DM patients and HCs. However, the T2DM patients showed significantly lower FC between the pregenual ACC (pACC) and the bilateral hippocampus, significantly higher FC between the pACC and bilateral lateral prefrontal cortex (LPFC) and left precentral gyrus, and significantly lower FC between the retrosplenial cortex (RSC) and right cerebellar Crus I. The FC between the pACC and the left hippocampus was negatively correlated with the FC between the pACC and LPFC (r = -0.306, p = 0.022). INTERPRETATION The pACC and the RSC show dysfunctional connectivity before the appearance of structural abnormalities in T2DM patients. Abnormal FC of the pACC with the bilateral hippocampus and LPFC may imply a neural compensatory mechanism for memory function. These findings provide valuable information and new directions for possible interventions for the T2DM-related cognitive impairment.
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Affiliation(s)
- Dongsheng Zhang
- Department of MRIShaanxi Provincial People's HospitalXi'an710068China
| | - Yang Huang
- Department of MRIShaanxi Provincial People's HospitalXi'an710068China
| | - Shasha Liu
- Department of MRIShaanxi Provincial People's HospitalXi'an710068China
| | - Jie Gao
- Department of MRIShaanxi Provincial People's HospitalXi'an710068China
| | - Weirui Liu
- Department of MRIShaanxi Provincial People's HospitalXi'an710068China
| | - Wanting Liu
- Department of MRIShaanxi Provincial People's HospitalXi'an710068China
| | - Kai Ai
- Department of Clinical SciencePhilips HealthcareXi'an710000China
| | - Xiaoyan Lei
- Department of MRIShaanxi Provincial People's HospitalXi'an710068China
| | - Xiaoling Zhang
- Department of MRIShaanxi Provincial People's HospitalXi'an710068China
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20
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Hu L, Han X, Zhang D, Wu J, Huang S. Buccal plate preservation with immediate post-extraction implant placement and provisionalization in anterior maxillary tooth: Preliminary results of a new technique using Teruplug collagen. J Stomatol Oral Maxillofac Surg 2023; 124:101536. [PMID: 37307912 DOI: 10.1016/j.jormas.2023.101536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 06/09/2023] [Indexed: 06/14/2023]
Abstract
BACKGROUND Bone resorption and remodelling are inevitable results of dental extraction and begin immediately after the extraction procedure. The buccal plate is especially predisposed to these phenomena, and if affected, may result in an increased risk of facial soft-tissue recession and other adverse clinical effects that may decrease the predictability of implant placement or impair the final aesthetic result. PERPOSE The application of Teruplug collagen to prevent buccal plate resorption technique is a new technique aimed at maintaining or improving the appearance of the soft and hard tissues after dental extraction procedures. METHODS All patients underwent teeth extraction and buccal plate preservation followed by immediate implant placement and provisionalisation using Teruplug collagen. The distance from the external surface of the labial bone to the buccal surface of the implant was measured immediately after placement 6 months and 12 months using computed tomography(CT) images. The aesthetic outcome of 35 implant supported dentures was evaluated by the pink aesthetic score (PAS). Patient aesthetic satisfaction was investigated by a visual analogue scale (VAS). RESULTS In a four-wall intact socket, this approach is aimed at optimising the ability of the Teruplug collagen to improve regeneration and maintain or improve labial/buccal contours without interfering with the natural healing capability of the alveolus after extraction and implant placement. During the different observation period, there were no major biologic or prosthodontic complications as determined by a clinical examination at each follow-up visit. CONCLUSIONS Buccal plate preservation as described may help to maintain or improve the appearance and contours of the ridge after tooth extraction, laying the groundwork for optimal functional and aesthetic replacement of the missing tooth with an implant-supported prosthesis.
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Affiliation(s)
- Lihua Hu
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250012, China
| | - Xiaohui Han
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250012, China
| | - Dongsheng Zhang
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250012, China
| | - Jinfeng Wu
- Shanghai Teelthy dental clinic, Shanghai, China
| | - Shengyun Huang
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250012, China.
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21
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Wang C, Li J, Shao T, Zhang D, Mai Y, Li Y, Besenbacher F, Niemantsverdriet H, Rosei F, Zhong J, Su R. Electric Field Enhanced Ammoxidation of Aldehydes Using Supported Fe Clusters Under Ambient Oxygen Pressure. Angew Chem Int Ed Engl 2023:e202313313. [PMID: 37930876 DOI: 10.1002/anie.202313313] [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: 09/07/2023] [Revised: 10/18/2023] [Accepted: 11/06/2023] [Indexed: 11/08/2023]
Abstract
Heterogeneous catalytic ammoxidation provides an eco-friendly route for the cyanide-free synthesis of nitrile compounds, which are important precursors for synthetic chemistry and pharmaceutical applications. However, in general such a process requires high pressures of molecular oxygen at elevated temperatures to accelerate the oxygen reduction and imine dehydrogenation steps, which is highly risky in practical applications. Here, we report an electric field enhanced ammoxidation system using a supported Fe clusters catalyst (Fe/NC), which enables efficient synthesis of nitriles from the corresponding aldehydes under ambient air pressure at room temperature (RT). A synergistic effect between the external electric field and the Fe/NC catalyst promotes the ammonia activation and the dehydrogenation of the generated imine intermediates and avoids the unwanted backwards reaction to aldehydes. This electric field enhanced ammoxidation system presents high efficiency and selectivity for the conversion of a series of aldehydes under mild conditions with high durability, rendering it an attractive process for the green synthesis of nitriles with fragile functional groups.
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Affiliation(s)
- Chao Wang
- Soochow Institute for Energy and Materials InnovationS (SIEMIS), Soochow University, Suzhou, 215006, China
- SynCat@Beijing, Synfuels China Technology Co. Ltd., Leyuan South Street II, No.1, Yanqi Economic Development Zone C#, Beijing, 101407, China
| | - Jialu Li
- Soochow Institute for Energy and Materials InnovationS (SIEMIS), Soochow University, Suzhou, 215006, China
- SynCat@Beijing, Synfuels China Technology Co. Ltd., Leyuan South Street II, No.1, Yanqi Economic Development Zone C#, Beijing, 101407, China
| | - Tianyu Shao
- Soochow Institute for Energy and Materials InnovationS (SIEMIS), Soochow University, Suzhou, 215006, China
- SynCat@Beijing, Synfuels China Technology Co. Ltd., Leyuan South Street II, No.1, Yanqi Economic Development Zone C#, Beijing, 101407, China
| | - Dongsheng Zhang
- Soochow Institute for Energy and Materials InnovationS (SIEMIS), Soochow University, Suzhou, 215006, China
- SynCat@Beijing, Synfuels China Technology Co. Ltd., Leyuan South Street II, No.1, Yanqi Economic Development Zone C#, Beijing, 101407, China
| | - Yuanqiang Mai
- Soochow Institute for Energy and Materials InnovationS (SIEMIS), Soochow University, Suzhou, 215006, China
- SynCat@Beijing, Synfuels China Technology Co. Ltd., Leyuan South Street II, No.1, Yanqi Economic Development Zone C#, Beijing, 101407, China
| | - Yongwang Li
- SynCat@Beijing, Synfuels China Technology Co. Ltd., Leyuan South Street II, No.1, Yanqi Economic Development Zone C#, Beijing, 101407, China
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, CAS, Taiyuan, 030001, China
| | - Flemming Besenbacher
- Interdisciplinary Nanoscience Center, Aarhus University, Gustav Wieds Vej 14, 8000, Aarhus, Denmark
| | - Hans Niemantsverdriet
- SynCat@Beijing, Synfuels China Technology Co. Ltd., Leyuan South Street II, No.1, Yanqi Economic Development Zone C#, Beijing, 101407, China
- Syngaschem BV, Valeriaanlaan 16, 5672 XD, Nuenen (The, Netherlands
| | - Federico Rosei
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via Giorgeri 1, 34127, Trieste, Italy
| | - Jun Zhong
- Institute of Functional Nano and Soft Materials Laboratory (FUNSOM), Soochow University, Suzhou, 215123, China
| | - Ren Su
- Soochow Institute for Energy and Materials InnovationS (SIEMIS), Soochow University, Suzhou, 215006, China
- SynCat@Beijing, Synfuels China Technology Co. Ltd., Leyuan South Street II, No.1, Yanqi Economic Development Zone C#, Beijing, 101407, China
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22
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Zhao Y, Yang S, Nie H, Zhang D, Wang T, Sun Q, Wang X, Sun Y. Promotion of colorectal cancer progression by immune-related lnc-SOX9-4 via suppression of YBX1 poly-ubiquitination and degradation. Cell Signal 2023; 111:110854. [PMID: 37611648 DOI: 10.1016/j.cellsig.2023.110854] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 08/01/2023] [Accepted: 08/14/2023] [Indexed: 08/25/2023]
Abstract
BACKGROUND Recent research has highlighted the versatile functions of long non-coding RNAs (lncRNAs) in the onset and progression of various malignancies. Still, insufficient knowledge is available on how lnc-SOX9-4 functions in colorectal cancer (CRC) progression. METHODS Bioinformatics analysis was used to identify a novel lncRNA (lnc-SOX9-4), and the expression pattern of the RNA in CRC was verified using qRT-PCR. Gene ontology (GO) term analysis and Gene set enrichment analysis (GSEA) were implemented for the identification of the related mechanisms and roles of lnc-SOX9-4. Immune infiltration analysis was conducted for assessment of how lnc-SOX9-4 is linked to tumor immune cell infiltration level. Both in vitro and in vivo phenotype analyses were conducted for scrutinizing how lnc-SOX9-4 impacts the proliferation and metastasis of CRC. RNA pulldown, mass spectrometry analysis, fluorescent in situ hybridization (FISH), western blotting, and RIP assay aided in verifying lnc-SOX9-4 mechanisms linked to CRC progression. RESULTS An upregulation of lnc-SOX9-4 was observed in the sample CRC cells and tissues. Elevated lnc-SOX9-4 levels showed a positive association with poor clinical prognosis. Lnc-SOX9-4 was closely correlated to several types of immune infiltrating cells. Functionally, the knockdown of lnc-SOX9-4 significantly inhibited CRC cell proliferation, migration, and invasion abilities. Mechanistically, YBX1 was identified as lnc-SOX9-4, specifically interacting protein in the nucleus. Lnc-SOX9-4 could stabilize YBX1 protein levels by inhibiting poly-ubiquitination and degradation of YBX1. Furthermore, phenotype rescue experiments reveal that lnc-SOX9-4 enhanced the CRC cellular potential to proliferate and metastasize by regulating YBX1 levels. CONCLUSIONS Lnc-SOX9-4 promoted CRC progression by suppressing cytoplasmic translocation and promoting protein levels of YBX1 can serve as novel treatment targets for diagnosing and treating CRC.
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Affiliation(s)
- Yan Zhao
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China; Colorectal Institute of Nanjing Medical University, Nanjing 210029, China; The First School of Clinical Medicine, Nanjing Medical University, Nanjing 210029, China
| | - Sheng Yang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China; The First School of Clinical Medicine, Nanjing Medical University, Nanjing 210029, China
| | - Hongxu Nie
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China; The First School of Clinical Medicine, Nanjing Medical University, Nanjing 210029, China
| | - Dongsheng Zhang
- Colorectal Institute of Nanjing Medical University, Nanjing 210029, China; The First School of Clinical Medicine, Nanjing Medical University, Nanjing 210029, China
| | - Tuo Wang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China; The First School of Clinical Medicine, Nanjing Medical University, Nanjing 210029, China
| | - Qingyang Sun
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China; The First School of Clinical Medicine, Nanjing Medical University, Nanjing 210029, China
| | - Xiaowei Wang
- Colorectal Institute of Nanjing Medical University, Nanjing 210029, China; The First School of Clinical Medicine, Nanjing Medical University, Nanjing 210029, China
| | - Yueming Sun
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China; Colorectal Institute of Nanjing Medical University, Nanjing 210029, China; The First School of Clinical Medicine, Nanjing Medical University, Nanjing 210029, China.
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Wu A, Wang Y, Ali A, Xu Z, Zhang D, Zhumanov K, Sheng J, Yi J. Design of a multi-epitope vaccine against brucellosis fused to IgG-fc by an immunoinformatics approach. Front Vet Sci 2023; 10:1238634. [PMID: 37937155 PMCID: PMC10625910 DOI: 10.3389/fvets.2023.1238634] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 09/27/2023] [Indexed: 11/09/2023] Open
Abstract
Introduction Brucella, a type of intracellular Gram-negative bacterium, has unique features and acts as a zoonotic pathogen. It can lead to abortion and infertility in animals. Eliminating brucellosis becomes very challenging once it spreads among both humans and animals, putting a heavy burden on livestock and people worldwide. Given the increasing spread of brucellosis, it is crucial to develop improved vaccines for susceptible animals to reduce the disease's impact. Methods In this study, we effectively used an immunoinformatics approach with advanced computer software to carefully identify and analyze important antigenic parts of Brucella abortus. Subsequently, we skillfully designed chimeric peptides to enhance the vaccine's strength and effectiveness. We used computer programs to find four important parts of the Brucella bacteria that our immune system recognizes. Then, we carefully looked for eight parts that are recognized by a type of white blood cell called cytotoxic T cells, six parts recognized by T helper cells, and four parts recognized by B cells. We connected these parts together using a special link, creating a strong new vaccine. To make the vaccine even better, we added some extra parts called molecular adjuvants. These included something called human β-defensins 3 (hBD-3) that we found in a database, and another part that helps the immune system called PADRE. We attached these extra parts to the beginning of the vaccine. In a new and clever way, we made the vaccine even stronger by attaching a part from a mouse's immune system to the end of it. This created a new kind of vaccine called MEV-Fc. We used advanced computer methods to study how well the MEV-Fc vaccine interacts with certain receptors in the body (TLR-2 and TLR-4). Results In the end, Immunosimulation predictions showed that the MEV-Fc vaccine can make the immune system respond strongly, both in terms of cells and antibodies. Discussion In summary, our results provide novel insights for the development of Brucella vaccines. Although further laboratory experiments are required to assess its protective effect.
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Affiliation(s)
- Aodi Wu
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, China
| | - Yueli Wang
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, China
| | - Adnan Ali
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, China
| | - Zhenyu Xu
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, China
| | - Dongsheng Zhang
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, China
| | - Kairat Zhumanov
- College of Veterinary Medicine, Kazakhstan Kazakh State Agricultural University, Almaty, Kazakhstan
| | - Jinliang Sheng
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, China
| | - Jihai Yi
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, China
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Liu S, Liang H, Zong H, Yang H, Chen J, Zhang D, Su Z, Kong W. Experimental investigation of expansive bending pipe flow separation control using a surface dielectric barrier discharge plasma actuator. Sci Prog 2023; 106:368504231216832. [PMID: 38105488 PMCID: PMC10729633 DOI: 10.1177/00368504231216832] [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] [Indexed: 12/19/2023]
Abstract
Adverse pressure gradients can cause severe flow separation within typical S-shaped inlets. This results in a total pressure distortion at the aerodynamic interface plane (AIP). The expansive bending pipe, where flow separation also occurs due to the adverse pressure gradient, is the basis for investigations into S-shaped inlets. In this study, surface dielectric barrier discharge (SDBD) plasma actuators are used to moderate the total pressure distortion in the AIP of an expansive bending pipe under a 10 m/s incoming flow. Also, the influences of actuation voltage amplitude and pulsed frequency on the total pressure distortion of the AIP are investigated under two plasma actuation modes, nanosecond pulsed SDBD and alternating current (AC) SDBD. Under optimal actuation parameters, the nanosecond pulsed SDBD and the AC-SDBD can reduce the distortion index by 14.93% and 32.22%, respectively. The results demonstrate the effectiveness of SDBD plasma actuators in suppressing flow separation within expansive bending pipes.
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Affiliation(s)
- Shimin Liu
- National Key Lab of Aerospace Power System and Plasma Technology, Air Force Engineering University, Xi’an, People's Republic of China
| | - Hua Liang
- National Key Lab of Aerospace Power System and Plasma Technology, Air Force Engineering University, Xi’an, People's Republic of China
| | - Haohua Zong
- School of Mechanical Engineering, Xi'an Jiaotong University, Xi’an, People's Republic of China
| | - Hesen Yang
- National Key Lab of Aerospace Power System and Plasma Technology, Air Force Engineering University, Xi’an, People's Republic of China
| | - Jie Chen
- National Key Lab of Aerospace Power System and Plasma Technology, Air Force Engineering University, Xi’an, People's Republic of China
| | - Dongsheng Zhang
- National Key Lab of Aerospace Power System and Plasma Technology, Air Force Engineering University, Xi’an, People's Republic of China
| | - Zhi Su
- National Key Lab of Aerospace Power System and Plasma Technology, Air Force Engineering University, Xi’an, People's Republic of China
| | - Weiliang Kong
- The Green Aerotechnics Research Institute, Chongqing Jiaotong University, Chongqing, People's Republic of China
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Su X, Yang M, Li Y, Yan X, Hou R, Ayala JE, Li L, Yue C, Zhang D, Liu S. First Isolation and Identification of Aeromonas veronii in a Captive Giant Panda ( Ailuropoda melanoleuca). Animals (Basel) 2023; 13:2779. [PMID: 37685043 PMCID: PMC10487065 DOI: 10.3390/ani13172779] [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: 06/14/2023] [Revised: 08/07/2023] [Accepted: 08/29/2023] [Indexed: 09/10/2023] Open
Abstract
The objective of this study was to understand biological characteristics of one bacteria strain named as VPG which was isolated from multiple organs of a dead captive giant panda cub. Here, we use biochemical tests, 16S rRNA and gyrB genes for bacterial identification, the disk diffusion method for antibiotic resistance phenotype, smart chip real-time PCR for the antibiotic resistance genotype, multiplex PCR for determination of virulence genes, and the acute toxicity test in mice for testing the pathogenicity of isolates. The isolate was identified as A. veronii strain based on the biochemical properties and genetic analysis. We found that the strain carried 31 antibiotic resistance genes, revealed antimicrobial resistance phenotypically to several antibiotics including penicillin, ampicillin, oxacillin, amoxicillin, imipenem, and vancomycin, and carried virulence genes including aer, act, lip, exu, ser, luxs, and tapA. The main pathological changes in giant panda were congestion, necrotic lesions and a large number of bacteria in multiple organs. In addition, the LD50 in Kunming mice infected with strain VGP was 5.14 × 107 CFU/mL by intraperitoneal injection. Infection with strain VGP led to considerable histological lesions such as hemorrhage of internal organs, necrosis of lymphocytes and neurons in Kunming mice. Taken together, these results suggest that infection with strain VGP would be an important causes of death in this giant panda cub.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Songrui Liu
- Chengdu Research Base of Giant Panda Breeding, Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Sichuan Academy of Giant Panda, Chengdu 610081, China; (X.S.); (M.Y.); (Y.L.); (X.Y.); (R.H.); (J.E.A.); (L.L.); (C.Y.); (D.Z.)
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Li F, Zhang C, Xu L, Zhang S, Zhang D, Leng Y, Wu C, Chen J, Sun X. Neoadjuvant chemoradiotherapy with capecitabine based regimen in locally advanced rectal cancer: A retrospective study. Medicine (Baltimore) 2023; 102:e34985. [PMID: 37653735 PMCID: PMC10470674 DOI: 10.1097/md.0000000000034985] [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: 04/17/2023] [Revised: 08/06/2023] [Accepted: 08/07/2023] [Indexed: 09/02/2023] Open
Abstract
Capecitabine-based neoadjuvant chemoradiotherapy (nCRT) is the standard treatment for locally advanced rectal cancer. The objective of this study is to analyze overall survival (OS), disease-free survival (DFS) and prognostic factors of patients with stage II to III rectal cancer treated with nCRT in our institution. Between March 2014 to June 2020, 121 locally advanced rectal cancer patients were retrospectively reviewed and analyzed. All of the enrolled patients were treated with capecitabine-based nCRT (pelvic radiotherapy: 45-50.4 Gy, 1.8 Gy/d plus concomitant capecitabine-based chemotherapy), total mesorectal excision surgery (surgery was carried out 8-12 weeks after the end of CRT), and capecitabine-based adjuvant chemotherapy. We examined the pathological complete response rate, 3-year OS, 3-year DFS and the other prognostic factors. Kaplan-Meier method and Log-rank test were used to estimate and compare survival rate. With a median follow-up of 36 months, 3-year DFS and 3-year OS was 74.4% and 83.2%, respectively. Among the 121 patients, 24 achieved pathological complete remission (19.8%). After multivariate analysis, ypTNM stage (TNM stage after neoadjuvant therapy) was significantly associated with DFS. Positive mesorectal fasciae (MRF) status on magnetic resonance imaging and ypTNM stage were significantly related to OS. CRT with capecitabine based regimen provides high rates of survival and sphincter preservation with acceptable toxicity. YpTNM stage was significantly associated with DFS; magnetic resonance imaging MRF status and ypTNM stage were significant factors for OS after multivariate analysis. Distant metastasis is the dominant mode of treatment failure, and it is crucial to optimize systemic treatment for newly diagnosed patients.
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Affiliation(s)
- Fei Li
- Department of Radiation Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Chi Zhang
- Department of Radiation Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Liping Xu
- Department of Radiation Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Sheng Zhang
- Department of Radiation Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Dongsheng Zhang
- Department of Colorectal Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yan Leng
- Department of Pathology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Chenjiang Wu
- Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Jiayan Chen
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Xinchen Sun
- Department of Radiation Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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Zhang D, Hao W, Yang Q. Experimental Study on the Application of Recycled Concrete Waste Powder in Alkali-Activated Foamed Concrete. Materials (Basel) 2023; 16:5728. [PMID: 37687421 PMCID: PMC10488546 DOI: 10.3390/ma16175728] [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: 06/30/2023] [Revised: 08/06/2023] [Accepted: 08/13/2023] [Indexed: 09/10/2023]
Abstract
The alkali-activated cementitious material was prepared by partially replacing slag with recycled concrete powder (RCP). The influence of RCP substitution rates (10%, 20%, 30%, 40%, and 50% mass fraction) on the performance of alkali-activated slag-RCP-based (AASR) foamed concrete was studied. The fluidity, water absorption, softening coefficient, compressive strength, flexural strength, drying shrinkage, thermal conductivity, and frost resistance of AASR foamed concrete were studied. The results show that the fluidity and softening coefficient of AASR foamed concrete decreases with the increase in RCP content, and the fluidity range is 230-270 mm. Due to the porous structure of the RCP, the water absorption of AASR increases. With the increase in the curing age, the strength of AASR foamed concrete increases. The addition of RCP reduced the mechanical properties of AASR foamed concrete. Compared with the control group, the compressive strength of AASR50 decreased by 66.7% at 28 days, and the flexural strength decreased by 61.5%. However, the 28 d compressive strength of AASR foamed concrete under all RCP replacement rates still meets the standard value (0.6 MPa). The addition of RCP effectively reduces the thermal conductivity of the AASR foamed concrete, and when the RCP content is 50%, the thermal conductivity is lowest, 0.119 W/(m·K); the drying shrinkage of the AASR foamed concrete can be improved by adding RCP, and the drying shrinkage value is lowest when the RCP is 30%, which is 14.7% lower than that of the control group. The frost resistance of AASR foamed concrete decreases with the increase in the RCP content. When the recycled micropowder content is 20-50% and after 25 freeze-thaw cycles, AASR foamed concrete has reached freeze-thaw damage.
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Affiliation(s)
- Dongsheng Zhang
- School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China
- Research Group RecyCon, Department of Civil Engineering, KU Leuven, Campus Bruges, 8200 Bruges, Belgium
| | - Weiwei Hao
- School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China
| | - Qiuning Yang
- School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China
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Zhang T, Yang Z, Zhang D, Yang Q. Properties of Gangue Powder Modified Fly Ash-Based Geopolymer. Materials (Basel) 2023; 16:5719. [PMID: 37630010 PMCID: PMC10456960 DOI: 10.3390/ma16165719] [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: 06/30/2023] [Revised: 08/06/2023] [Accepted: 08/14/2023] [Indexed: 08/27/2023]
Abstract
The environmental and economic problems caused by gangue accumulation continue to worsen. Therefore, the implementation of a cost-effective method for utilizing gangue resources is urgent. In this study, different gangue powder (GP) contents (0%, 10%, 20%, 30%, 40%, and 50%) for mechanical-thermal activation were used to modify a fly ash-based geopolymer (FAG). Further, the effect of GP was revealed by investigating the setting time, fluidity, porosity, water absorption rate, mechanical properties, drying shrinkage, and microstructure. Results showed that the addition of GP reduced the fluidity and setting time of gangue powder-fly ash-base geopolymer (GPFAG), improved density, and decreased the water absorption rate of GPFAG. Moreover, its mechanical properties gradually improved. Compared with GPFAG0 (FAG with 0% GP), the 28-d compressive and flexural strengths of GPFAG50 (FAG with 50% GP) increased by 246.4% and 136.8%, respectively. The incorporation of GP increased the drying shrinkage. The results of XRD and FTIR analyses showed that the addition of GP increased the production of amorphous silica-aluminate gels, such as N-S-A-H and C-S-A-H. Moreover, strong Si-O-T vibrational peaks appeared in the range 743-1470 cm-1, characterizing the GPFAG strength and reaction degree.
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Affiliation(s)
- Tianhao Zhang
- School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China; (T.Z.); (Z.Y.)
| | - Zhenghui Yang
- School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China; (T.Z.); (Z.Y.)
| | - Dongsheng Zhang
- Research Group RecyCon, Department of Civil Engineering, Katholieke Universiteit Leuven, Campus Bruges, 8200 Bruges, Belgium;
| | - Qiuning Yang
- School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China; (T.Z.); (Z.Y.)
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Zhou X, Zhang D, Xie Z, Yang Y, Feng L, Hou C, Chen M, Liang Z, Zhang G, Lu H. Application of preoperative 3D printing in the internal fixation of posterior rib fractures with embracing device: a cohort study. BMC Surg 2023; 23:237. [PMID: 37580688 PMCID: PMC10426142 DOI: 10.1186/s12893-023-02128-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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 07/28/2023] [Indexed: 08/16/2023] Open
Abstract
BACKGROUND To explore the impact of preoperative 3D printing on the fixation of posterior rib fractures utilizing a memory alloy embracing device of rib under thoracoscopy. METHODS The enrolled patients were divided into the 3D printing (11 patients) and the non-3D printing (18 patients) groups, based on whether a 3D model of ribs was prepared prior to surgery. Analysis was conducted comparing the average fixation time per fracture, postoperative fixation loss, and poor reduction of fractured end between the two groups. RESULTS The average fixation time of each fracture was 27.2 ± 7.7 min in the 3D printing group and 29.3 ± 8.2 min in the non-3D printing group, with no statistically significant difference observed between the two groups (P > 0.05). The incidence of poor fracture fixation in the 3D printing group was statistically lower than that in the non-3D printing group (12.9% vs. 44.7%, P < 0.05). Further stratified analysis revealed that the off-plate rate in the 3D printing group and the non-3D group was (3.2% vs. 12.8%, P > 0.05), and the dislocation rate of the fractured end was (9.7% vs. 31.9%, P < 0.05). CONCLUSIONS The application of 3D printing technology to prepare the rib model before surgery is proves beneficial in reducing the occurrence of poor fixation of fractures and achieving precise and individualized treatment.
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Affiliation(s)
- Xuetao Zhou
- Department of Cardiothoracic Surgery, Shijiazhuang Third Hospital, No.15 Tiyu South Street, Chang an District, Shijiazhuang, 050000, Hebei Province, China
| | - Dongsheng Zhang
- Department of Cardiothoracic Surgery, Shijiazhuang Third Hospital, No.15 Tiyu South Street, Chang an District, Shijiazhuang, 050000, Hebei Province, China.
| | - Zexin Xie
- Department of Cardiothoracic Surgery, Shijiazhuang Third Hospital, No.15 Tiyu South Street, Chang an District, Shijiazhuang, 050000, Hebei Province, China
| | - Yang Yang
- Department of Cardiothoracic Surgery, Shijiazhuang Third Hospital, No.15 Tiyu South Street, Chang an District, Shijiazhuang, 050000, Hebei Province, China
| | - Lei Feng
- Department of Cardiothoracic Surgery, Shijiazhuang Third Hospital, No.15 Tiyu South Street, Chang an District, Shijiazhuang, 050000, Hebei Province, China
| | - Chunjuan Hou
- Department of Cardiothoracic Surgery, Shijiazhuang Third Hospital, No.15 Tiyu South Street, Chang an District, Shijiazhuang, 050000, Hebei Province, China
| | - Menghui Chen
- Department of Cardiothoracic Surgery, Shijiazhuang Third Hospital, No.15 Tiyu South Street, Chang an District, Shijiazhuang, 050000, Hebei Province, China
| | - Zheng Liang
- Department of Cardiothoracic Surgery, Shijiazhuang Third Hospital, No.15 Tiyu South Street, Chang an District, Shijiazhuang, 050000, Hebei Province, China
| | - Guoliang Zhang
- Department of Cardiothoracic Surgery, Shijiazhuang Third Hospital, No.15 Tiyu South Street, Chang an District, Shijiazhuang, 050000, Hebei Province, China
| | - Huiqing Lu
- Department of Cardiothoracic Surgery, Shijiazhuang Third Hospital, No.15 Tiyu South Street, Chang an District, Shijiazhuang, 050000, Hebei Province, China
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Feng L, Xie Z, Zhou X, Hou C, Liang Z, Lu H, Liu L, Zhang D. Diagnostic value of D-dimer for lower extremity deep venous thrombosis caused by rib fracture: a retrospective study. J Orthop Surg Res 2023; 18:515. [PMID: 37475021 PMCID: PMC10357766 DOI: 10.1186/s13018-023-03997-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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 07/10/2023] [Indexed: 07/22/2023] Open
Abstract
OBJECTIVE This study aimed to investigate the role of D-dimer in the diagnosis of lower extremity deep venous thrombosis (DVT) in patients with rib fractures. METHOD Retrospective analysis was conducted on the clinical data of 499 patients with rib fractures who were admitted to the Third Hospital of Shijiazhuang between October 2020 and September 2021. These patients were divided into the DVT and the non-DVT groups. D-dimer levels were compared between the two groups at 24, 48, and 72 h after the injury. Receiver operating characteristic curves were utilized to evaluate the diagnostic efficacy of dynamically monitoring changes in D-dimer for DVT. RESULTS The D-dimer levels in the DVT group were significantly higher than those in the non-DVT group at 24, 48, and 72 h after the injury. The area under the curve values for predicting DVT based on D-dimer level at 24, 48, and 72 h after injury in patients with rib fractures were 0.788, 0.605, and 0.568, respectively. CONCLUSION Detecting D-dimer levels 24 h after the injury can enhance diagnostic efficacy and sensitivity for DVT, thereby reducing the rate of missed diagnoses, which is of great clinical value.
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Affiliation(s)
- Lei Feng
- Department of Cardiothoracic Surgery, The Third Hospital of Shijiazhuang, Shijiazhuang, 050011, Hebei, China
| | - Zexin Xie
- Department of Cardiothoracic Surgery, The Third Hospital of Shijiazhuang, Shijiazhuang, 050011, Hebei, China
| | - Xuetao Zhou
- Department of Cardiothoracic Surgery, The Third Hospital of Shijiazhuang, Shijiazhuang, 050011, Hebei, China
| | - Chunjuan Hou
- Department of Cardiothoracic Surgery, The Third Hospital of Shijiazhuang, Shijiazhuang, 050011, Hebei, China
| | - Zheng Liang
- Department of Cardiothoracic Surgery, The Third Hospital of Shijiazhuang, Shijiazhuang, 050011, Hebei, China
| | - Huiqing Lu
- Department of Cardiothoracic Surgery, The Third Hospital of Shijiazhuang, Shijiazhuang, 050011, Hebei, China
| | - Lili Liu
- Department of Cardiology, The Third Hospital of Shijiazhuang, Shijiazhuang, China
| | - Dongsheng Zhang
- Department of Cardiothoracic Surgery, The Third Hospital of Shijiazhuang, Shijiazhuang, 050011, Hebei, China.
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Zhang D, Zhao Y, Wang S, Wang X, Sun Y. A Prognostic Model of Angiogenesis and Neutrophil Extracellular Traps Related Genes Manipulating Tumor Microenvironment in Colon Cancer. J Cancer 2023; 14:2109-2127. [PMID: 37497410 PMCID: PMC10367930 DOI: 10.7150/jca.85778] [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: 05/01/2023] [Accepted: 06/26/2023] [Indexed: 07/28/2023] Open
Abstract
Colon adenocarcinoma (COAD) is one of the most common carcinomas worldwide. The main causes of cancer-related mortality of COAD are metastases. The fundamental processes for how angiogenesis and neutrophil extracellular traps (NETs) contributing to tumor progression and metastasis are still uncertain. In our study, The Cancer Genome Atlas (TCGA)-COAD dataset (train set) and GSE17536 (test set) were analyzed. Angiogenesis potential index (API) and NETs potential index (NPI) based on angiogenesis and NETs-related genes were respectively built using bioinformatic methods and machine learning algorithms. Subjects were split into groups with low API/NPI or high API/NPI. Survival analysis showed the high API and high NPI patients with the worst survival compared with the others. Between the high API/NPI group and the other groups, differentially expressed genes (DEGs) were found. A four-gene signature (TIMP1, FSL3, CALB2, and FABP4) was included in a risk model based on least absolute shrinkage and selection operator (LASSO) analysis. Additionally, the model displayed a significant association with many immune microenvironment characteristics. Finally, we verified the clinical significance of CALB2 expression and its role to promote the invasion and migration of colon cancer cells in vitro.
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Affiliation(s)
- Dongsheng Zhang
- Department of Colorectal Surgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- Colorectal Institute of Nanjing Medical University, Nanjing, China
- The First School of Clinical Medicine, Nanjing Medical University, Nanjing, China
| | - Yan Zhao
- The First School of Clinical Medicine, Nanjing Medical University, Nanjing, China
| | - Shirui Wang
- Department of Colorectal Surgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- Colorectal Institute of Nanjing Medical University, Nanjing, China
- The First School of Clinical Medicine, Nanjing Medical University, Nanjing, China
| | - Xiaowei Wang
- Department of Colorectal Surgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- Colorectal Institute of Nanjing Medical University, Nanjing, China
| | - Yueming Sun
- Department of Colorectal Surgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- Colorectal Institute of Nanjing Medical University, Nanjing, China
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Zhou Y, Han Y, Xie W, Li M, Wang Z, Zhang D. Diversity, phylogeny, and bathymetric zonation of Sirsoe (Annelida: Hesionidae) from colonization experiments in the South China Sea, with the description of three new species. Ecol Evol 2023; 13:e10256. [PMID: 37470027 PMCID: PMC10352092 DOI: 10.1002/ece3.10256] [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: 06/01/2023] [Revised: 06/15/2023] [Accepted: 06/19/2023] [Indexed: 07/21/2023] Open
Abstract
The South China Sea (SCS) basin is hypothesized to host distinct and bathymetrically differentiated fauna due to its semi-enclosed basin and three-layer circulation system. To test this hypothesis, three cow falls are artificially deployed at separate depths (655, 1604, and 3402 m) on Zhongnan seamount in the middle SCS, and the associated worms, Sirsoe spp. are selected as targets to explore their diversity, phylogeny, and zonation pattern. Analyses of collected specimens reveal three new Sirsoe species, which were then nominally described and named as S. polita sp. nov. (655 m), S. nanhaiensis sp. nov. (1604 and 3402 m), and S. feitiana sp. nov. (3402 m), and one known species (S. balaenophila lineage II). Metabarcoding analyses on cow-fall sediments reveal seven additional Operated Taxonomic Units (OTUs) assigned to Sirsoe, increasing the Sirsoe diversity to 10 species/OTUs in the middle SCS. Their distribution along depth shows increasing diversity toward the deeper sites. Phylogenetic inferences recover S. polita closely related to S. alucia from the Southwest Atlantic, forming a lineage deeply divergent from others. The nine deep-water species/OTUs are scattered in three distinct lineages showing closer phylogenetic relationships between 1604- and 3402-m counterparts. The lineage formed by S. naihaiensis and S. feitiana is distinct from other non-SCS congeners both morphologically and genetically. These results suggest multiple independent invasions of Sirsoe to the SCS, a new lineage potentially endemic to the SCS, and a strong zonation pattern related to depth, especially between the shallow (655 m) and the deep (1604 and 3402 m) sites. The semi-enclosed feature combined with the physical structure of the SCS may contribute to such a pattern. This work is registered in ZooBank under: urn:lsid:zoobank.org:pub:317771C8-42D717-4765-A168-B3BE99B09FBF.
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Affiliation(s)
- Yadong Zhou
- Key Laboratory of Marine Ecosystem DynamicsSecond Institute of Oceanography, Ministry of Natural ResourcesHangzhouChina
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)ZhuhaiChina
| | - Yuru Han
- Key Laboratory of Marine Ecosystem DynamicsSecond Institute of Oceanography, Ministry of Natural ResourcesHangzhouChina
| | - Wei Xie
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)ZhuhaiChina
- School of Marine SciencesSun Yat‐sen UniversityZhuhaiChina
| | - Mingting Li
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)ZhuhaiChina
- School of Marine SciencesSun Yat‐sen UniversityZhuhaiChina
| | - Zhi Wang
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth SciencesXiamen UniversityXiamenChina
| | - Dongsheng Zhang
- Key Laboratory of Marine Ecosystem DynamicsSecond Institute of Oceanography, Ministry of Natural ResourcesHangzhouChina
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)ZhuhaiChina
- School of OceanographyShanghai Jiao Tong UniversityShanghaiChina
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Li W, Yang Y, Liu S, Zhang D, Ren X, Tang M, Zhang W, Chen X, Huang C, Yu B. Paxbp1 is indispensable for the survival of CD4 and CD8 double-positive thymocytes. Front Immunol 2023; 14:1183367. [PMID: 37404821 PMCID: PMC10315898 DOI: 10.3389/fimmu.2023.1183367] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 06/05/2023] [Indexed: 07/06/2023] Open
Abstract
The lifespan of double-positive (DP) thymocytes is critical for intrathymic development and shaping the peripheral T cell repertoire. However, the molecular mechanisms that control DP thymocyte survival remain poorly understood. Paxbp1 is a conserved nuclear protein that has been reported to play important roles in cell growth and development. Its high expression in T cells suggests a possible role in T cell development. Here, we observed that deletion of Paxbp1 resulted in thymic atrophy in mice lacking Paxbp1 in the early stages of T cell development. Conditional loss of Paxbp1 resulted in fewer CD4+CD8+ DP T cells, CD4 and CD8 single positive (SP) T cells in the thymus, and fewer T cells in the periphery. Meanwhile, Paxbp1 deficiency had limited effects on the CD4-CD8- double negative (DN) or immature single-positive (ISP) cell populations. Instead, we observed a significant increase in the susceptibility of Paxbp1-deficient DP thymocytes to apoptosis. Consistent with this, RNA-Seq analysis revealed a significant enrichment of the apoptotic pathway within differentially expressed genes in Paxbp1-deficient DP cells compared to control DP cells. Together, our results suggest a new function for Paxbp1, which is an important mediator of DP thymocyte survival and critical for proper thymic development.
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Affiliation(s)
- Wenting Li
- Department of Dermatology, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- Shenzhen Key Laboratory for Translational Medicine of Dermatology, Shenzhen Peking University - The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong, China
| | - Yang Yang
- Shenzhen Key Laboratory for Translational Medicine of Dermatology, Biomedical Research Institute, Shenzhen Peking University - The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong, China
| | - Shenglin Liu
- Key Laboratory of Research and Utilization of Ethnomedicinal Plant Resources of Hunan Province, College of Biological and Food Engineering, Huaihua University, Huaihua, Hunan, China
| | - Dongsheng Zhang
- Shenzhen Key Laboratory for Translational Medicine of Dermatology, Biomedical Research Institute, Shenzhen Peking University - The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong, China
| | - Xuanyao Ren
- Shenzhen Key Laboratory for Translational Medicine of Dermatology, Biomedical Research Institute, Shenzhen Peking University - The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong, China
| | - Mindan Tang
- Shenzhen Key Laboratory for Translational Medicine of Dermatology, Biomedical Research Institute, Shenzhen Peking University - The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong, China
| | - Wei Zhang
- Shenzhen Key Laboratory for Translational Medicine of Dermatology, Biomedical Research Institute, Shenzhen Peking University - The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong, China
- Shenzhen Bay Laboratory, Shenzhen, Guangdong, China
| | - Xiaofan Chen
- Shenzhen Key Laboratory for Translational Medicine of Dermatology, Biomedical Research Institute, Shenzhen Peking University - The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong, China
| | - Cong Huang
- Department of Dermatology, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- Shenzhen Key Laboratory for Translational Medicine of Dermatology, Shenzhen Peking University - The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong, China
| | - Bo Yu
- Department of Dermatology, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- Shenzhen Key Laboratory for Translational Medicine of Dermatology, Shenzhen Peking University - The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong, China
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Zhang D, Zhang S, Yang Q. Effect of Replacing Fine Aggregate with Fly Ash on the Performance of Mortar. Materials (Basel) 2023; 16:4292. [PMID: 37374474 DOI: 10.3390/ma16124292] [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: 04/19/2023] [Revised: 06/01/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023]
Abstract
Natural river sand resources are facing depletion, and large-scale mining pollutes the environment and harms humans. To utilize fly ash fully, this study used low-grade fly ash as a substitute for natural river sand in mortar. This has great potential to alleviate the shortage of natural river sand resources, reduce pollution, and improve the utilization of solid waste resources. Six types of green mortars were prepared by replacing different amounts of river sand (0, 20, 40, 60, 80, and 100%) with fly ash and other volumes. Their compressive strength, flexural strength, ultrasonic wave velocity, drying shrinkage, and high-temperature resistance were also investigated. Research has shown that fly ash can be used as a fine aggregate in the preparation of building mortar, thereby ensuring that green-building mortar has sufficient mechanical properties and better durability. The replacement rate for optimal strength and high-temperature performance was determined to be 80%.
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Affiliation(s)
- Dongsheng Zhang
- School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China
- Research Group RecyCon, Department of Civil Engineering, KU Leuven, Campus Bruges, 8200 Bruges, Belgium
| | - Shuxiang Zhang
- School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China
| | - Qiuning Yang
- School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China
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35
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Yang J, Liu G, Tian H, Liu X, Hao X, Zong Y, Zhang D, Shi X, Wang A, Li P, Lam SK. Trade-offs between wheat soil N 2O emissions and C sequestration under straw return, elevated CO 2 concentration, and elevated temperature. Sci Total Environ 2023:164508. [PMID: 37247731 DOI: 10.1016/j.scitotenv.2023.164508] [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: 03/14/2023] [Revised: 05/23/2023] [Accepted: 05/25/2023] [Indexed: 05/31/2023]
Abstract
The feedback between nitrous oxide (N2O) emissions, straw management and future climate scenarios is not well understood, especially in wheat ecosystems. In this study, the changes in N2O emissions, soil properties, enzymes, and functional genes involved in N cycling were measured with straw return (incorporation and mulching) and straw removal, under elevated [CO2] (+200 μmol mol-1 above ambient [CO2]), elevated temperature (+2 °C above ambient temperature), and their combination. The net global warming potential (NGWP) and greenhouse gas intensity (GHGI) were evaluated in combination with greenhouse gas emissions, yield, and soil organic carbon (C) sequestration. Compared with the ambient condition, elevated [CO2] and elevated temperature suppressed N2O emission by 41-46 %. Straw return significantly increased N2O emission by 31-109 % through increasing soil C and N substrates and denitrifying genes abundance, compared with straw removal. In addition, the impact of straw return on N2O emission was greater than that of elevated [CO2] or temperature. Straw return generally reduced NGWP by 166.2-3353.3 kg CO2-eq ha-1 and GHGI by 0.4-1.1 kg CO2-eq kg-1 through increasing soil organic C sequestration by 0.1-1.1 t C ha-1 and grain yield by 280.8 kg ha-1-1595.4 kg ha-1. Straw return would stimulate N2O emissions from this wheat cropping system under future warmer, elevated [CO2] climates, but simultaneously increase grain yield and soil organic C sequestration to a greater extent. Overall, straw return is beneficial to climate change mitigation; in particular, straw incorporation would be more effective than straw mulching.
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Affiliation(s)
- Jing Yang
- College of Agriculture, Shanxi Agricultural University, Taigu 030801, China; Maize Research Institute, Shanxi Agricultural University, Xinzhou 034000, China
| | - Guojun Liu
- College of Agriculture, Shanxi Agricultural University, Taigu 030801, China
| | - Haiyan Tian
- College of Agriculture, Shanxi Agricultural University, Taigu 030801, China
| | - Xin Liu
- College of Agriculture, Shanxi Agricultural University, Taigu 030801, China
| | - Xingyu Hao
- College of Agriculture, Shanxi Agricultural University, Taigu 030801, China
| | - Yuzheng Zong
- College of Agriculture, Shanxi Agricultural University, Taigu 030801, China
| | - Dongsheng Zhang
- College of Agriculture, Shanxi Agricultural University, Taigu 030801, China
| | - Xinrui Shi
- College of Agriculture, Shanxi Agricultural University, Taigu 030801, China
| | - Aiping Wang
- College of Agriculture, Shanxi Agricultural University, Taigu 030801, China
| | - Ping Li
- College of Agriculture, Shanxi Agricultural University, Taigu 030801, China.
| | - Shu Kee Lam
- School of Agriculture, Food and Ecosystem Sciences, Faculty of Science, The University of Melbourne, Victoria 3010, Australia
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Zhang D, Liu W, Li Y, Sun D, Wu Y, Luo S, Chen S, Tao Y, Zhang B. In situ observation of crystal rotation in Ni-based superalloy during additive manufacturing process. Nat Commun 2023; 14:2961. [PMID: 37221206 DOI: 10.1038/s41467-023-38727-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 05/12/2023] [Indexed: 05/25/2023] Open
Abstract
Understanding the dynamic process of epitaxial microstructure forming in laser additive manufacturing is very important for achieving products with a single crystalline texture. Here, we perform in situ, real-time synchrotron Laue diffraction experiments to capture the microstructural evolution of nickel-based single-crystal superalloys during the rapid laser remelting process. In situ synchrotron radiation Laue diffraction characterises the crystal rotation behaviour and stray grain formation process. With a complementary thermomechanical coupled finite element simulation and molecular dynamics simulation, we identify that the crystal rotation is governed by the localised heating/cooling heterogeneity-induced deformation gradient and recognise that the sub-grain rotation caused by rapid dislocation movement could be the origin of granular stray grains at the bottom of the melt pool.
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Affiliation(s)
- Dongsheng Zhang
- Institute of High Energy Physics, Chinese Academy of Sciences, 19B Yuquan Road, Beijing, 100049, P R China
- University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100049, P R China
| | - Wei Liu
- 3D Printing Research & Engineering Technology Center, AECC Beijing Institute of Aeronautical Materials, Beijing, 100095, P R China
| | - Yuxiao Li
- The Peac Institute of Multiscale Sciences, Chengdu, Sichuan, 610207, P R China
| | - Darui Sun
- Institute of High Energy Physics, Chinese Academy of Sciences, 19B Yuquan Road, Beijing, 100049, P R China
| | - Yu Wu
- 3D Printing Research & Engineering Technology Center, AECC Beijing Institute of Aeronautical Materials, Beijing, 100095, P R China
| | - Shengnian Luo
- The Peac Institute of Multiscale Sciences, Chengdu, Sichuan, 610207, P R China
| | - Sen Chen
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang, Sichuan, 621900, China.
| | - Ye Tao
- Institute of High Energy Physics, Chinese Academy of Sciences, 19B Yuquan Road, Beijing, 100049, P R China.
| | - Bingbing Zhang
- Institute of High Energy Physics, Chinese Academy of Sciences, 19B Yuquan Road, Beijing, 100049, P R China.
- University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100049, P R China.
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37
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Zhang D, Teng KX, Zhao L, Niu LY, Yang QZ. Ultra-Small Nano-Assemblies as Tumor-Targeted and Renal Clearable Theranostic Agent for Photodynamic Therapy. Adv Mater 2023; 35:e2209789. [PMID: 36861334 DOI: 10.1002/adma.202209789] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 02/16/2023] [Indexed: 05/12/2023]
Abstract
It is a challenge to design photosensitizers to balance between the tumor-targeting enrichment for precise treatment and efficient clearance within a reasonable timescale for reducing side effects. Herein, an ultra-small nano-photosensitizer 1a with excellent tumor-specific accumulation and renal clearance is reported. It is formed from the self-assembly of compound 1 bearing three triethylene glycol (TEG) arms and two pyridinium groups in water. The positively charged surface with neutral TEG coating enables 1a to efficiently target the tumor, with the signal-to-background ratio reaching as high as 11.5 after tail intravenous injection. The ultra-small size of 1a with an average diameter of 5.6 nm allows its fast clearance through kidney. Self-assembly also endows 1a with an 18.2-fold enhancement of reactive oxygygen species generation rate compared to compound 1 in organic solution. Nano-PS 1a manifests an excellent photodynamic therapy efficacy on tumor-bearing mouse models. This work provides a promising design strategy of photosensitizers with renal clearable and tumor-targeting ability.
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Affiliation(s)
- Dongsheng Zhang
- Key Laboratory of Radiopharmaceuticals Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
| | - Kun-Xu Teng
- Key Laboratory of Radiopharmaceuticals Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
| | - Luyang Zhao
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Li-Ya Niu
- Key Laboratory of Radiopharmaceuticals Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
| | - Qing-Zheng Yang
- Key Laboratory of Radiopharmaceuticals Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
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38
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Zhang D, Su R. Heterogeneous Photocatalytic Hydrogenative Reactions Using Liquid Hydrogen Donors: Mechanisms, Catalysts Design, and Applications. Chemistry 2023:e202300882. [PMID: 37069325 DOI: 10.1002/chem.202300882] [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: 03/20/2023] [Revised: 04/17/2023] [Accepted: 04/17/2023] [Indexed: 04/19/2023]
Abstract
Heterogeneous photocatalysis is a promising approach for a wide range of hydrogenative reactions owing to the mild reaction conditions and the possibility of employing liquid hydrogen donors. Currently, the major interest is focused on the development of high performance photocatalyst materials and the expansion of reaction scope. An overview from a perspective of hydrogen donor and thus the related mechanistic understanding of the light-induced hydrogenative reactions is rare. Here, we have categorized the photocatalytic hydrogenative reactions by the type of employed liquid hydrogen donors (hydrocarbons and water), discussed the basic criteria of hydrogen abstraction from these donors, and elaborated the design strategy of the photocatalyst materials.
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Affiliation(s)
- Dongsheng Zhang
- Soochow University, Soochow Institute for Energy and Materials InnovationS (SIEMIS), CHINA
| | - Ren Su
- Soochow University, Dept. Energy, Moye St. 688, 215006, Suzhou, CHINA
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39
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Zhang Y, Bi K, Pan J, Xi X, Zhang D, Miao S, Cai M. Study on Hydro-Mechanical Coupling Failure and Permeability Enhancement Mechanisms for Sandstone with T-Shaped Fractures. Materials (Basel) 2023; 16:3118. [PMID: 37109954 PMCID: PMC10143926 DOI: 10.3390/ma16083118] [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: 02/15/2023] [Revised: 03/28/2023] [Accepted: 04/11/2023] [Indexed: 06/19/2023]
Abstract
The rise in the connectivity of the fractures is a key task in oil/gas and geothermal exploitation systems. Natural fractures widely exist in underground reservoir sandstone, while the mechanical behavior of rock with fractures subjected to hydro-mechanical coupling loads is far from clear. This paper employed comprehensive experiments and numerical simulations to investigate the failure mechanism and permeability law for sandstone specimens with T-shaped faces subjected to hydro-mechanical coupling loads. The effects of crack closure stress, crack initiation stress, strength, and axial strain stiffness of the specimens under different fracture inclination angles are discussed, and the evolution processes of permeability are obtained. The results show that secondary fractures are created around the pre-existing T-shaped fractures through tensile, shear, or mixed modes. The fracture network causes an increase in the permeability of the specimen. T-shaped fractures have a more significant effect on the strength of the specimens than water. The peak strengths of T-shaped specimens decreased by 34.89%, 33.79%, 46.09%, 39.32%, 47.23%, 42.76%, and 36.02%, respectively, compared with intact specimen without water pressure. With the increase in deviatoric stress, the permeability of T-shaped sandstone specimens decreases first, then increases, reaching its maximum value when macroscopic fractures are formed, after which the stress suddenly decreases. When the prefabricated T-shaped fracture angle is 75°, the corresponding permeability of the sample at failure is maximum, with a value of 15.84 × 10-16 m2. The failure process of the rock is reproduced through numerical simulations, in which the influence of damage and macroscopic fractures on permeability is discussed.
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Affiliation(s)
- Ying Zhang
- School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China
- Shunde Innovation School, University of Science and Technology Beijing, Foshan 528399, China
| | - Kun Bi
- School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Jiliang Pan
- School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Xun Xi
- School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Dongsheng Zhang
- Shangyuquan Coal Mine, Shanxi Luneng Hequ Electric Coal Development Co., Ltd., Xinzhou 034000, China
| | - Shengjun Miao
- School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Meifeng Cai
- School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China
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40
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Gong Z, Duan Y, Liu D, Zong Y, Zhang D, Shi X, Hao X, Li P. Physiological and transcriptome analysis of response of soybean (Glycine max) to cadmium stress under elevated CO 2 concentration. J Hazard Mater 2023; 448:130950. [PMID: 36860078 DOI: 10.1016/j.jhazmat.2023.130950] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 01/30/2023] [Accepted: 02/04/2023] [Indexed: 06/18/2023]
Abstract
The continuous accumulation of Cd has long-lasting detrimental effects on plant growth and food safety. Although elevated CO2 concentration (EC) has been reported to reduce Cd accumulation and toxicity in plants, evidence on the functions of elevated CO2 concentration and its mechanisms in the possible alleviation of Cd toxicity in soybean are limited. Here, we used physiological and biochemical methods together with transcriptomic comparison to explore the effects of EC on Cd-stressed soybean. Under Cd stress, EC significantly increased the weight of roots and leaves, promoted the accumulations of proline, soluble sugars, and flavonoid. In addition, the enhancement of GSH activity and GST gene expressions promoted Cd detoxification. These defensive mechanisms reduced the contents of Cd2+, MDA, and H2O2 in soybean leaves. The up-regulation of genes encoding phytochelatin synthase, MTPs, NRAMP, and vacuoles protein storage might play vital roles in the transportation and compartmentalization process of Cd. The MAPK and some transcription factors such as bHLH, AP2/ERF, and WRKY showed changed expressions and might be engaged in mediation of stress response. These findings provide a boarder view on the regulatory mechanism of EC on Cd stress and provide numerous potential target genes for future engineering of Cd-tolerant cultivars in soybean breeding programs under climate changes scenarios.
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Affiliation(s)
- Zehua Gong
- College of Agriculture, Shanxi Agricultural University, 030801 Taigu, China; State Key Laboratory of Sustainable Dryland Agriculture, Shanxi Agricultural University, Taiyuan 030031, China
| | - Yuqian Duan
- College of Agriculture, Shanxi Agricultural University, 030801 Taigu, China
| | - Danmei Liu
- School of Life Science, Shanxi University, 030036, Taiyuan, China
| | - Yuzheng Zong
- College of Agriculture, Shanxi Agricultural University, 030801 Taigu, China
| | - Dongsheng Zhang
- College of Agriculture, Shanxi Agricultural University, 030801 Taigu, China
| | - Xinrui Shi
- College of Agriculture, Shanxi Agricultural University, 030801 Taigu, China
| | - Xingyu Hao
- College of Agriculture, Shanxi Agricultural University, 030801 Taigu, China; State Key Laboratory of Sustainable Dryland Agriculture, Shanxi Agricultural University, Taiyuan 030031, China.
| | - Ping Li
- College of Agriculture, Shanxi Agricultural University, 030801 Taigu, China; State Key Laboratory of Sustainable Dryland Agriculture, Shanxi Agricultural University, Taiyuan 030031, China.
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41
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Ye J, Zhang D, Salli S, Li Y, Han F, Mai Y, Rosei F, Li Y, Yang Y, Besenbacher F, Niemantsverdriet H, Richards E, Su R. Heterogeneous Photocatalytic Recycling of FeX2/FeX3 for Efficient Halogenation of C-H Bonds Using NaX. Angew Chem Int Ed Engl 2023; 62:e202302994. [PMID: 37013857 DOI: 10.1002/anie.202302994] [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: 02/28/2023] [Revised: 03/31/2023] [Accepted: 04/03/2023] [Indexed: 04/05/2023]
Abstract
Environmental-friendly halogenation of C-H bonds using abundant, non-toxic halogen salts is in high demand in various chemical industries, yet the efficiency and selectivity of laboratory available protocols are far behind the conventional photolytic halogenation process which uses hazardous halogen sources. Here we report an FeX2 (X = Br, Cl) coupled semiconductor system for efficient, selective, and continuous photocatalytic halogenation using NaX as halogen source under mild conditions. Herein, FeX2 catalyzes the reduction of molecular oxygen and the consumption of generated oxygen radicals, thus boosting the generation of halogen radicals and elemental halogen for direct halogenation and indirect halogenation via the formation of FeX3. Recycling of FeX2 and FeX3 during the photocatalytic process enables the halogenation of a wide range of hydrocarbons in a continuous flow, rendering it a promising method for applications.
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Affiliation(s)
- Jiani Ye
- Soochow University, College of Energy, CHINA
| | | | - Sofia Salli
- Cardiff University, School of Chemistry, UNITED KINGDOM
| | - Yajiao Li
- Soochow University, College of Energy, Suzhou, CHINA
| | - Feiyu Han
- Soochow University, College of Energy, CHINA
| | | | - Federico Rosei
- Centre National de la Recherche Scientifique Centre de Documentation: Centre National de la Recherche Scientifique, Center for Energy, Materials and Telecommunications, Institut National de la Recherche Scientifique, CANADA
| | - Yongwang Li
- Synfuels China Technology Co Ltd, R&D, CHINA
| | - Yong Yang
- Synfuels China Technology Co Ltd, R&D, Leyuan South Street II, No.1, 101407, Beijing, CHINA
| | | | | | - Emma Richards
- Cardiff University, School of Chemistry, UNITED KINGDOM
| | - Ren Su
- Soochow University, Dept. Energy, Moye St. 688, 215006, Suzhou, CHINA
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42
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Ye J, Zhang D, Salli S, Li Y, Han F, Mai Y, Rosei F, Li Y, Yang Y, Besenbacher F, Niemantsverdriet H, Richards E, Su R. Heterogeneous Photocatalytic Recycling of FeX2/FeX3 for Efficient Halogenation of C‐H Bonds Using NaX. Angew Chem Int Ed Engl 2023. [DOI: 10.1002/ange.202302994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Affiliation(s)
- Jiani Ye
- Soochow University College of Energy CHINA
| | | | - Sofia Salli
- Cardiff University School of Chemistry UNITED KINGDOM
| | - Yajiao Li
- Soochow University College of Energy Suzhou CHINA
| | - Feiyu Han
- Soochow University College of Energy CHINA
| | | | - Federico Rosei
- Centre National de la Recherche Scientifique Centre de Documentation: Centre National de la Recherche Scientifique Center for Energy, Materials and Telecommunications, Institut National de la Recherche Scientifique CANADA
| | | | - Yong Yang
- Synfuels China Technology Co Ltd R&D Leyuan South Street II, No.1 101407 Beijing CHINA
| | | | | | - Emma Richards
- Cardiff University School of Chemistry UNITED KINGDOM
| | - Ren Su
- Soochow University Dept. Energy Moye St. 688 215006 Suzhou CHINA
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Fan X, Ma R, Yue C, Liu J, Yue B, Yang W, Li Y, Gu J, Ayala JE, Bunker DE, Yan X, Qi D, Su X, Li L, Zhang D, Zhang H, Yang Z, Hou R, Liu S. A snapshot of climate drivers and temporal variation of Ixodes ovatus abundance from a giant panda living in the wild. Int J Parasitol Parasites Wildl 2023; 20:162-169. [PMID: 36890989 PMCID: PMC9986245 DOI: 10.1016/j.ijppaw.2023.02.005] [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: 11/28/2022] [Revised: 02/21/2023] [Accepted: 02/21/2023] [Indexed: 03/03/2023]
Abstract
Ticks and tick-borne diseases have negative impacts on the health of wild animals including endangered and vulnerable species. The giant panda (Ailuropoda melanoleuca), a vulnerable and iconic flagship species, is threatened by tick infestation as well. Not only can ticks cause anemia and immunosuppression in the giant panda, but also bacterial and viral diseases. However, previous studies regarding tick infestation on giant pandas were limited in scope as case reports from sick or dead animals. In this study, an investigation focusing on the tick infestation of a reintroduced giant panda at the Daxiangling Reintroduction Base in Sichuan, China was conducted. Ticks were routinely collected and identified from the ears of the giant panda from March to September in 2021. A linear model was used to test the correlation between tick abundance and climate factors. All ticks were identified as Ixodes ovatus. Tick abundance was significantly different among months. Results from the linear model showed temperature positively correlated to tick abundance, while air pressure had a negative correlation with tick abundance. To the best of our knowledge, this study is the first reported investigation of tick species and abundance on a healthy giant panda living in the natural environment, and provides important information for the conservation of giant pandas and other species sharing the same habitat.
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Affiliation(s)
- Xueyang Fan
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu Research Base of Giant Panda Breeding, 1375 Panda Road, Chenghua District, Sichuan Province, 610081, China
| | - Rui Ma
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu Research Base of Giant Panda Breeding, 1375 Panda Road, Chenghua District, Sichuan Province, 610081, China
| | - Changjuan Yue
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu Research Base of Giant Panda Breeding, 1375 Panda Road, Chenghua District, Sichuan Province, 610081, China
| | - Jiabin Liu
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu Research Base of Giant Panda Breeding, 1375 Panda Road, Chenghua District, Sichuan Province, 610081, China
| | - Bisong Yue
- Sichuan Key Laboratory of Conservation Biology on Endangered Wildlife, College of Life Sciences, Sichuan University, Chengdu, 610064, Sichuan, China
| | - Wanjing Yang
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu Research Base of Giant Panda Breeding, 1375 Panda Road, Chenghua District, Sichuan Province, 610081, China
| | - Yunli Li
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu Research Base of Giant Panda Breeding, 1375 Panda Road, Chenghua District, Sichuan Province, 610081, China
| | - Jiang Gu
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu Research Base of Giant Panda Breeding, 1375 Panda Road, Chenghua District, Sichuan Province, 610081, China
| | - James E Ayala
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu Research Base of Giant Panda Breeding, 1375 Panda Road, Chenghua District, Sichuan Province, 610081, China
| | - Daniel E Bunker
- Department of Biological Sciences, New Jersey Institute of Technology, Newark, NJ, 07102, USA
| | - Xia Yan
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu Research Base of Giant Panda Breeding, 1375 Panda Road, Chenghua District, Sichuan Province, 610081, China
| | - Dunwu Qi
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu Research Base of Giant Panda Breeding, 1375 Panda Road, Chenghua District, Sichuan Province, 610081, China
| | - Xiaoyan Su
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu Research Base of Giant Panda Breeding, 1375 Panda Road, Chenghua District, Sichuan Province, 610081, China
| | - Lin Li
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu Research Base of Giant Panda Breeding, 1375 Panda Road, Chenghua District, Sichuan Province, 610081, China
| | - Dongsheng Zhang
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu Research Base of Giant Panda Breeding, 1375 Panda Road, Chenghua District, Sichuan Province, 610081, China
| | - Hongwen Zhang
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu Research Base of Giant Panda Breeding, 1375 Panda Road, Chenghua District, Sichuan Province, 610081, China
| | - Zhisong Yang
- Sichuan Academy of Giant Panda, Chengdu, 610081, China
| | - Rong Hou
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu Research Base of Giant Panda Breeding, 1375 Panda Road, Chenghua District, Sichuan Province, 610081, China
| | - Songrui Liu
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu Research Base of Giant Panda Breeding, 1375 Panda Road, Chenghua District, Sichuan Province, 610081, China
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Li M, Wang X, Yang E, Li Y, Geng Y, Chen Z, Huang S, Zhang D, Wu H. OTUB1 Catalytic-Independently Deubiquitinates TGFBI and Mediates the Angiogenesis in Infantile Hemangioma by Regulating Glycolysis. Arterioscler Thromb Vasc Biol 2023; 43:654-673. [PMID: 36994729 DOI: 10.1161/atvbaha.123.319177] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
BACKGROUND:
Infantile hemangioma (IH) arises as a result of dysregulation of both angiogenesis and vasculogenesis. The deubiquitylase OTUB1 (OTU domain, ubiquitin aldehyde binding 1) has been reported to play an essential role in multiple cancers; however, its function in the progression of IH and the underlying mechanisms regulating angiogenesis remain unclear.
METHODS:
Transwell assays, EdU assays, and tube formation assays were performed to investigate the biological behavior of IH in vitro. IH animal models were established to estimate the progression of IH in vivo. Mass spectrometric analysis were conducted to detect the downstream of OTUB1 and ubiquitination sites of transforming growth factor beta induced (TGFBI). Half-life assays and ubiquitination test were performed to investigate the interaction between TGFBI and OTUB1. Extracellular acidification rate assays were employed to estimate the glycolysis level in IH.
RESULTS:
The expression of OTUB1 was obviously increased in proliferating IH as compared to the involuting and involuted IH tissues. Through in vitro experiments, the knockdown of OTUB1 inhibited the proliferation, migration and tube formation of human hemangioma endothelial cells, while the overexpression of OTUB1 promoted the proliferation, migration and angiogenic abilities of human hemangioma endothelial cells. The knockdown of OTUB1 significantly suppressed IH progression in vivo. Furthermore, TGFBI was predicted as a functional downstream target of OTUB1 in IH by mass spectrometry. Mechanistically, OTUB1 interacted with and deubiquitylated TGFBI on the K22 and K25 residues, which was demonstrated to be independent of the catalytic activity of OTUB1. The inhibitory effects of OTUB1 knockdown on cell proliferation, migration and tube formation ability of human hemangioma endothelial cells were reversed by TGFBI overexpression. Further, we found that OTUB1 mediated glycolysis by regulating TGFBI in infantile hemangioma.
CONCLUSIONS:
OTUB1 deubiquitinates TGFBI in a catalytic-independent manner and promotes angiogenesis in infantile hemangiomas by regulating glycolysis. Targeting OTUB1 might be an effective therapeutic strategy for inhibiting IH progression and tumor.
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Affiliation(s)
- Mingyang Li
- Department of Stomatology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China (M.L., X.W., E.Y., Y.L., Y.G., Z.C., S.H., D.Z., H.W.)
- Department of Stomatology, Shandong Provincial Hospital, Shandong University, China (M.L., X.W., E.Y., Y.L., Y.G., Z.C., S.H., D.Z., H.W.)
| | - Xuan Wang
- Department of Stomatology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China (M.L., X.W., E.Y., Y.L., Y.G., Z.C., S.H., D.Z., H.W.)
- Department of Stomatology, Shandong Provincial Hospital, Shandong University, China (M.L., X.W., E.Y., Y.L., Y.G., Z.C., S.H., D.Z., H.W.)
| | - Enli Yang
- Department of Stomatology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China (M.L., X.W., E.Y., Y.L., Y.G., Z.C., S.H., D.Z., H.W.)
- Department of Stomatology, Shandong Provincial Hospital, Shandong University, China (M.L., X.W., E.Y., Y.L., Y.G., Z.C., S.H., D.Z., H.W.)
| | - Yiming Li
- Department of Stomatology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China (M.L., X.W., E.Y., Y.L., Y.G., Z.C., S.H., D.Z., H.W.)
- Department of Stomatology, Shandong Provincial Hospital, Shandong University, China (M.L., X.W., E.Y., Y.L., Y.G., Z.C., S.H., D.Z., H.W.)
| | - Yiming Geng
- Department of Stomatology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China (M.L., X.W., E.Y., Y.L., Y.G., Z.C., S.H., D.Z., H.W.)
- Department of Stomatology, Shandong Provincial Hospital, Shandong University, China (M.L., X.W., E.Y., Y.L., Y.G., Z.C., S.H., D.Z., H.W.)
| | - Zhanwei Chen
- Department of Stomatology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China (M.L., X.W., E.Y., Y.L., Y.G., Z.C., S.H., D.Z., H.W.)
- Department of Stomatology, Shandong Provincial Hospital, Shandong University, China (M.L., X.W., E.Y., Y.L., Y.G., Z.C., S.H., D.Z., H.W.)
| | - Shengyun Huang
- Department of Stomatology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China (M.L., X.W., E.Y., Y.L., Y.G., Z.C., S.H., D.Z., H.W.)
- Department of Stomatology, Shandong Provincial Hospital, Shandong University, China (M.L., X.W., E.Y., Y.L., Y.G., Z.C., S.H., D.Z., H.W.)
| | - Dongsheng Zhang
- Department of Stomatology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China (M.L., X.W., E.Y., Y.L., Y.G., Z.C., S.H., D.Z., H.W.)
- Department of Stomatology, Shandong Provincial Hospital, Shandong University, China (M.L., X.W., E.Y., Y.L., Y.G., Z.C., S.H., D.Z., H.W.)
| | - Haiwei Wu
- Department of Stomatology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China (M.L., X.W., E.Y., Y.L., Y.G., Z.C., S.H., D.Z., H.W.)
- Department of Stomatology, Shandong Provincial Hospital, Shandong University, China (M.L., X.W., E.Y., Y.L., Y.G., Z.C., S.H., D.Z., H.W.)
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45
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Li Y, Zhang D, Ye J, Mai Y, Wang C, Yang Y, Li Y, Besenbacher F, Niemantsverdriet H, Rosei F, Pan F, Su R. A Modular Tubular Flow System with Replaceable Photocatalyst Membranes for Scalable Coupling and Hydrogenation. Angew Chem Int Ed Engl 2023; 62:e202302979. [PMID: 36988035 DOI: 10.1002/anie.202302979] [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: 02/27/2023] [Revised: 03/25/2023] [Accepted: 03/27/2023] [Indexed: 03/30/2023]
Abstract
Heterogeneous photocatalysis is effective for the selective synthesis of value-added chemicals at lab-scale, yet falls short of requirements for mass production (low cost and user friendliness). Here we report the design and fabrication of a modular tubular flow system embedded with replaceable photocatalyst membranes for scalable photocatalytic C-C, C-N homocoupling and hydrogenation reactions, which can be operated in either circular and continuous flow mode with high performance. The photocatalyst membranes almost fully occupy the volume of the reactor, thus enabling optimal absorption of the incident light. Additionally, the porous structured photocatalyst membranes facilitate the mass transfer of the reactants to efficiently use the active sites, resulting in 0th-order reaction kinetics and a high space-time yield compared to the batch reaction system at practical application levels and prolonged reaction times.
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Affiliation(s)
- Yaojiao Li
- Soochow University, College of Energy, Suzhou, CHINA
| | | | - Jiani Ye
- Soochow University, College of Energy, CHINA
| | | | - Chao Wang
- Soochow University, College of Energy, CHINA
| | - Yong Yang
- Synfuels China Technology Co Ltd, Syncat@Beijing, Leyuan South Street II, No.1, 101407, Beijing, CHINA
| | - Yongwang Li
- Synfuels China Technology Co Ltd, Syncat@Beijing, CHINA
| | | | | | - Federico Rosei
- Centre National de la Recherche Scientifique Centre de Documentation: Centre National de la Recherche Scientifique, Center for Energy, Materials and Telecommunications, Institut National de la Recherche Scientifique, CANADA
| | - Feng Pan
- Beihang University, Research insitute for frontier science, CHINA
| | - Ren Su
- Soochow University, Dept. Energy, Moye St. 688, 215006, Suzhou, CHINA
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46
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Li Y, Zhang D, Ye J, Mai Y, Wang C, Yang Y, Li Y, Besenbacher F, Niemantsverdriet H, Rosei F, Pan F, Su R. A Modular Tubular Flow System with Replaceable Photocatalyst Membranes for Scalable Coupling and Hydrogenation. Angew Chem Int Ed Engl 2023. [DOI: 10.1002/ange.202302979] [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: 03/30/2023]
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47
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Qiao W, Fan X, Liu W, Khan FN, Zhang D, Han F, Yue H, Li Y, Dimitratos N, Albonetti S, Wen X, Yang Y, Besenbacher F, Li Y, Niemantsverdriet H, Lin H, Su R. Creating and Stabilizing an Oxidized Pd Surface under Reductive Conditions for Photocatalytic Hydrogenation of Aromatic Carbonyls. J Am Chem Soc 2023; 145:5353-5362. [PMID: 36853085 DOI: 10.1021/jacs.2c13196] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
Photocatalysis provides an eco-friendly route for the hydrogenation of aromatic carbonyls to O-free aromatics, which is an important refining process in the chemical industry that is generally carried out under high pressure of hydrogen at elevated temperatures. However, aromatic carbonyls are often only partially hydrogenated to alcohols, which readily desorbs and are hardly further deoxygenated under ambient conditions. Here, we show that by constructing an oxide surface over the Pd cocatalyst supported on graphitic carbon nitride, an alternative hydrogenation path of aromatic carbonyls becomes available via a step-wise acetalization and hydrogenation, thus allowing efficient and selective production of O-free aromatics. The PdO surface allows for optimum adsorption of reactants and intermediates and rapid abstraction of hydrogen from the alcohol donor, favoring fast acetalization of the carbonyls and their consecutive hydrogenation to O-free hydrocarbons. The photocatalytic hydrogenation of benzaldehyde into toluene shows a high selectivity of >90% and a quantum efficiency of ∼10.2% under 410 nm irradiation. By adding trace amounts of HCl to the reaction solution, the PdO surface remains stable and active for long-term operation at high concentrations, offering perspective for practical applications.
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Affiliation(s)
- Wei Qiao
- Soochow Institute for Energy and Materials Innovations (SIEMIS), Soochow University, Suzhou 215006, China.,SynCat@Beijing, Synfuels China Technology Co. Ltd., Leyuan South Street II, No. 1, Beijing 101407, China
| | - Xing Fan
- Research Center for Carbon-based Electronics and Key Laboratory for the Physics and Chemistry of Nanodevices, School of Electronics, Peking University, Beijing 100871, China
| | - Weifeng Liu
- Dipartimento di Chimica Industriale "Toso Montanari", University of Bologna, Bologna 40136, Italy
| | - Fahir Niaz Khan
- Soochow Institute for Energy and Materials Innovations (SIEMIS), Soochow University, Suzhou 215006, China
| | - Dongsheng Zhang
- Soochow Institute for Energy and Materials Innovations (SIEMIS), Soochow University, Suzhou 215006, China.,SynCat@Beijing, Synfuels China Technology Co. Ltd., Leyuan South Street II, No. 1, Beijing 101407, China
| | - Feiyu Han
- Soochow Institute for Energy and Materials Innovations (SIEMIS), Soochow University, Suzhou 215006, China.,SynCat@Beijing, Synfuels China Technology Co. Ltd., Leyuan South Street II, No. 1, Beijing 101407, China
| | - Huiyu Yue
- Soochow Institute for Energy and Materials Innovations (SIEMIS), Soochow University, Suzhou 215006, China
| | - Yajiao Li
- Soochow Institute for Energy and Materials Innovations (SIEMIS), Soochow University, Suzhou 215006, China
| | - Nikolaos Dimitratos
- Dipartimento di Chimica Industriale "Toso Montanari", University of Bologna, Bologna 40136, Italy.,Center for Chemical Catalysis-C3, Alma Mater Studiorum University of Bologna, Bologna 40136, Italy
| | - Stefania Albonetti
- Dipartimento di Chimica Industriale "Toso Montanari", University of Bologna, Bologna 40136, Italy.,Center for Chemical Catalysis-C3, Alma Mater Studiorum University of Bologna, Bologna 40136, Italy
| | - Xiaodong Wen
- SynCat@Beijing, Synfuels China Technology Co. Ltd., Leyuan South Street II, No. 1, Beijing 101407, China.,State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
| | - Yong Yang
- SynCat@Beijing, Synfuels China Technology Co. Ltd., Leyuan South Street II, No. 1, Beijing 101407, China.,State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
| | - Flemming Besenbacher
- The Interdisciplinary Nanoscience Center (iNANO), Aarhus University, DK-8000 Aarhus, Denmark
| | - Yongwang Li
- SynCat@Beijing, Synfuels China Technology Co. Ltd., Leyuan South Street II, No. 1, Beijing 101407, China.,State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
| | - Hans Niemantsverdriet
- SynCat@Beijing, Synfuels China Technology Co. Ltd., Leyuan South Street II, No. 1, Beijing 101407, China.,SynCat@DIFFER, Syngaschem BV, 6336 HH Eindhoven, The Netherlands
| | - Haiping Lin
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, China
| | - Ren Su
- Soochow Institute for Energy and Materials Innovations (SIEMIS), Soochow University, Suzhou 215006, China.,SynCat@Beijing, Synfuels China Technology Co. Ltd., Leyuan South Street II, No. 1, Beijing 101407, China
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48
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Yan S, Wu H, Yu Y, Li N, Yu L, Wang Y, Li H, Zhang D, Zhang Z. Median Effective Dose of Remifentanil for the Prevention of Pain Caused by the Injection of Rocuronium: An Age-Stratified Study. Pain Ther 2023; 12:683-694. [PMID: 36884108 PMCID: PMC10199981 DOI: 10.1007/s40122-023-00490-5] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 02/20/2023] [Indexed: 03/09/2023] Open
Abstract
INTRODUCTION Rocuronium intravenous pain is common in induction of general anesthesia. The aim of our study was to determine the median effective dose (ED50) of prophylactic intravenous remifentanil for the prevention of rocuronium injection pain and to explore the effect of age on the ED50. METHODS Eighty-nine adult patients undergoing elective general anesthesia, ASA I or II, regardless of gender or weight, were stratified according to age: group R1 18-44 years, group R2 45-59 years, and group R3 60-80 years. The initial dose of prophylactic remifentanil before rocuronium injection was set at 1 μg/kg lean body weight (LBW). The remifentanil doses were adjusted according to the degree of injection pain using the Dixon sequential method, with a ratio of 1.1 between adjacent doses. Injection pain was graded, and the occurrence of injection pain and adverse reactions were recorded. The ED50 and 95% confidence intervals (CIs) of remifentanil were calculated using the Dixon-Massey formula. Patients were asked whether they recalled feeling any injection pain in the post-anesthesia care unit (PACU). RESULTS The ED50 (95% CIs) of prophylactic remifentanil for the prevention of rocuronium injection pain were 1.266 μg/kg (1.186-1.351 μg/kg), 1.188 μg/kg (1.065-1.324 μg/kg), and 1.070 μg/kg (1.014-1.129 μg/kg) LBW in group R1, group R2, and group R3, respectively. No adverse reactions to remifentanil occurred in any group. In PACU, 84.6, 86.7, and 85.7% of patients who experienced injection pain had memories of the pain in group R1, group R2, and group R3, respectively. CONCLUSIONS Prophylactic intravenous remifentanil can prevent rocuronium injection pain, and its ED50 decreases with age, with 1.266 μg/kg (18-44 years), 1.188 μg/kg (45-59 years), and 1.070 μg/kg LBW (60-80 years), respectively. TRIAL REGISTRATION ClinicalTrials.gov: NCT05217238 (registration date 18 Dec 2021).
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Affiliation(s)
- Shiting Yan
- Department of Anesthesiology, The Affiliated Hospital of Yangzhou University, Yangzhou University, 368 Hanjiang Middle Road, Yangzhou, 225012, Jiangsu, China
- Graduate School, Dalian Medical University, lushun 9 western south road, Dalian, 116000, Liaoning, China
| | - Hao Wu
- Department of Anesthesiology, The Affiliated Hospital of Yangzhou University, Yangzhou University, 368 Hanjiang Middle Road, Yangzhou, 225012, Jiangsu, China
- School of Medicine, Yangzhou University, 136 Jiang Yang Middle Road, Yangzhou, 225009, Jiangsu, China
| | - Yanlong Yu
- Department of Anesthesiology, The Affiliated Hospital of Yangzhou University, Yangzhou University, 368 Hanjiang Middle Road, Yangzhou, 225012, Jiangsu, China
- School of Medicine, Yangzhou University, 136 Jiang Yang Middle Road, Yangzhou, 225009, Jiangsu, China
| | - Ning Li
- Department of Anesthesiology, The Affiliated Hospital of Yangzhou University, Yangzhou University, 368 Hanjiang Middle Road, Yangzhou, 225012, Jiangsu, China
- School of Medicine, Yangzhou University, 136 Jiang Yang Middle Road, Yangzhou, 225009, Jiangsu, China
| | - Leyang Yu
- Department of Anesthesiology, The Affiliated Hospital of Yangzhou University, Yangzhou University, 368 Hanjiang Middle Road, Yangzhou, 225012, Jiangsu, China
- Graduate School, Dalian Medical University, lushun 9 western south road, Dalian, 116000, Liaoning, China
| | - Ying Wang
- Department of Anesthesiology, The Affiliated Hospital of Yangzhou University, Yangzhou University, 368 Hanjiang Middle Road, Yangzhou, 225012, Jiangsu, China
- Graduate School, Dalian Medical University, lushun 9 western south road, Dalian, 116000, Liaoning, China
| | - Hu Li
- Department of Anesthesiology, The Affiliated Hospital of Yangzhou University, Yangzhou University, 368 Hanjiang Middle Road, Yangzhou, 225012, Jiangsu, China
- Graduate School, Dalian Medical University, lushun 9 western south road, Dalian, 116000, Liaoning, China
| | - Dongsheng Zhang
- Department of Anesthesiology, The Affiliated Hospital of Yangzhou University, Yangzhou University, 368 Hanjiang Middle Road, Yangzhou, 225012, Jiangsu, China
| | - Zhuan Zhang
- Department of Anesthesiology, The Affiliated Hospital of Yangzhou University, Yangzhou University, 368 Hanjiang Middle Road, Yangzhou, 225012, Jiangsu, China.
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49
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Xu M, An B, Zhang D. Competing mechanisms in fracture of staggered mineralized collagen fibril arrays. J Mech Behav Biomed Mater 2023; 141:105761. [PMID: 36905708 DOI: 10.1016/j.jmbbm.2023.105761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/17/2023] [Accepted: 03/05/2023] [Indexed: 03/08/2023]
Abstract
Mineralized collagen fibril (MCF) arrays are important structural elements involved in inelastic deformation and fracture process of bone. Recent experiments have shown that MCF breakage has an influence on toughening of bone. Motivated by the experiments, we carry out the analyses of fracture in staggered MCF arrays. The plastic deformation of extrafibrillar matrix (EFM), debonding of the MCF-EFM interface, plastic deformation of MCFs and MCF fracture are accounted for in the calculations. It is found that the fracture of MCF arrays is controlled by competition between MCF breakage and debonding of the MCF-EFM interface. The MCF-EFM interface with high shear strength and large shear fracture energy is capable of activating MCF breakage, which promotes plastic energy dissipation of MCF arrays. In the absence of MCF breakage, damage energy dissipation is higher than plastic energy dissipation and debonding of the MCF-EFM interface provides the major contribution to toughening of bone. We have further revealed that the relative contributions of interfacial debonding mechanism and plastic deformation of MCF arrays are dependent on fracture properties of the MCF-EFM interface in the normal direction. The high normal strength gives rise to enhanced damage energy dissipation and amplified plastic deformation of MCF arrays; while high normal fracture energy of the interface suppresses plastic deformation of MCFs.
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Affiliation(s)
- Min Xu
- Shanghai Key Laboratory of Mechanics in Energy Engineering, Shanghai Institute of Applied Mathematics and Mechanics, School of Mechanics and Engineering Science, Shanghai University, Shanghai, 200444, China
| | - Bingbing An
- Shanghai Key Laboratory of Mechanics in Energy Engineering, Shanghai Institute of Applied Mathematics and Mechanics, School of Mechanics and Engineering Science, Shanghai University, Shanghai, 200444, China; Shaoxing Institute of Technology, Shanghai University, Shaoxing, 312074, China.
| | - Dongsheng Zhang
- Shanghai Key Laboratory of Mechanics in Energy Engineering, Shanghai Institute of Applied Mathematics and Mechanics, School of Mechanics and Engineering Science, Shanghai University, Shanghai, 200444, China; Shaoxing Institute of Technology, Shanghai University, Shaoxing, 312074, China
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50
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He G, Xia B, Feng Y, Chen Y, Fan L, Zhang D. Modeling the damage-induced softening behavior of brain white matter using a coupled hyperelasticty-damage model. J Mech Behav Biomed Mater 2023; 141:105753. [PMID: 36898357 DOI: 10.1016/j.jmbbm.2023.105753] [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: 09/09/2022] [Revised: 02/26/2023] [Accepted: 03/01/2023] [Indexed: 03/07/2023]
Abstract
White matter in the brain is structurally anisotropic consisting of large bundle of aligned axonal fibers. Hyperelastic, transversely isotropic constitutive models are typically used in the modeling and simulation of such tissues. However, most studies constrain the material models to describe the mechanical behavior of white matter in the limit of small deformation, without considering the experimentally observed damage initiation and damage-induced material softening in large strain regime. In this study, we extend a previously developed transversely isotropic hyperelasticity model for white matter by coupling it with damage equations within the framework of thermodynamics and using continuum damage mechanics method. Two homogeneous deformation cases are used to demonstrate the proposed model's capability in capturing the damage-induced softening behaviors of white matter under uniaxial loading and simple shear, along with the investigation of fiber orientation effect on such behaviors and material stiffness. As a demonstration case of inhomogeneous deformation, the proposed model is also implemented into finite element codes to reproduce the experimental data (nonlinear material behavior and damage initiation) from an indentation configuration of porcine white matter. Good agreement between numerical results and experimental data is achieved indicating the potential of the proposed model in characterizing the mechanical behaviors of white matter considering damage at large strain.
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Affiliation(s)
- Ge He
- Shanghai Key Laboratory of Mechanics in Energy Engineering, Shanghai Institute of Applied Mathematics and Mechanics, School of Mechanics and Engineering Science, Shanghai University, Shanghai, 200444, China.
| | - Bing Xia
- Shanghai Key Laboratory of Mechanics in Energy Engineering, Shanghai Institute of Applied Mathematics and Mechanics, School of Mechanics and Engineering Science, Shanghai University, Shanghai, 200444, China
| | - Yuan Feng
- Institute for Medical Imaging Technology, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Yu Chen
- Institute for Medical Imaging Technology, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Lei Fan
- Department of Mechanical Engineering, Michigan State University, East Lansing, MI, 48824, USA
| | - Dongsheng Zhang
- Shanghai Key Laboratory of Mechanics in Energy Engineering, Shanghai Institute of Applied Mathematics and Mechanics, School of Mechanics and Engineering Science, Shanghai University, Shanghai, 200444, China
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