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Zi B, Zheng H, Zhou T, Lu Q, Chen M, Xiao B, Zhang Y, Qiu Z, Sun H, Zhao J, Luo Z, He T, Zhang J, Zhao Z, Liu Q. Changeable Active Sites by Pr Doping CuSA-TiO 2 Photocatalyst for Excellent Hydrogen Production. Small 2024:e2305779. [PMID: 38764279 DOI: 10.1002/smll.202305779] [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: 07/10/2023] [Revised: 12/19/2023] [Indexed: 05/21/2024]
Abstract
Photocatalytic water splitting for clean hydrogen production has been a very attractive research field for decades. However, the insightful understanding of the actual active sites and their impact on catalytic performance is still ambiguous. Herein, a Pr-doped TiO2-supported Cu single atom (SA) photocatalyst is successfully synthesized (noted as Cu/Pr-TiO2). It is found that Pr dopants passivate the formation of oxygen vacancies, promoting the density of photogenerated electrons on the CuSAs, and optimizing the electronic structure and H* adsorption behavior on the CuSA active sites. The photocatalytic hydrogen evolution rate of the obtained Cu/Pr-TiO2 catalyst reaches 32.88 mmol g-1 h-1, 2.3 times higher than the Cu/TiO2. Innovatively, the excellent catalytic activity and performance is attributed to the active sites change from O atoms to CuSAs after Pr doping is found. This work provides new insight for understanding the accurate roles of single atoms in photocatalytic water splitting.
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Affiliation(s)
- Baoye Zi
- National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory for Micro/nano Materials & Technology, School of Materials Science and Engineering, Yunnan University, Kunming, 650091, China
| | - Hongshun Zheng
- National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory for Micro/nano Materials & Technology, School of Materials Science and Engineering, Yunnan University, Kunming, 650091, China
| | - Tong Zhou
- National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory for Micro/nano Materials & Technology, School of Materials Science and Engineering, Yunnan University, Kunming, 650091, China
| | - Qingjie Lu
- National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory for Micro/nano Materials & Technology, School of Materials Science and Engineering, Yunnan University, Kunming, 650091, China
| | - Mingpeng Chen
- National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory for Micro/nano Materials & Technology, School of Materials Science and Engineering, Yunnan University, Kunming, 650091, China
| | - Bin Xiao
- National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory for Micro/nano Materials & Technology, School of Materials Science and Engineering, Yunnan University, Kunming, 650091, China
| | - Yumin Zhang
- National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory for Micro/nano Materials & Technology, School of Materials Science and Engineering, Yunnan University, Kunming, 650091, China
| | - Zhishi Qiu
- National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory for Micro/nano Materials & Technology, School of Materials Science and Engineering, Yunnan University, Kunming, 650091, China
| | - Huachuan Sun
- National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory for Micro/nano Materials & Technology, School of Materials Science and Engineering, Yunnan University, Kunming, 650091, China
| | - Jianhong Zhao
- National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory for Micro/nano Materials & Technology, School of Materials Science and Engineering, Yunnan University, Kunming, 650091, China
| | - Zhongge Luo
- National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory for Micro/nano Materials & Technology, School of Materials Science and Engineering, Yunnan University, Kunming, 650091, China
| | - Tianwei He
- National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory for Micro/nano Materials & Technology, School of Materials Science and Engineering, Yunnan University, Kunming, 650091, China
| | - Jin Zhang
- National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory for Micro/nano Materials & Technology, School of Materials Science and Engineering, Yunnan University, Kunming, 650091, China
| | - Zongyan Zhao
- Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Qingju Liu
- National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory for Micro/nano Materials & Technology, School of Materials Science and Engineering, Yunnan University, Kunming, 650091, China
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Ma X, Räisänen SE, Garcia-Ascolani ME, Bobkov M, He T, Islam MZ, Li Y, Peng R, Reichenbach M, Serviento AM, Soussan E, Sun X, Wang K, Yang S, Zeng Z, Niu M. Effects of 3-nitrooxypropanol (3-NOP, Bovaer®10) and whole cottonseed on milk production and enteric methane emissions from dairy cows under Swiss management conditions. J Dairy Sci 2024:S0022-0302(24)00801-4. [PMID: 38762115 DOI: 10.3168/jds.2023-24460] [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: 11/22/2023] [Accepted: 03/29/2024] [Indexed: 05/20/2024]
Abstract
The objective of this study was to determine the potential effect and interaction of 3- nitrooxypropanol (3-NOP; Bovaer®) and whole cottonseed (WCS) on lactational performance, and enteric methane (CH4) emission of dairy cows. A total of 16 multiparous cows, including 8 Holstein Friesian (HF) and 8 Brown Swiss (BS) [224 ± 36 d in milk, 26 ± 3.7 kg milk yield], were used in a split-plot design, where the main plot was the breed of cows. Within each subplot, cows were randomly assigned to a treatment sequence in a replicated 4 × 4 Latin Square design with 2 × 2 factorial arrangements of treatments with 4, 24-d periods. The experimental treatments were: 1) Control (basal TMR), 2) 3-NOP (60 mg/kg TMR DM), 3) WCS (5% TMR DM), and 4) 3-NOP + WCS. The treatment diets were balanced for ether extract, crude protein, and NDF contents (4%, 16%, and 43% of TMR DM, respectively). The basal diets were fed twice daily at 0800 and 1800 h. Dry matter intake (DMI) and milk yield were measured daily, and enteric gas emissions were measured (using the GreenFeed system) during the last 3 d of each 24-d experimental period when animals were housed in tie stalls. There was no difference in DMI on treatment level, whereas the WCS treatment increased ECM yield and milk fat yield. There was no interaction of 3-NOP and WCS for any of the enteric gas emission parameters, but 3-NOP decreased CH4 production (g/d), CH4 yield (g/kg DMI), and CH4 intensity (g/kg ECM) by 13, 14 and 13%, respectively. Further, an unexpected interaction of breed by 3-NOP was observed for different enteric CH4 emission metrics: HF cows had a greater CH4 mitigation effect compared with BS cows for CH4 production (g/d; 18 vs. 8%), CH4 intensity (g/kg MY; 19% vs. 3%) and CH4 intensity (g/kg ECM; 19 vs. 4%). Hydrogen production was increased by 2.85 folds in HF and 1.53 folds in BS cows receiving 3-NOP. Further, there was a 3-NOP ' Time interaction for both breeds. In BS cows, 3-NOP tended to reduce CH4 production by 18% at around 4 h after morning feeding but no effect was observed at other time points. In HF cows, the greatest mitigation effect of 3-NOP (29.6%) was observed immediately after morning feeding and it persisted at around 23% to 26% for 10 h until the second feed provision, and 3 h thereafter, in the evening. In conclusion, supplementing 3-NOP at 60 mg/kg DM to a high fiber diet resulted in 18 to 19% reduction in enteric CH4 emission in Swiss Holstein Friesian cows. The lower response to 3-NOP by BS cows was unexpected and has not been observed in other studies. These results should be interpreted with caution due to low number of cows per breed. Lastly, supplementing WCS at 5% of DM improved ECM and milk fat yield but did not enhance CH4 inhibition effect of 3-NOP of dairy cows.
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Affiliation(s)
- X Ma
- Department of Environmental Systems Science, Institute of Agricultural Sciences, ETH Zürich, Zürich 8092, Switzerland
| | - S E Räisänen
- Department of Environmental Systems Science, Institute of Agricultural Sciences, ETH Zürich, Zürich 8092, Switzerland
| | - M E Garcia-Ascolani
- Nestlé Institute of Agricultural Sciences, Société des Produits Nestlé S. A., Lausanne, Switzerland
| | - M Bobkov
- Nestlé Institute of Agricultural Sciences, Société des Produits Nestlé S. A., Lausanne, Switzerland
| | - T He
- Department of Environmental Systems Science, Institute of Agricultural Sciences, ETH Zürich, Zürich 8092, Switzerland
| | - M Z Islam
- Department of Environmental Systems Science, Institute of Agricultural Sciences, ETH Zürich, Zürich 8092, Switzerland
| | - Y Li
- Department of Environmental Systems Science, Institute of Agricultural Sciences, ETH Zürich, Zürich 8092, Switzerland
| | - R Peng
- Department of Environmental Systems Science, Institute of Agricultural Sciences, ETH Zürich, Zürich 8092, Switzerland
| | - M Reichenbach
- Department of Environmental Systems Science, Institute of Agricultural Sciences, ETH Zürich, Zürich 8092, Switzerland
| | - A M Serviento
- Department of Environmental Systems Science, Institute of Agricultural Sciences, ETH Zürich, Zürich 8092, Switzerland
| | - E Soussan
- Nestlé Institute of Agricultural Sciences, Société des Produits Nestlé S. A., Lausanne, Switzerland
| | - X Sun
- Department of Environmental Systems Science, Institute of Agricultural Sciences, ETH Zürich, Zürich 8092, Switzerland
| | - K Wang
- Department of Environmental Systems Science, Institute of Agricultural Sciences, ETH Zürich, Zürich 8092, Switzerland
| | - S Yang
- Department of Environmental Systems Science, Institute of Agricultural Sciences, ETH Zürich, Zürich 8092, Switzerland
| | - Z Zeng
- Department of Environmental Systems Science, Institute of Agricultural Sciences, ETH Zürich, Zürich 8092, Switzerland
| | - M Niu
- Department of Environmental Systems Science, Institute of Agricultural Sciences, ETH Zürich, Zürich 8092, Switzerland.
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Zhu C, He L, He T, Liang Y, Zhang BW, Zhao HY, Guan H, Yang XK, Hu DH, Han JT, Liu JQ. [Clinical effects of early rehabilitation treatment after repair surgery of skin and soft tissue defects accompanied by extensor tendon injury on the back of hand]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2024; 40:365-372. [PMID: 38664031 DOI: 10.3760/cma.j.cn501225-20230820-00057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
Objective: To explore the clinical effects of early rehabilitation treatment after repair surgery of skin and soft tissue defects accompanied by extensor tendon injury on the back of hand. Methods: This study was a retrospective non-randomized controlled study. From February 2015 to February 2023, 24 patients (15 males and 9 females, aged 12-55 years) with skin and soft tissue defects accompanied by extensor tendon injury on the back of hand, who met the inclusion criteria and were repaired with flap transplantation and tendon grafting or tendon anastomosis, were admitted to the First Affiliated Hospital of Air Force Medical University. According to different intervention time for postoperative rehabilitation treatment of patients, the patients were divided into conventional rehabilitation group and early rehabilitation group, with 12 cases in each group. Patients in early rehabilitation group received rehabilitation treatment immediately after surgery under the rehabilitation guidance of specialized rehabilitation physicians based on the characteristics of different postoperative periods. Patients in conventional rehabilitation group began rehabilitation treatment from the third week after surgery, and their rehabilitation treatment was the same as that of patients in early rehabilitation group from the second week after surgery. The patients in 2 groups were treated in the hospital until the sixth week after surgery. The occurrence of flap vascular crisis and tendon rupture were observed within 6 weeks after surgery. After 6 weeks of surgery, the manual muscle test was used to measure the pinching force between the index finger and thumb, lateral pinching force, three-point pinching force, and grip force of the affected hand; the total action motion method was used to evaluate the finger joint range of motion of the affected hand, and the excellent and good ratio was calculated; the Carroll upper extremity function test was used to score and rate the function of the affected hand. Results: Within 6 weeks after surgery, only 1 patient in conventional rehabilitation group suffered from venous crisis, and the flap survived after the second surgical exploration and anastomosis of blood vessels; there was no occurrence of tendon rupture in patients of 2 groups. After 6 weeks of surgery, there were no statistically significant differences in pinching force between the index finger and thumb, lateral pinching force, three-point pinching force, or grip force of the affected hand between the two groups of patients (P>0.05); the excellent and good ratio of the finger joint range of motion of the affected hand of patients in early rehabilitation group was 11/12, which was higher than 7/12 in conventional rehabilitation group, but there was no statistically significant difference (P>0.05); the affected hand function score of patients in early rehabilitation group was 90±6, which was significantly higher than 83±8 in conventional rehabilitation group (t=2.41, P<0.05); the function rating of the affected hand of patients in early rehabilitation group was obviously better than that in conventional rehabilitation group (Z=2.04, P<0.05). Conclusions: Early rehabilitation treatment for patients with skin and soft tissue defects accompanied by extensor tendon injury on the back of hand after repair surgery can improve hand function, but it would not increase surgery related complications, which is worthy of clinical promotion and application.
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Affiliation(s)
- C Zhu
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - L He
- Department of Plastic, Aesthetic & Maxillofacial Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - T He
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - Y Liang
- Department of Statistics, Air Force Medical University, Xi'an 710032, China
| | - B W Zhang
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - H Y Zhao
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - H Guan
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - X K Yang
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - D H Hu
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - J T Han
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - J Q Liu
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
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Ma J, He T, Yu R, Zhao Y, Hu H, Zhang W, Zhang Y, Liu Z, Chen M. Brassica napus BnaA09.MYB52 enhances seed coat mucilage accumulation and tolerance to osmotic stress during seed germination in Arabidopsis thaliana. Plant Biol (Stuttg) 2024. [PMID: 38634818 DOI: 10.1111/plb.13641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 02/21/2024] [Indexed: 04/19/2024]
Abstract
Seed coat mucilage plays an important role in promoting seed germination under adversity. Previous studies have shown that Arabidopsis thaliana MYB52 (AtMYB52) can positively regulate seed coat mucilage accumulation. However, the role of Brassica napus MYB52 (BnaMYB52) in accumulation of seed coat mucilage and tolerance to osmotic stress during seed germination remains largely unknown. We cloned the BnaA09.MYB52 coding domain sequence from B. napus cv ZS11, identified its conserved protein domains and elucidated its relationship with homologues from a range of plant species. Transgenic plants overexpressing BnaA09.MYB52 in the A. thaliana myb52-1 mutant were generated through Agrobacterium-mediated transformation and used to assess the possible roles of BnaA09.MYB52 in accumulation of seed coat mucilage and tolerance to osmotic stress during seed germination. Subcellular localization and transcriptional activity assays demonstrated that BnaA09.MYB52 functions as a transcription factor. RT-qPCR results indicate that BnaA09.MYB52 is predominantly expressed in roots and developing seeds of B. napus cv ZS11. Introduction of BnaA09.MYB52 into myb52-1 restored thinner seed coat mucilage in this mutant to levels in the wild type. Consistently, expression levels of three key genes participating in mucilage formation in developing seeds of myb52-1 were also restored to wild type levels by overexpressing BnaA09.MYB52. Furthermore, BnaA09.MYB52 was induced by osmotic stress during seed germination in B. napus, and ectopic expression of BnaA09.MYB52 successfully corrected sensitivity of the myb52-1 mutant to osmotic stress during seed germination. These findings enhance our understanding of the functions of BnaA09.MYB52 and provide a novel strategy for future B. napus breeding.
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Affiliation(s)
- J Ma
- National Yangling Agricultural Biotechnology & Breeding Center, Shaanxi Key Laboratory of Crop Heterosis, College of Agronomy, Northwest A&F University, Yangling, Shaanxi, China
| | - T He
- National Yangling Agricultural Biotechnology & Breeding Center, Shaanxi Key Laboratory of Crop Heterosis, College of Agronomy, Northwest A&F University, Yangling, Shaanxi, China
| | - R Yu
- National Yangling Agricultural Biotechnology & Breeding Center, Shaanxi Key Laboratory of Crop Heterosis, College of Agronomy, Northwest A&F University, Yangling, Shaanxi, China
| | - Y Zhao
- National Yangling Agricultural Biotechnology & Breeding Center, Shaanxi Key Laboratory of Crop Heterosis, College of Agronomy, Northwest A&F University, Yangling, Shaanxi, China
| | - H Hu
- National Yangling Agricultural Biotechnology & Breeding Center, Shaanxi Key Laboratory of Crop Heterosis, College of Agronomy, Northwest A&F University, Yangling, Shaanxi, China
| | - W Zhang
- National Yangling Agricultural Biotechnology & Breeding Center, Shaanxi Key Laboratory of Crop Heterosis, College of Agronomy, Northwest A&F University, Yangling, Shaanxi, China
| | - Y Zhang
- Department of Ecological and Environmental Engineering, Yangling Vocational & Technical College, Yangling, Shaanxi, China
| | - Z Liu
- National Yangling Agricultural Biotechnology & Breeding Center, Shaanxi Key Laboratory of Crop Heterosis, College of Agronomy, Northwest A&F University, Yangling, Shaanxi, China
| | - M Chen
- National Yangling Agricultural Biotechnology & Breeding Center, Shaanxi Key Laboratory of Crop Heterosis, College of Agronomy, Northwest A&F University, Yangling, Shaanxi, China
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Islam MZ, Räisänen SE, Schudel A, Wang K, He T, Kunz C, Li Y, Ma X, Serviento AM, Zeng Z, Wahl F, Zenobi R, Giannoukos S, Niu M. Exhalomics as a noninvasive method for assessing rumen fermentation in dairy cows: Can exhaled-breath metabolomics replace rumen sampling? J Dairy Sci 2024; 107:2099-2110. [PMID: 37949405 DOI: 10.3168/jds.2023-24124] [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: 09/05/2023] [Accepted: 10/20/2023] [Indexed: 11/12/2023]
Abstract
Previously, we used secondary electrospray ionization-mass spectrometry (SESI-MS) to investigate the diurnal patterns and signal intensities of exhaled (EX) volatile fatty acids (VFA) of dairy cows. The current study aimed to validate the potential of an exhalomics approach for evaluating rumen fermentation. The experiment was conducted in a switchback design, with 3 periods of 9 d each, including 7 d for adaptation and 2 d for sampling. Four rumen-cannulated original Swiss Brown (Braunvieh) cows were randomly assigned to 1 of 2 diet sequences (ABA or BAB): (A) low starch (LS; 6.31% starch on a dry matter basis) and (B) high starch (HS; 16.2% starch on a dry matter basis). Feeding was once per day at 0830 h. Exhalome (with the GreenFeed System), and rumen samples were collected 8 times to represent every 3 h of a day, and EX-VFA and ruminal (RM)-VFA were analyzed using SESI-MS and HPLC, respectively. Furthermore, the VFA concentration in the gas phase (HR-VFA) was predicted based on RM-VFA and Henry's Law (HR) constants. No interactions were identified between the types of diets (HS vs. LS) and the measurement methods on daily average VFA profiles (RM vs. EX or HR vs. EX), suggesting a consistent performance among the methods. Additionally, when the 3-h interval VFA data from HS and LS diets were analyzed separately, no interactions were observed between methods and time of day, indicating that the relative daily pattern of VFA molar proportions was similar regardless of the VFA measurement method used. The results revealed that the levels of acetate sharply increased immediately after feeding, trailed by an increase in the acetate:propionate ratio and a steady increase for propionate (2 h after feeding the HS diet, 4 h for LS), and butyrate. This change was more pronounced for the HS diet than the LS diet. However, there was no overall diet effect on the VFA molar proportions, although the measurement methods affected the molar proportions. Furthermore, we observed a strong positive correlation between the levels of RM and EX acetate for both diets (HS: r = 0.84; LS: r = 0.85), RM and EX propionate (r = 0.74), and RM and EX acetate:propionate ratio (r = 0.80). Both EX-VFA and RM-VFA exhibited similar responses to feeding and dietary treatments, suggesting that EX-VFA could serve as a useful proxy for characterizing RM-VFA molar proportions to evaluate rumen fermentation. Similar relationships were observed between RM-VFA and HR-VFA. In conclusion, this study underscores the potential of exhalomics as a reliable approach for assessing rumen fermentation. Moving forward, research should further explore the depth of exhalomics in ruminant studies to provide a comprehensive insight into rumen fermentation metabolites, especially across diverse dietary conditions.
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Affiliation(s)
- M Z Islam
- Department of Environmental Systems Science, Institute of Agricultural Sciences, ETH Zürich, 8092 Zürich, Switzerland
| | - S E Räisänen
- Department of Environmental Systems Science, Institute of Agricultural Sciences, ETH Zürich, 8092 Zürich, Switzerland
| | - A Schudel
- Department of Environmental Systems Science, Institute of Agricultural Sciences, ETH Zürich, 8092 Zürich, Switzerland
| | - K Wang
- Department of Environmental Systems Science, Institute of Agricultural Sciences, ETH Zürich, 8092 Zürich, Switzerland
| | - T He
- Department of Environmental Systems Science, Institute of Agricultural Sciences, ETH Zürich, 8092 Zürich, Switzerland
| | - C Kunz
- Department of Environmental Systems Science, Institute of Agricultural Sciences, ETH Zürich, 8092 Zürich, Switzerland
| | - Y Li
- Department of Environmental Systems Science, Institute of Agricultural Sciences, ETH Zürich, 8092 Zürich, Switzerland
| | - X Ma
- Department of Environmental Systems Science, Institute of Agricultural Sciences, ETH Zürich, 8092 Zürich, Switzerland
| | - A M Serviento
- Department of Environmental Systems Science, Institute of Agricultural Sciences, ETH Zürich, 8092 Zürich, Switzerland
| | - Z Zeng
- Department of Environmental Systems Science, Institute of Agricultural Sciences, ETH Zürich, 8092 Zürich, Switzerland
| | - F Wahl
- Food Microbial Systems Research Division, Agroscope, 3003 Bern, Switzerland
| | - R Zenobi
- Department of Chemistry and Applied Biosciences, Analytical Chemistry, ETH Zürich, 8093 Zürich, Switzerland
| | - S Giannoukos
- Department of Chemistry and Applied Biosciences, Analytical Chemistry, ETH Zürich, 8093 Zürich, Switzerland.
| | - M Niu
- Department of Environmental Systems Science, Institute of Agricultural Sciences, ETH Zürich, 8092 Zürich, Switzerland.
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Zou X, Xie J, Mei Z, Jing Q, Sheng X, Zhang C, Yang Y, Sun M, Ren F, Wang L, He T, Kong Y, Guo H. High-entropy engineering with regulated defect structure and electron interaction tuning active sites for trifunctional electrocatalysis. Proc Natl Acad Sci U S A 2024; 121:e2313239121. [PMID: 38498710 PMCID: PMC10990096 DOI: 10.1073/pnas.2313239121] [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: 08/08/2023] [Accepted: 01/30/2024] [Indexed: 03/20/2024] Open
Abstract
High-entropy alloy nanoparticles (HEANs) possessing regulated defect structure and electron interaction exhibit a guideline for constructing multifunctional catalysts. However, the microstructure-activity relationship between active sites of HEANs for multifunctional electrocatalysts is rarely reported. In this work, HEANs distributed on multi-walled carbon nanotubes (HEAN/CNT) are prepared by Joule heating as an example to explain the mechanism of trifunctional electrocatalysis for oxygen reduction, oxygen evolution, and hydrogen evolution reaction. HEAN/CNT excels with unmatched stability, maintaining a 0.8V voltage window for 220 h in zinc-air batteries. Even after 20 h of water electrolysis, its performance remains undiminished, highlighting exceptional endurance and reliability. Moreover, the intrinsic characteristics of the defect structure and electron interaction for HEAN/CNT are investigated in detail. The electrocatalytic mechanism of trifunctional electrocatalysis of HEAN/CNT under different conditions is identified by in situ monitoring and theoretical calculation. Meanwhile, the electron interaction and adaptive regulation of active sites in the trifunctional electrocatalysis of HEANs were further verified by density functional theory. These findings could provide unique ideas for designing inexpensive multifunctional high-entropy electrocatalysts.
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Affiliation(s)
- Xiaoxiao Zou
- School of Materials and Energy, International Joint Research Center for Advanced Energy Materials of Yunnan Province, Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies, Yunnan University, Kunming650091, China
| | - Jiyang Xie
- School of Materials and Energy, International Joint Research Center for Advanced Energy Materials of Yunnan Province, Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies, Yunnan University, Kunming650091, China
| | - Zhiyuan Mei
- School of Materials and Energy, International Joint Research Center for Advanced Energy Materials of Yunnan Province, Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies, Yunnan University, Kunming650091, China
| | - Qi Jing
- School of Materials and Energy, International Joint Research Center for Advanced Energy Materials of Yunnan Province, Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies, Yunnan University, Kunming650091, China
| | - Xuelin Sheng
- School of Materials and Energy, International Joint Research Center for Advanced Energy Materials of Yunnan Province, Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies, Yunnan University, Kunming650091, China
| | - Conghui Zhang
- School of Materials and Energy, International Joint Research Center for Advanced Energy Materials of Yunnan Province, Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies, Yunnan University, Kunming650091, China
| | - Yongxin Yang
- School of Materials and Energy, International Joint Research Center for Advanced Energy Materials of Yunnan Province, Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies, Yunnan University, Kunming650091, China
| | - Mengjiao Sun
- School of Materials and Energy, International Joint Research Center for Advanced Energy Materials of Yunnan Province, Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies, Yunnan University, Kunming650091, China
| | - Futong Ren
- School of Materials and Energy, International Joint Research Center for Advanced Energy Materials of Yunnan Province, Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies, Yunnan University, Kunming650091, China
| | - Lilian Wang
- School of Materials and Energy, International Joint Research Center for Advanced Energy Materials of Yunnan Province, Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies, Yunnan University, Kunming650091, China
| | - Tianwei He
- School of Materials and Energy, International Joint Research Center for Advanced Energy Materials of Yunnan Province, Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies, Yunnan University, Kunming650091, China
| | - Youchao Kong
- Department of Physics and Electronic Engineering, Yancheng Teachers University, Yancheng224002, China
| | - Hong Guo
- School of Materials and Energy, International Joint Research Center for Advanced Energy Materials of Yunnan Province, Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies, Yunnan University, Kunming650091, China
- Southwest United Graduate School, Kunming650091, China
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Xu W, Diesen E, He T, Reuter K, Margraf JT. Discovering High Entropy Alloy Electrocatalysts in Vast Composition Spaces with Multiobjective Optimization. J Am Chem Soc 2024; 146:7698-7707. [PMID: 38466356 PMCID: PMC10958507 DOI: 10.1021/jacs.3c14486] [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: 12/20/2023] [Revised: 02/21/2024] [Accepted: 02/26/2024] [Indexed: 03/13/2024]
Abstract
High entropy alloys (HEAs) are a highly promising class of materials for electrocatalysis as their unique active site distributions break the scaling relations that limit the activity of conventional transition metal catalysts. Existing Bayesian optimization (BO)-based virtual screening approaches focus on catalytic activity as the sole objective and correspondingly tend to identify promising materials that are unlikely to be entropically stabilized. Here, we overcome this limitation with a multiobjective BO framework for HEAs that simultaneously targets activity, cost-effectiveness, and entropic stabilization. With diversity-guided batch selection further boosting its data efficiency, the framework readily identifies numerous promising candidates for the oxygen reduction reaction that strike the balance between all three objectives in hitherto unchartered HEA design spaces comprising up to 10 elements.
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Affiliation(s)
- Wenbin Xu
- Fritz-Haber-Institut
der Max-Planck-Gesellschaft, Berlin D-14195, Germany
- Lawrence
Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Elias Diesen
- Fritz-Haber-Institut
der Max-Planck-Gesellschaft, Berlin D-14195, Germany
| | - Tianwei He
- Yunnan
Key Laboratory for Micro/Nano Materials & Technology, National
Center for International Research on Photoelectric and Energy Materials,
School of Materials and Energy, Yunnan University, Kunming 650091, China
| | - Karsten Reuter
- Fritz-Haber-Institut
der Max-Planck-Gesellschaft, Berlin D-14195, Germany
| | - Johannes T. Margraf
- Fritz-Haber-Institut
der Max-Planck-Gesellschaft, Berlin D-14195, Germany
- Bavarian
Center for Battery Technology (BayBatt), University of Bayreuth, Bayreuth D-95447, Germany
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8
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Kong Y, Li X, Puente Santiago AR, He T. Nonmetal Atom Doping Induced Orbital Shifts and Charge Modulation at the Edge of Two-Dimensional Boron Carbonitride Leading to Enhanced Photocatalytic Nitrogen Reduction. J Am Chem Soc 2024; 146:5987-5997. [PMID: 38381029 DOI: 10.1021/jacs.3c12780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
Electronic structure, particularly charge state analysis, plays a crucial role in comprehending catalytic mechanisms. This study focuses on metal-free boron carbonitride (BCN) nanosheets as a case study to investigate the impact of heteroatom doping on the charge state of active sites at the edge of two-dimensional (2D) metal-free nanomaterials. Our observations revealed that the doping induces a shift in the frontier py orbital near the Fermi level, accompanied by alterations in its charge state. These changes provide insights into the nitrogen adsorption descriptors and the critical hydrogenation step, ultimately leading to the proposal of a competitive charge transfer mechanism. Additionally, this exploration has led to the screening of five BCN-type structures (P@T1-C1, S@T1-B1, O@T1-B1, P@T1-B1C2, and P@T1-B1C3) with promising nitrogen reduction reaction (NRR) performances. The BCN structure (S@T1-B1) exhibited the lowest NRR overpotential reaching -0.2 V, which is associated with the proposed charge competition mechanism. Furthermore, the investigation delves into the key step hydrogenation mechanism, descriptors, and volcano diagrams of the conformational relationships. In addition, the proposed doping strategy endows the 2D-BCN with more sensitivity toward the solar spectrum, suggesting its application as a potential photocatalyst. Overall, this study establishes a strong foundation for the advancement of nonmetal-atom-doped BCN nanosheets in nitrogen reduction applications, while also providing a versatile framework for fine-tuning edge-site activity within the broader context of two-dimensional photo/electrocatalytic materials.
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Affiliation(s)
- Youchao Kong
- Department of Physics and Electronic Engineering, Yancheng Teachers University, Yancheng 224002, China
| | - Xiaoshuang Li
- School of Applied Physics and Materials, Wuyi University, Jiangmen 529020, China
| | - Alain R Puente Santiago
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Tianwei He
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, China
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9
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Mao X, He T, Kour G, Yin H, Ling C, Gao G, Jin Y, Liu Q, O'Mullane AP, Du A. Computational electrocatalysis beyond conventional hydrogen electrode model: CO 2 reduction to C 2 species on copper facilitated by dynamically formed solvent halide ions at the solid-liquid interface. Chem Sci 2024; 15:3330-3338. [PMID: 38425530 PMCID: PMC10901514 DOI: 10.1039/d3sc06471a] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Accepted: 01/23/2024] [Indexed: 03/02/2024] Open
Abstract
The reduction of CO2 into value-added chemicals and fuels has been actively studied as a promising strategy for mitigating carbon dioxide emissions. However, the dilemma for the experimentalist in choosing an appropriate reaction medium and neglecting the effect of solvent ions when using a simple thermochemical model, normally leads to the disagreement between experimental observations and theoretical calculations. In this work, by considering the effects of both the anion and cation, a more realistic CO2 reduction environment at the solid-liquid interface between copper and solvent ions has been systematically studied by using ab initio molecular dynamics and density functional theory. We revealed that the co-occurrence of alkali ions (K+) and halide ions (F-, Cl-, Br-, and I-) in the electric double layer (EDL) can enhance the adsorption of CO2 by more than 0.45 eV compared to that in pure water, and the calculated energy barrier for CO-CO coupling also decreases 0.32 eV in the presence of I ion on a negatively charged copper electrode. The hydrated ions can modulate the distribution of the charge near the solid-liquid interface, which significantly promotes CO2 reduction and meanwhile impedes the hydrogen evolution reaction. Therefore, our work unveils the significant role of halide ions at the electrode-electrolyte interface for promoting CO2 reduction on copper electrode.
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Affiliation(s)
- Xin Mao
- School of Chemistry and Physics, Centre for Material Science, Faculty of Science, Queensland University of Technology, Gardens Point Campus Brisbane QLD 4001 Australia
| | - Tianwei He
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University Kunming 650091 China
| | - Gurpreet Kour
- School of Chemistry and Physics, Centre for Material Science, Faculty of Science, Queensland University of Technology, Gardens Point Campus Brisbane QLD 4001 Australia
| | - Hanqing Yin
- School of Chemistry and Physics, Centre for Material Science, Faculty of Science, Queensland University of Technology, Gardens Point Campus Brisbane QLD 4001 Australia
| | - Chongyi Ling
- School of Physics, Southeast University Nanjing 211189 China
| | - Guoping Gao
- MOE Key Lab for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University Xi'an 710049 China
| | - Yonggang Jin
- CSIRO Mineral Resources 1 Technology Court Pullenvale QLD 4069 Australia
| | - Qingju Liu
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University Kunming 650091 China
| | - Anthony P O'Mullane
- School of Chemistry and Physics, Centre for Material Science, Faculty of Science, Queensland University of Technology, Gardens Point Campus Brisbane QLD 4001 Australia
| | - Aijun Du
- School of Chemistry and Physics, Centre for Material Science, Faculty of Science, Queensland University of Technology, Gardens Point Campus Brisbane QLD 4001 Australia
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10
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Chen W, Hu K, Zheng H, Pan Y, Lv Z, Tu X, Zheng C, He T, Huang F, Dong W. GeV 4 S 8 : a Novel Bimetallic Sulfide for Robust and Fast Potassium Storage. Small 2024:e2311638. [PMID: 38342598 DOI: 10.1002/smll.202311638] [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] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 01/30/2024] [Indexed: 02/13/2024]
Abstract
Potassium-ion batteries (PIBs) have attracted much attention due to their low production cost and abundant resources. Germanium is a promising alloying-type anode with a high theoretical capacity for PIBs, yet suffering significant volume expansion and sluggish potassium-ion transport kinetics. Herein, a rational strategy is formulated to disperse Ge atoms into transition metal V-S sulfide frameworks to form a loosely packed and metallic GeV4 S8 medium. The theoretical prediction shows that GeV4 S8 is conducive to the adsorption and diffusion of K+ . The V-S frameworks provide fast ion/electron diffusion channels and also help to buffer the volume expansion during K+ insertion. In situ and ex situ characterizations manifest that KGe alloy clusters are constrained and dispersed by potassiated VS2 topological structure during discharging, and revert to the original GeV4 S8 after charging. Consequently, as a novel anode for PIBs, GeV4 S8 provides a high specific capacity of ≈400 mAh g-1 at 0.5 C, maintaining 160 mAh g-1 even at 12.5 C and ≈80% capacity after 1000 cycles at 5 C, superior to most of the state-of-the-art anode materials. The proposed strategy of combining alloy and intercalation dual-functional units is expected to open up a new way for high-capacity and high-rate anode for PIBs.
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Affiliation(s)
- Wen Chen
- Shanghai, China State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
- School of Mechanical and Electrical Engineering, Jingdezhen Ceramic University, Jingdezhen, 333403, China
| | - Keyan Hu
- School of Mechanical and Electrical Engineering, Jingdezhen Ceramic University, Jingdezhen, 333403, China
| | - Hongshun Zheng
- Southwest United Graduate School, Kunming, 650091, China
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming, 650091, China
| | - Youtan Pan
- School of Mechanical and Electrical Engineering, Jingdezhen Ceramic University, Jingdezhen, 333403, China
| | - Zhuoran Lv
- Shanghai, China State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Dongchuan Road 800, Shanghai, 200240, China
| | - Xueyang Tu
- Shanghai, China State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Chong Zheng
- Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, IL, 60115, USA
| | - Tianwei He
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming, 650091, China
| | - Fuqiang Huang
- Shanghai, China State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
- School of Mechanical and Electrical Engineering, Jingdezhen Ceramic University, Jingdezhen, 333403, China
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Dongchuan Road 800, Shanghai, 200240, China
| | - Wujie Dong
- Shanghai, China State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Dongchuan Road 800, Shanghai, 200240, China
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11
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Wei P, Lamont B, He T, Xue W, Wang PC, Song W, Zhang R, Keyhani AB, Zhao S, Lu W, Dong F, Gao R, Yu J, Huang Y, Tang L, Lu K, Ma J, Xiong Z, Chen L, Wan N, Wang B, He W, Teng M, Dian Y, Wang Y, Zeng L, Lin C, Dai M, Zhou Z, Xiao W, Yan Z. Vegetation-fire feedbacks increase subtropical wildfire risk in scrubland and reduce it in forests. J Environ Manage 2024; 351:119726. [PMID: 38052142 DOI: 10.1016/j.jenvman.2023.119726] [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: 11/20/2023] [Accepted: 11/25/2023] [Indexed: 12/07/2023]
Abstract
Climate dictates wildfire activity around the world. But East and Southeast Asia are an apparent exception as fire-activity variation there is unrelated to climatic variables. In subtropical China, fire activity decreased by 80% between 2003 and 2020 amid increased fire risks globally. Here, we assessed the fire regime, vegetation structure, fuel flammability and their interactions across subtropical Hubei, China. We show that tree basal area (TBA) and fuel flammability explained 60% of fire-frequency variance. Fire frequency and fuel flammability, in turn, explained 90% of TBA variance. These results reveal a novel system of scrubland-forest stabilized by vegetation-fire feedbacks. Frequent fires promote the persistence of derelict scrubland through positive vegetation-fire feedbacks; in forest, vegetation-fire feedbacks are negative and suppress fire. Thus, we attribute the decrease in wildfire activity to reforestation programs that concurrently increase forest coverage and foster negative vegetation-fire feedbacks that suppress wildfire.
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Affiliation(s)
- P Wei
- Department of Forestry, College of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.
| | - B Lamont
- Ecology Section, School of Molecular and Life Sciences, Curtin University, Perth, WA 6845, Australia.
| | - T He
- College of Science Engineering & Education, Murdoch University, Murdoch, WA 6150, Australia.
| | - W Xue
- Department of Forestry, College of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.
| | - P C Wang
- Department of Forestry, College of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.
| | - W Song
- College of Agronomy, Northwest Agriculture & Forestry University, Xianyang, 712100, China.
| | - R Zhang
- Department of Forestry, College of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.
| | - A B Keyhani
- Department of Forestry, College of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.
| | - S Zhao
- Department of Forestry, College of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.
| | - W Lu
- Department of Forestry, College of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.
| | - F Dong
- Department of Forestry, College of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.
| | - R Gao
- Department of Forestry, College of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.
| | - J Yu
- Department of Forestry, College of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.
| | - Y Huang
- Department of Forestry, College of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.
| | - L Tang
- Department of Forestry, College of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.
| | - K Lu
- Hubei Forestry Survey and Design Institute, East Lake Science and Technology, District, Wuhan, 430074, Hubei, China.
| | - J Ma
- Hubei Forestry Survey and Design Institute, East Lake Science and Technology, District, Wuhan, 430074, Hubei, China.
| | - Z Xiong
- Department of Forestry, College of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.
| | - L Chen
- Department of Forestry, College of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.
| | - N Wan
- Department of Forestry, College of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.
| | - B Wang
- Department of Forestry, College of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.
| | - W He
- Department of Forestry, College of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.
| | - M Teng
- Department of Forestry, College of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.
| | - Y Dian
- Department of Forestry, College of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.
| | - Y Wang
- Department of Forestry, College of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.
| | - L Zeng
- Key Laboratory of Forest Ecology and Environment, Chinese Academy of Forestry, Beijing, 100091, China.
| | - C Lin
- Hubei Forestry Survey and Design Institute, East Lake Science and Technology, District, Wuhan, 430074, Hubei, China.
| | - M Dai
- Hubei Forestry Survey and Design Institute, East Lake Science and Technology, District, Wuhan, 430074, Hubei, China.
| | - Z Zhou
- Department of Forestry, College of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.
| | - W Xiao
- Key Laboratory of Forest Ecology and Environment, Chinese Academy of Forestry, Beijing, 100091, China.
| | - Z Yan
- Department of Forestry, College of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.
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12
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Iacovelli R, He T, Allen JL, Hackl T, Haslinger K. Genome sequencing and molecular networking analysis of the wild fungus Anthostomella pinea reveal its ability to produce a diverse range of secondary metabolites. Fungal Biol Biotechnol 2024; 11:1. [PMID: 38172933 PMCID: PMC10763133 DOI: 10.1186/s40694-023-00170-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 12/07/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND Filamentous fungi are prolific producers of bioactive molecules and enzymes with important applications in industry. Yet, the vast majority of fungal species remain undiscovered or uncharacterized. Here we focus our attention to a wild fungal isolate that we identified as Anthostomella pinea. The fungus belongs to a complex polyphyletic genus in the family of Xylariaceae, which is known to comprise endophytic and pathogenic fungi that produce a plethora of interesting secondary metabolites. Despite that, Anthostomella is largely understudied and only two species have been fully sequenced and characterized at a genomic level. RESULTS In this work, we used long-read sequencing to obtain the complete 53.7 Mb genome sequence including the full mitochondrial DNA. We performed extensive structural and functional annotation of coding sequences, including genes encoding enzymes with potential applications in biotechnology. Among others, we found that the genome of A. pinea encodes 91 biosynthetic gene clusters, more than 600 CAZymes, and 164 P450s. Furthermore, untargeted metabolomics and molecular networking analysis of the cultivation extracts revealed a rich secondary metabolism, and in particular an abundance of sesquiterpenoids and sesquiterpene lactones. We also identified the polyketide antibiotic xanthoepocin, to which we attribute the anti-Gram-positive effect of the extracts that we observed in antibacterial plate assays. CONCLUSIONS Taken together, our results provide a first glimpse into the potential of Anthstomella pinea to provide new bioactive molecules and biocatalysts and will facilitate future research into these valuable metabolites.
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Affiliation(s)
- R Iacovelli
- Department of Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy, University of Groningen, 9713 AV, Groningen, The Netherlands
| | - T He
- Department of Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy, University of Groningen, 9713 AV, Groningen, The Netherlands
| | - J L Allen
- Department of Biology, Eastern Washington University, Cheney, WA, 99004, USA
| | - T Hackl
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, 9747 AG, Groningen, The Netherlands
| | - K Haslinger
- Department of Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy, University of Groningen, 9713 AV, Groningen, The Netherlands.
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13
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Yang L, He T, Yu Y. Uric acid promotes interleukin-17 expression to cause kidney injury. J Biochem Mol Toxicol 2024; 38:e23550. [PMID: 37815028 DOI: 10.1002/jbt.23550] [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: 02/06/2023] [Revised: 08/02/2023] [Accepted: 09/27/2023] [Indexed: 10/11/2023]
Abstract
Uric acid, an oxidation end-product of purine metabolism, is reportedly to be a risk factor for kidney injury. However, its underlying mechanism is still a mystery. This study aimed to reveal the detailed roles of uric acid in inducing kidney injury and the possible mechanisms. Injection of rats with uric acid significantly increased tubular injury score, and levels of blood urea nitrogen, serum creatinine, and urine kidney injury molecule-1. Uric acid increased the expression of collagen I, alpha-smooth muscle actin, tumor necrosis factor (TNF)-α, interleukin (IL)-1β, and IL-6. Kyoto Encyclopedia of Genes and Genomes analysis result showed the IL-17 signaling pathway as the most significantly enriched pathway involved in hyperuricemia-related kidney injury. Long-term injection of uric acid induced significant production of IL-17 and recruitment of Th17 cells. Treating rats with the anti-IL-17 mAb attenuated uric acid-induced kidney injury, accompanied by the inactivation of nuclear factor-κB (NF-κB). In conclusion, uric acid was confirmed to be a risk factor for kidney injury via inducing IL-17 expression. Neutralization of IL-17 using the specific mAb relieved uric acid-induced kidney injury via inhibition of NF-κB signaling.
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Affiliation(s)
- Lina Yang
- Department of Nephrology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, PR China
| | - Tianwei He
- Department of Nephrology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, PR China
| | - Yanming Yu
- Department of Nephrology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, PR China
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14
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Wang K, Luo Z, Xiao B, Zhou T, Zhao J, Shen C, Li D, Qiu Z, Zhang J, He T, Liu Q. S-scheme Cu 3P/TiO 2 heterojunction for outstanding photocatalytic water splitting. J Colloid Interface Sci 2023; 652:1908-1916. [PMID: 37690298 DOI: 10.1016/j.jcis.2023.08.174] [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: 07/11/2023] [Revised: 08/25/2023] [Accepted: 08/28/2023] [Indexed: 09/12/2023]
Abstract
TiO2 photocatalysts are of great interest in the fields of environmental purification, new energy and so on, because of their non-toxicity, high stability, high redox ability and low cost. However, the photogenerated carriers are severely recombined, which limits the application of TiO2 photocatalysts. Herein, S-scheme Cu3P/TiO2 heterojunction composites were successfully synthesized by a simple and efficient microwave hydrothermal method, and the results show that the hydrogen production rate of Cu3P/TiO2 is 5.83 mmol∙g-1∙h-1 under simulated sunlight irradiation, which is 7.3 and 83.3 times higher than that of pure TiO2 and Cu3P, respectively. This excellent performance is derived from the internal electric field (IEF) and energy band bending generated by the S-scheme heterojunction formed between Cu3P and TiO2. The density functional theory (DFT) calculation indicates that the Cu3P possess smaller work function and more negative conduction band (CB) position than that of TiO2, which is very conducive to greatly improve the H+ reduction ability and hydrogen production performance. This work provides a new idea for the reveal of electron transfer paths and active sites in S-scheme heterojunctions and deepens the mechanism understanding.
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Affiliation(s)
- Kexin Wang
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, China
| | - Zhongge Luo
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, China
| | - Bin Xiao
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, China
| | - Tong Zhou
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, China
| | - Jianhong Zhao
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, China
| | - Congcong Shen
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, China
| | - Dequan Li
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, China
| | - Zhishi Qiu
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, China
| | - Jin Zhang
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, China
| | - Tianwei He
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, China
| | - Qingju Liu
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, China.
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15
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He T, Grender J, Farrell S, Biesbrock AR. Relationship between 1-, 3-, and 6-Month Gingival Bleeding Outcomes. JDR Clin Trans Res 2023:23800844231206387. [PMID: 37919970 DOI: 10.1177/23800844231206387] [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] [Indexed: 11/04/2023] Open
Abstract
INTRODUCTION Results from systematic reviews and meta-analyses show generally consistent antigingivitis effects between 3- and 6-mo observation time points with twice-daily use of stannous fluoride (SnF2) dentifrice. However, the relationship between 1-, 3-, and 6-mo gingivitis responses has not been investigated. METHODS This pooled analysis was conducted to understand the relationship of 1-, 3-, and 6-mo gingival bleeding outcomes. Number of bleeding sites, derived from Löe-Silness Gingival Index (LSGI) or Gingival Bleeding Index, was identified as the primary end point of the analysis for the biological and clinical relevance. Randomized, double-blinded, controlled clinical studies meeting the following predefined selection criteria were identified: 1) published and unpublished gingivitis clinical trials conducted from 1995 to 2022 comparing efficacy of 0.454% SnF2 dentifrices to negative controls (sodium fluoride or sodium monofluorophosphate dentifrice) and 2) studies with a 3-mo assessment and at least a 1- or 6-mo assessment. RESULTS The search resulted in ten 6-mo and fourteen 3-mo studies meeting selection criteria. A mixed-effects model was performed on the pooled data to assess gingival bleeding outcomes across time. The bleeding efficacy significantly increased between months 1 and 3 (P < 0.0001) and plateaued between months 3 and 6 (P = 0.007), supporting the fact that bleeding reduction relative to control established by 1 mo will increase and be maintained through 3 and 6 mo (R2 = 0.857). In addition, gingival bleeding and gingivitis efficacy, as measured by LSGI, were found to be highly correlated (R2 = 0.874). CONCLUSION A clear relationship has been demonstrated between 1-, 3-, and 6-mo gingival bleeding outcomes in gingivitis clinical studies comparing SnF2 dentifrice to negative control dentifrice. These findings have important implications to the dental practice and scientific research as antigingivitis efficacy evaluations can be observed as early as 1 mo and are consistent with those seen at 3 or 6 mo. KNOWLEDGE TRANSFER STATEMENT Outcomes from this investigation indicate that the clinical evaluation of antigingivitis efficacy at 1 mo is predictive of that at 3 and 6 mo, supporting studies of 1-mo duration as a viable method of knowledge acquisition. This more efficient, expedited research design has positive implications for patient care, clinical practice guidelines, protocols, and policies.
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Affiliation(s)
- T He
- The Procter & Gamble Company, Mason, OH, USA
| | - J Grender
- The Procter & Gamble Company, Mason, OH, USA
| | - S Farrell
- The Procter & Gamble Company, Mason, OH, USA
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Khani H, Puente Santiago AR, He T. An Interfacial View of Cation Effects on Electrocatalysis Systems. Angew Chem Int Ed Engl 2023; 62:e202306103. [PMID: 37490318 DOI: 10.1002/anie.202306103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/22/2023] [Accepted: 07/24/2023] [Indexed: 07/26/2023]
Abstract
The identity of alkali metal cations in the electrolyte of electrocatalysis systems has been recently introduced as a crucial factor to tailor the kinetics and Faradaic efficiency of many electrocatalytic reactions. In this Minireview, we have summarized the recent advances in the molecular-level understanding of cation effects on relevant electrocatalytic processes such as hydrogen evolution (HER), oxygen evolution (OER), and CO2 electroreduction (CO2 RR) reactions. The discussion covers the effects of electrolyte cations on interfacial electric fields, structural organization of interfacial water molecules, blocking the catalytic active sites, stabilization or destabilization of intermediates, and interfacial pHs. These cation-induced interfacial phenomena have been reported to impact the performance (activity, selectivity, and stability) of electrochemical reactions collaboratively or independently. We describe that although there is almost a general agreement on the relationship between the size of alkali cations and the activities of HER, OER, and CO2 RR, however, the mechanism by which the performance of these electrocatalytic reactions is influenced by alkali metal cations is still in debate.
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Affiliation(s)
- Hadi Khani
- Texas Materials Institute and Materials Science and Engineering Program, The, University of Texas at Austin, Austin, TX, 78712, USA
| | - Alain R Puente Santiago
- Texas Materials Institute and Materials Science and Engineering Program, The, University of Texas at Austin, Austin, TX, 78712, USA
| | - Tianwei He
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, Yunnan University, Kunming, 650091, China
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He T, Liu W, Shen ZA. [Research advances on application of pancreatic stone protein in the early diagnosis of sepsis]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2023; 39:985-988. [PMID: 37899565 DOI: 10.3760/cma.j.cn501225-20221120-00498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
Sepsis is a severe life-threatening syndrome characterized by an abnormal host response to infection that can rapidly evolve into septic shock and multiple organ failure. Treatment of sepsis depends on early identification and diagnosis as well as adequate and timely anti-infection and multi-organ functional support. In recent years, pancreatic stone protein has been widely studied as a new biomarker for sepsis. Existing evidence shows that compared with the commonly used inflammatory markers in clinical practice, pancreatic stone protein has higher sensitivity and specificity in the diagnosis of sepsis. It enables the early diagnosis of sepsis and assessment of the severity of septic patients to a certain extent. This article reviews the characteristics, biological functions, diagnostic features, and clinical application of pancreatic stone protein.
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Affiliation(s)
- T He
- Department of Burns and Plastic Surgery, the Fourth Medical Center of PLA General Hospital, Beijing 100048, China
| | - W Liu
- Department of Burns and Plastic Surgery, the Fourth Medical Center of PLA General Hospital, Beijing 100048, China
| | - Z A Shen
- Department of Burns and Plastic Surgery, the Fourth Medical Center of PLA General Hospital, Beijing 100048, China
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18
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He T, Kong Y, Zhou T, Zhang J, Santiago ARP, Du A, Luque R, Liu Q. Rational Modulation of Single Atom Coordination Microenvironments in a BCN Monolayer for Multifunctional Electrocatalysis. Small 2023; 19:e2302429. [PMID: 37433972 DOI: 10.1002/smll.202302429] [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: 03/22/2023] [Revised: 06/21/2023] [Indexed: 07/13/2023]
Abstract
Single-atom (SA) catalysts (SACs) have demonstrated outstanding catalytic performances toward plenty of relevant electrochemical reactions. Nevertheless, controlling the coordination microenvironment of catalytically active SAs to further enhance their catalytic oerformences has remained elusive up to now. Herein, a systematic investigation of 20 transition metal atoms that are coordinated with 20 different microenvironments in a boroncarbon-nitride monolayer (BCN) is conducted using high-throughput density functional theory calculations. The experimentally synthesized ternary BCN monolayer contains carbon, nitrogen, and boron atoms in its 2D network, thus providing a lot of new coordination environments than those of the current Cx Ny nanoplatforms. By exploring the structural/electrochemical stability, catalytic activity, selectivity, and electronic properties of 400 (20 × 20) TM-BCN moieties, it is discovered that specific SA coordination environments can achieve superior stability and selectivity for different electrocatalytic reactions. Moreover, a universal descriptor to accelerate the experimental process toward the synthesis of BCN-SACs is reported. These findings not only provide useful guidance for the synthesis of efficient multifunctional BCN-SACs but also will immediately benefit researchers by levering up their understanding of the mechanistic effects of SA coordination microenvironments on electrocatalytic reactions.
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Affiliation(s)
- Tianwei He
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming, 650091, China
| | - Youchao Kong
- Department of Physics and Electronic Engineering, Yancheng Teachers University, Yancheng, 224002, China
| | - Tong Zhou
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming, 650091, China
| | - Jin Zhang
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming, 650091, China
| | - Alain R Puente Santiago
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Aijun Du
- School of Chemistry and Physics and Centre for Material Science, Faculty of Science, Queensland University of Technology, Gardens Point Campus, Brisbane, QLD, 4001, Australia
| | - Rafael Luque
- Department of Organic Chemistry University of Cordoba Campus de Rabanales Edificio Marie Curie (C-3), Ctra Nnal IV-A, Km 396, Cordoba, E14014, Spain
- Peoples Friendship University of Russia (RUDN University) 6 Miklukho-Maklaya str, Moscow, 117198, Russia
| | - Qingju Liu
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming, 650091, China
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Di J, Chen Z, Wang Z, He T, Wu D, Weng C, Deng J, Mai L, Wang K, He L, Rong L. Cartilage tissue from sites of weight bearing in patients with osteoarthritis exhibits a differential phenotype with distinct chondrocytes subests. RMD Open 2023; 9:e003255. [PMID: 37848267 PMCID: PMC10582868 DOI: 10.1136/rmdopen-2023-003255] [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: 04/22/2023] [Accepted: 09/12/2023] [Indexed: 10/19/2023] Open
Abstract
OBJECTIVE Osteoarthritis (OA) is a degenerative joint disease associated with excessive mechanical loading. The aim here was to elucidate whether different subpopulations of chondrocytes exhibit distinct phenotypes in response to variations in loading conditions. Furthermore, we seek to investigate the transcriptional switches and cell crosstalk among these chondrocytes subsets. METHODS Proteomic analysis was performed on cartilage tissues isolated from weight-bearing and non-weight-bearing regions. Additionally, single-cell RNA sequencing was employed to identify different subsets of chondrocytes. For disease-specific cells, in vitro differentiation induction was performed, and their presence was confirmed in human cartilage tissue sections using immunofluorescence. The molecular mechanisms underlying transcriptional changes in these cells were analysed through whole-transcriptome sequencing. RESULTS In the weight-bearing regions of OA cartilage tissue, a subpopulation of chondrocytes called OA hypertrophic chondrocytes (OAHCs) expressing the marker genes SLC39A14 and COL10A1 are present. These cells exhibit unique characteristics of active cellular interactions mediated by the TGFβ signalling pathway and express OA phenotypes, distinct from hypertrophic chondrocytes in healthy cartilage. OAHCs are mainly distributed in the superficial region of damaged cartilage in human OA tissue, and on TGFβ stimulation, exhibit activation of transcriptional expression of iron metabolism-related genes, along with enrichment of associated pathways. CONCLUSION This study identified and validated the existence of a subset of OAHCs in the weight-bearing area of OA cartilage tissue. Our findings provide a theoretical basis for targeting OAHCs to slow down the progression of OA and facilitate the repair of cartilage injuries.
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Affiliation(s)
- Jiawei Di
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery, Guangzhou, Guangdong, China
- Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery, Guangzhou, Guangdong, China
| | - Zihao Chen
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery, Guangzhou, Guangdong, China
- Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery, Guangzhou, Guangdong, China
| | - Zhe Wang
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery, Guangzhou, Guangdong, China
- Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery, Guangzhou, Guangdong, China
- Department of Joint Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Tianwei He
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery, Guangzhou, Guangdong, China
- Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery, Guangzhou, Guangdong, China
| | - Depeng Wu
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery, Guangzhou, Guangdong, China
- Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery, Guangzhou, Guangdong, China
| | - Chuanggui Weng
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery, Guangzhou, Guangdong, China
- Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery, Guangzhou, Guangdong, China
| | - Jiajun Deng
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery, Guangzhou, Guangdong, China
- Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery, Guangzhou, Guangdong, China
| | - Lang Mai
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery, Guangzhou, Guangdong, China
- Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery, Guangzhou, Guangdong, China
| | - Kun Wang
- Department of Joint Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Lei He
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery, Guangzhou, Guangdong, China
- Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery, Guangzhou, Guangdong, China
| | - Limin Rong
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery, Guangzhou, Guangdong, China
- Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery, Guangzhou, Guangdong, China
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Han LQ, Shen MY, Tang XY, Wan PX, Lao LD, He T. [Best evidence summary of prevention strategies for pressure injury in adult hospitalized burn patients]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2023; 39:867-873. [PMID: 37805803 DOI: 10.3760/cma.j.cn501225-20230328-00101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/09/2023]
Abstract
Objective: To summarize the best evidence of prevention strategies for pressure injury in adult hospitalized burn patients. Methods: A bibliometric approach was used. Systematic searches were carried out to retrieve the published evidence of prevention strategies for pressure injury in adult hospitalized burn patients in the official websites of relevant academic organizations such as International Society for Burn injury, American Burn Association, and Japanese Dermatology Association, National Pressure Injury Advisory Panel, European Pressure Injury Advisory Panel, Pan Pacific Pressure Injury Alliance International Guidelines Website, foreign language databases such as UpToDate, BMJ Best Practice, MedSci, Joanna Briggs Institute Evidence-Based Practice Database, Cochrane Library, Web of Science, Embase, and PubMed, and Chinese databases such as China Biology Medicine disc, China National Knowledge Infrastructure, Wanfang Database, and China Clinical Guidelines Library. The literature types include clinical decision-making, evidence summary, guidelines, systematic review, and expert consensus. The search time was till February 21st, 2023. Two researchers independently screened the literature and evaluated the quality, and other researchers extracted and graded the evidence according to the topic. Results: A total of 10 papers were included, including 6 evidence summaries, 3 guidelines, and 1 expert consensus, all with high literature quality. After extracting evidence and classifying, 27 pieces of best evidences were summarized from three aspects, including prevention training and supervision, risk assessment, and prevention measures of pressure injury. Conclusions: A total of 27 pieces of best evidences of prevention strategies for pressure injury in adult hospitalized burn patients were summarized from 3 aspects. Medical workers can follow the best evidence and give personalized prevention strategies according to the specific condition of adult hospitalized burn patients to reduce the incidence of pressure injury.
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Affiliation(s)
- L Q Han
- Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310011, China
| | - M Y Shen
- Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310011, China
| | - X Y Tang
- School of Nursing, Zhejiang University,Hangzhou 310058,China
| | - P X Wan
- Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310011, China
| | - L D Lao
- Wound Specialist Nursing Clinic, Shulan (Hangzhou) Hospital, Hangzhou 310022, China
| | - T He
- Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310011, China
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Han F, Yang XK, He T, Wang LX, Zhang N, Han JT. [Curative effects of medial plantar free flap in reconstructing electric burn wound and scar contracture in the palm]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2023; 39:820-825. [PMID: 37805797 DOI: 10.3760/cma.j.cn501225-20230601-00197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 10/09/2023]
Abstract
Objective: To explore the curative effects of medial plantar free flap in reconstructing electric burn wound and scar contracture in the palm. Methods: A retrospective observational study was conducted. From January 2020 to January 2023, 6 patients with electric burn wounds or scar contracture in the palm who met the inclusion criteria were admitted to the First Affiliated Hospital of Air Force Medical University, including 5 males and 1 female, aged 35 to 55 years. The wound area was 5.0 cm×3.0 cm-8.0 cm×7.0 cm after the debridement of electric burn wounds or resection of scar in the palm. The medial plantar free flap anastomosed with cutaneous nerve was used for wound reconstruction, with flap area of 5.5 cm×3.5 cm-8.5 cm×7.5 cm. The wound in the donor site was repaired with transplantation of abdominal full-thickness skin graft. After surgery, the survival of flaps and skin grafts were observed, the shape and texture of flap and the recovery of donor site of flap were observed, and the holding function of the affected hand was assessed. At the last follow-up, the two-point discrimination distance of flap was measured, the sensory recovery of flap was evaluated with the trial standard for the evaluation of the functions of the upper limbs of the Hand Surgery Society of the Chinese Medical Association, and the function recovery of flap was evaluated by post-surgery flap function evaluation scale. Results: After surgery, 5 flaps survived well, while the distal part of 1 flap was partially necrotic, which was repaired by medium-thickness skin graft from lateral thigh after debridement. All the skin grafts at the donor sites survived well. During follow-up of 3 to 24 months, the flap was not bloated, the texture and color were good, the match with the surrounding tissue was high, with no obvious scar contracture occurred at the donor site. The affected hand had good holding function. At the last follow-up, the two-point discrimination distance of flap was 6-8 mm, the flap sensation recovery was as follows: 5 flaps recovered to grade S3+, 1 flap recovered to grade S3, and the functional evaluation of flaps was excellent in 5 cases and good in 1 case. The patients basically returned to normal life and work. Conclusions: The medial plantar free flap with cutaneous nerve anastomosis has many advantages, such as high matching degree of appearance, good sensory recovery, and holding function of the affected hand. It is an ideal choice for the reconstruction of the electric burn wound and scar contracture in the palm.
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Affiliation(s)
- F Han
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - X K Yang
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - T He
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - L X Wang
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - N Zhang
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - J T Han
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
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Sun H, Chen M, Xiao B, Zhou T, Humayun M, Li L, Lu Q, He T, Zhang J, Bououdina M, Wang C, Liu Q. Interface Engineering Induced Electron Redistribution at Pt Ns /NiTe-Ns Interfaces for Promoting pH-Universal and Chloride-Tolerant Hydrogen Evolution Reaction. Small 2023:e2303974. [PMID: 37590380 DOI: 10.1002/smll.202303974] [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] [Grants] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 07/12/2023] [Indexed: 08/19/2023]
Abstract
Exploring highly efficient hydrogen evolution reaction (HER) electrocatalysts for large-scale water electrolysis in the full potential of hydrogen (pH) range is highly desirable, but it remains a significant challenge. Herein, a simple pathway is proposed to synthesize a hybrid electrocatalyst by decorating small metallic platinum (Pt) nanosheets on a large nickel telluride nanosheet (termed as PtNs /NiTe-Ns). The as-prepared PtNs /NiTe-Ns catalyst only requires overpotentials of 72, 162, and 65 mV to reach a high current density of 200 mA cm-2 in alkaline, neutral and acidic conditions, respectively. Theoretical calculations reveal that the combination of metallic Pt and NiTe-Ns subtly modulates the electronic redistribution at their interface, improves the charge-transfer kinetics, and enhances the performance of Ni active sites. The synergy between the Pt site and activated Ni site near the interface in PtNs /NiTe-Ns promotes the sluggish water-dissociation kinetics and optimizes the subsequent oxyhydrogen/hydrogen intermediates (OH*/H*) adsorption, accelerating the HER process. Additionally, the superhydrophilicity and superaerophobicity of PtNs /NiTe-Ns facilitate the mass transfer process and ensure the rapid desorption of generated bubbles, significantly enhancing overall alkaline water/saline water/seawater electrolysis catalytic activity and stability.
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Affiliation(s)
- Huachuan Sun
- National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory for Micro/Nano Materials & Technology, School of Materials and Energy, Yunnan University, Kunming, 650091, China
| | - Mingpeng Chen
- National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory for Micro/Nano Materials & Technology, School of Materials and Energy, Yunnan University, Kunming, 650091, China
| | - Bin Xiao
- National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory for Micro/Nano Materials & Technology, School of Materials and Energy, Yunnan University, Kunming, 650091, China
| | - Tong Zhou
- National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory for Micro/Nano Materials & Technology, School of Materials and Energy, Yunnan University, Kunming, 650091, China
| | - Muhammad Humayun
- Energy, Water, and Environment Lab, College of Humanities and Sciences, Prince Sultan University, Riyadh, 11586, Saudi Arabia
| | - Linfeng Li
- School of Integrated Circuits, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Qingjie Lu
- National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory for Micro/Nano Materials & Technology, School of Materials and Energy, Yunnan University, Kunming, 650091, China
| | - Tianwei He
- National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory for Micro/Nano Materials & Technology, School of Materials and Energy, Yunnan University, Kunming, 650091, China
| | - Jin Zhang
- National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory for Micro/Nano Materials & Technology, School of Materials and Energy, Yunnan University, Kunming, 650091, China
| | - Mohammed Bououdina
- Energy, Water, and Environment Lab, College of Humanities and Sciences, Prince Sultan University, Riyadh, 11586, Saudi Arabia
| | - Chundong Wang
- School of Integrated Circuits, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Qingju Liu
- National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory for Micro/Nano Materials & Technology, School of Materials and Energy, Yunnan University, Kunming, 650091, China
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Yang XK, Zhang DL, He T, Zhang Y, Xu ZG, Wei JT, Li J, Liu MD. [Clinical experience of free superficial temporal fascia flap/anterolateral femoral fascial flap combined with skin grafting in repairing deep tissue defects of special parts of extremities]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2023; 39:507-511. [PMID: 37805764 DOI: 10.3760/cma.j.cn501225-20220915-00407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/09/2023]
Abstract
The deep tissue defects of extremities are prone to cause the exposure of tendons, blood vessels, nerves, and bones, which are commonly repaired with free flaps in clinical practice. However, for special parts such as fingers, toes, posterior ankles, anterior tibias, and dorsum of feet, the appearances are usually bulky after being repaired with free flaps and need lipectomy operations, which bring great physiological, psychological, and economic burden to patients. As the fascia flap is soft and thin with reliable blood supply and strong anti-infection ability, the free fascia flap combined with skin grafting offers some advantages in repairing the above-mentioned wounds. However, its clinical application is severely limited due to the complexity of surgical operation and the difficulty in observing blood supply after operation. In recent years, our team has carried out a lot of work and accumulated rich experience in repairing deep tissue defects of special parts of extremities with free superficial temporal fascia flap/anterolateral femoral fascial flap combined with skin grafting. From the clinical perspective, this paper mainly introduces the anatomy and harvesting method of free superficial temporal fascia flap/anterolateral femoral fascial flap, as well as the advantages, difficulties, and precautions of clinical application, for reference of peers.
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Affiliation(s)
- X K Yang
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - D L Zhang
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - T He
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - Y Zhang
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - Z G Xu
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - J T Wei
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - J Li
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - M D Liu
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
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Zhang Q, Ke L, Huang S, Yang Y, He T, Sun H, Wu Z, Zhang X, Zhang H, Lv W, Hu J. 98P Adjuvant aumolertinib in resected EGFR-mutated non-small cell lung cancer: A multiple-center real-world experience. J Thorac Oncol 2023. [DOI: 10.1016/s1556-0864(23)00353-2] [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: 04/04/2023]
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Voigt AL, Dardari R, Lara NLM, He T, Steele H, Dufour A, Orwig KE, Dobrinski I. Multiomics approach to profiling Sertoli cell maturation during development of the spermatogonial stem cell niche. Mol Hum Reprod 2023; 29:gaad004. [PMID: 36688722 PMCID: PMC9976880 DOI: 10.1093/molehr/gaad004] [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: 08/25/2022] [Revised: 11/10/2022] [Indexed: 01/24/2023] Open
Abstract
Spermatogonial stem cells (SSCs) are the basis of spermatogenesis, a complex process supported by a specialized microenvironment, called the SSC niche. Postnatal development of SSCs is characterized by distinct metabolic transitions from prepubertal to adult stages. An understanding of the niche factors that regulate these maturational events is critical for the clinical application of SSCs in fertility preservation. To investigate the niche maturation events that take place during SSC maturation, we combined different '-omics' technologies. Serial single cell RNA sequencing analysis revealed changes in the transcriptomes indicative of niche maturation that was initiated at 11 years of age in humans and at 8 weeks of age in pigs, as evident by Monocle analysis of Sertoli cells and peritubular myoid cell (PMC) development in humans and Sertoli cell analysis in pigs. Morphological niche maturation was associated with lipid droplet accumulation, a characteristic that was conserved between species. Lipidomic profiling revealed an increase in triglycerides and a decrease in sphingolipids with Sertoli cell maturation in the pig model. Quantitative (phospho-) proteomics analysis detected the activation of distinct pathways with porcine Sertoli cell maturation. We show here that the main aspects of niche maturation coincide with the morphological maturation of SSCs, which is followed by their metabolic maturation. The main aspects are also conserved between the species and can be predicted by changes in the niche lipidome. Overall, this knowledge is pivotal to establishing cell/tissue-based biomarkers that could gauge stem cell maturation to facilitate laboratory techniques that allow for SSC transplantation for restoration of fertility.
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Affiliation(s)
- A L Voigt
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Canada
- Faculty of Veterinary Medicine, University of Calgary, Calgary, Canada
| | - R Dardari
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Canada
- Faculty of Veterinary Medicine, University of Calgary, Calgary, Canada
| | - N L M Lara
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Canada
- Faculty of Veterinary Medicine, University of Calgary, Calgary, Canada
| | - T He
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Canada
- Faculty of Veterinary Medicine, University of Calgary, Calgary, Canada
| | - H Steele
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Canada
- Faculty of Veterinary Medicine, University of Calgary, Calgary, Canada
| | - A Dufour
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Canada
- Department of Physiology and Pharmacology, University of Calgary, Calgary, Canada
| | - K E Orwig
- Department of Obstetrics, Gynecology and Reproductive Sciences, Magee-Women’s Research Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - I Dobrinski
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Canada
- Faculty of Veterinary Medicine, University of Calgary, Calgary, Canada
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Gao H, Di J, Yin M, He T, Wu D, Chen Z, Li S, He L, Rong L. Identification of chondrocyte subpopulations in osteoarthritis using single-cell sequencing analysis. Gene 2023; 852:147063. [PMID: 36427677 DOI: 10.1016/j.gene.2022.147063] [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: 01/03/2022] [Revised: 09/20/2022] [Accepted: 11/16/2022] [Indexed: 11/23/2022]
Abstract
Osteoarthritis (OA) is the most common joint disease. Previous studies were focused on general functions of chondrocyte population in OA without elucidating the existence of chondrocyte subpopulations. To investigate the heterogeneity of chondrocyte, here we conducted detailed analysis on the single-cell sequencing data of cartilage cells from OA patients. After quality control, unsupervised K-mean clustering identified seven different subpopulations of chondrocytes in OA. Those subpopulations of chondrocytes were nominated based on Gene Ontology and Kyoto Encyclopedia of Genes and Genomes analysis: stress-metabolizing chondrocytes (cluster 1), rhythmic chondrocytes (cluster 2), apoptotic chondrocytes (cluster 3), matrix-synthesis-related chondrocytes (cluster 4), developmental chondrocytes (cluster 5), protein-synthesis-related chondrocytes (cluster 6 and 8), and osteogenesis chondrocytes (cluster 7). We further noticed that the stress-metabolizing chondrocytes (cluster 1) were dominant in early stages of cartilage damage with increased metabolic levels inhibiting cartilage tissue degeneration, while the matrix-synthesis-related chondrocytes (cluster 4) were mainly existed in the late stages of cartilage damage which reorganized collagen fibers with type III collagen disrupting the extracellular matrix and further cartilage damages. Besides, we identified genes NFKBIA and TUBB2B as potential markers for the stress-metabolizing chondrocytes and the matrix synthesis related chondrocytes, respectively. Our study identifies different chondrocyte subpopulations in OA, and highlights the potential different functions of chondrocyte subpopulations in the early versus late stages of cartilage damage.
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Affiliation(s)
- Han Gao
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-sen University, 510630 Guangzhou, China; Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery, 510630 Guangzhou, China; Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery, 510630 Guangzhou, China
| | - Jiawei Di
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-sen University, 510630 Guangzhou, China; Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery, 510630 Guangzhou, China; Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery, 510630 Guangzhou, China
| | - Mingyu Yin
- Department of Rehabilitation Medicine, The Third Affiliated Hospital of Sun Yat-sen University, 510630 Guangzhou, China
| | - Tianwei He
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-sen University, 510630 Guangzhou, China; Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery, 510630 Guangzhou, China; Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery, 510630 Guangzhou, China
| | - Depeng Wu
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-sen University, 510630 Guangzhou, China; Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery, 510630 Guangzhou, China; Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery, 510630 Guangzhou, China
| | - Zihao Chen
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-sen University, 510630 Guangzhou, China; Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery, 510630 Guangzhou, China; Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery, 510630 Guangzhou, China
| | - Shangfu Li
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-sen University, 510630 Guangzhou, China; Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery, 510630 Guangzhou, China; Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery, 510630 Guangzhou, China
| | - Lei He
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-sen University, 510630 Guangzhou, China; Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery, 510630 Guangzhou, China; Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery, 510630 Guangzhou, China.
| | - Limin Rong
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-sen University, 510630 Guangzhou, China; Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery, 510630 Guangzhou, China; Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery, 510630 Guangzhou, China.
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Mehta S, Boyer TL, Akhtar S, He T, Zhang C, Vedadghavami A, Bajpayee AG. Sustained intra-cartilage delivery of interleukin-1 receptor antagonist using cationic peptide and protein-based carriers. Osteoarthritis Cartilage 2023; 31:780-792. [PMID: 36739939 PMCID: PMC10392024 DOI: 10.1016/j.joca.2023.01.573] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 12/20/2022] [Accepted: 01/17/2023] [Indexed: 02/07/2023]
Abstract
OBJECTIVE Blocking the interleukin-1 (IL-1) catabolic cascade following joint trauma can be achieved using its receptor antagonist, IL-1Ra. However, its clinical translation for osteoarthritis therapy has been unsuccessful due to its rapid joint clearance and lack of targeting and penetration into deep cartilage layers at therapeutic concentrations. Here, we target the high negative charge of cartilage aggrecan-glycosaminoglycans (GAGs) by attaching cationic carriers to IL-1Ra. IL-1Ra was conjugated to the cartilage targeting glycoprotein, Avidin, and a short length optimally charged cationic peptide carrier (CPC+14). It is hypothesized that electro-diffusive transport and binding properties of IL-1Ra-Avidin and IL-1Ra-CPC+14 will create intra-cartilage depots of IL-1Ra, resulting in long-term suppression of IL-1 catabolism with only a single administration. DESIGN IL-1Ra was conjugated to Avidin or CPC+14 using site specific maleimide linkers, and confirmed using gel electrophoresis, high-performance liquid chromatography (HPLC), and mass spectrometry. Intra-cartilage transport and retention of conjugates was compared with native IL-1Ra. Attenuation of IL-1 catabolic signaling with one-time dose of IL-1Ra-CPC+14 and IL-1Ra-Avidin was assessed over 16 days using IL-1α challenged bovine cartilage and compared with unmodified IL-1Ra. RESULTS Positively charged IL-1Ra penetrated through the full-thickness of cartilage, creating a drug depot. A single dose of unmodified IL-1Ra was not sufficient to attenuate IL-1-induced cartilage deterioration over 16 days. However, when delivered using Avidin, and to a greater extent CPC+14, IL-1Ra significantly suppressed cytokine induced GAG loss and nitrite release while improving cell metabolism and viability. CONCLUSION Charge-based cartilage targeting drug delivery systems hold promise as they can enable long-term therapeutic benefit with only a single dose.
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Affiliation(s)
- S Mehta
- Department of Bioengineering, Northeastern University, Boston, MA, USA.
| | - T L Boyer
- Department of Bioengineering, Northeastern University, Boston, MA, USA.
| | - S Akhtar
- Department of Biochemistry, Northeastern University, Boston, MA, USA.
| | - T He
- Department of Bioengineering, Northeastern University, Boston, MA, USA.
| | - C Zhang
- Department of Bioengineering, Northeastern University, Boston, MA, USA.
| | - A Vedadghavami
- Department of Bioengineering, Northeastern University, Boston, MA, USA.
| | - A G Bajpayee
- Department of Bioengineering, Northeastern University, Boston, MA, USA; Department of Mechanical Engineering, Northeastern University, Boston, MA, USA.
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He T, Zhang C, Colombani T, Bencherif SA, Porter RM, Bajpayee AG. Intra-articular kinetics of a cartilage targeting cationic PEGylated protein for applications in drug delivery. Osteoarthritis Cartilage 2023; 31:187-198. [PMID: 36241136 PMCID: PMC9892226 DOI: 10.1016/j.joca.2022.09.010] [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: 03/04/2022] [Revised: 08/22/2022] [Accepted: 09/29/2022] [Indexed: 11/06/2022]
Abstract
OBJECTIVES Cartilage targeting cationic glycoprotein Avidin was PEGylated to synthesize a multi-arm Avidin (mAv) nano-construct with high drug loading content. Here we investigate mAv biodistribution and kinetics over a 7-day period following intra-articular (IA) administration in rat knee joints. METHODS Labeled mAv was injected into healthy rat knees, and joint tissues (articular cartilage, menisci, ligaments, tendons, fat pad) were harvested following sacrifice at 6 h, 1, 4 and 7 days. Its IA biodistribution and retention were measured using fluorescence microscopy. Tissue localization was compared in young vs old rats by immunohistochemistry. mAv chondrotoxicity and immune response were evaluated to determine safe carrier dose limits. RESULTS mAv penetrated through the full thickness of rat cartilage and other joint tissues within 6 h, remaining detectable within most joint tissues over 7 days. Intra-tissue uptake correlated strongly with tissue GAG concentration, confirming the dominant role of electrostatic interactions between positively charged mAv and the negatively charged aggrecan proteoglycans. mAv was uptaken by chondrocytes and also penetrated the osteocyte lacuno-canalicular system of peri-articular bone in both young and old rats. mAv did not cause cytotoxicity at concentrations up to 300 μM but elicited a dose dependent immunogenic response. CONCLUSIONS mAv's ability to target a variety of joint tissues, chondrocytes, and peri-articular osteocytes without sequestration in synovial fluid makes it a versatile carrier for delivering a wide range of drugs for treating a broad class of musculoskeletal diseases. Drugs can be conjugated using simple aqueous based avidin-biotin reaction, supporting its clinical prospects.
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Affiliation(s)
- T He
- Department of Bioengineering, Northeastern University, Boston, MA, 02115, USA.
| | - C Zhang
- Department of Bioengineering, Northeastern University, Boston, MA, 02115, USA.
| | - T Colombani
- Department of Chemical Engineering, Northeastern University, Boston, MA, 02115, USA.
| | - S A Bencherif
- Department of Bioengineering, Northeastern University, Boston, MA, 02115, USA; Department of Chemical Engineering, Northeastern University, Boston, MA, 02115, USA.
| | - R M Porter
- Department of Internal Medicine, University of Arkansas for Medical Sciences, Little Rock, AR, 72205, USA; Department of Orthopaedic Surgery, University of Arkansas for Medical Sciences, Little Rock, AR, 72205, USA.
| | - A G Bajpayee
- Department of Bioengineering, Northeastern University, Boston, MA, 02115, USA; Department of Mechanical Engineering, Northeastern University, Boston, MA, 02115, USA.
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He T, Yuan L, Yang XL. [Research advances on the role of hemoglobin spray in chronic wounds]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2022; 38:892-896. [PMID: 36177598 DOI: 10.3760/cma.j.cn501120-20210727-00261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Oxygen plays an important role in the process of wound healing. Researches have shown that more than 97% of chronic wounds are in a state of hypoxia, which is one of the key factors resulting in refractory wounds. Local oxygen therapy is a treatment method that can directly provide oxygen to wounds without relying on the damaged vascular system. It can effectively promote chronic wounds healing by transmitting sufficient oxygen to wounds through specific devices or preparations. Hemoglobin spray is a new form of local oxygen therapy, which has the advantages of good effect, simple operation, and low cost. This article reviews the development, component, safety, oxygen supply principle, and application methods of hemoglobin spray and its effects in the treatment of chronic wounds, so as to provide a new direction for the treatment of chronic wounds.
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Affiliation(s)
- T He
- West China School of Nursing, Sichuan University, Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu 610041, China
| | - L Yuan
- West China School of Nursing, Sichuan University, Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu 610041, China
| | - X L Yang
- West China School of Nursing, Sichuan University, Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu 610041, China
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He T, Zou TT, Sun L, Lei AK, Xu L. [Research progress of microvascular invasion in hepatocellular carcinoma]. Zhonghua Gan Zang Bing Za Zhi 2022; 30:899-904. [PMID: 36207949 DOI: 10.3760/cma.j.cn501113-20210428-00211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Hepatocellular carcinoma (HCC) is a kind of highly aggressive tumor of the digestive system. Several studies have confirmed that microvascular invasion (MVI) is an independent risk factor for early recurrence and poor prognosis of HCC after surgery. Currently, pathological examination is the gold standard for diagnosing MVI. This paper summarizes concept, prognosis, preoperative prediction and treatment plan based on literature review of MVI in HCC.
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Affiliation(s)
- T He
- Department of Hepatobiliary Surgery, Second People's Hospital of Chengdu,Chengdu 610017, China
| | - T T Zou
- The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - L Sun
- Department of Hepatobiliary Surgery, Second People's Hospital of Chengdu,Chengdu 610017, China
| | - A K Lei
- Department of Hepatobiliary Surgery, Second People's Hospital of Chengdu,Chengdu 610017, China
| | - Lin Xu
- Department of Hepatobiliary Surgery, Second People's Hospital of Chengdu,Chengdu 610017, China
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Chen Y, Hao C, Chen W, Cheng W, Li P, Shen J, Tong T, Yan S, Huang S, He T, Huang Z, Meng X. Anti-depressant effects of acupuncture: The insights from NLRP3 mediated pyroptosis and inflammation. Neurosci Lett 2022; 785:136787. [PMID: 35820551 DOI: 10.1016/j.neulet.2022.136787] [Citation(s) in RCA: 8] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/13/2022] [Accepted: 07/07/2022] [Indexed: 11/19/2022]
Abstract
The NLRP3-mediated pyroptosis, which could affect inflammation response, plays a key role in the development of depression. Acupuncture has been shown to be an effective treatment for depression. In this study, we aimed to determine whether acupuncture could confer antidepressant activity via decreasing NLRP3-mediated pyroptosis by reducing inflammation. Here, depression model of rats was induced by chronic unpredictable mild stress (CUMS) for 4 weeks. Acupuncture group was subjected to acupuncture at the Shangxing (GV23) and Fengfu (GV16) acupoints for 20 min every other day (a total of 14 times). Fluoxetine group was administered with fluoxetine (2.1 mg/kg with the concentration of 0.21 mg/mL) by oral gavage (1 mL/100 g) once a day for 28 days. Rats' depression-like phenotypes were reflected with behavioral tests and biological detection methods. Results showed that acupuncture significantly improved the depression-like behavior of CUMS rat, suppressed the expressions of NLRP3, ASC, caspase-1, GSDMD, IL-1β, IL-18, HMGB1, IFN-γ, IL-6 and TNF-α in the serum and hippocampus, restored the %area of microglia, astrocytes and neuronal cells in the hippocampus. These indicate that acupuncture can prevent CUMS-induced depression-like behaviors by reducing NLRP3-mediated pyroptosis and inflammation.
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Affiliation(s)
- Yiping Chen
- Second Clinical College, Shanxi University of Traditional Chinese Medicine, Taiyuan, Shanxi, China; Department of Traditional Chinese Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Chongyao Hao
- Second Clinical College, Shanxi University of Traditional Chinese Medicine, Taiyuan, Shanxi, China
| | - Wenjie Chen
- Department of Traditional Chinese Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Wenjing Cheng
- Department of Traditional Chinese Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Peng Li
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Junliang Shen
- Department of Traditional Chinese Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Tao Tong
- Second Clinical College, Shanxi University of Traditional Chinese Medicine, Taiyuan, Shanxi, China
| | - Simin Yan
- Department of Traditional Chinese Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Shuqiong Huang
- Department of Traditional Chinese Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Tianwei He
- Department of Traditional Chinese Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Zhiyong Huang
- Department of Traditional Chinese Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Xianjun Meng
- Department of Traditional Chinese Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, China; Shenzhen Research Institute of Xiamen University, Shenzhen, China.
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He T, Woudstra F, Panzer F, Haandrikman A, Verkade HJ, van Lee L. Goat Milk Based Infant Formula in Newborns: A Double-Blind Randomized Controlled Trial on Growth and Safety. J Pediatr Gastroenterol Nutr 2022; 75:215-220. [PMID: 35666856 PMCID: PMC9278712 DOI: 10.1097/mpg.0000000000003493] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 04/19/2022] [Indexed: 12/10/2022]
Abstract
OBJECTIVES We aimed to determine the growth and safety parameters in newborns fed a goat milk based infant formula (GMF) using a randomized double-blind trial, in which a cow milk formula (CMF) served as a control and a breast fed (BF) group as a reference. METHODS Healthy term infants (n = 218) aged up to 14 days were recruited from 25 European study centers and randomized to GMF or CMF. Weight, length, head circumference were measured at baseline, and at 14, 28, 56, 84, and 112 days at the study clinics. Adverse events were recorded and stool characteristics, reflux, fussiness, colic, and flatulence were self-reported by parents in 3-day diaries. Anthropometric measurements were transformed to WHO standardized age- and sex-adjusted z -scores. Analyses of covariance and linear mixed modeling were used to statistically analyze growth, while adjusting for potential confounders when studying the breast-fed group (n = 86). RESULTS Comparing the GMF to the CMF group, weight gain [mean difference 227.8 g (95% CI -16.6 to -439.0)] and z-scores for anthropometric measurements were similar after 112 days intervention. Infant formula groups showed greater mean (SD) weight z-scores than the BF group from 84 days onwards (GMF: 0.28 (0.84), CMF: 0.12 (0.88), BF -0.19 (1.02), P < 0.05), whereas length and head circumference z-scores were similar. Incidences of serious adverse events and reflux, fussiness, colic, and flatulence were similar among the three groups. CONCLUSION Our data demonstrate that GMF provides adequate growth, has a good tolerability, and is safe to use in infants.
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Affiliation(s)
- T He
- From the Ausnutria B.V., Zwolle, The Netherlands
| | - F Woudstra
- From the Ausnutria B.V., Zwolle, The Netherlands
| | - F Panzer
- the Private Office for Paediatrics and Adolescent Medicine, Mannheim, Germany
| | | | - H J Verkade
- the Pediatric Gastroenterology & Hepatology, Dept. Pediatrics, Beatrix Children's Hospital/ University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - L van Lee
- From the Ausnutria B.V., Zwolle, The Netherlands
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He T, Santiago ARP, Kong Y, Ahsan MA, Luque R, Du A, Pan H. Atomically Dispersed Heteronuclear Dual-Atom Catalysts: A New Rising Star in Atomic Catalysis. Small 2022; 18:e2106091. [PMID: 34897990 DOI: 10.1002/smll.202106091] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/11/2021] [Indexed: 06/14/2023]
Abstract
Atomic catalysts (AC) are gaining extensive research interest as the most active new frontier in heterogeneous catalysis due to their unique electronic structures and maximum atom-utilization efficiencies. Among all the atom catalysts, atomically dispersed heteronuclear dual-atom catalysts (HDACs), which are featured with asymmetric active sites, have recently opened new pathways in the field of advancing atomic catalysis. In this review, the up-to-date investigations on heteronuclear dual-atom catalysts together with the last advances on their theoretical predictions and experimental constructions are summarized. Furthermore, the current experimental synthetic strategies and accessible characterization techniques for these kinds of atomic catalysts, are also discussed. Finally, the crucial challenges in both theoretical and experimental aspects, as well as the future prospects of HDACs for energy-related applications are provided. It is believed that this review will inspire the rational design and synthesis of the new generation of highly effective HDACs.
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Affiliation(s)
- Tianwei He
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao SAR, 999078, P. R. China
- Fritz-Haber-Institut, Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V., Theory Department, Faradayweg 4-6, 14195, Berlin, Germany
| | - Alain R Puente Santiago
- Department of Chemistry, University of Texas at El Paso, 500 West University Avenue, El Paso, TX, 79968, USA
| | - Youchao Kong
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao SAR, 999078, P. R. China
| | - Md Ariful Ahsan
- Department of Chemistry, University of Texas at El Paso, 500 West University Avenue, El Paso, TX, 79968, USA
| | - Rafael Luque
- Department of Organic Chemistry, University of Cordoba, Campus de Rabanales, Edificio Marie Curie (C-3), Ctra Nnal IV-A, Km 396, Cordoba, E14014, Spain
- Russia Centre for Materials Science and School of Chemistry and Physics, Peoples Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya str, Moscow, 117198, Russian Federation
| | - Aijun Du
- Queensland University of Technology, Garden Point Campus, Brisbane, Queensland, 4001, Australia
| | - Hui Pan
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao SAR, 999078, P. R. China
- Department of Physics and Chemistry, Faculty of Science and Technology, University of Macau, Macao SAR, 999078, P. R. China
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He T, Yang L, Wu D. Effect of interferon regulatory factor 2 on inflammatory response and oxidative stress in lipopolysaccharide-induced acute kidney injury. Drug Dev Res 2022; 83:940-951. [PMID: 35088417 DOI: 10.1002/ddr.21919] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 11/23/2021] [Accepted: 01/13/2022] [Indexed: 12/11/2022]
Abstract
Interferon regulatory factor (IRF) 2 plays an important role in lipopolysaccharide (LPS)-induced acute kidney injury (AKI). In this study, we explored the effects of IRF2 on apoptosis, inflammation, and oxidative stress in AKI C57BL/6 male mouse model and HEK293 cells following LPS treatment. To determine the effect of IRF2, short hairpin RNAs in mice and small interfering RNAs in cells were used to knockdown IRF2 expression. IRF2 expression, apoptosis, and severity of inflammatory and oxidative stress in mice and cells were measured. IRF2 levels were upregulated in LPS-treated mice and cells. IRF2 knockdown suppressed the levels of creatinine, blood urea nitrogen, and kidney injury molecule 1 and decreased the renal injury score in mice. Furthermore, IRF2 knockdown inhibited apoptosis and decreased the levels of inflammatory, reactive oxygen species (ROS), and malondialdehyde (MDA), but increased superoxide dismutase (SOD) levels in mice and cells. Furthermore, we found that the Janus kinase (JAK)/ signal transducer and activator of transcription pathway activated by LPS was inhibited by knockdown of IRF2, and enhanced by IRF2 overexpression. IRF2 overexpression increased cell apoptosis, inflammation, and ROS and MDA levels, and decreased SOD levels. However, the effect of IRF2 overexpression was reversed by the JAK inhibitor tofacitinib. Knockdown of IRF2 reduced LPS-induced renal tissue injury in vivo and in vitro through anti-inflammatory and antioxidant stress effects.
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Affiliation(s)
- Tianwei He
- Department of Nephrology, The Yantai Yuhuangding Hospital, Yantai, China
| | - Lina Yang
- Department of Nephrology, The Yantai Yuhuangding Hospital, Yantai, China
| | - Daoxu Wu
- Department of Nephrology, The Yantai Yuhuangding Hospital, Yantai, China
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Ahsan MA, He T, Eid K, Abdullah AM, Sanad MF, Aldalbahi A, Alvarado-Tenorio B, Du A, Puente Santiago AR, Noveron JC. Controlling the Interfacial Charge Polarization of MOF-Derived 0D-2D vdW Architectures as a Unique Strategy for Bifunctional Oxygen Electrocatalysis. ACS Appl Mater Interfaces 2022; 14:3919-3929. [PMID: 35014264 DOI: 10.1021/acsami.1c17283] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The design of alternative earth-abundant van der Waals (vdW) nanoheterostructures for bifunctional oxygen evolution/reduction (OER/ORR) electrocatalysis is of paramount importance to fabricate energy-related devices. Herein, we report a simple metal-organic framework (MOF)-derived synthetic strategy to fabricate low-dimensional (LD) nanohybrids formed by zero-dimensional (0D) ZrO2 nanoparticles (NPs) and heteroatom-doped two-dimensional (2D) carbon nanostructures. The 2D platforms controlled the electronic structures of interfacial Zr atoms, thus producing optimized electron polarization for boron and nitrogen-doped carbon (BCN)/ZrO2 nanohybrids. X-ray photoelectron spectroscopy (XPS) and theoretical studies revealed the key role of the synergistic couple effect of boron (B) and nitrogen (N) in interfacial electronic polarization. The BCN/ZrO2 nanohybrid showed excellent bifunctional electrocatalytic activity, delivering an overpotential (η10) of 301 mV to reach a current density of 10 mA-cm-2 for the OER process and a half-wave potential (E1/2) of 0.85 V vs reversible hydrogen electrode (RHE) for the ORR process, which are comparable to the state-of-the-art LD nanohybrids. Furthermore, BCN/ZrO2 also showed competitive performances for water-splitting and zinc-air battery devices. This work establishes a new route to fabricate highly efficient multifunctional electrocatalysts by tuning the electronic polarization properties of 0D-2D electrochemical interfaces.
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Affiliation(s)
- Md Ariful Ahsan
- Department of Chemistry and Biochemistry, University of Texas at El Paso, El Paso, Texas 79968, United States
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Houston, Texas 77005, United States
| | - Tianwei He
- Centre for Materials Science, Queensland University of Technology, Gardens Point Campus, Brisbane, QLD 4000, Australia
- School of Chemistry and Physics, Science and Engineering Faculty, Queensland University of Technology, Gardens Point Campus, Brisbane, QLD 4000, Australia
| | - Kamel Eid
- Gas Processing Center, College of Engineering, Qatar University, Doha 2713, Qatar
| | | | - Mohamed Fathi Sanad
- Department of Environmental Sciences and Engineering, University of Texas at El Paso, El Paso, Texas 79968, United States
| | - Ali Aldalbahi
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | | | - Aijun Du
- Centre for Materials Science, Queensland University of Technology, Gardens Point Campus, Brisbane, QLD 4000, Australia
- School of Chemistry and Physics, Science and Engineering Faculty, Queensland University of Technology, Gardens Point Campus, Brisbane, QLD 4000, Australia
| | - Alain R Puente Santiago
- Department of Chemistry and Biochemistry, University of Texas at El Paso, El Paso, Texas 79968, United States
| | - Juan C Noveron
- Department of Chemistry and Biochemistry, University of Texas at El Paso, El Paso, Texas 79968, United States
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Houston, Texas 77005, United States
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Ahsan MA, He T, Noveron JC, Reuter K, Puente-Santiago AR, Luque R. Low-dimensional heterostructures for advanced electrocatalysis: an experimental and computational perspective. Chem Soc Rev 2022; 51:812-828. [PMID: 35022644 DOI: 10.1039/d1cs00498k] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Low dimensional electrocatalytic heterostructures have recently attracted significant attention in the catalysis community due to their highly tuneable interfaces and exciting electronic features, opening up new possibilities for effective nanometric control of both the charge carriers and energetic states of several intermediate catalytic species. In-depth understanding of electrocatalytic routes at the interface between two or more low-dimensional nanostructures has triggered the development of heterostructure nanocatalysts with extraordinary properties for water splitting reactions, NRR and CO2RR. This tutorial review provides an overview of the most recent advances in synthetic strategies for 0D-1D, 0D-2D, and 2D-2D nanoheterostructures, discussing key aspects of their electrocatalytic performances from experimental and computational perspectives as well as their applications towards the development of overall water splitting and Zn-air battery devices.
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Affiliation(s)
- Md Ariful Ahsan
- Department of Chemistry, University of Texas at El Paso, 500 West University Avenue, El Paso, Texas 79968, USA.
| | - Tianwei He
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany.
| | - Juan C Noveron
- Department of Chemistry, University of Texas at El Paso, 500 West University Avenue, El Paso, Texas 79968, USA.
| | - Karsten Reuter
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany. .,Chair for Theoretical Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
| | - Alain R Puente-Santiago
- Department of Chemistry, University of Texas at El Paso, 500 West University Avenue, El Paso, Texas 79968, USA.
| | - Rafael Luque
- Department of Organic Chemistry, University of Cordoba, Campus de Rabanales, Edificio Marie Curie (C-3), Ctra Nnal IV-A, Km 396, E14014 Cordoba, Spain.,Peoples Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Str., 117198, Moscow, Russia
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Cui H, Gao QQ, Zhuang H, He T, Wan BS, Wang XQ, Zhang L, Huang T, Han F. [Effect and mechanism of siRNA targeting α-enolase gene combined with paclitaxel on proliferation, invasion and apoptosis of hepatocellular carcinoma cell]. Zhonghua Zhong Liu Za Zhi 2021; 43:1241-1247. [PMID: 34915631 DOI: 10.3760/cma.j.cn112152-20191225-00840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of siRNA targeting inhibition of α-enolase (ENO1) combined with paclitaxel on the proliferation, invasion and apoptosis of hepatocellular carcinoma SK-HEP-1 cell and its mechanism. Methods: siRNA-ENO1 (siRNA-ENO1 group) and siRNA-negative control (siRNA-NC group) were transfected into SK-HEP-1 cells in vitro, the untransfected SK-HEP-1 cells were used as the control group, and the transfection effect was detected by real-time fluorescent quantitative polymerase chain reaction and western blotting. After SK-HEP-1 cells were treated with 0, 2.5, 5, 10, 20 and 40 μg/L paclitaxel for 48 hours, the cell survival rate was measured by 3-(4, 5-dimethyl-2-thiazolyl)-2, 5-diphenyl-2H tetrazolium bromide (MTT) method and the semi inhibitory concentration of paclitaxel was calculated. SK-HEP-1 cells transfected with siRNA-ENO1 or siRNA-NC were treated with 10 μg/L paclitaxel as paclitaxel+ siRNA-ENO1 group and paclitaxel+ siRNA-NC group. The proliferation, clonogenesis, invasion and apoptosis of siRNA-NC group, siRNA-ENO1 group, paclitaxel+ siRNA-ENO1 group and paclitaxel+ siRNA-NC group were detected by MTT, clonogenesis, Transwell chamber and flow cytometry respectively. The expression levels of the phosphorylation of phosphatidylinositol-3-kinase (p-PI3K), p-protein kinase B (Akt) and proliferating cell nuclear antigen (PCNA), matrix metalloproteinase 9 (MMP-9) and B lymphocytoma-2 gene (Bcl-2) were detected by western blotting. Results: Compared with the control group (1.00±0.00 and 0.69±0.04, respectively), the expression levels of ENO1 mRNA and protein (0.25±0.03 and 0.23±0.02, respectively) in siRNA-ENO1 group decreased significantly (P<0.05), but there were no significant differences in the expression levels of ENO1 mRNA and protein in siRNA-NC group (P>0.05). Compared without treatment group [(100.00±0.00)%, P<0.05], the survival rates of SK-HEP-1 cells treated with 2.5, 5, 10, 20 and 40 μg/L paclitaxel [(88.65±6.46)%, (72.36±6.08)%, (60.48±4.23)%, (38.52±3.56)% and (20.75±2.32)%, respectively] decreased significantly (P<0.05), and the semi inhibitory concentration of paclitaxel was 13.26 μg/L. The cell survival rate and clone formation rate of siRNA-ENO1 group [(68.86±5.12)% and (18.12±2.25)%, respectively] were lower than those of siRNA-NC group [(100.00±0.00)% and (29.65±3.06)%, respectively, P<0.05]. The cell survival rate and clone formation rate of the paclitaxel+ siRNA-ENO1 group [(43.28±2.64)% and (8.72±0.52)%, respectively] were significantly different from those of the paclitaxel+ siRNA-NC group [(61.75±5.06)% and (13.48±2.16)%, respectively, P<0.05] and siRNA-ENO1 groups [(68.86±5.12)% and (18.12±2.25)%, respectively, P<0.05]. Cell invasion number in paclitaxel+ siRNA-ENO1 group (23.64±2.12) was lower than that in siRNA-ENO1 group and paclitaxel+ siRNA-NC group (42.16±2.75 and 37.35±2.42, respectively, P<0.05). The apoptosis rates of paclitaxel+ siRNA-NC group and siRNA-ENO1 group [(17.49±1.35)% and (15.29±1.50)%, respectively] were higher than that of siRNA-NC group [(7.21±0.70)%, P<0.05]. The apoptosis rate in the paclitaxel+ siRNA-ENO1 group [(24.59±2.40)%] was higher than those in the paclitaxel+ siRNA-NC group and siRNA-ENO1 group [(17.49±1.35)% and (15.29±1.50)%, respectively, P<0.05]. The expression levels of ENO1, PI3K/Akt signaling pathway related proteins including p-PI3K and p-Akt and the expression levels of PCNA, MMP-9 and Bcl-2 in siRNA-ENO1 group and paclitaxel+ siRNA-NC group were lower than those in siRNA-NC group (P<0.05). The expression levels of ENO1, p-PI3K, p-Akt, PCNA, MMP-9 and Bcl-2 in paclitaxel+ siRNA-ENO1 group were lower than those in siRNA-ENO1 group or paclitaxel+ siRNA-NC group (P<0.05). Conclusion: siRNA targeting inhibition of ENO1 expression can enhance the inhibitory effect of paclitaxel on proliferation, invasion and apoptosis of SK-HEP-1 cells, and its mechanism may be related to the inhibition of PI3K/AKT signaling pathway.
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Affiliation(s)
- H Cui
- Department of Hepatobiliary and Pancreatic Surgery, Cancer Hospital of Henan, the Tumor Hospital Affiliated to Zhengzhou University, Zhengzhou 450052, China
| | - Q Q Gao
- Supply Room of Henan Provincial People's Hospital, Zhengzhou 450052, China
| | - H Zhuang
- Department of Hepatobiliary and Pancreatic Surgery, Cancer Hospital of Henan, the Tumor Hospital Affiliated to Zhengzhou University, Zhengzhou 450052, China
| | - T He
- Department of Hepatobiliary and Pancreatic Surgery, Cancer Hospital of Henan, the Tumor Hospital Affiliated to Zhengzhou University, Zhengzhou 450052, China
| | - B S Wan
- Department of Hepatobiliary and Pancreatic Surgery, Cancer Hospital of Henan, the Tumor Hospital Affiliated to Zhengzhou University, Zhengzhou 450052, China
| | - X Q Wang
- Department of Hepatobiliary and Pancreatic Surgery, Cancer Hospital of Henan, the Tumor Hospital Affiliated to Zhengzhou University, Zhengzhou 450052, China
| | - L Zhang
- Department of Hepatobiliary and Pancreatic Surgery, Cancer Hospital of Henan, the Tumor Hospital Affiliated to Zhengzhou University, Zhengzhou 450052, China
| | - T Huang
- Department of Hepatobiliary and Pancreatic Surgery, Cancer Hospital of Henan, the Tumor Hospital Affiliated to Zhengzhou University, Zhengzhou 450052, China
| | - F Han
- Department of Hepatobiliary and Pancreatic Surgery, Cancer Hospital of Henan, the Tumor Hospital Affiliated to Zhengzhou University, Zhengzhou 450052, China
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Mei J, He T, Bai J, Qi D, Du A, Liao T, Ayoko GA, Yamauchi Y, Sun L, Sun Z. Surface-Dependent Intermediate Adsorption Modulation on Iridium-Modified Black Phosphorus Electrocatalysts for Efficient pH-Universal Water Splitting. Adv Mater 2021; 33:e2104638. [PMID: 34623715 DOI: 10.1002/adma.202104638] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 09/08/2021] [Indexed: 06/13/2023]
Abstract
2D black phosphorus (BP) is one promising electrocatalyst toward hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) catalysis. The too strong adsorption of oxygen intermediates during OER, while the too weak adsorption of hydrogen intermediate during HER, however, greatly compromise its practical water splitting applications with overpotentials as high as 450 mV for OER and 420 mV for HER to achieve 10 mA cm-2 under alkaline conditions. Herein, by rationally introducing the nanosized iridium (Ir) modifier together with optimized exposing surface toward electrolytes, an efficient Ir-modified BP electrocatalyst with much favorable adsorption energies toward catalytic intermediates possesses an outstanding pH-universal water splitting performance, surpassing the nearly all reported BP-based catalysts and the commercial noble-metal catalysts. The Ir-modified BP catalyst with the optimized exposed surfaces only requires an overall cell voltage of 1.54 and 1.57 V to achieve 10 mA cm-2 in acidic and alkaline electrolysers, respectively. This design uncovers the potential applications of 2D BP in practical electrocatalysis fields via decreasing reaction intermediate adsorption energy barriers and promoting the interfacial electron coupling for heterostructured catalysts, and offers new insights into the surface-dependent activity enhancement mechanism.
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Affiliation(s)
- Jun Mei
- Centre for Materials Science, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4000, Australia
- School of Chemistry and Physics, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4000, Australia
| | - Tianwei He
- Centre for Materials Science, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4000, Australia
- School of Chemistry and Physics, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4000, Australia
| | - Juan Bai
- Centre for Materials Science, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4000, Australia
- School of Chemistry and Physics, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4000, Australia
| | - Dongchen Qi
- Centre for Materials Science, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4000, Australia
- School of Chemistry and Physics, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4000, Australia
| | - Aijun Du
- Centre for Materials Science, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4000, Australia
- School of Chemistry and Physics, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4000, Australia
| | - Ting Liao
- Centre for Materials Science, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4000, Australia
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4000, Australia
| | - Godwin A Ayoko
- Centre for Materials Science, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4000, Australia
- School of Chemistry and Physics, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4000, Australia
| | - Yusuke Yamauchi
- Australian Institute for Bioengineering and Nanotechnology (AIBN) and School of Chemical Engineering, The University of Queensland, St Lucia, QLD, 4072, Australia
- JST-ERATO Yamauchi Materials Space-Tectonics Project and International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Litao Sun
- School of Electronic Science and Engineering, Southeast University, Sipailou 2, Nanjing, 210096, China
| | - Ziqi Sun
- Centre for Materials Science, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4000, Australia
- School of Chemistry and Physics, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4000, Australia
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Liu W, Kong Y, Wang B, Li X, Liu P, Santiago ARP, He T. Computational Study of the Curvature-Promoted Anchoring of Transition Metals for Water Splitting. Nanomaterials (Basel) 2021; 11:nano11123173. [PMID: 34947523 PMCID: PMC8709100 DOI: 10.3390/nano11123173] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/09/2021] [Accepted: 11/20/2021] [Indexed: 11/16/2022]
Abstract
Generating clean and sustainable hydrogen from water splitting processes represent a practical alternative to solve the energy crisis. Ultrathin two-dimensional materials exhibit attractive properties as catalysts for hydrogen production owing to their large surface-to-volume ratios and effective chemisorption sites. However, the catalytically inactive surfaces of the transition metal dichalcogenides (TMD) possess merely small areas of active chemical sites on the edge, thus decreasing their possibilities for practical applications. Here, we propose a new class of out-of-plane deformed TMD (cTMD) monolayer to anchor transition metal atoms for the activation of the inert surface. The calculated adsorption energy of metals (e.g., Pt) on curved MoS2 (cMoS2) can be greatly decreased by 72% via adding external compressions, compared to the basal plane. The enlarged diffusion barrier energy indicates that cMoS2 with an enhanced fixation of metals could be a potential candidate as a single atom catalyst (SAC). We made a well-rounded assessment of the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER), which are two key processes in water splitting. The optimized Gibbs free energy of 0.02 for HER and low overpotential of 0.40 V for OER can be achieved when the proper compression and supported metals are selected. Our computational results provide inspiration and guidance towards the experimental design of TMD-based SACs.
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Affiliation(s)
- Weiwei Liu
- Department of Physics and Electronic Engineering, Yancheng Teachers University, Yancheng 224002, China; (W.L.); (Y.K.)
| | - Youchao Kong
- Department of Physics and Electronic Engineering, Yancheng Teachers University, Yancheng 224002, China; (W.L.); (Y.K.)
| | - Bo Wang
- School of Applied Physics and Materials, Wuyi University, Jiangmen 529020, China;
| | - Xiaoshuang Li
- School of Applied Physics and Materials, Wuyi University, Jiangmen 529020, China;
- Correspondence: (X.L.); (T.H.)
| | - Pengfei Liu
- Spallation Neutron Source Science Center, Institute of High Energy Physics, Chinese Academy of Sciences, Dongguan 523803, China;
| | - Alain R. Puente Santiago
- Department of Chemistry and Biochemistry, University of Texas at El Paso, 500 W. University Avenue, El Paso, TX 79968, USA;
| | - Tianwei He
- Fritz-Haber-Institute der Max-Planck-Gesellschaft, Faradayweg, 4-6, 14195 Berlin, Germany
- Correspondence: (X.L.); (T.H.)
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He T, Li Y, Zhang Z, Shen P, Zhang Y. The Monitoring Method of Metal-oxide Arrester Based on Leakage Current Sensor and BP Neural Network. INT J ARTIF INTELL T 2021. [DOI: 10.1142/s0218213022400012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Lu Y, Zhou Q, Wang LN, He T, Zhao HY, Cao XQ. [Application effects of failure mode and effect analysis on the limb posture positioning nursing of extremely severe burn patients]. Zhonghua Shao Shang Za Zhi 2021; 37:1078-1084. [PMID: 34794260 DOI: 10.3760/cma.j.cn501120-20210412-00126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the application effects of risk assessment method of failure mode and effect analysis (FMEA) on the limb posture positioning nursing of extremely severe burn patients. Methods: A retrospective observational study was conducted. According to the different limb posture positioning methods, 30 extremely severe burn patients who met the inclusion criteria and underwent routine limb posture positioning in the First Affiliated Hospital of Air Force Medical University from January 2018 to June 2019 were included into routine limb positioning group (19 males and 11 females, aged (40±10) years), and 30 extremely severe burn patients who met the inclusion criteria and underwent limb posture positioning with FMEA risk assessment from July 2019 to December 2020 in the department were included into FMEA limb positioning group (20 males and 10 females, aged (38±10) years). Patients in routine limb positioning group received only routine limb posture positioning by rehabilitation therapists with bare hand every day from the time when their limb wounds healed until they were discharged from hospital. Patients in FMEA limb positioning group received FMEA risk assessment by physicians, rehabilitation therapists, and nurses within 24 hours after admission to analyze the potential failure modes of limb posture positioning, and target-directed limb posture positioning measures were adopted until they were discharged. The risk priority numbers (RPNs) of six major failure modes of patients in FMEA limb positioning group before and after intervention were compared. The range of motion (ROM) of shoulder abduction, elbow extension, wrist dorsiflexion, ankle plantarflexion, total action motion of hand, and modified Barthel index scores of the patients in two groups before and after intervention were also assessed. Data were statistically analyzed with independent sample t test, chi-square test, and paired sample t test. Results: The RPNs of 6 main potential failure modes of patients in FMEA limb positioning group i.e. untimely interference of limb posture positioning, not strong awareness of limb posture positioning of nurses, inconsistent of evaluation standards of limb posture positioning, nurses' lacking knowledge about limb posture positioning, nurses' lacking active participation, unsatisfying effects of patients' limb posture positioning were respectively (146±31), (140±22), (125±34), (136±23), (110±28), and (110±5) points after intervention, which were significantly lower than (578±64), (543±57), (419±89), (269±64), (240±41), and (222±48) points before intervention (t=18.441, 23.681, 10.035, 5.362, 9.438, 7.171, P<0.01). After intervention, the ROMs of shoulder abduction, elbow extension, wrist dorsiflexion, and ankle plantarflexion of patients in FMEA limb positioning group were significantly better than those in routine limb positioning group (t=-4.250, 11.400, -15.928, 10.963, -7.470, P<0.01); the ROMs of shoulder abduction, elbow extension, wrist dorsiflexion, and ankle plantarflexion of patients in FMEA limb positioning group and routine limb positioning group were significantly better than those before intervention (t=-35.573, 33.670, -31.090, 32.902, -19.647, -14.952, 11.411, -33.462, -12.818, -13.672, P<0.01). After intervention, the Barthel index score of patients in FMEA limb positioning group (78±9) was significantly higher than 57±9 in routine limb positioning group (t=-9.055, P<0.01), and the Barthel index scores of patients in FMEA limb positioning group and routine limb positioning group were significantly higher than those before intervention (35±5 and 34±4, t=-22.964, -12.329, P<0.01). Conclusions: In the limb posture positioning nursing of extremely severe burn patients, risk assessment method of FMEA can effectively avoid the high risk factors in the limb posture positioning of patients, thus maintain the effects of limb posture positioning and improve the ROM of patients, as well as increase the daily living ability of patients in prognosis.
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Affiliation(s)
- Y Lu
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - Q Zhou
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - L N Wang
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - T He
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - H Y Zhao
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - X Q Cao
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
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Li Q, Cai T, Zhang L, Liu N, Chen R, Xie Z, Huang J, Zhang X, He T, Cao H, Li Y, Lan T, Xie S, Peng Y, Li B, Wu J, Li J, Liang F, Fan S. 892P The genomic features of Chinese oropharyngeal squamous cell carcinomas and the implications for therapy. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Kong Y, He T, Puente Santiago AR, Liu D, Du A, Wang S, Pan H. Unravelling the Reaction Mechanisms of N 2 Fixation on Molybdenum Nitride: A Full DFT Study from the Pristine Surface to Heteroatom Anchoring. ChemSusChem 2021; 14:3257-3266. [PMID: 34121349 DOI: 10.1002/cssc.202101014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/04/2021] [Indexed: 06/12/2023]
Abstract
Transition metal nitrides (TMNs)-based materials have attracted increasing attention in electrochemical nitrogen reduction reaction (eNRR) because of their unique structures and inherent electronic properties. However, the eNRR mechanism on such nitrogen contained catalysts is still unclear, for example, which part of the catalyst act as the active sites, and how to achieve the optimal efficiency is also challenging. In this work, a comprehensive study was conducted to unravel the reaction mechanisms of N2 fixation on molybdenum nitride by using density functional theory (DFT) calculations. The activity and selectivity of eNRR on pristine (001) and (110) Mo5 N6 surfaces as well as few specific numbers of heteroatom-anchored N-terminated surfaces were all evaluated and compared. It was found that the Mo and N atoms on the pristine Mo5 N6 surface were both active for eNRR while following different pathways in mechanism. Moreover, the eNRR catalytic performance of Mo5 N6 could be further boosted by specific metal atoms anchoring, such as single atom, metal dimer, and heterodiatom pair. Finally, a full map of eNRR mechanism on pristine and metal atom-decorated Mo5 N6 surfaces was illustrated. This work not only provides a fundamental understanding of eNRR mechanism on TMNs based materials but also offers powerful strategies towards the rational design of efficient NRR electrocatalysts.
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Affiliation(s)
- Youchao Kong
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao SAR, 999078, P. R. China
| | - Tianwei He
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao SAR, 999078, P. R. China
| | - Alain R Puente Santiago
- Department of Chemistry, University of Texas at El Paso, 500 West University Avenue, El Paso, Texas, 79968, USA
| | - Dong Liu
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao SAR, 999078, P. R. China
| | - Aijun Du
- School of Chemistry and Physics, Science and Engineering Faculty, Queensland University of Technology, Gardens Point Campus, Brisbane, QLD 4000, Australia
| | - Shuangpeng Wang
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao SAR, 999078, P. R. China
- Department of Physics and Chemistry, Faculty of Science and Technology, University of Macau, Macao SAR, 999078, P. R. China
| | - Hui Pan
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao SAR, 999078, P. R. China
- Department of Physics and Chemistry, Faculty of Science and Technology, University of Macau, Macao SAR, 999078, P. R. China
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Wang X, He T, He L, Yang B, Liu Z, Pang M, Xie P, Zhang L, Rong L. Melatonin contributes to the hypertrophic differentiation of mesenchymal stem cell-derived chondrocytes via activation of the Wnt/β-catenin signaling pathway : Melatonin promotes MSC-derived chondrocytes hypertrophy. Stem Cell Res Ther 2021; 12:467. [PMID: 34419165 PMCID: PMC8379782 DOI: 10.1186/s13287-021-02536-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 04/20/2021] [Accepted: 08/05/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Hypertrophy is a critical process for chondrocyte differentiation and maturation during endochondral ossification, which is responsible for the formation of long bone and postnatal longitudinal growth. Increasing evidence suggests that melatonin, an indole hormone, plays a pivotal role in chondrogenesis. However, little is known about the effects of melatonin on the terminal differentiation of chondrocytes. METHODS Mesenchymal stem cell (MSC)-derived chondrocytes generated by a high-density micromass culture system were induced to undergo hypertrophic differentiation. Melatonin-mediated hypertrophic differentiation was examined by reverse transcription polymerase chain reaction analysis (RT-PCR) analysis, histological staining and immunohistochemistry. Activation of the Wnt signaling pathway was evaluated by PCR array, RT-PCR, western blotting and immunofluorescence. XAV-939, a Wnt signaling pathway antagonist, was further used to determine whether the effect of melatonin on chondrocyte hypertrophic differentiation was mediated occurred by activation of Wnt signaling pathway. RESULTS Histological staining showed melatonin increased chondrocyte cell volume and the expression of type X collagen but decreased the expression of type II collagen compared with the control group. RT-PCR showed that melatonin significantly up-regulated the gene expressions of biomarkers of hypertrophic chondrocytes, including type X collagen, alkaline phosphatase, runt-related transcription factor 2, Indian hedgehog and parathyroid hormone-related protein receptor, and melatonin down-regulated the mRNA expression of hallmarks of chondrocytes, including parathyroid hormone-related protein. PCR array showed that the effect of melatonin on chondrocyte hypertrophic differentiation was accompanied by the up-regulation of multiple target genes of the canonical Wnt signaling pathway, and this effect was blocked by XAV-939. CONCLUSIONS The current findings demonstrate that melatonin enhances the hypertrophic differentiation of MSC-derived chondrocytes through the Wnt signaling pathway. Our findings add evidence to the role of melatonin in promoting bone development and highlight the positive effects of melatonin on terminal differentiation of chondrocytes.
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Affiliation(s)
- Xuan Wang
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, People's Republic of China.,Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery, Guangzhou, People's Republic of China.,Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery, Guangzhou, People's Republic of China
| | - Tianwei He
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, People's Republic of China.,Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery, Guangzhou, People's Republic of China.,Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery, Guangzhou, People's Republic of China
| | - Lei He
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, People's Republic of China.,Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery, Guangzhou, People's Republic of China.,Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery, Guangzhou, People's Republic of China
| | - Bu Yang
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, People's Republic of China.,Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery, Guangzhou, People's Republic of China.,Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery, Guangzhou, People's Republic of China
| | - Zhongyu Liu
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, People's Republic of China.,Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery, Guangzhou, People's Republic of China.,Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery, Guangzhou, People's Republic of China
| | - Mao Pang
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, People's Republic of China.,Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery, Guangzhou, People's Republic of China.,Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery, Guangzhou, People's Republic of China
| | - Peigen Xie
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, People's Republic of China.,Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery, Guangzhou, People's Republic of China.,Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery, Guangzhou, People's Republic of China
| | - Liangming Zhang
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, People's Republic of China. .,Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery, Guangzhou, People's Republic of China. .,Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery, Guangzhou, People's Republic of China.
| | - Limin Rong
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, People's Republic of China. .,Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery, Guangzhou, People's Republic of China. .,Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery, Guangzhou, People's Republic of China.
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Ahsan MA, He T, Eid K, Abdullah AM, Curry ML, Du A, Puente Santiago AR, Echegoyen L, Noveron JC. Correction to "Tuning the Intermolecular Electron Transfer of Low-Dimensional and Metal-Free BCN/C 60 Electrocatalysts via Interfacial Defects for Efficient Hydrogen and Oxygen Electrochemistry". J Am Chem Soc 2021; 143:11271. [PMID: 34264665 DOI: 10.1021/jacs.1c06579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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He T, Ren X, Ji JL, Xie GJ, Zhao HQ, Wang X. [The progress of the application of artificial intelligence in the diagnosis and treatment of respiratory diseases]. Zhonghua Jie He He Hu Xi Za Zhi 2021; 44:642-645. [PMID: 34256449 DOI: 10.3760/cma.j.cn112147-20201118-01103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
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Lin Y, Wu T, Yang M, Duangmano S, Chaiwongsa R, Pornprasert S, He T. Upregulation of long noncoding RNA FERRE promoted growth and invasion of breast cancer through modulating miR-19a-5p/EZH2 axis. Eur Rev Med Pharmacol Sci 2021; 24:11154-11164. [PMID: 33215433 DOI: 10.26355/eurrev_202011_23603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE It has been demonstrated that long non-coding RNA (LncRNA) plays an important regulatory role in a series of diseases. The purpose of this study is to investigate the expression of long non-coding RNA (LncRNA) FERRE and its facilitating effects on proliferation and invasion of breast cancer by regulating oncogene EZH2 through sponging with miR-19a-5p. PATIENTS AND METHODS qRT-PCR was performed to detect the expressions of FERRE and EZH2 in human breast cancer tissues and cells. CCK-8 assay was performed to evaluate the MCF-7 cells proliferation and transwell assay was performed to evaluate the MCF-7 cells migration. Correlation analysis between FERRE and miR-19a-5p was detected by statistical analysis. Bioinformatics prediction was made to detect the binding site of FERRE and miR-19a-5p and Luciferase activity was conducted to investigate the interaction between EZH2 and miR-19a-5p. Furthermore, we cloned the mice EZH2 3'-UTR into the Luciferase reporter vector and constructed miR-19a-5p binding mutants to validate the inhibited modulation of miR-19a-5p to the EZH2 expression. RESULTS Results showed that expression of FERRE and EZH2 were upregulated in human breast cancer tissues and cells. qRT-PCR and CCK-8 assay showed that FERRE expression is associated with the proliferation of breast cancer cells, upregulated FERRE contributed to cell proliferation of MCF-7. Transwell assay showed that FERRE was associated with the migration ability of tumor cells, increased expression of FERRE promoted the migration and invasion of breast cancer cells. The bioinformatics prediction and Luciferase assay demonstrated that by sponging with miR-19a-5p, FERRE can serve as a molecular sponge to further regulate the expression of EZH2. CONCLUSIONS We found that lncRNA-FERRE was upregulated in human breast cancer patients, which could accelerate tumor proliferation, migration and invasion as a molecular sponge by modulating the inhibitory effect of miR-19a-5p on oncogene EZH2.
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Affiliation(s)
- Y Lin
- Institute for Cancer Medicine, School of Basic Medical Sciences, Southwest Medical University, Luzhou, China.
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Han D, Yu Y, He T, Yu N, Dang S, Wu H, Ren J, Duan X. Effect of radiomics from different virtual monochromatic images in dual-energy spectral CT on the WHO/ISUP classification of clear cell renal cell carcinoma. Clin Radiol 2021; 76:627.e23-627.e29. [PMID: 33985770 DOI: 10.1016/j.crad.2021.02.033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Accepted: 02/10/2021] [Indexed: 12/24/2022]
Abstract
AIM To investigate the effect of radiomics obtained from different virtual monochromatic images (VMIs) in dual-energy spectral computed tomography (CT) on the World Health Organization/International Association for Urological Pathology (WHO/ISUP) classification of clear cell renal cell carcinoma (ccRCC). MATERIALS AND METHODS A retrospective study of 99 ccRCC patients who underwent contrast-enhanced dual-energy CT was undertaken. ccRCC was confirmed at surgery or biopsy and graded according to the WHO/ISUP pathological grading criteria as low grade (n=68, grade I and II) or high grade (n=31, grade III and IV). Radiomics risk scores (RRSs) for differentiating high and low grades of ccRCC were constructed from 11 sets of VMI in (40-140 keV, 10 keV interval) the cortical phase. Receiver operating characteristic (ROC) curves were drawn and the area under the curves (AUCs) was calculated to evaluate the discriminatory power of RRS for each VMI. The Hosmer-Lemeshow test was used to evaluate the goodness-of-fit of each model and the decision curve was used to analyse its net benefit to patients. RESULTS The AUC values for distinguishing low-from high-grade ccRCC with RRS of 40-140 keV VMIs were all >0.920. The Hosmer-Lemeshow test showed that the p-values of RRS of VMIs were >0.05, suggesting good fits. In the decision curve analysis, RRS from the 40-140 keV VMIs had similar decision curves and provided better net benefits than considering all patients either as high-grade or low-grade. CONCLUSIONS The RRS obtained from multiple VMIs in dual-energy spectral CT have high diagnostic efficiencies for distinguishing between low- and high-grade ccRCC with no significant differences between different VMIs.
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Affiliation(s)
- D Han
- Department of Medical Image, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Y Yu
- Department of Radiology, Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, China
| | - T He
- Department of Radiology, Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, China
| | - N Yu
- Department of Radiology, Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, China
| | - S Dang
- Department of Medical Image, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - H Wu
- Pathology Department, Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, China
| | - J Ren
- GE Healthcare China, Beijing, China
| | - X Duan
- Department of Medical Image, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
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He T, Quan T, Xia W, Dlugosz A, Voorhees J, Fisher G. 178 Expression of active matrix metalloproteinase-1 in dermal fibroblasts: A novel mouse model of accelerated human dermal aging. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Zhang XB, Fei YX, He T, Gao L, Zhang YT, Gao YD, Li G, Wang J, Ru QJ, Wang HQ, Chen GY. [Correlation analysis between serum ferritin level and liver damage in acute stage of dengue fever]. Zhonghua Gan Zang Bing Za Zhi 2021; 29:265-270. [PMID: 33902195 DOI: 10.3760/cma.j.cn501113-20191204-00444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the correlation between serum ferritin (SF) level and liver damage in the acute stage of dengue fever. Methods: A retrospective study was conducted to analyze 171 cases diagnosed with dengue fever as dengue fever group and 130 healthy patients as control group in Hangzhou 3A grade hospital from July to December 2017. Clinical data, SF and liver function related indicators were collected from both groups: alanine aminotransferase (ALT), aspartate aminotransferase (AST), total bilirubin (TBIL) to analyze the correlation between liver damage and SF in patients with dengue fever. Results: ALT, AST, and SF levels were significantly higher in the dengue fever group than those in the healthy control group (Z = 11.553, 15.054 and 15.163, P < 0.001). SF levels were higher in the dengue fever combined with liver damage group than those without the liver damage group (z = 6.930, P < 0.001). However, there was no statistically significant differences in age, gender, peak body temperature, and history of liver disease (P > 0.05). In addition, Spearman's correlation analysis showed that SF was positively correlated with ALT, AST, and TBIL (r = 0.464, 0.531 and 0.315, P < 0.001). Among dengue patients with different SF levels, there were significant difference in ALT, AST levels and incidence of liver damage (H = 14.240 and 17.584, χ(2) = 49.547, P < 0.001). Patients with higher SF levels had higher ALT, AST levels and incidence of liver damage. Binary logistic regression analysis showed that hyperferritinemia (SF≥500 ng/ml) was the risk factor for dengue fever combined with liver damage (OR = 8.120, P < 0.001). Furthermore, ROC curve analysis showed that the AUC for SF to judge dengue fever combined liver damage was 0.846 (95% CI: 0.785-0.908), and the sensitivity and specificity when the SF cut-off value was 1 506 ng/ml were 74.8% and 83.3%. Conclusion: There is a certain correlation between the SF level and the degree of liver damage in acute stage of dengue fever patients, and hyperferritinemia is a risk factor for dengue fever combined with liver damage.
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Affiliation(s)
- X B Zhang
- The Affiliated Hospital of Hangzhou Normal University, Hangzhou 310018, China
| | - Y X Fei
- Zhejiang Chinese Medical University, Hangzhou 310051, China
| | - T He
- Hangzhou Nomal University, Hangzhou 311100, China
| | - L Gao
- The Affiliated Hospital of Hangzhou Normal University, Hangzhou 310018, China
| | - Y T Zhang
- Zhejiang Chinese Medical University, Hangzhou 310051, China
| | - Y D Gao
- The Affiliated Hospital of Hangzhou Normal University, Hangzhou 310018, China
| | - G Li
- The Affiliated Hospital of Hangzhou Normal University, Hangzhou 310018, China
| | - J Wang
- The Affiliated Hospital of Hangzhou Normal University, Hangzhou 310018, China
| | - Q J Ru
- The second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310018, China
| | - H Q Wang
- Hangzhou Genter For Disease Control And Prevention, Hangzhou 310021, China
| | - G Y Chen
- The Affiliated Hospital of Hangzhou Normal University, Hangzhou 310018, China
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