1
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Xu Q, Tian H, Feng L, Li L, Tang J. An extremely rare case of Langerhans cell hyperplasia in the thymus. Pulmonology 2024:S2531-0437(24)00050-3. [PMID: 38755092 DOI: 10.1016/j.pulmoe.2024.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 04/05/2024] [Accepted: 04/08/2024] [Indexed: 05/18/2024] Open
Affiliation(s)
- Q Xu
- Department of Thoracic Surgery, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, China
| | - H Tian
- Department of Thoracic Surgery, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, China
| | - L Feng
- Department of Thoracic Surgery, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, China
| | - L Li
- Department of Thoracic Surgery, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, China
| | - J Tang
- Department of Thoracic Surgery, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, China.
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2
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Cheng F, Pavliuk O, Hardt S, Hunt LA, Cai B, Kubart T, Hammarström L, Plumeré N, Berggren G, Tian H. Embedding biocatalysts in a redox polymer enhances the performance of dye-sensitized photocathodes in bias-free photoelectrochemical water splitting. Nat Commun 2024; 15:3202. [PMID: 38615087 PMCID: PMC11016092 DOI: 10.1038/s41467-024-47517-9] [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: 12/12/2023] [Accepted: 04/03/2024] [Indexed: 04/15/2024] Open
Abstract
Dye-sensitized photoelectrodes consisting of photosensitizers and molecular catalysts with tunable structures and adjustable energy levels are attractive for low-cost and eco-friendly solar-assisted synthesis of energy rich products. Despite these advantages, dye-sensitized NiO photocathodes suffer from severe electron-hole recombination and facile molecule detachment, limiting photocurrent and stability in photoelectrochemical water-splitting devices. In this work, we develop an efficient and robust biohybrid dye-sensitized NiO photocathode, in which the intermolecular charge transfer is enhanced by a redox polymer. Owing to efficient assisted electron transfer from the dye to the catalyst, the biohybrid NiO photocathode showed a satisfactory photocurrent of 141±17 μA·cm-2 at neutral pH at 0 V versus reversible hydrogen electrode and a stable continuous output within 5 h. This photocathode is capable of driving overall water splitting in combination with a bismuth vanadate photoanode, showing distinguished solar-to-hydrogen efficiency among all reported water-splitting devices based on dye-sensitized photocathodes. These findings demonstrate the opportunity of building green biohybrid systems for artificial synthesis of solar fuels.
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Affiliation(s)
- Fangwen Cheng
- Department of Chemistry─Ångström laboratory, Physical Chemistry, Uppsala University, Box 521, 75120, Uppsala, Sweden
| | - Olha Pavliuk
- Department of Chemistry─Ångström laboratory, Molecular Biomimetics, Uppsala University, Box 523, 75120, Uppsala, Sweden
| | - Steffen Hardt
- Institute of Energy and Climate Research, Fundamental Electrochemistry (IEK-9), Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Straße, 52425, Jülich, Germany
| | - Leigh Anna Hunt
- Department of Chemistry─Ångström laboratory, Physical Chemistry, Uppsala University, Box 521, 75120, Uppsala, Sweden
| | - Bin Cai
- Department of Chemistry─Ångström laboratory, Physical Chemistry, Uppsala University, Box 521, 75120, Uppsala, Sweden
| | - Tomas Kubart
- Department of Electrical Engineering, Solid-State Electronics, Uppsala University, Box 65, 75103, Uppsala, Sweden
| | - Leif Hammarström
- Department of Chemistry─Ångström laboratory, Physical Chemistry, Uppsala University, Box 521, 75120, Uppsala, Sweden
| | - Nicolas Plumeré
- TUM Campus Straubing for Biotechnology and Sustainability, Technical University of Munich, Uferstrasse 53, 94315, Straubing, Germany.
| | - Gustav Berggren
- Department of Chemistry─Ångström laboratory, Molecular Biomimetics, Uppsala University, Box 523, 75120, Uppsala, Sweden.
| | - Haining Tian
- Department of Chemistry─Ångström laboratory, Physical Chemistry, Uppsala University, Box 521, 75120, Uppsala, Sweden.
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3
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Bagnall A, Eliasson N, Hansson S, Chavarot-Kerlidou M, Artero V, Tian H, Hammarström L. Ultrafast Electron Transfer from CuInS 2 Quantum Dots to a Molecular Catalyst for Hydrogen Production: Challenging Diffusion Limitations. ACS Catal 2024; 14:4186-4201. [PMID: 38510668 PMCID: PMC10949191 DOI: 10.1021/acscatal.3c06216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/06/2024] [Accepted: 02/16/2024] [Indexed: 03/22/2024]
Abstract
Systems integrating quantum dots with molecular catalysts are attracting ever more attention, primarily owing to their tunability and notable photocatalytic activity in the context of the hydrogen evolution reaction (HER) and CO2 reduction reaction (CO2RR). CuInS2 (CIS) quantum dots (QDs) are effective photoreductants, having relatively high-energy conduction bands, but their electronic structure and defect states often lead to poor performance, prompting many researchers to employ them with a core-shell structure. Molecular cobalt HER catalysts, on the other hand, often suffer from poor stability. Here, we have combined CIS QDs, surface-passivated with l-cysteine and iodide from a water-based synthesis, with two tetraazamacrocyclic cobalt complexes to realize systems which demonstrate high turnover numbers for the HER (up to >8000 per catalyst), using ascorbate as the sacrificial electron donor at pH = 4.5. Photoluminescence intensity and lifetime quenching data indicated a large degree of binding of the catalysts to the QDs, even with only ca. 1 μM each of QDs and catalysts, linked to an entirely static quenching mechanism. The data was fitted with a Poissonian distribution of catalyst molecules over the QDs, from which the concentration of QDs could be evaluated. No important difference in either quenching or photocatalysis was observed between catalysts with and without the carboxylate as a potential anchoring group. Femtosecond transient absorption spectroscopy confirmed ultrafast interfacial electron transfer from the QDs and the formation of the singly reduced catalyst (CoII state) for both complexes, with an average electron transfer rate constant of ≈ (10 ps)-1. These favorable results confirm that the core tetraazamacrocyclic cobalt complex is remarkably stable under photocatalytic conditions and that CIS QDs without inorganic shell structures for passivation can act as effective photosensitizers, while their smaller size makes them suitable for application in the sensitization of, inter alia, mesoporous electrodes.
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Affiliation(s)
- Andrew
J. Bagnall
- Department
of Chemistry-Ångström Laboratory, Uppsala University, SE-75120 Uppsala, Sweden
- Univ.
Grenoble Alpes, CNRS, CEA, IRIG, Laboratoire de Chimie et Biologie
des Métaux, 17
rue des Martyrs, F-38054 Grenoble, Cedex, France
| | - Nora Eliasson
- Department
of Chemistry-Ångström Laboratory, Uppsala University, SE-75120 Uppsala, Sweden
| | - Sofie Hansson
- Department
of Chemistry-Ångström Laboratory, Uppsala University, SE-75120 Uppsala, Sweden
| | - Murielle Chavarot-Kerlidou
- Univ.
Grenoble Alpes, CNRS, CEA, IRIG, Laboratoire de Chimie et Biologie
des Métaux, 17
rue des Martyrs, F-38054 Grenoble, Cedex, France
| | - Vincent Artero
- Univ.
Grenoble Alpes, CNRS, CEA, IRIG, Laboratoire de Chimie et Biologie
des Métaux, 17
rue des Martyrs, F-38054 Grenoble, Cedex, France
| | - Haining Tian
- Department
of Chemistry-Ångström Laboratory, Uppsala University, SE-75120 Uppsala, Sweden
| | - Leif Hammarström
- Department
of Chemistry-Ångström Laboratory, Uppsala University, SE-75120 Uppsala, Sweden
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4
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Cai B, Huang P, Fang Y, Tian H. Recyclable and Stable Porphyrin-Based Self-Assemblies by Electrostatic Force for Efficient Photocatalytic Organic Transformation. Adv Sci (Weinh) 2024:e2308469. [PMID: 38460154 DOI: 10.1002/advs.202308469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 01/19/2024] [Indexed: 03/11/2024]
Abstract
Development of efficient, stable, and recyclable photocatalysts for organic synthesis is vital for transformation of traditional thermal organic chemistry into green sustainable organic chemistry. In this work, the study reports an electrostatic approach to assemble meso-tetra (4-sulfonate phenyl) porphyrin (TPPS)tetra (4-sulfonate phenyl) porphyrin (TPPS) as a donor and benzyl viologen (BV) as an acceptor into stable and recyclable photocatalyst for an efficient organic transformation reaction - aryl sulfide oxidation. By use of the electrostatic TPPS-BV photocatalysts, 0.1 mmol aryl sulfide with electron-donating group can be completely transformed into aryl sulfoxide in 60 min without overoxidation into sulfone, rendering near 100% yield and selectivity. The photocatalyst can be recycled up to 95% when 10 mg amount is used. Mechanistic study reveals that efficient charge separation between TPPS and BV results in sufficient formation of superoxide which further reacts with the oxidized sulfide by the photocatalyst to produce the sulfoxide. This mechanistic pathway differs significantly from the previously proposed singlet oxygen-dominated process in homogeneous TPPS photocatalysis.
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Affiliation(s)
- Bin Cai
- Department of Chemistry-Ångström Lab, Uppsala University, Box 523, Uppsala, SE 751 20, Sweden
| | - Ping Huang
- Department of Chemistry-Ångström Lab, Uppsala University, Box 523, Uppsala, SE 751 20, Sweden
| | - Yuan Fang
- Department of Chemistry, KTH Royal Institute of Technology, Teknikringen 30-36, Stockholm, SE 100 44, Sweden
| | - Haining Tian
- Department of Chemistry-Ångström Lab, Uppsala University, Box 523, Uppsala, SE 751 20, Sweden
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5
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Axelsson M, Xia Z, Wang S, Cheng M, Tian H. Role of the Benzothiadiazole Unit in Organic Polymers on Photocatalytic Hydrogen Production. JACS Au 2024; 4:570-577. [PMID: 38425933 PMCID: PMC10900483 DOI: 10.1021/jacsau.3c00681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/22/2023] [Accepted: 01/02/2024] [Indexed: 03/02/2024]
Abstract
Organic polymers based on the donor-acceptor structure are a promising class of efficient photocatalysts for solar fuel production. Among these polymers, poly(9,9-dioctylfluorene-alt-1,2,3-benzothiadiazole) (PFBT) consisting of fluorene donor and benzothiadiazole acceptor units has shown good photocatalytic activity when it is prepared into polymer dots (Pdots) in water. In this work, we investigate the effect of the chemical environment on the activity of photocatalysis from PFBT Pdots for hydrogen production. This is carried out by comparing the samples with various concentrations of palladium under different pH conditions and with different sacrificial electron donors (SDs). Moreover, a model compound 1,2,3-benzothiadiazole di-9,9-dioctylfluorene (BTDF) is synthesized to investigate the mechanism for protonation of benzothiadiazole and its kinetics in the presence of an organic acid-salicylic acid by cyclic voltammetry. We experimentally show that benzothiadiazole in BTDF can rapidly react with protons with a fitted value of 0.1-5 × 1010 M-1 s-1 which should play a crucial role in the photocatalytic reaction with a polymer photocatalyst containing benzothiadiazole such as PFBT Pdots for hydrogen production in acidic conditions. This work gives insights into why organic polymers with benzothiadiazole work efficiently for photocatalytic hydrogen production.
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Affiliation(s)
- Martin Axelsson
- Department
of Chemistry-Ångström Laboratory, Uppsala University, Uppsala 75120, Sweden
| | - Ziyang Xia
- Institute
for Energy Research, Jiangsu University, Zhenjiang 212013, China
| | - Sicong Wang
- Department
of Chemistry-Ångström Laboratory, Uppsala University, Uppsala 75120, Sweden
| | - Ming Cheng
- Institute
for Energy Research, Jiangsu University, Zhenjiang 212013, China
| | - Haining Tian
- Department
of Chemistry-Ångström Laboratory, Uppsala University, Uppsala 75120, Sweden
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6
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Torres-Méndez C, Axelsson M, Tian H. Small Organic Molecular Electrocatalysts for Fuels Production. Angew Chem Int Ed Engl 2024; 63:e202312879. [PMID: 37905977 DOI: 10.1002/anie.202312879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/30/2023] [Accepted: 10/31/2023] [Indexed: 11/02/2023]
Abstract
In recent years, heterocyclic organic compounds have been explored as molecular electrocatalysts in relevant reactions for energy conversion and storage. Merging mimetics of biological systems that perform hydride transfer with rational synthetic chemical design has opened many opportunities for organic molecules to be tuned at the atomic level conferring them interesting reactivities. These molecular electrocatalysts represent an alternative to traditional metallic materials and metal complexes employed for water oxidation, hydrogen production, and carbon dioxide reduction. This minireview describes recent reports concerning design, catalytic activity and the mechanism of synthetic molecular electrocatalysts towards solar fuels production.
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Affiliation(s)
- Carlos Torres-Méndez
- Department of Chemistry-Ångström Laboratory, Uppsala University, SE-75120, Uppsala, Sweden
| | - Martin Axelsson
- Department of Chemistry-Ångström Laboratory, Uppsala University, SE-75120, Uppsala, Sweden
| | - Haining Tian
- Department of Chemistry-Ångström Laboratory, Uppsala University, SE-75120, Uppsala, Sweden
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7
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Lian B, Li Z, Wu N, Li M, Chen X, Zheng H, Gao M, Wang D, Sheng X, Tian H, Si L, Chi Z, Wang X, Lai Y, Sun T, Zhang Q, Kong Y, Long GV, Guo J, Cui C. Phase II clinical trial of neoadjuvant anti-PD-1 (toripalimab) combined with axitinib in resectable mucosal melanoma. Ann Oncol 2024; 35:211-220. [PMID: 37956739 DOI: 10.1016/j.annonc.2023.10.793] [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: 09/06/2023] [Revised: 10/16/2023] [Accepted: 10/19/2023] [Indexed: 11/15/2023] Open
Abstract
BACKGROUND The outcome of patients with resectable mucosal melanoma is poor. Toripalimab combined with axitinib has shown impressive results in metastatic mucosal melanoma with an objective response rate of 48.3% and a median progression-free survival of 7.5 months in a phase Ib trial. It was hypothesized that this combination administered in the neoadjuvant setting might induce a pathologic response in resectable mucosal melanoma, so we conducted this trial. PATIENTS AND METHODS This single-arm phase II trial enrolled patients with resectable mucosal melanoma. Patients received toripalimab 3 mg/kg once every 2 weeks (Q2W) plus axitinib 5 mg two times a day (b.i.d.) for 8 weeks as neoadjuvant therapy, then surgery and adjuvant toripalimab 3 mg/kg Q2W starting 2 ± 1weeks after surgery for 44 weeks. The primary endpoint was the pathologic response rate according to the International Neoadjuvant Melanoma Consortium recommendations. RESULTS Between August 2019 and October 2021, 29 patients were enrolled and received treatment, of whom 24 underwent resection. The median follow-up time was 34.2 months (95% confidence interval 20.4-48.0 months). The pathologic response rate was 33.3% (8/24; 4 pathological complete responses and 4 pathological partial responses). The median event-free survival for all patients was 11.1 months (95% confidence interval 5.3-16.9 months). The median overall survival was not reached. Neoadjuvant therapy was tolerable with 8 (27.5%) grade 3-4 treatment-related adverse events and no treatment-related deaths. Tissue samples of 17 patients at baseline and after surgery were collected (5 responders and 12 nonresponders). Multiplex immunohistochemistry demonstrated a significant increase in CD3+ (P = 0.0032) and CD3+CD8+ (P = 0.0038) tumor-infiltrating lymphocytes after neoadjuvant therapy, particularly in pathological responders. CONCLUSIONS Neoadjuvant toripalimab combined with axitinib in resectable mucosal melanoma demonstrated a promising pathologic response rate with significantly increased infiltrating CD3+ and CD3+CD8+ T cells after therapy.
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Affiliation(s)
- B Lian
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Renal Cancer and Melanoma, Peking University Cancer Hospital and Institute, Beijing
| | - Z Li
- Department of Pathology, Peking University Cancer Hospital and Institute, Beijing
| | - N Wu
- Department of Thoracic Surgery, Peking University Cancer Hospital and Institute, Beijing
| | - M Li
- Department of Gastrointestinal Surgery, Peking University Cancer Hospital and Institute, Beijing
| | - X Chen
- Department of Otorhinolaryngology, Key Laboratory of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing
| | - H Zheng
- Department of Gynecologic Oncology, Peking University Cancer Hospital and Institute, Beijing
| | - M Gao
- Department of Gynecologic Oncology, Peking University Cancer Hospital and Institute, Beijing
| | - D Wang
- Peking University School of Stomatology, Beijing
| | - X Sheng
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Renal Cancer and Melanoma, Peking University Cancer Hospital and Institute, Beijing
| | - H Tian
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Renal Cancer and Melanoma, Peking University Cancer Hospital and Institute, Beijing
| | - L Si
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Renal Cancer and Melanoma, Peking University Cancer Hospital and Institute, Beijing
| | - Z Chi
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Renal Cancer and Melanoma, Peking University Cancer Hospital and Institute, Beijing
| | - X Wang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Renal Cancer and Melanoma, Peking University Cancer Hospital and Institute, Beijing
| | - Y Lai
- Department of Pathology, Peking University Cancer Hospital and Institute, Beijing
| | - T Sun
- The Medical Department, Jiangsu Simcere Diagnostics Co., Ltd, Nanjing, China
| | - Q Zhang
- The Medical Department, Jiangsu Simcere Diagnostics Co., Ltd, Nanjing, China
| | - Y Kong
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Renal Cancer and Melanoma, Peking University Cancer Hospital and Institute, Beijing
| | - G V Long
- Melanoma Institute of Australia, The University of Sydney, and Royal North Shore and Mater Hospitals, Sydney, Australia
| | - J Guo
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Renal Cancer and Melanoma, Peking University Cancer Hospital and Institute, Beijing
| | - C Cui
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Renal Cancer and Melanoma, Peking University Cancer Hospital and Institute, Beijing.
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8
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Tian H, Chao YC, Hu J, Song YL. [Immunotherapy advances for lung cancer combined with chronic obstructive pulmonary disease]. Zhonghua Jie He He Hu Xi Za Zhi 2024; 47:70-74. [PMID: 38062699 DOI: 10.3760/cma.j.cn112147-20230905-00142] [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: 12/30/2023]
Abstract
Lung cancer is a major public health problem worldwide, with high rates of morbidity and mortality. It often coexists with chronic obstructive pulmonary disease (COPD), the diagnosis and management of which often receives insufficient attention. In particular, the presence of COPD has significant implications for the clinical management of lung cancer patients. This review systematically assesses the influence of COPD on the efficacy of immunotherapy and the occurrence of immune-related adverse events in patients with lung cancer, identifies existing challenges and proposes avenues for future research in this field.
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Affiliation(s)
- H Tian
- Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital Fudan University, Shanghai 200032, China
| | - Y C Chao
- Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital Fudan University, Shanghai 200032, China
| | - J Hu
- Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital Fudan University, Department of Pulmonary and Critical Care Medicine, Shanghai Geriatric Medical Center, Shanghai 201100, China
| | - Y L Song
- Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital Fudan University, Shanghai Institute of Infectious Disease and Biosecurity, Key Laboratory of Chemical Injury, Emergency and Critical Medicine of Shanghai Municipal Health Commission, Center of Emergency and Critical Medicine, Jinshan Hospital of Fudan University, Shanghai 201508, China
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9
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Cai B, Axelsson M, Zhan S, Pavliuk MV, Wang S, Li J, Tian H. Organic Polymer Dots Photocatalyze CO 2 Reduction in Aqueous Solution. Angew Chem Int Ed Engl 2023; 62:e202312276. [PMID: 37728510 DOI: 10.1002/anie.202312276] [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: 08/22/2023] [Revised: 09/19/2023] [Accepted: 09/20/2023] [Indexed: 09/21/2023]
Abstract
Developing low-cost and efficient photocatalysts to convert CO2 into valuable fuels is desirable to realize a carbon-neutral society. In this work, we report that polymer dots (Pdots) of poly[(9,9'-dioctylfluorenyl-2,7-diyl)-co-(1,4-benzo-thiadiazole)] (PFBT), without adding any extra co-catalyst, can photocatalyze reduction of CO2 into CO in aqueous solution, rendering a CO production rate of 57 μmol g-1 h-1 with a detectable selectivity of up to 100 %. After 5 cycles of CO2 re-purging experiments, no distinct decline in CO amount and reaction rate was observed, indicating the promising photocatalytic stability of PFBT Pdots in the photocatalytic CO2 reduction reaction. A mechanistic study reveals that photoexcited PFBT Pdots are reduced by sacrificial donor first, then the reduced PFBT Pdots can bind CO2 and reduce it into CO via their intrinsic active sites. This work highlights the application of organic Pdots for CO2 reduction in aqueous solution, which therefore provides a strategy to develop highly efficient and environmentally friendly nanoparticulate photocatalysts for CO2 reduction.
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Affiliation(s)
- Bin Cai
- Department of Chemistry-Ångström Laboratory, Uppsala University, Box 523, SE 751 20, Uppsala, Sweden
| | - Martin Axelsson
- Department of Chemistry-Ångström Laboratory, Uppsala University, Box 523, SE 751 20, Uppsala, Sweden
| | - Shaoqi Zhan
- Department of Chemistry-BMC, Uppsala University, BMC Box 576, S-751, 23, Uppsala, Sweden
| | - Mariia V Pavliuk
- Department of Chemistry-Ångström Laboratory, Uppsala University, Box 523, SE 751 20, Uppsala, Sweden
| | - Sicong Wang
- Department of Chemistry-Ångström Laboratory, Uppsala University, Box 523, SE 751 20, Uppsala, Sweden
| | - Jingguo Li
- Department of Chemistry-Ångström Laboratory, Uppsala University, Box 523, SE 751 20, Uppsala, Sweden
| | - Haining Tian
- Department of Chemistry-Ångström Laboratory, Uppsala University, Box 523, SE 751 20, Uppsala, Sweden
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10
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Yang Y, Liu LN, Tian H, Cooper AI, Sprick RS. Making the connections: physical and electric interactions in biohybrid photosynthetic systems. Energy Environ Sci 2023; 16:4305-4319. [PMID: 38013927 PMCID: PMC10566253 DOI: 10.1039/d3ee01265d] [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] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 08/14/2023] [Indexed: 11/29/2023]
Abstract
Biohybrid photosynthesis systems, which combine biological and non-biological materials, have attracted recent interest in solar-to-chemical energy conversion. However, the solar efficiencies of such systems remain low, despite advances in both artificial photosynthesis and synthetic biology. Here we discuss the potential of conjugated organic materials as photosensitisers for biological hybrid systems compared to traditional inorganic semiconductors. Organic materials offer the ability to tune both photophysical properties and the specific physicochemical interactions between the photosensitiser and biological cells, thus improving stability and charge transfer. We highlight the state-of-the-art and opportunities for new approaches in designing new biohybrid systems. This perspective also summarises the current understanding of the underlying electron transport process and highlights the research areas that need to be pursued to underpin the development of hybrid photosynthesis systems.
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Affiliation(s)
- Ying Yang
- Materials Innovation Factory and Department of Chemistry, University of Liverpool Liverpool L7 3NY UK
- Institute of Systems, Molecular and Integrative Biology, University of Liverpool Liverpool L69 7ZB UK
| | - Lu-Ning Liu
- Institute of Systems, Molecular and Integrative Biology, University of Liverpool Liverpool L69 7ZB UK
- College of Marine Life Sciences, and Frontiers Science Centre for Deep Ocean Multispheres and Earth System, Ocean University of China 266003 Qingdao P. R. China
| | - Haining Tian
- Department of Chemistry-Ångström Laboratories, Uppsala University Box 523 751 20 Uppsala Sweden
| | - Andrew I Cooper
- Materials Innovation Factory and Department of Chemistry, University of Liverpool Liverpool L7 3NY UK
| | - Reiner Sebastian Sprick
- Department of Pure and Applied Chemistry, University of Strathclyde Thomas Graham Building, 295 Cathedral Street Glasgow G1 1XL UK
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11
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Cai B, Song H, Brnovic A, Pavliuk MV, Hammarström L, Tian H. Promoted Charge Separation and Long-Lived Charge-Separated State in Porphyrin-Viologen Dyad Nanoparticles. J Am Chem Soc 2023; 145:18687-18692. [PMID: 37582183 PMCID: PMC10472426 DOI: 10.1021/jacs.3c04372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Indexed: 08/17/2023]
Abstract
Developing light-harvesting systems with efficient photoinduced charge separation and long-lived charge-separated (CS) state is desirable but still challenging. In this study, we designed a zinc porphyrin photosensitizer covalently linked with viologen (ZnP-V) that can be prepared into nanoparticles in aqueous solution. In DMF solution, the monomeric ZnP-V dyads show no electron transfer between the ZnP and viologen units. In contrast, the ZnP-V nanoparticles in aqueous solution show fast charge separation with a CS state lifetime of up to 4.3 ms. This can be attributed to charge hopping induced by aggregation or distance modification between the donor and acceptor induced by electronic interaction. Nevertheless, the lifetime of the CS state is orders of magnitude longer than for molecular aggregates reported previously. The ZnP-V nanoparticles show enhanced photocatalytic hydrogen production as compared to the ZnP nanoparticles and still hold promise for other applications such as photovoltaic devices and photoredox catalysis.
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Affiliation(s)
- Bin Cai
- Department
of Chemistry-Ångström Laboratory, Uppsala University, Box 523, SE 751 20 Uppsala, Sweden
| | - Hongwei Song
- Department
of Chemistry-Ångström Laboratory, Uppsala University, Box 523, SE 751 20 Uppsala, Sweden
| | - Andjela Brnovic
- Department
of Chemistry-Ångström Laboratory, Uppsala University, Box 523, SE 751 20 Uppsala, Sweden
| | - Mariia V. Pavliuk
- Department
of Chemistry-Ångström Laboratory, Uppsala University, Box 523, SE 751 20 Uppsala, Sweden
| | - Leif Hammarström
- Department
of Chemistry-Ångström Laboratory, Uppsala University, Box 523, SE 751 20 Uppsala, Sweden
| | - Haining Tian
- Department
of Chemistry-Ångström Laboratory, Uppsala University, Box 523, SE 751 20 Uppsala, Sweden
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12
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Sun SN, Tian H. [Application of cardiopulmonary exercise test in cardiovascular disease in children]. Zhonghua Er Ke Za Zhi 2023; 61:745-748. [PMID: 37528021 DOI: 10.3760/cma.j.cn112140-20230118-00043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Affiliation(s)
- S N Sun
- Cardiovascular Center, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - H Tian
- Cardiovascular Center, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
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13
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Li Z, Wang J, Wang Y, Li Q, Chen X, Wang Y, Tian H, Mao Y, Song L, Huang X, Wang Z, Zhang X. Development of a Lateral Flow Immunoassay Based on a Highly Specific Monoclonal Antibody To Detect 4-Methylaminoantipyrine. J Agric Food Chem 2023. [PMID: 37406351 DOI: 10.1021/acs.jafc.3c02421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/07/2023]
Abstract
To avoid false-positive results in immunoassays due to cross-reactivity of antibodies with structural analogues, especially metabolites of target compounds, the preparation of highly specific antibodies is crucial. Preserving the characteristic structure of a target compound when designing a hapten is important when preparing highly specific antibodies. Here, we designed a novel hapten, 4-(((1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4yl)amino)methyl)benzoic acid, named AA-BA, to improve the specificity of antibodies for detection of 4-methylaminoantipyrine (MAA), a residual marker of dipyrone, an important antipyretic-analgesic and anti-inflammatory drug. The structural features of the hapten remained almost the same as those of MAA. After experimental validation, monoclonal antibody 6A4 (mAb 6A4) was prepared with the half maximal inhibitory concentration (IC50) value of 4.03 ng/mL and negligible cross-reactivity with dipyrone metabolites and other antibiotics. In addition, a specific lateral flow immunoassay (LFA) strip based on colloidal gold was developed for screening MAA with a cutoff value of 25 ng/mL in milk. The developed LFA is a useful tool for rapid and accurate detection of MAA.
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Affiliation(s)
- Zizhe Li
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, Henan 450002, People's Republic of China
| | - Jinkui Wang
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, Henan 450002, People's Republic of China
| | - Youyi Wang
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, Henan 450002, People's Republic of China
| | - Qingyue Li
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, Henan 450002, People's Republic of China
| | - Xiaoyang Chen
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, Henan 450002, People's Republic of China
| | - Yu Wang
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, Henan 450002, People's Republic of China
| | - Haining Tian
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, Henan 450002, People's Republic of China
| | - Yexuan Mao
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, Henan 450002, People's Republic of China
| | - Lianjun Song
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, Henan 450002, People's Republic of China
| | - Xianqing Huang
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, Henan 450002, People's Republic of China
| | - Zhanhui Wang
- National Key Laboratory of Veterinary Public Health Security, Beijing Key Laboratory of Detection Technology for Animal Derived Food Safety, College of Veterinary Medicine, China Agricultural University, Beijing 100193, People's Republic of China
| | - Xiya Zhang
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, Henan 450002, People's Republic of China
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14
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Cao S, Guan L, Li C, Sun G, Tian H, Sun R, Tu J, Meng Y, Ma R. Effects of Dietary Protein and Lipid Levels on Growth, Metabolism, Antioxidative Capacity, and Fillet Quality of Adult Triploid Rainbow Trout Farmed in Net Cage. Aquac Nutr 2023; 2023:4733343. [PMID: 37288329 PMCID: PMC10243945 DOI: 10.1155/2023/4733343] [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] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/16/2023] [Accepted: 05/17/2023] [Indexed: 06/09/2023]
Abstract
The research is aimed at investigating the effects of dietary protein and lipid levels on adult triploid rainbow trout growth performance, feed utilization, digestive and metabolic enzyme activities, antioxidative capacity, and fillet quality. Nine diets containing three dietary protein levels (DP) (300, 350, and 400 g kg-1) and three dietary lipid levels (DL) (200, 250, and 300 g kg-1) were prepared using a 3 × 3 factorial design. In freshwater cages, 13,500 adult female triploid rainbow trout (3.2 ± 0.1 kg) were cultured for 77 days. Triplicate cages (500 fish per cage) were used as repetitions of each experimental diet. The findings revealed that as DP increased to 400 g kg-1 and DL raised to 300 g kg-1, the weight gain ratio (WGR) elevated significantly (P < 0.05). However, when DP ≥ 350 g kg-1, WGR was similar in the DL250 and DL300 groups. As DP raised to 350 g kg-1, the feed conversion ratio (FCR) notably decreased (P < 0.05). In the DP350DL300 group, lipids had a protein-sparing impact. High DP diet (400 g kg-1) generally improved fish health status by increasing antioxidant capacity in the liver and intestine. A high DL diet (300 g kg-1) showed no harmful effect on hepatic health based on plasma levels of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) and antioxidant capacity in the liver. For fillet quality, a high DP diet could increase fillet yield, improve fillet hardness, springiness, and water-holding capacity values, and inhibit the production of off-flavors caused by n-6 fatty acids. A high DL diet could increase odor intensity, and EPA, DHA, and n-3 fatty acid concentrations decrease the thrombogenicity index value. The maximum fillet redness value was discovered in the DP400DL300 group. Overall, for adult triploid rainbow trout (≥3 kg), the minimum recommended DP and DL according to growth performance were 400 and 250 g kg-1, respectively; DP and DL based on feed utilization were 350 and 200 g kg-1, respectively; DP and DL based on fillet quality were 400 and 300 g kg-1, respectively.
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Affiliation(s)
- Songjing Cao
- State Key Laboratory of Plateau Ecology and Agriculture, College of Ecological Environmental Engineering, Qinghai University, Xining 810016, China
| | - Lingling Guan
- State Key Laboratory of Plateau Ecology and Agriculture, College of Ecological Environmental Engineering, Qinghai University, Xining 810016, China
| | - Changzhong Li
- State Key Laboratory of Plateau Ecology and Agriculture, College of Ecological Environmental Engineering, Qinghai University, Xining 810016, China
| | - Guoliang Sun
- State Key Laboratory of Plateau Ecology and Agriculture, College of Ecological Environmental Engineering, Qinghai University, Xining 810016, China
| | - Haining Tian
- State Key Laboratory of Plateau Ecology and Agriculture, College of Ecological Environmental Engineering, Qinghai University, Xining 810016, China
| | - Ruijian Sun
- Tongwei Agricultural Development Co., LTD., Chengdu 610000, China
| | - Jun Tu
- Tongwei Agricultural Development Co., LTD., Chengdu 610000, China
| | - Yuqiong Meng
- State Key Laboratory of Plateau Ecology and Agriculture, College of Ecological Environmental Engineering, Qinghai University, Xining 810016, China
| | - Rui Ma
- State Key Laboratory of Plateau Ecology and Agriculture, College of Ecological Environmental Engineering, Qinghai University, Xining 810016, China
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15
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Ye C, Cheng H, Wrede S, Diring S, Tian H, Odobel F, Hammarström L. Charge Recombination Deceleration by Lateral Transfer of Electrons in Dye-Sensitized NiO Photocathode. J Am Chem Soc 2023; 145:11067-11073. [PMID: 37191461 DOI: 10.1021/jacs.3c00269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Control of charge separation and recombination is critical for dye-sensitized solar cells and photoelectrochemical cells, and for p-type cells, the latter process limits their photovoltaic performance. We speculated that the lateral electron hopping between dyes on a p-type semiconductor surface can effectively separate electrons and holes in space and retard recombination. Thus, device designs where lateral electron hopping is promoted can lead to enhanced cell performance. Herein, we present an indirect proof by involving a second dye to monitor the effect of electron hopping after hole injection into the semiconductor. In mesoporous NiO films sensitized with peryleneimide (PMI) or naphthalene diimide (NDI) dyes, dye excitation led to ultrafast hole injection into NiO from either excited PMI* (τ < 200 fs) or NDI* (τ = 1.2 ps). In cosensitized films, surface electron transfer from PMI- to NDI was rapid (τ = 24 ps). Interestingly, the subsequent charge recombination (ps-μs) with NiO holes was much slower when NDI- was generated by electron transfer from PMI- than when NDI was excited directly. We therefore indicate that the charge recombination is slowed down after the charge hopping from the original PMI sites to the NDI sites. The experimental results supported our hypothesis and revealed important information on the charge carrier kinetics for the dye-sensitized NiO photoelectrode system.
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Affiliation(s)
- Chen Ye
- Department of Chemistry-Ångström Laboratories, Uppsala University, Uppsala SE75120, Sweden
| | - Haoliang Cheng
- Department of Chemistry-Ångström Laboratories, Uppsala University, Uppsala SE75120, Sweden
| | - Sina Wrede
- Department of Chemistry-Ångström Laboratories, Uppsala University, Uppsala SE75120, Sweden
| | - Stéphane Diring
- CNRS, CEISAM UMR 6230, Université de Nantes, F-44000 Nantes, France
| | - Haining Tian
- Department of Chemistry-Ångström Laboratories, Uppsala University, Uppsala SE75120, Sweden
| | - Fabrice Odobel
- CNRS, CEISAM UMR 6230, Université de Nantes, F-44000 Nantes, France
| | - Leif Hammarström
- Department of Chemistry-Ångström Laboratories, Uppsala University, Uppsala SE75120, Sweden
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Yin J, Tian H, Kong DQ, Li Y, Gu CY, Wu DP, Yu ZQ. [A combined regimen based on bortezomib and glucocorticoids for 6 patients with recurrent/refractory immune thrombotic thrombocytopenic purpura]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:413-417. [PMID: 37550192 PMCID: PMC10440622 DOI: 10.3760/cma.j.issn.0253-2727.2023.05.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Indexed: 08/09/2023]
Abstract
Objective: To observe the efficacy and adverse reactions of a combination therapy regimen based on bortezomib and glucocorticoids in recurrent/refractory immune thrombocytopenic purpura (iTTP) . Methods: Six patients with recurrent/refractory TTP were included and treated with a glucocorticoid and two courses of bortezomib-based regimen. The clinical remission status of patients, changes in ADAMTS13 activity/ADAMTS13 inhibitor, and the occurrence of treatment-related adverse reactions were observed. Results: Of the 6 patients, 2 were males and 4 were females, with a median age of 21.5 (18-68) years. Refractory TTP was found in 1 case and recurrent TTP in 5 cases. Glucocorticoids were administered with reference to prednisone at 1 mg·kg(-1)·d(-1), and gradually reduced in dosage after achieving clinical remission. Bortezomib is subcutaneously administered at 1.3 mg/m(2) on days 1, 4, 8, and 11 with a 28-day treatment course consisting of 2 courses. Six patients achieved clinical remission after receiving bortezomib as the main treatment. ADMATS13 activity returned to normal in all patients with TTP after treatment, and the ADAMTS13 inhibitor turned negative. Thrombocytopenia is the most common adverse reaction after treatment, with other adverse reactions, including peripheral neuritis and abdominal pain, but ultimately all patients returned to normal. In a median follow-up of 26 (9-41) months, 5 patients maintained sustained remission, and 1 patient relapsed after 16 months of bortezomib treatment. Conclusion: Combination therapy of bortezomib and glucocorticoids has a satisfactory therapeutic effect and controllable adverse reactions for recurrent/refractory iTTP.
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Affiliation(s)
- J Yin
- Department of Hematology, The First Affiliated Hospital of Soochow University, National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, NHC Key Laboratory of Thrombosis and Hemostasis, Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China
| | - H Tian
- Department of Hematology, The First Affiliated Hospital of Soochow University, National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, NHC Key Laboratory of Thrombosis and Hemostasis, Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China
| | - D Q Kong
- Department of Hematology, The First Affiliated Hospital of Soochow University, National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, NHC Key Laboratory of Thrombosis and Hemostasis, Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China
| | - Y Li
- Department of Hematology, The First Affiliated Hospital of Soochow University, National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, NHC Key Laboratory of Thrombosis and Hemostasis, Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China
| | - C Y Gu
- Department of Hematology, The First Affiliated Hospital of Soochow University, National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, NHC Key Laboratory of Thrombosis and Hemostasis, Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China
| | - D P Wu
- Department of Hematology, The First Affiliated Hospital of Soochow University, National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, NHC Key Laboratory of Thrombosis and Hemostasis, Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China
| | - Z Q Yu
- Department of Hematology, The First Affiliated Hospital of Soochow University, National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, NHC Key Laboratory of Thrombosis and Hemostasis, Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China
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Wrede S, Cai B, Kumar A, Ott S, Tian H. Lateral Electron and Hole Hopping between Dyes on Mesoporous ZrO 2: Unexpected Influence of Solvents with a Low Dielectric Constant. J Am Chem Soc 2023; 145:11472-11476. [PMID: 37127024 DOI: 10.1021/jacs.3c01333] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Lateral intermolecular charge transfer between photosensitizers on metal oxide substrates is important for the understanding on the overall working principles of dye-sensitized systems. Such studies usually concentrate on either hole or electron transfer separately and are conducted in solvents with a high dielectric constant (εs) that are known, however, to show a drastic decrease of the local dielectric constant close to the metal oxide surface. In the present study, both hole and electron hopping between organic donor-acceptor photosensitizers was experimentally investigated on PB6 dye-sensitized mesoporous ZrO2 films. The donor (close to the surface) and acceptor (away from surface) subunit of the PB6 dye were observed to be involved in hole and electron hopping, respectively. Hole and electron transfer kinetics were found to differ remarkably in high-εs solvents, but similar in solvents with εs < 12. This finding indicates that low-εs solvents maintain similar local dielectric constant values close to, and further away from, the semiconductor surface, which is different from the previously observed behavior of high dielectric constant solvents at a metal oxide interface.
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Affiliation(s)
- Sina Wrede
- Department of Chemistry-Ångström Laboratory, Uppsala University, SE-75120 Uppsala, Sweden
| | - Bin Cai
- Department of Chemistry-Ångström Laboratory, Uppsala University, SE-75120 Uppsala, Sweden
| | - Amol Kumar
- Department of Chemistry-Ångström Laboratory, Uppsala University, SE-75120 Uppsala, Sweden
| | - Sascha Ott
- Department of Chemistry-Ångström Laboratory, Uppsala University, SE-75120 Uppsala, Sweden
| | - Haining Tian
- Department of Chemistry-Ångström Laboratory, Uppsala University, SE-75120 Uppsala, Sweden
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18
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Pavliuk MV, Wrede S, Tian H. Phenoxazine-based small molecule heterojunction nanoparticles for photocatalytic hydrogen production. Chem Commun (Camb) 2023; 59:5611-5614. [PMID: 37078914 DOI: 10.1039/d3cc01013a] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/21/2023]
Abstract
A phenoxazine-based small organic molecular donor POZ-M is designed and synthesized to prepare organic heterojunction nanoparticles (NPs) with a small molecular acceptor ITIC for photocatalytic hydrogen production, giving a reaction rate of up to 63 mmol g-1 h-1. A beneficial molecular design strategy highlights the role of miscibility between POZ-M and ITIC, which is necessary to achieve satisfactory charge separation at the donor/acceptor interface.
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Affiliation(s)
- Mariia V Pavliuk
- Department of Chemistry-Ångström Laboratory, Physical Chemistry, Uppsala University, Uppsala, Sweden.
| | - Sina Wrede
- Department of Chemistry-Ångström Laboratory, Physical Chemistry, Uppsala University, Uppsala, Sweden.
| | - Haining Tian
- Department of Chemistry-Ångström Laboratory, Physical Chemistry, Uppsala University, Uppsala, Sweden.
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19
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Liu A, Wang S, Song H, Liu Y, Gedda L, Edwards K, Hammarström L, Tian H. Excited-state and charge-carrier dynamics in binary conjugated polymer dots towards efficient photocatalytic hydrogen evolution. Phys Chem Chem Phys 2023; 25:2935-2945. [PMID: 36606387 DOI: 10.1039/d2cp04204e] [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: 12/23/2022]
Abstract
Aqueous dispersed conjugated polymer dots (Pdots) have shown promising application in photocatalytic hydrogen evolution. To efficiently extract photogenerated charges from type-II heterojunction Pdots for hydrogen evolution, the mechanistic study of photophysical processes is essential for Pdot optimization. Within this work, we use a PFODTBT donor (D) polymer and an ITIC small molecule acceptor (A) as a donor/acceptor (D/A) model system to study their excited states and charge/energy transfer dynamics via steady-state and time-resolved photoluminescence spectroscopy, respectively. Charge-carrier generation and the recombination dynamics of binary Pdots with different D/A ratios were followed using femtosecond transient absorption spectroscopy. A significant spectral relaxation of photoluminescence was observed for individual D Pdots, implying an energetic disorder by nature. However, this was not seen for charge carriers in binary Pdots, probably due to the ultrafast charge generation process at an early time (<200 fs). The results showed slower charge recombination upon increasing the ratio of ITIC in binary Pdots, which further resulted in an enhanced photocatalytic hydrogen evolution, twice that as compared to individual D Pdots. Although binary Pdots prepared via the nanoprecipitation method exhibit a large interfacial area that allows high charge generation efficiencies, it also provides a high possibility for charge recombination and limits the further utilization of free charges. Therefore, for the future design of type-II heterojunction Pdots, suppressing the charge carrier recombination via increasing the crystallinity and proper phase segregation is necessary for enhanced photocatalytic hydrogen evolution.
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Affiliation(s)
- Aijie Liu
- Department of Chemistry-Ångström Lab., Box 523, SE 751 20, Uppsala University, Sweden.
| | - Sicong Wang
- Department of Chemistry-Ångström Lab., Box 523, SE 751 20, Uppsala University, Sweden.
| | - Hongwei Song
- Department of Chemistry-Ångström Lab., Box 523, SE 751 20, Uppsala University, Sweden.
| | - Yawen Liu
- Department of Chemistry-Ångström Lab., Box 523, SE 751 20, Uppsala University, Sweden.
| | - Lars Gedda
- Department of Chemistry-Ångström Lab., Box 523, SE 751 20, Uppsala University, Sweden.
| | - Katarina Edwards
- Department of Chemistry-Ångström Lab., Box 523, SE 751 20, Uppsala University, Sweden.
| | - Leif Hammarström
- Department of Chemistry-Ångström Lab., Box 523, SE 751 20, Uppsala University, Sweden.
| | - Haining Tian
- Department of Chemistry-Ångström Lab., Box 523, SE 751 20, Uppsala University, Sweden.
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20
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Lyu XP, Yin J, Kong DQ, Tian H, Li Y, Qyu Q, Su J, Cao LJ, Bai X, Yu ZQ, Wang ZY, Wu DP, Ruan CG. [Clinical diagnosis and treatment of hereditary thrombocytopenia and purpura: a report of five cases and literature review]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:43-47. [PMID: 36987722 PMCID: PMC10067373 DOI: 10.3760/cma.j.issn.0253-2727.2023.01.008] [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] [Indexed: 03/30/2023]
Abstract
Objective: To report the clinical manifestations and laboratory features of five patients with congenital thrombotic thrombocytopenic purpura (cTTP) and explore its standardized clinical diagnosis and treatment along with a review of literature. Methods: Clinical data of patients, such as age of onset, disease manifestation, personal history, family history, and misdiagnosed disease, were collected. Treatment outcomes, therapeutic effects of plasma infusion, and organ function evaluation were observed. The relationship among the clinical manifestations, treatment outcomes, and ADAMTS13 gene mutation of patients with cTTP was analyzed. Additionally, detection of ADAMTS13 activity and analysis of ADAMTS13 gene mutation were explored. Results: The age of onset of cTTP was either in childhood or adulthood except in one case, which was at the age of 1. The primary manifestations were obvious thrombocytopenia, anemia, and different degrees of nervous system involvement. Most of the patients were initially suspected of having immune thrombocytopenia. Acute cTTP was induced by pregnancy and infection in two and one case, respectively. ADAMTS13 gene mutation was detected in all cases, and there was an inherent relationship between the mutation site, clinical manifestations, and degree of organ injury. Therapeutic or prophylactic plasma transfusion was effective for treating cTTP. Conclusions: The clinical manifestations of cTTP vary among individuals, resulting in frequent misdiagnosis that delays treatment. ADAMTS13 activity detection in plasma and ADAMTS13 gene mutation analysis are important bases to diagnose cTTP. Prophylactic plasma transfusion is vital to prevent the onset of the disease.
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Affiliation(s)
- X P Lyu
- Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Disease, NHC Key Laboratory of Thrombosis and Hemostasis, The First Affiliated Hospital of Soochow University, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215006, China
| | - J Yin
- Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Disease, NHC Key Laboratory of Thrombosis and Hemostasis, The First Affiliated Hospital of Soochow University, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215006, China
| | - D Q Kong
- Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Disease, NHC Key Laboratory of Thrombosis and Hemostasis, The First Affiliated Hospital of Soochow University, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215006, China
| | - H Tian
- Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Disease, NHC Key Laboratory of Thrombosis and Hemostasis, The First Affiliated Hospital of Soochow University, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215006, China
| | - Y Li
- Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Disease, NHC Key Laboratory of Thrombosis and Hemostasis, The First Affiliated Hospital of Soochow University, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215006, China
| | - Q Qyu
- Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Disease, NHC Key Laboratory of Thrombosis and Hemostasis, The First Affiliated Hospital of Soochow University, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215006, China
| | - J Su
- Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Disease, NHC Key Laboratory of Thrombosis and Hemostasis, The First Affiliated Hospital of Soochow University, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215006, China
| | - L J Cao
- Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Disease, NHC Key Laboratory of Thrombosis and Hemostasis, The First Affiliated Hospital of Soochow University, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215006, China
| | - X Bai
- Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Disease, NHC Key Laboratory of Thrombosis and Hemostasis, The First Affiliated Hospital of Soochow University, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215006, China
| | - Z Q Yu
- Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Disease, NHC Key Laboratory of Thrombosis and Hemostasis, The First Affiliated Hospital of Soochow University, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215006, China
| | - Z Y Wang
- Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Disease, NHC Key Laboratory of Thrombosis and Hemostasis, The First Affiliated Hospital of Soochow University, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215006, China
| | - D P Wu
- Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Disease, NHC Key Laboratory of Thrombosis and Hemostasis, The First Affiliated Hospital of Soochow University, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215006, China
| | - C G Ruan
- Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Disease, NHC Key Laboratory of Thrombosis and Hemostasis, The First Affiliated Hospital of Soochow University, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215006, China
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21
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Yu W, Pavliuk MV, Liu A, Zeng Y, Xia S, Huang Y, Bai H, Lv F, Tian H, Wang S. Photosynthetic Polymer Dots-Bacteria Biohybrid System Based on Transmembrane Electron Transport for Fixing CO 2 into Poly-3-hydroxybutyrate. ACS Appl Mater Interfaces 2023; 15:2183-2191. [PMID: 36563111 DOI: 10.1021/acsami.2c18831] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Organic semiconductor-microbial photosynthetic biohybrid systems show great potential in light-driven biosynthesis. In such a system, an organic semiconductor is used to harvest solar energy and generate electrons, which can be further transported to microorganisms with a wide range of metabolic pathways for final biosynthesis. However, the lack of direct electron transport proteins in existing microorganisms hinders the hybrid system of photosynthesis. In this work, we have designed a photosynthetic biohybrid system based on transmembrane electron transport that can effectively deliver the electrons from organic semiconductor across the cell wall to the microbe. Biocompatible organic semiconductor polymer dots (Pdots) are used as photosensitizers to construct a ternary synergistic biochemical factory in collaboration with Ralstonia eutropha H16 (RH16) and electron shuttle neutral red (NR). Photogenerated electrons from Pdots promote the proportion of nicotinamide adenine dinucleotide phosphate (NADPH) through NR, driving the Calvin cycle of RH16 to convert CO2 into poly-3-hydroxybutyrate (PHB), with a yield of 21.3 ± 3.78 mg/L, almost 3 times higher than that of original RH16. This work provides a concept of an integrated photoactive biological factory based on organic semiconductor polymer dots/bacteria for valuable chemical production only using solar energy as the energy input.
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Affiliation(s)
- Wen Yu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- College of Chemistry, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Mariia V Pavliuk
- Department of Chemistry - Ångström Laboratory, Physical Chemistry, Uppsala University, Uppsala 75120, Sweden
| | - Aijie Liu
- Department of Chemistry - Ångström Laboratory, Physical Chemistry, Uppsala University, Uppsala 75120, Sweden
| | - Yue Zeng
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Shengpeng Xia
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- College of Chemistry, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yiming Huang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Haotian Bai
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Fengting Lv
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Haining Tian
- Department of Chemistry - Ångström Laboratory, Physical Chemistry, Uppsala University, Uppsala 75120, Sweden
| | - Shu Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- College of Chemistry, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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22
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Wrede S, He L, Boschloo G, Hammarström L, Kloo L, Tian H. Electron-hopping across dye-sensitized mesoporous NiO surfaces. Phys Chem Chem Phys 2022; 24:29850-29861. [PMID: 36468421 DOI: 10.1039/d2cp03249j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
To gain a deeper understanding of the underlying charge processes in dye sensitized photocathodes, lateral electron hopping across dye-sensitized NiO photocathodes was investigated. For dye-sensitized systems, hole hopping across photoanodes has been studied extensively in the literature but no expansive studies on electron hopping in sensitized photocathodes exist today. Therefore, an organic p-type dye (TIP) with donor-linker-acceptor design, showing high stability and electrochemical reversibility, was used to study the electron transfer dynamics (electron-hopping) between dyes with temperature dependent spectroelectrochemistry and computational simulations. Besides intermolecular electron-hopping across the surface with a rate constant in the order of 105 s-1, our results show a second electron hopping pathway between NiO surface states with a rate constant in the order of 107 s-1, which precedes the electron hopping between the dyes. Upon application of a potential step negative enough to reduce both the dye and NiO surface states, the majority of NiO surface states need to be reduced before intermolecular electron transfer can take place. The results indicate that, in contrast to sensitized photoanodes where intermolecular charge transfer is known to influence recombination kinetics, intermolecular charge transport processes in TIP dye sensitized NiO photocathodes is less relevant because the fast electron transport between NiO surface states likely dominates recombination kinetics.
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Affiliation(s)
- Sina Wrede
- Department of Chemistry-Ångström Laboratory, Uppsala University, SE-75120 Uppsala, Sweden.
| | - Lanlan He
- Division of Applied Physical Chemistry, Centre of Molecular Devices, Department of Chemistry, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden.
| | - Gerrit Boschloo
- Department of Chemistry-Ångström Laboratory, Uppsala University, SE-75120 Uppsala, Sweden.
| | - Leif Hammarström
- Department of Chemistry-Ångström Laboratory, Uppsala University, SE-75120 Uppsala, Sweden.
| | - Lars Kloo
- Division of Applied Physical Chemistry, Centre of Molecular Devices, Department of Chemistry, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden.
| | - Haining Tian
- Department of Chemistry-Ångström Laboratory, Uppsala University, SE-75120 Uppsala, Sweden.
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23
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Jin LR, Li CC, Chen C, Wang Y, Wang Y, He M, Ding SN, Wei MW, Tian H, Kong XX, Dong C, Zhou L, Peng JF, Wang ZG, Zhu FC, Zhu LG. [Kinetics of SARS-CoV-2-specific antibodies among inactivated COVID-19 vaccine recipients, SARS-CoV-2 natural infection cases, and breakthrough cases]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:1834-1837. [PMID: 36536574 DOI: 10.3760/cma.j.cn112150-20220621-00639] [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: 06/17/2023]
Abstract
Between August and September, 2021, this study included 605 SARS-CoV-2 natural infection cases and 589 SARS-CoV-2 breakthrough cases from Nanjing and Yangzhou, as well as 690 inactivated COVID-19 vaccine recipients from Changzhou, China. In SARS-CoV-2 natural infection cases, the age range was 19-91 years (median age: 66 year), and the medians(Q1,Q3) of IgG titers were 0.19 (0.06-1.31), 3.70 (0.76-69.48), 15.31 (2.59-82.16), 4.41 (0.99-31.74), 2.31 (0.75-13.83), 2.28 (0.68-9.94) and 2.80 (1.00-9.53) at one to seven weeks after SARS-CoV-2 infection, respectively. In SARS-CoV-2 breakthrough cases, the age range was 18-76 years (median age: 45 year), and the medians(Q1,Q3)of IgG titers were 1.93 (0.34-26.67), 38.87 (7.90-121.0), 75.09 (11.85-123.70), 21.97 (5.20-95.58), 13.97 (3.47-46.82), 9.56 (2.48-33.38) and 4.38 (1.87-11.00) at one to seven weeks after SARS-CoV-2 infection, respectively. In inactivated COVID-19 vaccine recipients, the age range was 18-87 years (median age: 47 years), and the medians(Q1,Q3)of IgG titers were 16.22 (15.84-33.42), 5.35 (2.96-13.23), 3.30 (2.18-6.18), 3.14 (1.16-5.70), 2.77 (1.50-4.52), 2.72 (1.76-4.36), 2.01 (1.27-3.51) and 1.94 (1.35-3.09) at one to eight months after SARS-CoV-2 infection, respectively. The results suggested that IgG antibodies increased gradually within two weeks after SARS-CoV-2 infection, then declined gradually at three to seven weeks in SARS-CoV-2 natural infection cases. In SARS-CoV-2 breakthrough cases, IgG antibodies increased rapidly within two weeks, then declined gradually at three to seven weeks after SARS-CoV-2 infection. Additionally, IgG antibodies decreased rapidly within three months, then decreased gradually and remained at a low level within three months after immunization.
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Affiliation(s)
- L R Jin
- School of Public Health, Southeast University, Nanjing 210009, China
| | - C C Li
- Institute of Acute Infectious Disease Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - C Chen
- Institute of Acute Infectious Disease Control, Changzhou Municipal Center for Disease Control and Prevention, Changzhou 213000, China
| | - Y Wang
- Institute of Acute Infectious Disease Control, Yangzhou Municipal Center for Disease Control and Prevention, Yangzhou 225000, China
| | - Y Wang
- Laboratory Department, Yangzhou Municipal Center for Disease Control and Prevention, Yangzhou 225000, China
| | - M He
- Laboratory Department, Nanjing Municipal Center for Disease Control and Prevention, Nanjing 210003, China
| | - S N Ding
- Institute of Acute Infectious Disease Control, Nanjing Municipal Center for Disease Control and Prevention, Nanjing 210003, China
| | - M W Wei
- Institute of Acute Infectious Disease Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - H Tian
- Institute of Acute Infectious Disease Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - X X Kong
- Institute of Acute Infectious Disease Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - C Dong
- Institute of Acute Infectious Disease Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - L Zhou
- Institute of Acute Infectious Disease Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - J F Peng
- Institute of Acute Infectious Disease Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - Z G Wang
- Institute of Acute Infectious Disease Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - F C Zhu
- Institute of Acute Infectious Disease Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - L G Zhu
- School of Public Health, Southeast University, Nanjing 210009, China Institute of Acute Infectious Disease Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
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24
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Wu Y, Tian H, Wang W, Li W, Duan H, Zhang D. DNA methylation and waist-to-hip ratio: an epigenome-wide association study in Chinese monozygotic twins. J Endocrinol Invest 2022; 45:2365-2376. [PMID: 35882828 DOI: 10.1007/s40618-022-01878-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 07/19/2022] [Indexed: 11/27/2022]
Abstract
PURPOSE Epigenetic signatures such as DNA methylation may be associated with specific obesity traits. We performed an epigenome-wide association study (EWAS) by combining with the waist-to-hip ratio (WHR)-discordant monozygotic (MZ) twin design in an attempt to identify genetically independent DNA methylation marks associated with abdominal obesity in Northern Han Chinese and to determine the causation underlying. METHODS A total of 60 WHR discordant MZ twin pairs were selected from the Qingdao Twin Registry, China. Generalized estimated equation (GEE) model was used to regress the methylation level of CpG sites on WHR. The Inference about Causation through Examination of FAmiliaL CONfounding (ICE FALCON) was used to assess the temporal relationship between methylation and WHR. Gene expression analysis was conducted to validate the results of differentially methylated analyses. RESULTS EWAS identified 92 CpG sites with the level of P < 10 - 4 which were annotated to 32 genes, especially CADPS2, TUSC5, ZCCHC14, CORO7, COL23A1, CACNA1C, CYP26B1, and BCAT1. ICE FALCON showed significant causality between DNA methylation of several genes and WHR (P < 0.05). In region-based analysis, 14 differentially methylated regions (DMRs) located at 15 genes (slk-corrected P < 0.05) were detected. The gene expression analysis identified the significant correlation between expression levels of 5 differentially methylated genes and WHR (P < 0.05). CONCLUSIONS Our study identifies the associations between specific epigenetic variations and WHR in Northern Han Chinese. These DNA methylation signatures may have value as diagnostic biomarkers and provide novel insights into the molecular mechanisms of pathogenesis.
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Affiliation(s)
- Y Wu
- Department of Epidemiology and Health Statistics, Public Health College, Qingdao University, NO. 308 Ningxia Road, 266071, Qingdao, Shandong, China.
| | - H Tian
- Department of Epidemiology and Health Statistics, Public Health College, Qingdao University, NO. 308 Ningxia Road, 266071, Qingdao, Shandong, China
| | - W Wang
- Department of Epidemiology and Health Statistics, Public Health College, Qingdao University, NO. 308 Ningxia Road, 266071, Qingdao, Shandong, China
| | - W Li
- Population Research Unit, Faculty of Social Sciences, University of Helsinki, Helsinki, Finland
| | - H Duan
- Qingdao Municipal Center for Disease Control and Prevention, Qingdao, Shandong, China
| | - D Zhang
- Department of Epidemiology and Health Statistics, Public Health College, Qingdao University, NO. 308 Ningxia Road, 266071, Qingdao, Shandong, China
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25
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Li JJ, Zeng M, Xu J, Ge YL, Tian H, Wang ZL, Liu GB, Zhai XW, Zhang XB, Zhu QR, Chang HL. [Diagnostic value of rapid antigen testing for the detection of SARS-CoV-2 infection]. Zhonghua Er Ke Za Zhi 2022; 60:1153-1157. [PMID: 36319149 DOI: 10.3760/cma.j.cn112140-20220628-00598] [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
Objective: To investigate the diagnostic value of rapid antigen test based on colloidal gold immunochromatographic assay for the detection of SARS-CoV-2 infection in symptomatic patients. Methods: From May 20 to June 5 2022, 76 hospitalized children and their 55 accompanying family members with confirmed SARS-CoV-2 infection in the COVID-19 isolation unit of the Children's Hospital of Fudan University (designated referral hospital for SARS-CoV-2 infection in Shanghai) enrolled. Their nasopharyngeal swab specimens were consecutively collected. The samples were tested for SARS-CoV-2 nucleic acid by real-time quantitative. SARS-CoV-2 antigen was tested by immunochromatography. The correlation between the antigen detection results and the change of the cycle threshold (Ct) values were evaluated, as well as the sensitivity and specificity of SARS-CoV-2 antigen detection at different periods after the onset of the disease. Kappa consistency test was conducted to investigate the consistency between the 2 diagnostic methods. Results: Of the enrolled SARS-CoV-2 symptomatic infections, 76 were children, including 41 males and 35 females, with an age of 5 (2, 9) years; 55 were accompanying families, including 8 males and 47 females, with an age of 38 (32, 41) years. All 478 samples were simultaneously tested for SARS-CoV-2 antigen and nucleic acid. In any period from disease onset to negative conversion of viral nucleic acid, the overall sensitivity of the rapid antigen test was 48.2% (119/247), the specificity was 98.3% (227/231), and antigen test and nucleic acid test showed moderate consistency (κ=0.46, P<0.05). The sensitivity of antigen test was 100% (82/82) when the Ct value was ≤25. And the sensitivity of antigen test was 8/10, 4/15 and 8.3% (3/36) when the Ct value was 26, 30 and 35, respectively. All antigen tests were negative when Ct value was >35. During the period of 1-2 days, 3-5 days, 6-7 days, 8-10 days and >10 days after onset, the sensitivity and specificity of SARS-CoV-2 antigen test were 5/8 and 5/5, 90.2% (37/41) and 5/5, 88.9% (24/27) and 2/5, 45.0% (36/80) and 94.1% (32/34), 18.7% (17/91) and 98.9% (183/185) respectively. The Ct values of nasopharyngeal swabs were<26 during 2 to 7 days after onset, 28.7±5.0 on day 8, 34.5±2.9 on day 13 and > 35 after 14 days, respectively. Conclusion: SARS-CoV-2 antigen test in the patients with SARS-CoV-2 infection shows acceptable sensitivity and specificity within 7 days after onset of disease, and the sensitivity was positively correlated with viral load and negatively correlated with onset time.
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Affiliation(s)
- J J Li
- Department of Infectious Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - M Zeng
- Department of Infectious Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - J Xu
- Department of Clinical Laboratory, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Y L Ge
- Department of Infectious Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - H Tian
- Department of Infectious Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Z L Wang
- Department of Infectious Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - G B Liu
- Department of Medical Affairs, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - X W Zhai
- Department of Hematology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - X B Zhang
- Department of Respiratory Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Q R Zhu
- Department of Infectious Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - H L Chang
- Department of Infectious Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
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26
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Tian H, Ma YX, Xia J, Zhang RX. [Hybird Rosai-Dorfman disease involving bilateral nasal cavity and cervical lymph nodes: one case report]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:1243-1245. [PMID: 36319132 DOI: 10.3760/cma.j.cn115330-20211103-00710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Affiliation(s)
- H Tian
- Department of Otorhinolaryngology, Beijing Friendship Hospital Affiliated to Capital Medical University, Beijing 100050, China
| | - Y X Ma
- Department of Otorhinolaryngology, Beijing Friendship Hospital Affiliated to Capital Medical University, Beijing 100050, China
| | - J Xia
- Department of Otorhinolaryngology, Beijing Friendship Hospital Affiliated to Capital Medical University, Beijing 100050, China
| | - R X Zhang
- Department of Otorhinolaryngology, Beijing Friendship Hospital Affiliated to Capital Medical University, Beijing 100050, China
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27
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Lalaoui N, Abdellah M, Materna KL, Xu B, Tian H, Thapper A, Sa J, Hammarström L, Ott S. Gold nanoparticle-based supramolecular approach for dye-sensitized H 2-evolving photocathodes. Dalton Trans 2022; 51:15716-15724. [PMID: 36177940 DOI: 10.1039/d2dt02798d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Solar conversion of water into the storable energy carrier H2 can be achieved through photoelectrochemical water splitting using light adsorbing anodes and cathodes bearing O2 and H2 evolving catalysts, respectively. Herein a novel photocathode nanohybrid system is reported. This photocathode consists of a dye-sensitized p-type nickel oxide (NiO) with a perylene-based chromophore (PCA) and a tetra-adamantane modified cobaloxime reduction catalyst (Co) that photo-reduces aqueous protons to H2. An original supramolecular approach was employed, using β-cyclodextrin functionalized gold nanoparticles (β-CD-AuNPs) to link the alkane chain of the PCA dye to the adamantane moieties of the cobaloxime catalyst (Co). This new architecture was investigated by photoelectrochemical measurements and via femtosecond-transient absorption spectroscopy. The results show that irradiation of the complete NiO|PCA|β-CD-AuNPs|Co electrode leads to ultrafast hole injection into NiO (π = 3 ps) from the excited dye, followed by rapid reduction of the catalyst, and finally H2 evolution.
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Affiliation(s)
- Noémie Lalaoui
- Department of Chemistry-Ångström Laboratories, Uppsala University, Box 523, SE75120 Uppsala, Sweden. .,Univ. Grenoble Alpes, UMR CNRS 5250, Département de Chimie Moléculaire, 38000 Grenoble, France
| | - Mohamed Abdellah
- Department of Chemistry-Ångström Laboratories, Uppsala University, Box 523, SE75120 Uppsala, Sweden. .,Department of Chemistry, Qena Faculty of Science, South Valley University, 83523 Qena, Egypt
| | - Kelly L Materna
- Department of Chemistry-Ångström Laboratories, Uppsala University, Box 523, SE75120 Uppsala, Sweden.
| | - Bo Xu
- Department of Chemistry-Ångström Laboratories, Uppsala University, Box 523, SE75120 Uppsala, Sweden.
| | - Haining Tian
- Department of Chemistry-Ångström Laboratories, Uppsala University, Box 523, SE75120 Uppsala, Sweden.
| | - Anders Thapper
- Department of Chemistry-Ångström Laboratories, Uppsala University, Box 523, SE75120 Uppsala, Sweden.
| | - Jacinto Sa
- Department of Chemistry-Ångström Laboratories, Uppsala University, Box 523, SE75120 Uppsala, Sweden. .,Institute of Physical Chemistry, Polish Academy of Sciences, 01-224 Warsaw, Poland
| | - Leif Hammarström
- Department of Chemistry-Ångström Laboratories, Uppsala University, Box 523, SE75120 Uppsala, Sweden.
| | - Sascha Ott
- Department of Chemistry-Ångström Laboratories, Uppsala University, Box 523, SE75120 Uppsala, Sweden.
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28
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Liu WS, Shen LJ, Tian H, Zhai QH, Li DZ, Song FJ, Xin SJ, You SL. [ABC prognostic classification and MELD 3.0 and COSSH-ACLF Ⅱ prognostic evaluation in acute-on-chronic liver failure]. Zhonghua Gan Zang Bing Za Zhi 2022; 30:976-980. [PMID: 36299192 DOI: 10.3760/cma.j.cn501113-20220308-00103] [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] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To investigate the ABC prognostic classification and the updated version of Model for End-stage Liver Disease (MELD) score 3.0 and Chinese Group on the Study of Severe Hepatitis B ACLF Ⅱ score (COSSH-ACLF Ⅱ score) to evaluate the prognostic value in acute-on-chronic liver failure (ACLF). Methods: ABC classification was performed on a 1 409 follow-up cohorts. The area under the receiver operating characteristic curve (AUROC) was used to analyze MELD, MELD 3.0, COSSH-Ⅱ and COSSH-Ⅱ score after 3 days of hospitalization (COSSH-Ⅱ-3d). The prognostic predictive ability of patients were evaluated for 360 days, and the prediction differences of different classifications and different etiologies on the prognosis of ACLF were compared. Results: The survival curve of 1 409 cases with ACLF showed that the difference between class A, B, and C was statistically significant, Log Rank (Mantel-Cox) χ2=80.133, P<0.01. Compared with class A and C, χ2=76.198, P<0.01, the difference between class B and C, was not statistically significant χ2=3.717, P>0.05. AUROC [95% confidence interval (CI)] analyzed MELD, MELD 3.0, COSSH-Ⅱ and COSSH-Ⅱ-3d were 0.644, 0.655, 0.817 and 0.839, respectively (P<0.01). COSSH-Ⅱ had better prognostic predictive ability with class A ACLF and HBV-related ACLF (HBV-ACLF) for 360-days, and AUROC (95% CI) were 0.877 and 0.881, respectively (P<0.01), while MELD 3.0 prognostic predictive value was not better than MELD. Conclusion: ACLF prognosis is closely related to ABC classification. COSSH-Ⅱ score has a high predictive value for the prognostic evaluation of class A ACLF and HBV-ACLF. COSSH-Ⅱ score has a better prognostic evaluation value after 3 days of hospitalization, suggesting that attention should be paid to the treatment of ACLF in the early stage of admission.
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Affiliation(s)
- W S Liu
- Liver Disease Department, Fifth Medical Center of Chinese PLA General Hospital, Beijing 100039, China
| | - L J Shen
- Liver Disease Department, Fifth Medical Center of Chinese PLA General Hospital, Beijing 100039, China
| | - H Tian
- Liver Disease Department, Fifth Medical Center of Chinese PLA General Hospital, Beijing 100039, China
| | - Q H Zhai
- Liver Disease Department, Fifth Medical Center of Chinese PLA General Hospital, Beijing 100039, China
| | - D Z Li
- Liver Disease Department, Fifth Medical Center of Chinese PLA General Hospital, Beijing 100039, China
| | - F J Song
- Liver Disease Department, Fifth Medical Center of Chinese PLA General Hospital, Beijing 100039, China
| | - S J Xin
- Liver Disease Department, Fifth Medical Center of Chinese PLA General Hospital, Beijing 100039, China
| | - S L You
- Liver Disease Department, Fifth Medical Center of Chinese PLA General Hospital, Beijing 100039, China
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29
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Zhou G, Zhao MW, Cao YP, Lin JH, Wang WG, Guo A, Tian H. [A multicenter cross-sectional study of quality of life and nonsurgical treatment in patients with knee osteoarthritis]. Zhonghua Yi Xue Za Zhi 2022; 102:2799-2805. [PMID: 36124353 DOI: 10.3760/cma.j.cn112137-20220406-00719] [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: 06/15/2023]
Abstract
Objective: To explore the influencing factors of health-related quality of life (HRQoL) in patients with knee osteoarthritis, and to analyze the non-surgical treatment of knee osteoarthritis. Methods: Demographic variables, treatment modalities, imaging data, and 12-item short form health survey (SF-12) scores of patients with knee osteoarthritis in orthopedic outpatient departments of five hospitals in Beijing from December 2017 to November 2018 were collected to analyze influencing factors of HRQoL and non-surgical treatment. Results: A total of 2 034 patients were included. There were 530 males (26.1%) and 1 504 females (73.9%), with a mean age of (59.17±10.22) years. In terms of physical quality of life, female patients with knee osteoarthritis had lower physical components summary (PCS) compared with male patients (β=-0.521, P=0.036); patients aged ≥64 years had lower PCS than those aged<55 years (β=-0.636, P=0.026). Patients with an education of more than 12 years had higher PCS than those with less than 10 years (β=1.063, P<0.001). Compared to patients with mild clinical symptoms, the PCS of patients with moderate clinical symptoms was lower (β=-0.860, P=0.002), while the PCS of those with severe clinical symptoms was much lower (β=-1.126, P<0.001). Patients treated with combination therapy had higher PCS than untreated patients (β=0.731, P=0.005). In terms of mental quality of life, compared to patients engaged in sedentary work, the mental components summary (MCS) of patients engaged in mild manual labor jobs was lower (β=-0.712, P=0.015); Compared to patients with a Charson comorbidity index of 0, patients with a Charlson comorbidity index ≥ 2 had lower MCS (β=-1.183, P=0.007). In the past 12 months, 648 (31.9%), 143 (7.0%), 406 (20.0%), 680 (33.4%), 343 (16.9%), 681 (33.5%), 170 (8.4%) patients had used non-steroid anti-inflammatory drugs (NSAIDs), acetaminophen, glucosamine/chondroitin formulations, physical therapy, articular cavity puncture injection, traditional Chinese medicine treatment and exercise therapy, respectively. Total of 451 patients (22.2%) received monotherapy and 889 patients (43.7%) received combination therapy. Conclusions: The major non-surgical treatment methods for patients with knee osteoarthritis in Beijing are NSAIDs, physiotherapy and traditional Chinese medicine. Combination therapy is used more frequently than monotherapy. Physical quality of life is related to gender, age, education, severity of symptoms and treatment, while mental quality of life is related to occupational labor and comorbidities.
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Affiliation(s)
- G Zhou
- Department of orthopedics, Peking University Third Hospital, Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing 100191, China
| | - M W Zhao
- Department of orthopedics, Peking University Third Hospital, Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing 100191, China
| | - Y P Cao
- Department of Orthopedics, Peking University First Hospital, Beijing 100034, China
| | - J H Lin
- Department of Orthopedics, Peking University People's Hospital, Beijing 100044, China
| | - W G Wang
- Department of Orthopedics, China-Japan Friendship Hospital, Beijing 100029, China
| | - A Guo
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - H Tian
- Department of orthopedics, Peking University Third Hospital, Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing 100191, China
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30
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Liu D, Tian H, Zhai ZG. [Evidence-based research and prognosis of novel coagulation factor Ⅺ inhibitors in venous thromboembolism]. Zhonghua Jie He He Hu Xi Za Zhi 2022; 45:925-930. [PMID: 36097930 DOI: 10.3760/cma.j.cn112147-20220503-00372] [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: 06/15/2023]
Abstract
Thrombosis is the main cause of the development and progression of venous thromboembolism(VTE). Anticoagulant therapy is the cornerstone for the prophylaxis and treatment of VTE, and it has evolved mainly through indirect thrombin inhibitors, direct thrombin inhibitors, vitamin K antagonists and new oral anticoagulants. Although safety is improving, the risk of bleeding remains a non-negligible side effect of current anticoagulation therapy, especially in patients with higher bleeding risk. Studies of the coagulation pathway have found that FXI is not involved in the initiation of hemostasis, but promotes thrombus growth and stabilization primarily through feedback activation of FⅪ by thrombin. Further studies have found that inhibition of FⅪ significantly inhibits thrombus formation and only affects hemostasis slightly. Recent studies have confirmed the efficacy and safety of FⅪ inhibitors in the prevention of VTE in patients after knee replacement. In addition, the safety of FⅪ inhibitors has been further confirmed by the studies of FⅪ inhibitors in people with higher bleeding risk. FⅪ inhibitors may be the most promising anticoagulant drugs in the next decade.
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Affiliation(s)
- D Liu
- Peking University China-Japan Friendship School of Clinical Medicine, Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Center for Respiratory Medicine Institute of Respiratory Medicine, Chinese Academy of Medical Sciences; National Clinical Research Center for Respiratory Diseases, Beijing 100029, China
| | - H Tian
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Center for Respiratory Medicine Institute of Respiratory Medicine, Peking Union Medical College, Chinese Academy of Medical Sciences; National Clinical Research Center for Respiratory Diseases, Beijing 100029, China
| | - Z G Zhai
- Peking University China-Japan Friendship School of Clinical Medicine, Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Center for Respiratory Medicine Institute of Respiratory Medicine, Chinese Academy of Medical Sciences; National Clinical Research Center for Respiratory Diseases, Beijing 100029, China
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Dai L, Chen KN, Y. Wu, Ma J, Guo S, Tian H, Xiao G, Liu W, He M, Chen C, Shi X, Wang Z, Liu J, Guo W, Cui Y, Dai T, Fu X, Jiao W. 1243P Influence of home nutritional therapy on body weight in patients with esophageal cancer after surgery: A prospective observational study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1361] [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: 11/24/2022] Open
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32
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Cui CL, Li Z, Wu N, Li M, Chen X, Zheng H, Gao M, Wang D, Lian B, Wang X, Tian H, Si L, Chi Z, Sheng X, Lai Y, Sun T, Zhang Q, Kong Y, Guo J. 796P Neoadjuvant toripalimab plus axitinib in patients (pts) with resectable mucosal melanoma (MuM): Updated findings of a single-arm, phase II trial. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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33
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Tian H, Qi Y, Zhu X, Luo N, Li M, Sun T, Qi C. 104P NTRK3 mutation affects the efficacy of immune checkpoint inhibitors in patients with advanced cancer. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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34
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Zhu B, Tian H, Song FJ, Li DZ, Liu SH, Dong JH, Lyu S, You SL. [Abernethy malformation associated with COACH syndrome in a patient with TMEM67 mutation: a case report]. Zhonghua Nei Ke Za Zhi 2022; 61:1052-1055. [PMID: 36008300 DOI: 10.3760/cma.j.cn112138-20220107-00019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- B Zhu
- Department of Hepatology, the Fifth Medical Center,Chinese PLA General Hospital, Beijing 100039, China
| | - H Tian
- Department of Hepatology, the Fifth Medical Center,Chinese PLA General Hospital, Beijing 100039, China
| | - F J Song
- Department of Hepatology, the Fifth Medical Center,Chinese PLA General Hospital, Beijing 100039, China
| | - D Z Li
- Department of Hepatology, the Fifth Medical Center,Chinese PLA General Hospital, Beijing 100039, China
| | - S H Liu
- Department of Hepatology, the Fifth Medical Center,Chinese PLA General Hospital, Beijing 100039, China
| | - J H Dong
- Department of Hepatology, the Fifth Medical Center,Chinese PLA General Hospital, Beijing 100039, China
| | - S Lyu
- Department of Hepatology, the Fifth Medical Center,Chinese PLA General Hospital, Beijing 100039, China
| | - S L You
- Department of Hepatology, the Fifth Medical Center,Chinese PLA General Hospital, Beijing 100039, China
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35
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Huang CJ, Tian H, Lvy S, You SL, Liu SH, Zhu B. [A case of cholelithiasis that seems like secondary hemochromatosis as a result of congenital dyserythropoietic anemia]. Zhonghua Gan Zang Bing Za Zhi 2022; 30:895-898. [PMID: 36207948 DOI: 10.3760/cma.j.cn-501113-20211112-00547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Affiliation(s)
- C J Huang
- Senior Department of Hepatology, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China Department of Internal Medicine, Qujing First People's Hospital, Qujing 655000, China
| | - H Tian
- Senior Department of Hepatology, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - S Lvy
- Senior Department of Hepatology, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - S L You
- Senior Department of Hepatology, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - S H Liu
- Department of Pathology, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - B Zhu
- Senior Department of Hepatology, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China
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36
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Ma YX, Tian H. [The midline approach to the Draf Ⅲ frontal sinus surgery]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:910-914. [PMID: 36058655 DOI: 10.3760/cma.j.cn115330-20220107-00012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- Y X Ma
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - H Tian
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
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Gao J, Tot A, Tian H, Gardner JM, Phuyal D, Kloo L. Electrochemical impedance and X-ray absorption spectroscopy analyses of degradation in dye-sensitized solar cells containing cobalt tris(bipyridine) redox shuttles. Phys Chem Chem Phys 2022; 24:18888-18895. [PMID: 35913077 DOI: 10.1039/d2cp02283d] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Electrochemical impedance spectroscopy (EIS) is a commonly used steady-state technique to examine the internal resistance of electron-transfer processes in solar cell devices, and the results are directly related to the photovoltaic performance. In this study, EIS was performed to study the effects of accelerated ageing, aiming for insights into the degradation mechanisms of dye-sensitized solar cells (DSSCs) containing cobalt tris(bipyridine) complexes as redox mediators. Control experiments based on aged electrolytes differing in concentrations of the redox couple components and cation co-additives were conducted to reveal the correlation of the cell degradation with external and internal properties. The failure modes of the cells emerged as changes in the kinetics of charge- and ion-transfer processes. An insufficient concentration of the redox complexes, in particular Co(III), was found to be the main reason for the inferior performance after ageing. The related characterization of electrolytes aged outside the solar cell devices confirms the loss of active Co(III) complexes in the device electrolytes. A new EIS feature at low frequencies emerged during ageing and was analysed. The new EIS feature demonstrates the presence of an unexpected rate-limiting, charge-transfer process in aged devices, which can be attributed to the TiO2/electrolyte interface. High-resolution fluorescence detected X-ray absorption spectroscopy (HERFD-XAS) was performed to identify the reduction of a part of Co(III) to Co(II) after ageing, by investigating the Co K absorption edge. The HERFD-XAS data suggested a partial reduction of Co(III) to Co(II), accompanied by a difference in symmetry of the reduced species.
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Affiliation(s)
- Jiajia Gao
- Division of Applied Physical Chemistry, Department of Chemistry, KTH Royal Institute of Technology, SE-100 44, Stockholm, Sweden.
| | - Aleksandar Tot
- Division of Applied Physical Chemistry, Department of Chemistry, KTH Royal Institute of Technology, SE-100 44, Stockholm, Sweden.
| | - Haining Tian
- Department of Chemistry, Ångström Laboratory, Uppsala University, Box 523, SE-75120, Uppsala, Sweden
| | - James M Gardner
- Division of Applied Physical Chemistry, Department of Chemistry, KTH Royal Institute of Technology, SE-100 44, Stockholm, Sweden.
| | - Dibya Phuyal
- Department of Materials and Nanophysics, KTH Royal Institute of Technology, SE-100 44, Stockholm, Sweden
| | - Lars Kloo
- Division of Applied Physical Chemistry, Department of Chemistry, KTH Royal Institute of Technology, SE-100 44, Stockholm, Sweden.
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Liu HZ, Gao CY, Yuan F, Xu Y, Tian H, Wang SQ, Zhang PF, Shi YN, Wei JJ. [Sacubitril/valsartan attenuates left ventricular remodeling and improve cardiac function by upregulating apelin/APJ pathway in rats with heart failure]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:690-697. [PMID: 35856226 DOI: 10.3760/cma.j.cn112148-20211008-00862] [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: 06/15/2023]
Abstract
Objective: To investigate the effect and mechanism of sacubitril/valsartan on left ventricular remodeling and cardiac function in rats with heart failure. Methods: A total of 46 SPF-grade male Wistar rats weighed 300-350 g were acclimatized to the laboratory for 7 days. Rats were then divided into 4 groups: the heart failure group (n=12, intraperitoneal injection of adriamycin hydrochloride 2.5 mg/kg once a week for 6 consecutive weeks, establishing a model of heart failure); heart failure+sacubitril/valsartan group (treatment group, n=12, intragastric administration with sacubitril/valsartan 1 week before the first injection of adriamycin, at a dose of 60 mg·kg-1·d-1 for 7 weeks); heart failure+sacubitril/valsartan+APJ antagonist F13A group (F13A group, n=12, adriamycin and sacubitril/valsartan, intraperitoneal injection of 100 μg·kg-1·d-1 APJ antagonist F13A for 7 weeks) and control group (n=10, intraperitoneal injection of equal volume of normal saline). One week after the last injection of adriamycin or saline, transthoracic echocardiography was performed to detect the cardiac structure and function, and then the rats were executed, blood and left ventricular specimens were obtained for further analysis. Hematoxylin-eosin staining and Masson trichrome staining were performed to analyze the left ventricular pathological change and myocardial fibrosis. TUNEL staining was performed to detect cardiomyocyte apoptosis. mRNA expression of left ventricular myocardial apelin and APJ was detected by RT-qRCR. ELISA was performed to detect plasma apelin-12 concentration. The protein expression of left ventricular myocardial apelin and APJ was detected by Western blot. Results: Seven rats survived in the heart failure group, 10 in the treatment group, and 8 in the F13A group. Echocardiography showed that the left ventricular end-diastolic diameter (LVEDD) and the left ventricular end-systolic diameter (LVESD) were higher (both P<0.05), while the left ventricular ejection fraction (LVEF) and left ventricular fractional shortening (LVFS) were lower in the heart failure group than in the control group (both P<0.05). Compared with the heart failure group, rats in the treatment group were featured with lower LVEDD and LVESD (both P<0.05), higher LVEF and LVFS (both P<0.05), these beneficial effects were reversed in rats assigned to F13A group (all P<0.05 vs. treatment group). The results of HE staining showed that the cardiomyocytes of rats in the control group were arranged neatly and densely structured, the cardiomyocytes in the heart failure group were arranged in disorder, distorted and the gap between cells was increased, the cardiomyocytes in the treatment group were slightly neat and dense, and cardiomyocytes in the F13A group were featured similarly as the heart failure group. Masson staining showed that there were small amount of collagen fibers in the left ventricular myocardial interstitium of the control group, while left ventricular myocardial fibrosis was significantly increased, and collagen volume fraction (CVF) was significantly higher in the heart failure group than that of the control group (P<0.05). Compared with the heart failure group, the left ventricular myocardial fibrosis and the CVF were reduced in the treatment group (both P<0.05), these effects were reversed in the F13A group (all P<0.05 vs. treatment group). TUNEL staining showed that the apoptosis index (AI) of cardiomyocytes in rats was higher in the heart failure group compared with the control group (P<0.05), which was reduced in the treatment group (P<0.05 vs. heart failure group), this effect again was reversed in the F13A group (P<0.05 vs. treatment group). The results of RT-qPCR and Western blot showed that the mRNA and protein levels of apelin and APJ in left ventricular myocardial tissue of rats were downregulated in heart failure group (all P<0.05) compared with the control group. Compared with the heart failure group, the mRNA and protein levels of apelin and APJ were upregulated in the treatment group (all P<0.05), these effects were reversed in the F13A group (all P<0.05 vs. treatment group). ELISA test showed that the plasma apelin concentration of rats was lower in the heart failure group compared with the control group (P<0.05); compared with the heart failure group, the plasma apelin concentration of rats was higher in the treatment group (P<0.05), this effect was reversed in the F13A group (P<0.05 vs. treatment group). Conclusion: Sacubitril/valsartan can partially reverse left ventricular remodeling and improve cardiac function in rats with heart failure through modulating Apelin/APJ pathways.
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Affiliation(s)
- H Z Liu
- Department of Cardiology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Central China Fuwai Hospital, Zhengzhou 450000, China
| | - C Y Gao
- Department of Cardiology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Central China Fuwai Hospital, Zhengzhou 450000, China
| | - F Yuan
- Department of Cardiology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Central China Fuwai Hospital, Zhengzhou 450000, China
| | - Y Xu
- Department of Cardiology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Central China Fuwai Hospital, Zhengzhou 450000, China
| | - H Tian
- Department of Cardiology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Central China Fuwai Hospital, Zhengzhou 450000, China
| | - S Q Wang
- Department of Cardiology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Central China Fuwai Hospital, Zhengzhou 450000, China
| | - P F Zhang
- Department of Cardiology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Central China Fuwai Hospital, Zhengzhou 450000, China
| | - Y N Shi
- Department of Cardiology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Central China Fuwai Hospital, Zhengzhou 450000, China
| | - J J Wei
- Department of Cardiology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Central China Fuwai Hospital, Zhengzhou 450000, China
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Pavliuk MV, Lorenzi M, Morado DR, Gedda L, Wrede S, Mejias SH, Liu A, Senger M, Glover S, Edwards K, Berggren G, Tian H. Polymer Dots as Photoactive Membrane Vesicles for [FeFe]-Hydrogenase Self-Assembly and Solar-Driven Hydrogen Evolution. J Am Chem Soc 2022; 144:13600-13611. [PMID: 35863067 PMCID: PMC9354254 DOI: 10.1021/jacs.2c03882] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A semiartificial photosynthesis approach that utilizes enzymes for solar fuel production relies on efficient photosensitizers that should match the enzyme activity and enable long-term stability. Polymer dots (Pdots) are biocompatible photosensitizers that are stable at pH 7 and have a readily modifiable surface morphology. Therefore, Pdots can be considered potential photosensitizers to drive such enzyme-based systems for solar fuel formation. This work introduces and unveils in detail the interaction within the biohybrid assembly composed of binary Pdots and the HydA1 [FeFe]-hydrogenase from Chlamydomonas reinhardtii. The direct attachment of hydrogenase on the surface of toroid-shaped Pdots was confirmed by agarose gel electrophoresis, cryogenic transmission electron microscopy (Cryo-TEM), and cryogenic electron tomography (Cryo-ET). Ultrafast transient spectroscopic techniques were used to characterize photoinduced excitation and dissociation into charges within Pdots. The study reveals that implementation of a donor-acceptor architecture for heterojunction Pdots leads to efficient subpicosecond charge separation and thus enhances hydrogen evolution (88 460 μmolH2·gH2ase-1·h-1). Adsorption of [FeFe]-hydrogenase onto Pdots resulted in a stable biohybrid assembly, where hydrogen production persisted for days, reaching a TON of 37 500 ± 1290 in the presence of a redox mediator. This work represents an example of a homogeneous biohybrid system combining polymer nanoparticles and an enzyme. Detailed spectroscopic studies provide a mechanistic understanding of light harvesting, charge separation, and transport studied, which is essential for building semiartificial photosynthetic systems with efficiencies beyond natural and artificial systems.
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Affiliation(s)
- Mariia V Pavliuk
- Department of Chemistry─Ångström Laboratory, Physical Chemistry, Uppsala University, 751 20 Uppsala, Sweden
| | - Marco Lorenzi
- Department of Chemistry─Ångström Laboratory, Molecular Biomimetics, Uppsala University, 751 20 Uppsala, Sweden
| | - Dustin R Morado
- Department of Biochemistry and Biophysics, Science for Life Laboratory, Stockholm University, 171 65 Solna, Sweden
| | - Lars Gedda
- Department of Chemistry─Ångström Laboratory, Physical Chemistry, Uppsala University, 751 20 Uppsala, Sweden
| | - Sina Wrede
- Department of Chemistry─Ångström Laboratory, Physical Chemistry, Uppsala University, 751 20 Uppsala, Sweden
| | - Sara H Mejias
- Department of Chemistry─Ångström Laboratory, Physical Chemistry, Uppsala University, 751 20 Uppsala, Sweden
| | - Aijie Liu
- Department of Chemistry─Ångström Laboratory, Physical Chemistry, Uppsala University, 751 20 Uppsala, Sweden
| | - Moritz Senger
- Department of Chemistry─Ångström Laboratory, Physical Chemistry, Uppsala University, 751 20 Uppsala, Sweden
| | - Starla Glover
- Department of Chemistry─Ångström Laboratory, Physical Chemistry, Uppsala University, 751 20 Uppsala, Sweden
| | - Katarina Edwards
- Department of Chemistry─Ångström Laboratory, Physical Chemistry, Uppsala University, 751 20 Uppsala, Sweden
| | - Gustav Berggren
- Department of Chemistry─Ångström Laboratory, Molecular Biomimetics, Uppsala University, 751 20 Uppsala, Sweden
| | - Haining Tian
- Department of Chemistry─Ångström Laboratory, Physical Chemistry, Uppsala University, 751 20 Uppsala, Sweden
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40
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Lian B, Si L, Chi ZH, Sheng XN, Kong Y, Wang X, Tian H, Li K, Mao LL, Bai X, Tang BX, Yan XQ, Li SM, Zhou L, Dai J, Tang XW, Ran FW, Yao S, Guo J, Cui CL. Toripalimab (anti-PD-1) versus High-Dose Interferon-α2b as Adjuvant Therapy in Resected Mucosal Melanoma: A Phase II Randomized Trial. Ann Oncol 2022; 33:1061-1070. [PMID: 35842199 DOI: 10.1016/j.annonc.2022.07.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [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: 02/21/2022] [Revised: 06/25/2022] [Accepted: 07/06/2022] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND No standard of care for mucosal melanoma (MM) in the adjuvant setting has been established. Meanwhile, relapse-free survival (RFS) is only about five months after surgery alone. This phase II trial aimed to compare toripalimab vs. high-dose interferon-α2b (HDI) as an adjuvant therapy for resected MM. PATIENTS AND METHODS From July 2017 to May 2019, 145 patients with resected MM were randomized (1:1) to receive HDI (N = 72) or toripalimab (N = 73) for one year until disease relapse/distant metastasis, unacceptable toxicity, or withdrawal of consent. The primary endpoint was RFS. The secondary endpoints included distant metastasis-free survival (DMFS), overall survival (OS), and safety. RESULTS After a median follow-up of 26.3 months, the numbers of RFS, OS, and DMFS events were 51 vs. 46, 33 vs. 29, and 49 vs. 44 in the toripalimab arm and the HDI arm, respectively. The median RFS were 13.6 (95%CI: 8.31-19.02) months and 13.9 (95%CI: 8.28-19.61) months in the toripalimab arm and HDI arm, respectively. The DMFS was not significantly different between the two arms (HR: 1.00, 95%CI: 0.65-1.54). The median OS was 35.1 months (95%CI: 27.93-NR) in the toripalimab arm, with no significant difference in all-cause death (HR: 1.11, 95% CI: 0.66-1.84) for the two arms. The median sums of the patients' actual infusion doses were 3672 mg and 1054.5 MIU in the toripalimab arm and HDI arm, respectively. The incidence of treatment-emergent adverse events with a grade ≥ 3 was much higher in the HDI arm than in the toripalimab arm (87.5% vs. 27.4%). CONCLUSION Toripalimab showed a similar RFS and a more favorable safety profile than HDI, both better than historical data, suggesting that toripalimab might be the better treatment option. However, additional translational studies and better treatment regimens are still warranted to improve the clinical outcome of MM.
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Affiliation(s)
- B Lian
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China
| | - L Si
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China
| | - Z H Chi
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China
| | - X N Sheng
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China
| | - Y Kong
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China
| | - X Wang
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China
| | - H Tian
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China
| | - K Li
- Department of Cancer Biotherapy Center, Yunnan Cancer Hospital, Kunming, The Third Affiliated Hospital of Kunming Medical University, Kunming, China
| | - L L Mao
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China
| | - X Bai
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China
| | - B X Tang
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China
| | - X Q Yan
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China
| | - S M Li
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China
| | - L Zhou
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China
| | - J Dai
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China
| | - X W Tang
- Shanghai Junshi Biosciences, Shanghai, China
| | - F W Ran
- Shanghai Junshi Biosciences, Shanghai, China
| | - S Yao
- Shanghai Junshi Biosciences, Shanghai, China
| | - J Guo
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China
| | - C L Cui
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China.
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Han B, Meng Y, Tian H, Li C, Li Y, Gongbao C, Fan W, Ma R. Effects of Acute Hypoxic Stress on Physiological and Hepatic Metabolic Responses of Triploid Rainbow Trout (Oncorhynchus mykiss). Front Physiol 2022; 13:921709. [PMID: 35812328 PMCID: PMC9263268 DOI: 10.3389/fphys.2022.921709] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 06/08/2022] [Indexed: 11/26/2022] Open
Abstract
This experiment simulated the hypoxic environment caused by actual production operations in fish farming (i.e., catching, gathering, transferring, and weighting) to study the effects of acute hypoxic conditions on the physiological and metabolic responses of triploid rainbow trout (O. mykiss). Two groups of fish weighting 590 g were sampled in the normoxia group (dissolved oxygen above 7 mg/L) and hypoxia group (dissolved oxygen ranged from 2 to 5 mg/L for 10 min). The results showed that 1) regarding stress response, hypoxia increased plasma levels of cortisol, heat shock protein 70 (HSP-70), lysozyme, alanine aminotransferase (ALT), aspartate aminotransferase (AST) and creatine phosphokinase (CPK); induced the expression of hepatic genes encoding nuclear factor erythroid 2 related factor 2 (Nrf2), interferon γ (IFN-γ) and interleukin-1β (IL-1β). 2) Regarding metabolism response, hypoxia increased plasma levels of globulin (GLOB), glucose (GLU), triglyceride (TG) and lactate dehydrogenase (LDH); upregulated the hepatic gene expression of phosphoenolpyruvate carboxykinase, (PEPCK), pyruvate dehydrogenase kinase (PDK1), acetyl-CoA carboxylase (ACC) and acetyl-CoA oxidase (ACO); downregulated the hepatic gene expression of carnitine palmitoyl transferase 1 (CPT1); and unchanged the expression of hepatic genes in glycolysis and autophagy. 3) In response to hypoxia-inducible factors (HIFs), the hepatic HIF-2α gene was activated in the hypoxia group, but HIF-1α gene expression remained unchanged. Thus, during acute hypoxic stress, triploid rainbow trout were in a defensive state, with an enhanced immune response and altered antioxidant status. Additionally, the hepatic mitochondrial oxidation of glucose- and lipid-derived carbon in trout was suppressed, and hepatic gluconeogenesis and lipid synthesis were activated, which might be regulated by the HIF-2α pathway.
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Affiliation(s)
- Buying Han
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, China
- College of Eco-Environmental Engineering, Qinghai University, Xining, China
| | - Yuqiong Meng
- College of Eco-Environmental Engineering, Qinghai University, Xining, China
| | - Haining Tian
- College of Eco-Environmental Engineering, Qinghai University, Xining, China
| | - Changzhong Li
- College of Eco-Environmental Engineering, Qinghai University, Xining, China
| | - Yaopeng Li
- Qinghai Minze Longyangxia Ecological Aquaculture Co., Ltd., Longyangxia, China
| | - Caidan Gongbao
- Qinghai Minze Longyangxia Ecological Aquaculture Co., Ltd., Longyangxia, China
| | - Wenyan Fan
- Qinghai Minze Longyangxia Ecological Aquaculture Co., Ltd., Longyangxia, China
| | - Rui Ma
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, China
- *Correspondence: Rui Ma,
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Wang S, Cai B, Tian H. Efficient Generation of Hydrogen Peroxide and Formate by an Organic Polymer Dots Photocatalyst in Alkaline Conditions. Angew Chem Int Ed Engl 2022; 61:e202202733. [PMID: 35299290 PMCID: PMC9324198 DOI: 10.1002/anie.202202733] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Indexed: 02/02/2023]
Abstract
A photocatalyst comprising binary organic polymer dots (Pdots) was prepared. The Pdots were constructed from poly(9,9-dioctylfluorene-alt-benzothiadiazole), as an electron donor, and 1-[3-(methoxycarbonyl)propyl]-1-phenyl-[6.6]C61 , as an electron acceptor. The photocatalyst produces H2 O2 in alkaline conditions (1 M KOH) with a production rate of up to 188 mmol h-1 g-1 . The external quantum efficiencies were 30 % (5 min) and 14 % (75 min) at 450 nm. Furthermore, photo-oxidation of methanol by Pdots, followed by a disproportionation reaction and an oxidation reaction, produced the high-value chemical formate. On the basis of various spectroscopic and electrochemical measurements, the photophysical processes of the system were studied in detail and a reaction mechanism was proposed.
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Affiliation(s)
- Sicong Wang
- Department of Chemistry-Ångström Laboratory, Uppsala University, 751 20, Uppsala, Sweden
| | - Bin Cai
- Department of Chemistry-Ångström Laboratory, Uppsala University, 751 20, Uppsala, Sweden
| | - Haining Tian
- Department of Chemistry-Ångström Laboratory, Uppsala University, 751 20, Uppsala, Sweden
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Ma WJ, Wang XS, Tian H, Zhu YF, Wei ZQ, Xu J, Zhu QR, Zeng M. [Characteristics of SARS-CoV-2 Omicron infection in children imported from Hong Kong]. Zhonghua Er Ke Za Zhi 2022; 60:539-544. [PMID: 35658359 DOI: 10.3760/cma.j.cn112140-20220423-00367] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To understand the clinical characteristics of children with SARS-CoV-2 Omicron infection imported from Hong Kong Special Administrative Region. Methods: This retrospective study was conducted to collect the data including clinical manifestations, outcomes and vaccination of 107 children with SARS-CoV-2 Omicron infection imported from Hong Kong Special Administrative Region to be admitted to the designated referral hospital in Shanghai from February to March 2022. According to the occurrence of clinical symptoms, the cases were divided into asymptomatic group and symptomatic group. According to the age of diagnosis, the cases were divided into <3 years group, 3-<6 years group and 6-<18 years group, and the clinical manifestations in different age group were analyzed with t-test and Mann-Whitney rank-sum test. Besides, to analyze the effectiveness of vaccination against SARS-CoV-2 Omicron infection in different age group, the cases aged 3-<18 years were also subdivided into unvaccinated group, 1-dose group and 2-dose group, and the relative risk (RR) was used to demonstrate the effectiveness. Results: Among the 107 cases, 66 were male and 41 were female, with infection age of 10 (5, 14) years. There were 29 cases in the asymptomatic group, and 78 cases in the symptomatic group, and no significant difference in the age of infection was observed between the 2 groups (11 (6, 14) vs. 10 (5, 14) years, Z=0.49, P>0.05). And there were no severe cases in symptomatic group. The length of hospitalization was (18±6) days, and was longer in symptomatic group than that in asymptomatic group ((19±6) vs. (16±7) d, t=0.17, P=0.030). Eight-two cases (76.6%) had a history of epidemiological exposure and, among whom, 81 cases (75.7%) were associated with household transmission. Among symptomatic group, 57 cases (73.1%) had fever and 20 cases (25.6%) had cough. Of the 74 cases undergoing chest CT examination, 17 cases (23.0%) showed mild abnormalities. Of the 83 cases who received the lab tests, 23 cases (27.7%) had white blood cell counts<4×109/L, 3 cases (3.6%) had C-reaction protein >8.0 mg/L, and 6 cases (7.2%) had slightly elevated aspartate transaminase and alanine aminotransferase. Among the 92 children aged 3-<18 years, 31 cases were unvaccinated, 34 cases received 1 dose, and 27 cases received 2 doses. The interval between the last vaccination and infection was 2.2 (0.6, 6.0) months; the interval between the last vaccination and infection in the 2-dose group was longer than that in 1-dose group (6.0 (4.5, 7.3) vs. 0.7 (0.3,2.0) months, Z=3.59, P<0.001).The risk of symptomatic infection was reduced by 45% (RR=0.55, 95% CI 0.35-0.87) with two-dose vaccination compared to non-vaccination in cases aged 3-<18 years. All these cases recovered completely. Conclusions: Children infected with SARS-CoV-2 Omicron are usually mild or asymptomatic. Household transmission is the main pattern of infection with SARS-CoV-2 Omicron in children. Two-dose SARS-CoV-2 vaccination in children aged 3-<18 years can provide partial protection against disease caused by SARS-CoV-2 Omicron.
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Affiliation(s)
- W J Ma
- Department of Infectious Disease, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - X S Wang
- Department of Infectious Disease, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - H Tian
- Department of Infectious Disease, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Y F Zhu
- Department of Infectious Disease, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Z Q Wei
- Department of Infectious Disease, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - J Xu
- Department of Infectious Disease, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Q R Zhu
- Department of Infectious Disease, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - M Zeng
- Department of Infectious Disease, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
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Ali N, Tian H, Thabane L, Ma J, Wu H, Zhong Q, Gao Y, Sun C, Zhu Y, Wang T. The Effects of Dual-Task Training on Cognitive and Physical Functions in Older Adults with Cognitive Impairment; A Systematic Review and Meta-Analysis. J Prev Alzheimers Dis 2022; 9:359-370. [PMID: 35543010 DOI: 10.14283/jpad.2022.16] [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] [Indexed: 11/11/2022]
Abstract
BACKGROUND AND OBJECTIVE Individuals with Alzheimer disease and dementia experience cognitive decline and reduction in physical capabilities. Engaging in cognitive challenges and physical exercises is effective in reducing age-related cognitive and physical decline. It is believed that physical activity in the context of cognitive challenges might enhance the process of neurogenesis in the adult brain, but how effective are such interventions? Is there enough evidence to support that dual-task training is more effective than cognitive or physical training alone? To what extent can such training improve cognitive and physical functions in patients at various stages of cognitive decline? METHODOLOGY This systematic review with meta-analysis summarizes the emerging evidence of dual-task training for enhancing cognitive and physical functions in older individuals with cognitive impairment, dementia or Alzheimer's disease. A systematic search was carried out in MEDLINE, PubMed, EMBASE, and Cochrane Library with the following search terms: randomized control trials, dual-task training, SCD, MCI, dementia, and Alzheimer's disease. RESULTS A total of 21 studies with 2,221 participants were identified. The results of dual-task tanning intervention are summarized as change in global cognitive function; SMD = 0.24, (P= 0.002), memory; SMD = 0.28, (P = 0.000), executive function; SMD = 0.35, (P = 0.000), attention; SMD = -0.19, (P = 0.1), gait speed; SMD = 0.26, (P = 0.007), dual-task cost; SMD 0.56, (P = 0.000), and balance; SMD 0.36, (P = 0.004). CONCLUSION Primary analysis showed a small-to-medium positive effect of dual-task training interventions on cognitive functions and medium-to-large positive effect on gait functions and balance.
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Affiliation(s)
- N Ali
- Tong Wang, Department of Rehabilitation Medicine, The First Affiliated Hospital of Nanjing Medical University, No. 300 of Guangzhou Road, Nanjing, Jiangsu 210029, China. Tel: +86 13951680478, fax: +862583318752. E-mail: ; Yi Zhu, Department of Rehabilitation Medicine, The First Affiliated Hospital of Nanjing Medical University, No. 300 of Guangzhou Road, Nanjing, Jiangsu 210029, China. Tel: +86 13705164030, fax: +862583318752. E-mail:
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Wang S, Cai B, Tian H. Efficient Generation of Hydrogen Peroxide and Formate by an Organic Polymer Dots Photocatalyst in Alkaline Conditions. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202202733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sicong Wang
- Uppsala Universitet Department of Chemistry - Ångström laboratory SWEDEN
| | - Bin Cai
- Uppsala Universitet Department of Chemistry - Ångström laboratory SWEDEN
| | - Haining Tian
- Uppsala University: Uppsala Universitet Department of Chemistry-Ångström Lab BOX 523 75120 Uppsala SWEDEN
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Zuo L, Tian H, Yu JJ, Zhou X, Huang WL. [Application of trifoliate flap design of radial forearm flap in reconstruction of defects after mouth floor cancer resection]. Zhonghua Zhong Liu Za Zhi 2022; 44:192-196. [PMID: 35184465 DOI: 10.3760/cma.j.cn112152-20200617-00573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To evaluate the effect of trifoliate flap design of radial forearm flap in reconstruction of defects after mouth floor cancer resection. Methods: From June 2016 to December 2019, 12 patients with defect after resection of mouth floor cancer were treated with trifoliate flap design of radial forearm flap. All of these patients were T2 stage, included 9 well-differentiated squamous cell carcinoma (SCC) and 3 moderate differentiated SCC. The defect size ranged from 8.0 cm×6.0 cm to 5.0 cm×4.5 cm after resection of tumor and neck dissection. All defects were repaired with trifoliate flap design of radial forearm flap. The flap size ranged from 8.0 cm×2.0 cm to 4.0 cm×1.5 cm, the donor site was sutured directly on Z plasty. Results: All flaps completely survived well. Both the wound and the donor site were stage Ⅰ healing. With the average follow-up of 38.6 months, the swallowing and speech function were satisfactory. Conclusions: Trifoliate flap design of radial forearm flap can effectively repair the postoperative defect of mouth floor cancer, and the donor site can be directly sutured on Z plasty. This technique can avoid forearm scar caused by skin grafting and the formation of the second donor site.
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Affiliation(s)
- L Zuo
- The 2nd Department of Head and Neck Surgery, Department of Oncoplastic Surgery, Hunan Cancer Hospital & the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, China
| | - H Tian
- The 2nd Department of Head and Neck Surgery, Department of Oncoplastic Surgery, Hunan Cancer Hospital & the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, China
| | - J J Yu
- The 2nd Department of Head and Neck Surgery, Department of Oncoplastic Surgery, Hunan Cancer Hospital & the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, China
| | - X Zhou
- The 2nd Department of Head and Neck Surgery, Department of Oncoplastic Surgery, Hunan Cancer Hospital & the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, China
| | - W L Huang
- The 2nd Department of Head and Neck Surgery, Department of Oncoplastic Surgery, Hunan Cancer Hospital & the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, China
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Wang P, Zhang LW, Lu CQ, Wang TZ, Shan M, Xiao JY, Tian H, Ma X, Xu Y, Wu DP. [Efficacy and safety of venetoclax combined with azacitidine versus CAG regimen combined with decitabine in elderly patients with relapsed acute myeloid leukemia]. Zhonghua Nei Ke Za Zhi 2022; 61:157-163. [PMID: 35090250 DOI: 10.3760/cma.j.cn112138-20210406-00261] [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] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To compare the efficacy and safety of venetoclax (VEN) combined with azacitidine (AZA) versus CAG regimen combined with decitabine (DAC) in elderly patients with relapsed acute myeloid leukemia (AML). Methods: From January 2018 to August 2020, the clinical data of forty-five elderly patients with relapse AML at the First Affiliated Hospital of Soochow University were retrospectively analyzed, including 31 males and 14 females. The median age was 66 (60-80) years old. Eighteen patients were administrated with VEN and AZA, while the other 27 were in CAG with DAC. The complete remission (CR) rate, partial remission (PR) rate, total remission rate (ORR), adverse events and overall survival (OS) were compared between the two groups. Results: At the end of the treatment, the ORR in VEN with AZA group was 77.8% (14/18); including 11 CR and 3 PR. In CAG with DAC group, the ORR was 37.0% (10/27); including 8 CR and 2 PR (P=0.007). Subgroup analysis suggested that VEN with AZA had a higher ORR in patients stratified as intermediate and poor-risk (P=0.013) or with DNA methylation mutations (P=0.007). Main adverse events in both groups were bone marrow suppression, infections, nausea and vomiting, anorexia and fatigue. Grade Ⅲ-Ⅳ cytopenia developed in lower incidence of VEN with AZA group, such as leukopenia (66.7% vs. 100%, P=0.002), anemia (50.0% vs. 92.6%, P=0.002), thrombocytopenia (72.2% vs. 96.3%, P=0.031) and neutropenia (61.1% vs. 92.6%, P=0.014). In addition, less grade Ⅲ-Ⅳ infections occurred in VEN with AZA group (66.7% vs. 33.3%, P=0.028), as well as grade Ⅲ-Ⅳ gastrointestinal events (40.7% vs. 11.1%, P=0.032), grade Ⅲ-Ⅳ fatigue (55.6% vs.11.1%, P=0.003) compared with CAG with DAC group. The 1-year OS in VEN with AZA group versus CAG with DAC group was 42.9% and 31.6% respectively (P=0.150). Conclusion: VEN combined with AZA proves favorable efficacy and tolerablity in elderly patients with relapsed AML.
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Affiliation(s)
- P Wang
- Department of Hematology, the First Affiliated Hospital of Soochow University, National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, Key Laboratory of Thrombosis and Hemostasis Under Ministry of Health Institute of Blood and Marrow Transplantation, Soochow University, Suzhou 215006, China
| | - L W Zhang
- Department of Hematology, the First Affiliated Hospital of Soochow University, National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, Key Laboratory of Thrombosis and Hemostasis Under Ministry of Health Institute of Blood and Marrow Transplantation, Soochow University, Suzhou 215006, China
| | - C Q Lu
- Department of Hematology, the First Affiliated Hospital of Soochow University, National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, Key Laboratory of Thrombosis and Hemostasis Under Ministry of Health Institute of Blood and Marrow Transplantation, Soochow University, Suzhou 215006, China
| | - T Z Wang
- Department of Hematology, the First Affiliated Hospital of Soochow University, National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, Key Laboratory of Thrombosis and Hemostasis Under Ministry of Health Institute of Blood and Marrow Transplantation, Soochow University, Suzhou 215006, China
| | - M Shan
- Department of Hematology, the First Affiliated Hospital of Soochow University, National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, Key Laboratory of Thrombosis and Hemostasis Under Ministry of Health Institute of Blood and Marrow Transplantation, Soochow University, Suzhou 215006, China
| | - J Y Xiao
- Department of Hematology, the First Affiliated Hospital of Soochow University, National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, Key Laboratory of Thrombosis and Hemostasis Under Ministry of Health Institute of Blood and Marrow Transplantation, Soochow University, Suzhou 215006, China
| | - H Tian
- Department of Hematology, the First Affiliated Hospital of Soochow University, National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, Key Laboratory of Thrombosis and Hemostasis Under Ministry of Health Institute of Blood and Marrow Transplantation, Soochow University, Suzhou 215006, China
| | - X Ma
- Department of Hematology, the First Affiliated Hospital of Soochow University, National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, Key Laboratory of Thrombosis and Hemostasis Under Ministry of Health Institute of Blood and Marrow Transplantation, Soochow University, Suzhou 215006, China
| | - Y Xu
- Department of Hematology, the First Affiliated Hospital of Soochow University, National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, Key Laboratory of Thrombosis and Hemostasis Under Ministry of Health Institute of Blood and Marrow Transplantation, Soochow University, Suzhou 215006, China
| | - D P Wu
- Department of Hematology, the First Affiliated Hospital of Soochow University, National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, Key Laboratory of Thrombosis and Hemostasis Under Ministry of Health Institute of Blood and Marrow Transplantation, Soochow University, Suzhou 215006, China
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Wang XG, He YZ, Wu TC, Li Y, Li ZJ, Tian H. [Comparison of alignment and position of prosthesis between portable accelerometer-based navigation device and conventional instrumentation in total knee arthroplasty with valgus deformity]. Zhonghua Yi Xue Za Zhi 2022; 102:56-61. [PMID: 34991238 DOI: 10.3760/cma.j.cn112137-20210909-02058] [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] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To explore the differences of alignment and position of prosthesis between portable accelerometer-based navigation device (PAD) and conventional instrumentation (CI) in total knee arthroplasty (TKA) with valgus deformity. Methods: Patients with knee osteoarthritis and valgus deformity who underwent primary TKA in Peking University Third Hospital from January 2017 to December 2020 were enrolled in this retrospective study and were divided into PAD group and CI group according to the surgical instruments. Five male patients and 44 female patients were included with a mean age of (67.2±7.0) years. The differences in preoperative general data, preoperative and postoperative alignment between the two groups were studied. Results: A total of 49 patients (25 patients in the PAD group and 24 in the CI group) were enrolled in this study. There were no statistically significant differences in gender, age, height, weight, body mass index, surgical side, preoperative hip-knee-ankle (HKA) angle, preoperative HKA angle deviation, Keblish classification and Ranawat classification between the two groups (all P>0.05). There was no significant difference in the accuracy of postoperative HKA angle (2.0°±1.4° vs 3.0°±2.2°, P=0.082), coronal femoral component angle (CFCA) (1.5°±1.2° vs 2.1°±1.6°, P=0.144) and coronal tibial component angle (CTCA) (1.2°±0.8° vs 1.3°±1.0°, P=0.695) between the two groups; but the standard deviation of the above-mentioned three indices in PAD group were all smaller than those in CI group. The rate of outliers of postoperative HKA angle of the PAD group was smaller than that in the CI group (P<0.05), but there was no significant difference in the rate of outliers of CFCA and CTCA between the two groups (both P>0.05). Conclusion: TKA assisted by PAD can provide good alignment and prosthesis position in patients with valgus deformity, and it is superior to TKA with CI in terms of precision and rate of outliers of postoperative overall alignment of lower extremity.
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Affiliation(s)
- X G Wang
- Department of Orthopaedics, Peking University Third Hospital, Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing 100191, China
| | - Y Z He
- Department of Orthopaedics, Peking University Third Hospital, Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing 100191, China
| | - T C Wu
- School of Public Health, Peking University, Beijing 100191, China
| | - Y Li
- Department of Orthopaedics, Peking University Third Hospital, Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing 100191, China
| | - Z J Li
- Department of Orthopaedics, Peking University Third Hospital, Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing 100191, China
| | - H Tian
- Department of Orthopaedics, Peking University Third Hospital, Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing 100191, China
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Li Y, Wang XG, Dong ZY, Li ZJ, Tian H, Tao LY. [Effect of the acetabular cup positioning and leg length restoration after total hip arthroplasty using robotic-assisted surgery system]. Zhonghua Yi Xue Za Zhi 2022; 102:43-48. [PMID: 34991236 DOI: 10.3760/cma.j.cn112137-20210716-01594] [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: 06/14/2023]
Abstract
Objective: To assess the improvement of the robotic-assisted total hip arthroplasty (rTHA) regarding the acetabular cup positioning and the leg length restoration. Methods: Clinical data of 246 patients undergoing primary unilateral THA from September 2019 to June 2021 in Peking University Third Hospital were retrospectively reviewed, including patients treated with rTHA (n=113) and conventional THA (cTHA) (n=133). Thirty-seven male patients along with 76 females were enrolled into the rTHA group with a mean age of (62±9) years. In comparison, the average age of cTHA group was (60±12) years with 59 males and 74 females. The postoperative inclination and anteversion of the acetabular cup and the rate of acetabular cup within the Lewinnek and Callanan "safe zone" were documented and analyzed. For the patient with normal or surgically restored contralateral hip, the leg length discrepancy was also measured and compared between the two groups. Results: The overall mean postoperative inclination and anteversion was 39.0°±5.5° and 14.1°±5.1°, respectively. No statistically significant difference was found between the rTHA and cTHA group regarding postoperative inclination (39.3°±2.9° vs 38.7°±7.0°, P=0.383) and anteversion (13.4°±4.3° vs 14.7°±5.6°, P=0.054). In rTHA group, 97.3%(110/113) of the cups were implanted within the Lewinnek"safe zone"(75.9%(101/133) in cTHA group) and 94.7%(107/113) were within the Callanan"safe zone"(66.2%(88/133) in cTHA group), and those were both higher in rTHA group (both P<0.01). There was no significant difference in postoperative leg length discrepancy between the two groups (P=0.445). Meanwhile, 29(23.0%) cases of cTHA group had leg length discrepancy more than 5 mm, and it was 9.7%(9/93) in rTHA group. Conclusion: It indicated the benefit of rTHA in acetabular cup positioning as well as the leg length restoration.
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Affiliation(s)
- Y Li
- Department of Orthopedics, Peking University Third Hospital, Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing 100191, China
| | - X G Wang
- Department of Orthopedics, Peking University Third Hospital, Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing 100191, China
| | - Z Y Dong
- Department of Orthopedics, Peking University Third Hospital, Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing 100191, China
| | - Z J Li
- Department of Orthopedics, Peking University Third Hospital, Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing 100191, China
| | - H Tian
- Department of Orthopedics, Peking University Third Hospital, Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing 100191, China
| | - L Y Tao
- Research Center of Clinical Epidemiology, Peking University Third Hospital, Beijing 100191, China
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Tian H. [Robotic assisted artificial hip and knee arthroplasty is an inevitable trend in the future]. Zhonghua Yi Xue Za Zhi 2022; 102:4-8. [PMID: 34991232 DOI: 10.3760/cma.j.cn112137-20210730-01692] [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: 06/14/2023]
Abstract
Artificial joint arthroplasty, such as total hip and total knee arthroplasty, is one of the most successful procedures in orthopedics. The quality of life of these patients can be improved significantly through relieving pain, correcting the deformity and improving joint function. Although hip and knee arthroplasty currently are routine surgeries for patients with late stage joint diseases, post-operative complications like leg length discrepancy, dislocation or instability, limp and uncertain reason pain are still common. The position of the implants plays important roles in all these complications. Robotic assisted joint arthroplasty can not only provide 3D pre-operative visual planning, but also can assist to fulfill the pre-operation plan perfectly. But the current joint arthroplasty robots cannot carry out automatic personalized pre-operation planning, and also have the shortcomings of low efficiency and high cost etc. However, based on their current performance and with the help of artificial intelligence and better algorithm, we believe that joint arthroplasty will be more and more precisive, intelligent and minimally invasive, which is an inevitable trend in the development of joint surgery.
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Affiliation(s)
- H Tian
- Department of Orthopaedics, Peking University Third Hospital, Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing 100191, China
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