52201
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Hu G, Huang J, Fussenegger M. Toward Photosynthetic Mammalian Cells through Artificial Endosymbiosis. Small 2024:e2310310. [PMID: 38506612 DOI: 10.1002/smll.202310310] [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: 11/10/2023] [Revised: 02/20/2024] [Indexed: 03/21/2024]
Abstract
Photosynthesis in plants occurs within specialized organelles known as chloroplasts, which are postulated to have originated through endosymbiosis with cyanobacteria. In nature, instances are also observed wherein specific invertebrates engage in symbiotic relationships with photosynthetic bacteria, allowing them to subsist as photoautotrophic organisms over extended durations. Consequently, the concept of engineering artificial endosymbiosis between mammalian cells and cyanobacteria represents a promising avenue for enabling photosynthesis in mammals. The study embarked with the identification of Synechocystis PCC 6803 as a suitable candidate for establishing a long-term endosymbiotic relationship with macrophages. The cyanobacteria internalized by macrophages exhibited the capacity to rescue ATP deficiencies within their host cells under conditions of illumination. Following this discovery, a membrane-coating strategy is developed for the intracellular delivery of cyanobacteria into non-macrophage mammalian cells. This pioneering technique led to the identification of human embryonic kidney cells HEK293 as optimal hosts for achieving sustained endosymbiosis with Synechocystis PCC 6803. The study offers valuable insights that may serve as a reference for the eventual achievement of artificial photosynthesis in mammals.
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Affiliation(s)
- Guipeng Hu
- Department of Biosystems Science and Engineering, ETH Zurich, Klingelbergstrasse 48, Basel, CH-4056, Switzerland
- School of Life Sciences and Health Engineering, Jiangnan University, Wuxi, China
| | - Jinbo Huang
- Department of Biosystems Science and Engineering, ETH Zurich, Klingelbergstrasse 48, Basel, CH-4056, Switzerland
| | - Martin Fussenegger
- Department of Biosystems Science and Engineering, ETH Zurich, Klingelbergstrasse 48, Basel, CH-4056, Switzerland
- Faculty of Science, University of Basel, Klingelbergstrasse 48, Basel, CH-4056, Switzerland
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52202
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Colak B, Ertas YN. Implantable, 3D-Printed Alginate Scaffolds with Bismuth Sulfide Nanoparticles for the Treatment of Local Breast Cancer via Enhanced Radiotherapy. ACS Appl Mater Interfaces 2024. [PMID: 38506616 DOI: 10.1021/acsami.3c17024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
Surgical removal of tumor tissue remains the primary clinical approach for addressing breast cancer; however, complete tumor excision is challenging, and the remaining tumor cells can lead to tumor recurrence and metastasis over time, which substantially deteriorates the life quality of the patients. With the aim to improve local cancer radiotherapy, this work reports the fabrication of alginate (Alg) scaffolds containing bovine serum albumin (BSA)-coated bismuth sulfide (Bi2S3@BSA) nanoradiosensitizers using three-dimensional (3D) printing. Under single-dose X-ray irradiation in vitro, Alg-Bi2S3@BSA scaffolds significantly increase the formation of reactive oxygen species, enhance the inhibition of breast cancer cells, and suppress their colony formation capacity. In addition, scaffolds implanted under tumor tissue in murine model show high therapeutic efficacy by reducing the tumor volume growth rate under single-dose X-ray irradiation, while histological observation of main organs reveals no cytotoxicity or side effects. 3D-printed Alg-Bi2S3@BSA scaffolds produced with biocompatible and biodegradable materials may potentially lower the recurrence and metastasis rates in breast cancer patients by inhibiting residual tumor cells following postsurgery as well as exhibit anticancer properties in other solid tumors.
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Affiliation(s)
- Busra Colak
- ERNAM─Nanotechnology Research and Application Center, Erciyes University, Kayseri 38039, Türkiye
- Department of Biomedical Engineering, Erciyes University, Kayseri 38039, Türkiye
| | - Yavuz Nuri Ertas
- ERNAM─Nanotechnology Research and Application Center, Erciyes University, Kayseri 38039, Türkiye
- Department of Biomedical Engineering, Erciyes University, Kayseri 38039, Türkiye
- UNAM─Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Türkiye
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52203
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Gray C, Porter G, Lobo R, Crawford G. Development and evaluation of health education resources for culturally and linguistically diverse populations: a systematic review. Health Educ Res 2024; 39:102-118. [PMID: 36994771 DOI: 10.1093/her/cyad015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 01/13/2023] [Accepted: 03/14/2023] [Indexed: 06/19/2023]
Abstract
People from culturally and linguistically diverse (CaLD) backgrounds in Australia generally experience poorer health outcomes, explained in part by low levels of health literacy. We conducted a systematic review to examine the development and evaluation of health education resources designed for CaLD populations. Five electronic databases were searched for English language, peer-reviewed studies published between 1980 and 2020. Thirty-four studies met the inclusion criteria. Twenty-four different health education resources were described and broadly categorized into four types: media campaigns (n = 10), text-based materials (n = 5), films (n = 8) and radio (n = 1). Studies were assessed against domains adapted from a health literacy guideline incorporating: need, collaboration, audience, health literacy, theory, test and process and impact evaluation. All but one study met the majority of the domains. All studies reported positive evaluation outcomes; this may be due to studies involving community early in resource design and including health literacy considerations in their design. Reporting resource design and evaluation against standard practice controls is recommended to build a more robust evidence base for developing effective health education resources for use by audiences from CaLD backgrounds.
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Affiliation(s)
- Corie Gray
- Curtin School of Population Health, Curtin University, GPO Box U1987, Perth, Western Australia 6845, Australia
| | - Georgia Porter
- Curtin School of Population Health, Curtin University, GPO Box U1987, Perth, Western Australia 6845, Australia
| | - Roanna Lobo
- Curtin School of Population Health, Curtin University, GPO Box U1987, Perth, Western Australia 6845, Australia
| | - Gemma Crawford
- Curtin School of Population Health, Curtin University, GPO Box U1987, Perth, Western Australia 6845, Australia
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52204
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Abstract
Covering: 2018 to Jun of 2023The efficiency of traditional antibiotics has been undermined by the proliferation of antibiotic-resistant pathogenic microorganisms, necessitating the pursuit of innovative therapeutic agents. Antimicrobial peptides (AMPs), which are part of host defence peptides found ubiquitously in nature, exhibiting a wide range of activity towards bacteria, fungi, and viruses, offer a highly promising candidate solution. The efficacy of AMPs can frequently be augmented via alterations to their amino acid sequences or structural adjustments. Given the vast reservoir of marine life forms and their distinctive ecosystems, marine AMPs stand as a burgeoning focal point in the quest for alternative peptide templates extracted from natural sources. Advances in identification and characterization techniques have accelerated the discoveries of marine AMPs, thereby stimulating AMP customization, optimization, and synthesis research endeavours. This review presents an overview of recent discoveries related to the intriguing qualities of marine AMPs. Emphasis will be placed upon post-translational modifications (PTMs) of marine AMPs and how they may impact functionality and potency. Additionally, this review considers ways in which marine PTM might support larger-scale, heterologous AMP manufacturing initiatives, providing insights into translational applications of these important biomolecules.
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Affiliation(s)
- Pengyu Chen
- Shenzhen Key Laboratory of Marine Bioresource and Eco-Environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China.
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Ting Ye
- Shenzhen Key Laboratory of Marine Bioresource and Eco-Environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China.
| | - Chunyuan Li
- Shenzhen Key Laboratory of Marine Bioresource and Eco-Environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China.
| | - Praveen Praveen
- Department of Biochemistry and Chemistry, La Trobe Institute for Molecular Science La Trobe University, Victoria, 3086, Australia.
| | - Zhangli Hu
- Shenzhen Key Laboratory of Marine Bioresource and Eco-Environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China.
| | - Wenyi Li
- Department of Biochemistry and Chemistry, La Trobe Institute for Molecular Science La Trobe University, Victoria, 3086, Australia.
| | - Chenjing Shang
- Shenzhen Key Laboratory of Marine Bioresource and Eco-Environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China.
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52205
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De Marco G, Simons J, Forsberg L, Douglas T. What makes a medical intervention invasive? J Med Ethics 2024; 50:226-233. [PMID: 37722810 DOI: 10.1136/jme-2023-109301] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 08/27/2023] [Indexed: 09/20/2023]
Abstract
The classification of medical interventions as either invasive or non-invasive is commonly regarded to be morally important. On the most commonly endorsed account of invasiveness, a medical intervention is invasive if and only if it involves either breaking the skin ('incision') or inserting an object into the body ('insertion'). Building on recent discussions of the concept of invasiveness, we show that this standard account fails to capture three aspects of existing usage of the concept of invasiveness in relation to medical interventions-namely, (1) usage implying that invasiveness comes in degrees, (2) that the invasiveness of an intervention can depend on the characteristics of the salient alternative interventions, and (3) that medical interventions can be invasive in non-physical ways. We then offer the beginnings of a revised account that, we argue, is able to capture a wider range of existing usage. Central to our account is a distinction between two properties: basic invasiveness and threshold invasiveness We end by assessing what the standard account gets right, and what more needs to be done to complete our schematic account.
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Affiliation(s)
- Gabriel De Marco
- Faculty of Philosophy, Oxford Uehiro Centre for Practical Ethics, University of Oxford, Oxford, UK
| | - Jannieke Simons
- Julius Centre for Health Sciences and Primary Care, Department of Bioethics and Health Humanities, University Medical Centre Utrecht, Utrecht, Netherlands
| | - Lisa Forsberg
- Faculty of Philosophy, Oxford Uehiro Centre for Practical Ethics, University of Oxford, Oxford, UK
- Somerville College, University of Oxford, Oxford, UK
| | - Thomas Douglas
- Faculty of Philosophy, Oxford Uehiro Centre for Practical Ethics, University of Oxford, Oxford, UK
- Jesus College, University of Oxford, Oxford, UK
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52206
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Nayak K, Ghosh P, Barman S, Sudhamalla B, Theato P, De P. Amyloid β-Peptide Segment Conjugated Side-Chain Proline-Based Polymers as Potent Inhibitors in Lysozyme Amyloidosis. Bioconjug Chem 2024; 35:312-323. [PMID: 38420925 DOI: 10.1021/acs.bioconjchem.3c00509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Developing effective amyloidosis inhibitors poses a significant challenge due to the dynamic nature of the protein structures, the complex interplay of interfaces in protein-protein interactions, and the irreversible nature of amyloid assembly. The interactions of amyloidogenic polypeptides with other peptides play a pivotal role in modulating amyloidosis and fibril formation. This study presents a novel approach for designing and synthesizing amyloid interaction surfaces using segments derived from the amyloid-promoting sequence of amyloid β-peptide [VF(Aβ(18-19)/FF(Aβ(19-20)/LVF(Aβ(17-19)/LVFF(Aβ(17-20)], where VF, FF, LVF and LVFF stands for valine phenylalanine dipeptide, phenylalanine phenylalanine dipeptide, leucine valine phenylalanine tripeptide and leucine valine phenylalanine phenylalanine tetrapeptide, respectively. These segments are conjugated with side-chain proline-based methacrylate polymers serving as potent lysozyme amyloidosis inhibitors and demonstrating reduced cytotoxicity of amyloid aggregations. Di-, tri-, and tetra-peptide conjugated chain transfer agents (CTAs) were synthesized and used for the reversible addition-fragmentation chain transfer polymerization of tert-butoxycarbonyl (Boc)-proline methacryloyloxyethyl ester (Boc-Pro-HEMA). Deprotection of Boc-groups from the side-chain proline pendants resulted in water-soluble polymers with defined peptide chain ends as peptide-polymer bioconjugates. Among them, the LVFF-conjugated polymer acted as a potent inhibitor with significantly suppressed lysozyme amyloidosis, a finding supported by comprehensive spectroscopic, microscopic, and computational analyses. These results unveil the synergistic effect between the segment-derived amyloid β-peptide and side-chain proline-based polymers, offering new prospects for targeting lysozyme amyloidosis.
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Affiliation(s)
- Kasturee Nayak
- Polymer Research Centre and Centre for Advanced Functional Materials, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, West Bengal 741246, India
| | - Pooja Ghosh
- Polymer Research Centre and Centre for Advanced Functional Materials, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, West Bengal 741246, India
- Centre for Interdisciplinary Sciences, JIS Institute of Advanced Studies & Research (JISIASR) Kolkata, JIS University, GP Block, Sector-5, Salt Lake, Kolkata, West Bengal 700091, India
| | - Soumen Barman
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, West Bengal 741246, India
| | - Babu Sudhamalla
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, West Bengal 741246, India
| | - Patrick Theato
- Karlsruhe Institute of Technology (KIT), Institute for Chemical Technology and Polymer Chemistry (ITCP), Engesserstraße 18, Karlsruhe 76131, Germany
- Karlsruhe Institute of Technology (KIT), Soft Matter Synthesis Laboratory,Institute for Biological Interfaces III (IBG-3), Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen 76344, Germany
| | - Priyadarsi De
- Polymer Research Centre and Centre for Advanced Functional Materials, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, West Bengal 741246, India
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52207
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Zhao LX, Chen KY, Luo K, He XL, Gao S, Fu Y, Zou YL, Ye F. Design, Synthesis, and Biological Activity of Novel Phenyltriazolinone PPO Inhibitors Containing Five-Membered Heterocycles. J Agric Food Chem 2024; 72:5625-5635. [PMID: 38447070 DOI: 10.1021/acs.jafc.3c07411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
Protoporphyrinogen oxidase (PPO, EC 1.3.3.4) catalyzes the oxidation of protoporphyrinogen IX to protoporphyrin IX, which is a key step in the synthesis of porphyrins in vivo. PPO inhibitors use protoporphyrinogen oxidase as the target and block the biosynthesis process of porphyrin by inhibiting the activity of the enzyme, eventually leading to plant death. In this paper, phenyl triazolinone was used as the parent structure, and the five-membered heterocycle with good herbicidal activity was introduced by using the principle of substructure splicing. According to the principle of bioisosterism, the sulfur atoms on the thiophene ring were replaced with oxygen atoms. Finally, 33 phenyl triazolinones and their derivatives were designed and synthesized, and their characterizations and biological activities were investigated. The in vitro PPO inhibitory activity and greenhouse herbicidal activity of 33 target compounds were determined, and compound D4 with better activity was screened out. The crop safety determination, field weeding effect determination, weeding spectrum determination, and crop metabolism study were carried out. The results showed that compound D4 showed good safety to corn, soybean, wheat, and peanut but poor selectivity to cotton. The field weeding effect of this compound is comparable to that of the commercial herbicide sulfentrazone. The herbicidal spectrum experiment showed that compound D4 had a wide herbicidal spectrum and a good growth inhibition effect on dicotyledonous weeds. Molecular docking results showed that compound D4 forms a hydrogen bond with amino acid residue Arg-98 in the tobacco mitochondria (mtPPO)-active pocket and forms two π-π stacking interactions with Phe-392. This indicates that compound D4 has stronger PPO inhibitory activity. This indicates that compound D4 has wide prospects for development.
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Affiliation(s)
- Li-Xia Zhao
- Department of Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin 150030, China
| | - Kun-Yu Chen
- Department of Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin 150030, China
| | - Kai Luo
- Department of Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin 150030, China
| | - Xiao-Li He
- Department of Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin 150030, China
| | - Shuang Gao
- Department of Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin 150030, China
| | - Ying Fu
- Department of Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin 150030, China
| | - Yue-Li Zou
- Department of Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin 150030, China
| | - Fei Ye
- Department of Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin 150030, China
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52208
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von Oesen T, Schrader K, Clawin-Rädecker I, Martin D, Treblin M, Hoffmann W, Bode K, Zink R, Rohn S, Fritsche J. Physicochemical and Sensory Characterization of Whey Protein-Enriched Semihard Cheese. J Agric Food Chem 2024; 72:5898-5911. [PMID: 38459945 DOI: 10.1021/acs.jafc.3c08731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/11/2024]
Abstract
In view of potential future changes of German food legislation with regard to cheese product quality parameters, this study aimed to evaluate the quality of whey protein-enriched semihard cheese (WPEC). Model WPEC was produced in a pilot plant and on an industrial scale by adding defined amounts of high-heat (HH) milk to the cheese milk and comprehensively analyzed during cheese processing. The dry matter, total protein, pure protein, fat, and sodium chloride content of six-week ripened cheese samples were not significantly different (p < 0.05) when the technologically necessary heating of the curd was adapted to the amount of HH milk. However, the ripening, firmness, and melting behavior of WPEC was different compared to cheese without HH milk. During ripening, no formation of whey protein peptides was observed, but differences in the amount of some bitter peptides deriving from the casein fraction were found. Sensory data suggested a slightly more bitter taste perception by the panelists for the WPEC. Further technological adjustments are recommended to obtain marketable WPEC.
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Affiliation(s)
- Tobias von Oesen
- Department of Safety and Quality of Milk and Fish Products, Max Rubner-Institut, Federal Research Institute of Nutrition and Food, Hermann-Weigmann-Straße 1, Kiel 24103, Germany
| | - Katrin Schrader
- Department of Safety and Quality of Milk and Fish Products, Max Rubner-Institut, Federal Research Institute of Nutrition and Food, Hermann-Weigmann-Straße 1, Kiel 24103, Germany
| | - Ingrid Clawin-Rädecker
- Department of Safety and Quality of Milk and Fish Products, Max Rubner-Institut, Federal Research Institute of Nutrition and Food, Hermann-Weigmann-Straße 1, Kiel 24103, Germany
| | - Dierk Martin
- Department of Safety and Quality of Milk and Fish Products, Max Rubner-Institut, Federal Research Institute of Nutrition and Food, Hermann-Weigmann-Straße 1, Kiel 24103, Germany
| | - Mascha Treblin
- Institute of Food Chemistry, Hamburg School of Food Science, University of Hamburg, Grindelallee 117, Hamburg 20146, Germany
| | - Wolfgang Hoffmann
- Department of Safety and Quality of Milk and Fish Products, Max Rubner-Institut, Federal Research Institute of Nutrition and Food, Hermann-Weigmann-Straße 1, Kiel 24103, Germany
| | - Katja Bode
- Center of Expertise Research & Technology (CoE-R&T), DMK Group (Deutsches Milchkontor GmbH), Flughafenallee 17, Bremen 28199, Germany
| | - Ralf Zink
- Center of Expertise Research & Technology (CoE-R&T), DMK Group (Deutsches Milchkontor GmbH), Flughafenallee 17, Bremen 28199, Germany
| | - Sascha Rohn
- Department of Food Chemistry and Analysis, Institute of Food Technology and Food Chemistry, Technische Universität Berlin, TIB 4/3 1, Gustav-Meyer-Allee 25, Berlin 13355, Germany
| | - Jan Fritsche
- Department of Safety and Quality of Milk and Fish Products, Max Rubner-Institut, Federal Research Institute of Nutrition and Food, Hermann-Weigmann-Straße 1, Kiel 24103, Germany
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52209
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Wang Z, Dai Y, Azi F, Wang Z, Xu W, Wang D, Dong M, Xia X. Constructing Protein-Scaffolded Multienzyme Assembly Enhances the Coupling Efficiency of the P450 System for Efficient Daidzein Biosynthesis from (2 S)-Naringenin. J Agric Food Chem 2024; 72:5849-5859. [PMID: 38468401 DOI: 10.1021/acs.jafc.3c09854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/13/2024]
Abstract
Daidzein is a major isoflavone compound with an immense pharmaceutical value. This study applied a novel P450 CYP82D26 which can biosynthesize daidzein from (2S)-naringenin. However, the recombinant P450 systems often suffer from low coupling efficiency, leading to an electron transfer efficiency decrease and harmful reactive oxygen species release, thereby compromising their stability and catalytic efficiency. To address these challenges, the SH3-GBD-PDZ (SGP) protein scaffold was applied to assemble a multienzyme system comprising CYP82D26, P450 reductase, and NADP+-dependent aldehyde reductase in desired stoichiometric ratios. Results showed that the coupling efficiency of the P450 system was significantly increased, primarily attributed to the channeling effect of NADPH resulting from the proximity of tethered enzymes and the electrostatic interactions between NADPH and SGP. Assembling this SGP-scaffolded assembly system in Escherichia coli yielded a titer of 240.5 mg/L daidzein with an 86% (2S)-naringenin conversion rate, which showed a 9-fold increase over the free enzymes of the P450 system. These results underscore the potential application of the SGP-scaffolded multienzyme system in enhancing the coupling and catalytic efficiency of the P450 system.
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Affiliation(s)
- Zhe Wang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
- Institute of Agro-Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Yiqiang Dai
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
- Institute of Agro-Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Fidelis Azi
- Department of Chemical Engineering, Guangdong Technion-Israel Institute of Technology, Shantou 515063, China
| | - Zhongjiang Wang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Weimin Xu
- Institute of Agro-Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Nanjing 210014, China
| | - Daoying Wang
- Institute of Agro-Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Nanjing 210014, China
| | - Mingsheng Dong
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiudong Xia
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
- Institute of Agro-Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Nanjing 210014, China
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
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52210
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Jiang Y, Ma C, Guan Y, Yang W, Yu J, Shi H, Ding Z, Zhang Z. Long noncoding RNA KCNQ1OT1 aggravates cerebral infarction by regulating PTBT1/SIRT1 via miR-16-5p. J Neuropathol Exp Neurol 2024; 83:276-288. [PMID: 38324733 DOI: 10.1093/jnen/nlae005] [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] [Indexed: 02/09/2024] Open
Abstract
Cerebral infarction (CI) is one of the leading causes of disability and death. LncRNAs are key factors in CI progression. Herein, we studied the function of long noncoding RNA KCNQ1OT1 in CI patient plasma samples and in CI models. Quantitative real-time PCR and Western blotting tested gene and protein expressions. The interactions of KCNQ1OT1/PTBP1 and miR-16-5p were analyzed using dual-luciferase reporter and RNA immunoprecipitation assays; MTT assays measured cell viability. Cell migration and angiogenesis were tested by wound healing and tube formation assays. Pathological changes were analyzed by triphenyltetrazolium chloride and routine staining. We found that KCNQ1OT1 and PTBP1 were overexpressed and miR-16-5p was downregulated in CI patient plasma and in oxygen-glucose deprived (OGD) induced mouse brain microvascular endothelial (bEnd.3) cells. KCNQ1OT1 knockdown suppressed pro-inflammatory cytokine production and stimulated angiogenic responses in OGD-bEnd.3 cells. KCNQ1OT1 upregulated PTBP1 by sponging miR-16-5p. PTBP1 overexpression or miR-16-5p inhibition attenuated the effects of KCNQ1OT1 knockdown. PTBP1 silencing protected against OGD-bEnd.3 cell injury by enhancing SIRT1. KCNQ1OT1 silencing or miR-16-5p overexpression also alleviated ischemic injury in a mice middle cerebral artery occlusion model. Thus, KCNQ1OT1 silencing alleviates CI by regulating the miR-16-5p/PTBP1/SIRT1 pathway, providing a theoretical basis for novel therapeutic strategies targeting CI.
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Affiliation(s)
- Yuanming Jiang
- Department of Neurology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Chi Ma
- Department of Neurology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Yuxiu Guan
- Department of Neurology, The Fifth Affiliated Hospital of Harbin Medical University, Daqing, Heilongjiang, China
| | - Wenqi Yang
- Department of Neurology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Jiaqi Yu
- Department of Neurology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Hanfei Shi
- Department of Neurology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Zihang Ding
- Department of Neurology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Zhuobo Zhang
- Department of Neurology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
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52211
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Huang J, Liu H, Yang D, Xu T, Wang J, Li J. Personalized treatment of well-differentiated gastric neuroendocrine tumors based on clinicopathological classification and grading: A multicenter retrospective study. Chin Med J (Engl) 2024; 137:720-728. [PMID: 38384175 PMCID: PMC10950134 DOI: 10.1097/cm9.0000000000003029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Indexed: 02/23/2024] Open
Abstract
BACKGROUND The incidence of well-differentiated gastric neuroendocrine tumors (G-NET) is increasing annually, and while they have a good prognosis and low mortality rate, their high recurrence rate makes treatment options controversial. This study aims to determine the relationship between individualized treatment plans and the recurrence of G-NET. METHODS We performed a multicenter, retrospective study of 94 patients with highly differentiated G-NET and treated at Peking Union Medical College Hospital, Yantai Yuhuangding Hospital, and Beijing Zhong-Neng-Jian Hospital from November 2015 to September 2023. Risk factors for recurrence of G-NETs were investigated using chi-squared test and multifactorial logistic regression analysis. RESULTS After a median follow-up of 49 months, the overall recurrence rate among the 94 G-NET patients was 14% (13/94). The recurrence rates of endoscopic mucosal resection (EMR), endoscopic submucosal dissection (ESD), somatostatin analog (SSA) therapy, and surgery were 43% (6/14), 10% (5/49), 5% (1/22), and 11% (1/9), respectively. Post-treatment recurrence rates were significantly different ( P = 0.014) among four treatments (EMR, ESD, SSA, and surgery), and further subgroup comparisons revealed lower recurrence rates in the ESD and SSA groups than in the EMR group. From the second month onward, SSA therapy considerably reduced the gastrin levels from 1081.0 (571.5, 2472.8) pg/mL to 461.5 (255.3, 795.0) pg/mL ( Z = -3.521, P <0.001). Both chi-squared test and multifactorial logistic regression analysis suggested that among the clinicopathological parameters studied, only the pre-treatment gastrin level ( P = 0.018 and 0.005) and the type of treatment ( P = 0.014 and 0.017) were significantly associated with G-NET recurrence. CONCLUSIONS Individualized treatment strategies may reduce the risk of relapse after G-NET treatment. Long-term SSA therapy may be a secure and efficacious treatment option for type 1 G-NET with more than six lesions, and it substantially decreases the incidence of post-treatment recurrence.
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Affiliation(s)
- Ju Huang
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100730, China
- Key Laboratory of Gut Microbiota Translational Medicine Research, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Huimin Liu
- Department of Gastroenterology, Affiliated Yantai Yuhuangding Hospital of Qingdao University Medical College, Yantai, Shandong 264000, China
| | - Dekun Yang
- Department of Gastroenterology, Beijing Zhong-Neng-Jian Hospital, Beijing 102401, China
| | - Tianming Xu
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100730, China
- Key Laboratory of Gut Microbiota Translational Medicine Research, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Jing Wang
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100730, China
- Key Laboratory of Gut Microbiota Translational Medicine Research, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Jingnan Li
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100730, China
- Key Laboratory of Gut Microbiota Translational Medicine Research, Chinese Academy of Medical Sciences, Beijing 100730, China
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52212
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Dong N, Jiang B, Chang Y, Wang Y, Xue C. Integrated Omics Approach: Revealing the Mechanism of Auxenochlorella pyrenoidosa Protein Extract Replacing Fetal Bovine Serum for Fish Muscle Cell Culture. J Agric Food Chem 2024; 72:6064-6076. [PMID: 38465450 DOI: 10.1021/acs.jafc.4c00624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
The process of producing cell-cultured meat involves utilizing a significant amount of culture medium, including fetal bovine serum (FBS), which represents a considerable portion of production expense while also raising environmental and safety concerns. This study demonstrated that supplementation with Auxenochlorella pyrenoidosa protein extract (APE) under low-serum conditions substantially increased Carassius auratus muscle (CAM) cell proliferation and heightened the expression of Myf5 compared to the absence of APE. An integrated intracellular metabolomics and proteomics analysis revealed a total of 13 and 67 differentially expressed metabolites and proteins, respectively, after supplementation with APE in the medium containing 5%FBS, modulating specific metabolism and signaling pathways, which explained the application of APE for passage cell culture under low-serum conditions. Further analysis revealed that the bioactive factors in the APE were protein components. Moreover, CAM cells cultured in reconstructed serum-free media containing APE, l-ascorbic acid, insulin, transferrin, selenium, and ethanolamine exhibited significantly accelerated growth in a scale-up culture. These findings suggest a promising alternative to FBS for fish muscle cell culture that can help reduce production costs and environmental impact in the production of cultured meat.
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Affiliation(s)
- Nannan Dong
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China
| | - Bingxue Jiang
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China
| | - Yaoguang Chang
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
| | - Yanchao Wang
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China
| | - Changhu Xue
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
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52213
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Yu S, Chen W, Liu G, Flores B, DeWolf EL, Fan B, Xiang Y, Webber MJ. Glucose-Driven Droplet Formation in Complexes of a Supramolecular Peptide and Therapeutic Protein. J Am Chem Soc 2024; 146:7498-7505. [PMID: 38465595 DOI: 10.1021/jacs.3c13139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Biology achieves remarkable function through processes arising from spontaneous or transient liquid-liquid phase separation (LLPS) of proteins and other biomolecules. While polymeric systems can achieve similar phenomena through simple or complex coacervation, LLPS with supramolecular materials has been less commonly shown. Functional applications for synthetic LLPS systems are an expanding area of emphasis, with particular focus on capturing the transient and dynamic state of these structures for use in biomedicine. Here, a net-cationic supramolecular peptide amphiphile building block with a glucose-binding motif is shown that forms LLPS structures when combined with a net-negatively charged therapeutic protein, dasiglucagon, in the presence of glucose. The droplets that arise are dynamic and coalesce quickly. However, the interface can be stabilized by addition of a 4-arm star PEG. When the stabilized droplets formed in glucose are transferred to a bulk phase containing different glucose concentrations, their stability and lifetime decrease according to bulk glucose concentration. This glucose-dependent formation translates into an accelerated release of dasiglucagon in the absence of glucose; this hormone analogue itself functions therapeutically to correct low blood glucose (hypoglycemia). These droplets also offer function in mitigating the most severe effects of hypoglycemia arising from an insulin overdose through delivery of dasiglucagon in a mouse model of hypoglycemic rescue. Accordingly, this approach to use complexation between a supramolecular peptide amphiphile and a therapeutic protein in the presence of glucose leads to droplets with functional potential to dissipate for the release of the therapeutic material in low blood glucose environments.
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Affiliation(s)
- Sihan Yu
- Department of Chemical & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Weike Chen
- Department of Chemical & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Guoqiang Liu
- Integrated Biomedical Sciences Program, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Belen Flores
- Department of Chemical & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Emily L DeWolf
- Department of Chemical & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Bowen Fan
- Department of Chemical & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Yuanhui Xiang
- Department of Chemical & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Matthew J Webber
- Department of Chemical & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
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52214
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Madalosso HB, Guindani C, Maniglia BC, Hermes de Araújo PH, Sayer C. Collagen-decorated electrospun scaffolds of unsaturated copolyesters for bone tissue regeneration. J Mater Chem B 2024; 12:3047-3062. [PMID: 38421173 DOI: 10.1039/d3tb02665e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Many efforts have been devoted to bone tissue to regenerate damaged tissues, and the development of new biocompatible materials that match the biological, mechanical, and chemical features required for this application is crucial. Herein, a collagen-decorated scaffold was prepared via electrospinning using a synthesized unsaturated copolyester (poly(globalide-co-pentadecalactone)), followed by two coupling reactions: thiol-ene functionalization with cysteine and further conjugation via EDC/NHS chemistry with collagen, aiming to design a bone tissue regeneration device with improved hydrophilicity and cell viability. Comonomer ratios were varied, affecting the copolymer's thermal and chemical properties and highlighting the tunable features of this copolyester. Functionalization with cysteine created new carboxyl and amine groups needed for bioconjugation with collagen, which is responsible for providing biological and structural integrity to the extra-cellular matrix. Bioconjugation with collagen turned the scaffold highly hydrophilic, decreasing its contact angle from 107 ± 2° to 0°, decreasing the copolymer crystallinity by 71%, and improving cell viability by 85% compared with the raw scaffold, thus promoting cell growth and proliferation. The highly efficient and biosafe strategy to conjugate polymers and proteins created a promising device for bone repair in tissue engineering.
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Affiliation(s)
- Heloísa Bremm Madalosso
- Department of Chemical Engineering and Food Engineering, Federal University of Santa Catarina, Campus Trindade, 88040-900, Florianópolis, Brazil.
| | - Camila Guindani
- Chemical Engineering Program/COPPE, Federal University of Rio de Janeiro, Cidade Universitária, CP: 68502, Rio de Janeiro, 21941-972 RJ, Brazil
| | - Bianca Chieregato Maniglia
- São Carlos Institute of Chemistry, University of São Paulo - USP, Campus São Carlos, 13566-590, São Carlos, SP, Brazil
| | - Pedro Henrique Hermes de Araújo
- Department of Chemical Engineering and Food Engineering, Federal University of Santa Catarina, Campus Trindade, 88040-900, Florianópolis, Brazil.
| | - Claudia Sayer
- Department of Chemical Engineering and Food Engineering, Federal University of Santa Catarina, Campus Trindade, 88040-900, Florianópolis, Brazil.
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52215
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Segovia-Campos I, Kanellakopoulos A, Barrozo IJ, Fock-Chin-Ming E, Filella M, Fontaine AB, Pallada S, Triscone G, Perron K, Ariztegui D. Strontium-90 pollution can be bioremediated with the green microalga Tetraselmis chui. Environ Sci Process Impacts 2024; 26:622-631. [PMID: 38334136 DOI: 10.1039/d3em00336a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
Strontium-90 (90Sr) is an artificial radioisotope produced by nuclear fission, with a relatively long half-life of 29 years. This radionuclide is released into the environment in the event of a nuclear incident, posing a serious risk to human and ecosystem health. There is a need to develop new efficient methods for the remediation of 90Sr, as current techniques for its removal have significant technical limitations and involve high energy and economic costs. Recently, several species of green microalgae within the class Chlorodendrophyceae have been found to form intracellular mineral inclusions of amorphous calcium carbonate (ACC), which can be highly enriched in natural (non-radiogenic) Sr. As bioremediation techniques are an attractive option to address radioactive pollution, we investigated the capacity of the unicellular alga Tetraselmis chui (class Chlorodendrophyceae) to sequester 90Sr. The 90Sr uptake capacity of T. chui cells was assessed in laboratory cultures by monitoring the time course of radioactivity in the culture medium using liquid scintillation counting (LSC). T. chui was shown to effectively sequester 90Sr, reducing the initial radioactivity of the culture medium by up to 50%. Thus, this study demonstrates the potential of the microalga T. chui to be used as a bioremediation agent against 90Sr pollution.
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Affiliation(s)
- Inés Segovia-Campos
- Department of Earth Sciences, University of Geneva, 1205 Geneva, Switzerland.
| | - Anastasios Kanellakopoulos
- Department of Engineering, University of Applied Sciences of Western Switzerland (HES-SO), 1202 Geneva, Switzerland
| | - Ivan John Barrozo
- Department of Engineering, University of Applied Sciences of Western Switzerland (HES-SO), 1202 Geneva, Switzerland
| | - Edouard Fock-Chin-Ming
- Department of Engineering, University of Applied Sciences of Western Switzerland (HES-SO), 1202 Geneva, Switzerland
| | - Montserrat Filella
- Department F.-A. Forel for Environmental and Aquatic Sciences, University of Geneva, Boulevard Carl-Vogt 66, CH-1205 Geneva, Switzerland.
| | - Axel Baxarias Fontaine
- Department of Engineering, University of Applied Sciences of Western Switzerland (HES-SO), 1202 Geneva, Switzerland
| | - Stavroula Pallada
- Department of Engineering, University of Applied Sciences of Western Switzerland (HES-SO), 1202 Geneva, Switzerland
| | - Gilles Triscone
- Department of Engineering, University of Applied Sciences of Western Switzerland (HES-SO), 1202 Geneva, Switzerland
| | - Karl Perron
- Department of Plant Sciences, Microbiology Unit, University of Geneva, 1205 Geneva, Switzerland
| | - Daniel Ariztegui
- Department of Earth Sciences, University of Geneva, 1205 Geneva, Switzerland.
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52216
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Lele AD, Xu Y, Ju Y. Modelling the effect of surface charging on plasma synthesis of ammonia using DFT. Phys Chem Chem Phys 2024; 26:9453-9461. [PMID: 38446432 DOI: 10.1039/d3cp06050k] [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: 03/07/2024]
Abstract
Non-equilibrium plasma has been found to have a synergistic effect on catalytic synthesis of NH3. The non-equilibrium plasma and catalyst surface together could affect NH3 synthesis through several mechanisms. Charging of the catalyst surface in the presence of non-equilibrium plasma is one such mechanism. We employed density functional theory (DFT) calculations to understand the effect of surface charge on surface reactivity of γ-Al2O3 supported single metal atom catalysts and a metal cluster. We investigated the effect of surface charge on adsorption energies of common adsorbates involved in NH3 synthesis. It is found that adsorption energy of N, N2, H, H2, NH and NH2 on metal atoms increases by up to ∼1.2 eV, whereas NH3 desorption is increased by up to 0.45 eV upon surface charging. The present results provide a new mechanism of plasma enhanced catalysis potentially explaining why Ni, Pt and Co have better catalytic performance compared to Ru and Fe in ammonia plasma catalysis. Furthermore, we found that the correlations between adsorption energies of adsorbates change significantly with surface charging. These findings suggest that surface charging might play an important role in plasma synthesis of NH3.
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Affiliation(s)
- Aditya Dilip Lele
- Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey, 08544, USA.
| | - Yijie Xu
- Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey, 08544, USA.
| | - Yiguang Ju
- Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey, 08544, USA.
- Princeton Plasma Physics Laboratory, Princeton, New Jersey, 08540, USA
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52217
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Koitaya T, Shiozawa Y, Yoshikura Y, Mukai K, Yoshimoto S, Yoshinobu J. Low-temperature dissociation of CO 2 molecules on vicinal Cu surfaces. Phys Chem Chem Phys 2024; 26:9226-9233. [PMID: 38444319 DOI: 10.1039/d3cp06336d] [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: 03/07/2024]
Abstract
The reaction of carbon dioxide on the vicinal Cu surfaces at low temperatures was investigated by infrared reflection absorption spectroscopy, scanning tunneling microscopy, X-ray photoelectron spectroscopy, and quadrupole mass spectrometry. Dissociation of CO2 molecules into CO on the Cu(997) and Cu(977) surfaces was observed at temperatures between 80 K and 90 K, whereas it did not occur on Cu(111) under a similar condition. CO and physisorbed CO2 were the main adsorbates during the reaction. In contrast, the amount of atomic oxygen on the surface was small. The dissociation of CO2 was promoted by the small amount of oxygen produced by the CO2 dissociation on the Cu surfaces. This leads to the induction period in the CO2 reaction; the initial reaction rate on the clean Cu surfaces was low, and the coadsorbed oxygen enhanced the dissociation reactivity of CO2. Mass analysis of desorption species during the reaction revealed that the observed CO formation on the vicinal Cu surface is mainly caused by an oxygen-exchange reaction with residual CO in an ultra-high vacuum chamber.
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Affiliation(s)
- Takanori Koitaya
- Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-Ku, Kyoto 606-8502, Japan.
| | - Yuichiro Shiozawa
- The Institute for Solid State Physics, The University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba, 277-8581, Japan.
| | - Yuki Yoshikura
- The Institute for Solid State Physics, The University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba, 277-8581, Japan.
| | - Kozo Mukai
- The Institute for Solid State Physics, The University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba, 277-8581, Japan.
| | - Shinya Yoshimoto
- The Institute for Solid State Physics, The University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba, 277-8581, Japan.
| | - Jun Yoshinobu
- The Institute for Solid State Physics, The University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba, 277-8581, Japan.
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52218
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Li T, Zhu K, Wang L, Dong Y, Huang J. Stabilization by Chaperone GroEL in Biogenic Selenium Nanoparticles Produced from Bifidobacterium animalis H15 for the Treatment of DSS-Induced Colitis. ACS Appl Mater Interfaces 2024; 16:13439-13452. [PMID: 38456847 DOI: 10.1021/acsami.3c16340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
Inflammatory bowel diseases have a high rate of mortality and pose a serious threat to global public health. Selenium is an essential trace element, which has been shown to play important roles in redox control and antioxidant defense. Microorganisms play important roles in the reduction of toxic inorganic selenium (selenite and selenate) to less-toxic biogenic selenium nanoparticles (Bio-SeNPs), which have higher biocompatibility. In the present study, novel Bio-SeNPs with high stability were synthesized using probiotic Bifidobacterium animalis subsp. lactis H15, which was isolated from breastfed infant feces. The Bio-SeNPs with a size of 122 nm showed stability at various ionic strengths, temperatures, and in simulated gastrointestinal fluid, while chemosynthetic SeNPs underwent aggregation. The main surface protein in the Bio-SeNPs was identified as chaperone GroEL by liquid chromatography-tandem mass spectrometry. The overexpression and purification of GroEL demonstrated that GroEL controlled the assembly of Bio-SeNPs both in vitro and in vivo. In vivo, oral administration of Bio-SeNPs could alleviate dextran sulfate sodium-induced colitis by decreasing cell apoptosis, increasing antioxidant capacity and the number of proliferating cells, and improving the function of the intestinal mucosal barrier. In vitro experiments verified that Bio-SeNPs inhibited lipopolysaccharide-induced toll-like receptor 4/NF-κB signaling pathway activation. These results suggest that the Bio-SeNPs with high stability could have potential as a nutritional supplement for the treatment of colitis in nanomedicine applications.
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Affiliation(s)
- Tong Li
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing 100083, China
| | - Kongdi Zhu
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing 100083, China
| | - Lianshun Wang
- College of Fisheries and Life Science, Dalian Ocean University, Dalian, Liaoning 116023, China
| | - Yulan Dong
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Jiaqiang Huang
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing 100083, China
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52219
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Wang L, Zhang D, Jiang B, Ding H, Feng S, Zhao C, Wang X, Wu J. 4-Phenylbutyric Acid Attenuates Soybean Glycinin/β-Conglycinin-Induced IPEC-J2 Cells Apoptosis by Regulating the Mitochondria-Associated Endoplasmic Reticulum Membrane and NLRP-3. J Agric Food Chem 2024; 72:5926-5934. [PMID: 38457471 DOI: 10.1021/acs.jafc.3c09630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/10/2024]
Abstract
Glycinin (11S) and β-conglycinin (7S) from soybean (glycine max) cause diarrhea and intestinal barrier damage in young animals. Understanding the mechanisms underlying the damage caused by 7S and 11S, it is vital to develop strategies to eliminate allergenicity. Consequently, we investigated 7S/11S-mediated apoptosis in porcine intestinal epithelial (IPEC-J2) cells. IPEC-J2 cells suffered endoplasmic reticulum stress (ERS) in response to 7S and 11S, activating protein kinase RNA-like ER kinase, activating transcription factor 6, C/EBP homologous protein, and inositol-requiring enzyme 1 alpha. 4-Phenylbutyric acid (4-PBA) treatment alleviated ERS; reduced the NLR family pyrin domain containing 3, interleukin-1β, and interleukin-18 levels; inhibited apoptosis; increased mitofusin 2 expression; and mitigated Ca2+ overload and mitochondria-associated ER membrane (MAM) dysfunction, thereby ameliorating IPEC-J2 injury. We demonstrated the pivotal role of ERS in MAM dysfunction and 7S- and 11S-mediated apoptosis, providing insights into 7S- and 11S-mediated intestinal barrier injury prevention and treatment.
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Affiliation(s)
- Lei Wang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230061, China
| | - Daoliang Zhang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230061, China
| | - Benzheng Jiang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230061, China
| | - Hongyan Ding
- Anhui Province Key Laboratory of Livestock and Poultry Product Safety Engineering, Institute of Animal Science and Veterinary Medicine, Anhui Academy of Agricultural Sciences, Hefei 230031, China
| | - Shibin Feng
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230061, China
| | - Chang Zhao
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230061, China
| | - Xichun Wang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230061, China
| | - Jinjie Wu
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230061, China
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52220
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Lai R, Li G, Cui Q. Flexibility of Binding Site is Essential to the Ca 2+ Selectivity in EF-Hand Calcium-Binding Proteins. J Am Chem Soc 2024; 146:7628-7639. [PMID: 38456823 DOI: 10.1021/jacs.3c13981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
High binding affinity and selectivity of metal ions are essential to the function of metalloproteins. Thus, understanding the factors that determine these binding characteristics is of major interest for both fundamental mechanistic investigations and guiding of the design of novel metalloproteins. In this work, we perform QM cluster model calculations and quantum mechanics/molecular mechanics (QM/MM) free energy simulations to understand the binding selectivity of Ca2+ and Mg2+ in the wild-type carp parvalbumin and its mutant. While a nonpolarizable MM model (CHARMM36) does not lead to the correct experimental trend, treatment of the metal binding site with the DFTB3 model in a QM/MM framework leads to relative binding free energies (ΔΔGbind) comparable with experimental data. For the wild-type (WT) protein, the calculated ΔΔGbind is ∼6.6 kcal/mol in comparison with the experimental value of 5.6 kcal/mol. The good agreement highlights the value of a QM description of the metal binding site and supports the role of electronic polarization and charge transfer to metal binding selectivity. For the D51A/E101D/F102W mutant, different binding site models lead to considerable variations in computed binding affinities. With a coordination number of seven for Ca2+, which is shown by QM/MM metadynamics simulations to be the dominant coordination number for the mutant, the calculated relative binding affinity is ∼4.8 kcal/mol, in fair agreement with the experimental value of 1.6 kcal/mol. The WT protein is observed to feature a flexible binding site that accommodates a range of coordination numbers for Ca2+, which is essential to the high binding selectivity for Ca2+ over Mg2+. In the mutant, the E101D mutation reduces the flexibility of the binding site and limits the dominant coordination number of Ca2+ to be seven, thereby leading to reduced binding selectivity against Mg2+. Our results highlight that the binding selectivity of metal ions depends on both the structural and dynamical properties of the protein binding site.
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Affiliation(s)
- Rui Lai
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
- Department of Chemistry, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
| | - Guohui Li
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Qiang Cui
- Department of Chemistry, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
- Department of Physics, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
- Department of Biomedical Engineering, Boston University, 44 Cummington Mall, Boston, Massachusetts 02215, United States
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52221
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Guo Y, Tong Z, Huang Y, Tang J, Xue X, Yang D, Yao C. Dynamic Assembly of DNA Nanostructures in Cancer Cells Enables the Coupling of Autophagy Activating and Real-Time Tracking. Nano Lett 2024; 24:3532-3540. [PMID: 38457281 DOI: 10.1021/acs.nanolett.4c00552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/10/2024]
Abstract
Developing dynamic nanostructures for in situ regulation of biological processes inside living cells is of great importance in biomedical research. Herein we report the cascaded assembly of Y-shaped branched DNA nanostructure (YDN) during intracellular autophagy. YDN contains one arm with semi-i-motif sequence and Cy3-BHQ2, and another arm with an apurinic/apyrimidinic (AP) site and Cy5-BHQ3. Upon uptake by cancer cells, intermolecular i-motif structures are formed in response to lysosomal H+, causing the formation of YDN-dimer and the recovery of Cy3 fluorescence; when escapes occur from the lysosome to the cytoplasm, the YDN-dimer responds to the overexpressed APE1, leading to the assembly of YDN into the DNA network and the fluorescence recovery of Cy5. Simultaneously, the cascaded assembly activates autophagy, and thus the process of assembly of YDN and autophagy flux can be spatiotemporally coupled. This work illustrates the potential of DNA nanostructures for the in situ regulation of intracellular dynamic events with spatiotemporal control.
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Affiliation(s)
- Yanfei Guo
- Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P.R. China
- Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, College of Chemistry and Materials, Fudan University, Shanghai 200438, P.R. China
| | - Zhaobin Tong
- Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P.R. China
| | - Yan Huang
- Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P.R. China
| | - Jianpu Tang
- Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P.R. China
- Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, College of Chemistry and Materials, Fudan University, Shanghai 200438, P.R. China
| | - Xue Xue
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin 300353, P.R. China
| | - Dayong Yang
- Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P.R. China
- Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, College of Chemistry and Materials, Fudan University, Shanghai 200438, P.R. China
| | - Chi Yao
- Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P.R. China
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52222
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Muranishi Y, Kobori Y, Katoh-Fukui Y, Tamaoka S, Hattori A, Osaka A, Okada H, Nakabayashi K, Hata K, Kawai T, Ogata-Kawata H, Iwahata T, Saito K, Kon M, Shinohara N, Fukami M. Systematic molecular analyses for 115 karyotypically normal men with isolated non-obstructive azoospermia. Hum Reprod 2024:deae057. [PMID: 38511217 DOI: 10.1093/humrep/deae057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 02/21/2024] [Indexed: 03/22/2024] Open
Abstract
STUDY QUESTION Do copy-number variations (CNVs) in the azoospermia factor (AZF) regions and monogenic mutations play a major role in the development of isolated (non-syndromic) non-obstructive azoospermia (NOA) in Japanese men with a normal 46, XY karyotype? SUMMARY ANSWER Deleterious CNVs in the AZF regions and damaging sequence variants in eight genes likely constitute at least 8% and approximately 8% of the genetic causes, respectively, while variants in other genes play only a minor role. WHAT IS KNOWN ALREADY Sex chromosomal abnormalities, AZF-linked microdeletions, and monogenic mutations have been implicated in isolated NOA. More than 160 genes have been reported as causative/susceptibility/candidate genes for NOA. STUDY DESIGN, SIZE, DURATION Systematic molecular analyses were conducted for 115 patients with isolated NOA and a normal 46, XY karyotype, who visited our hospital between 2017 and 2021. PARTICIPANTS/MATERIALS, SETTING, METHODS We studied 115 unrelated Japanese patients. AZF-linked CNVs were examined using sequence-tagged PCR and multiplex ligation-dependent probe amplification, and nucleotide variants were screened using whole exome sequencing (WES). An optimized sequence kernel association test (SKAT-O), a gene-based association study using WES data, was performed to identify novel disease-associated genes in the genome. The results were compared to those of previous studies and our in-house control data. MAIN RESULTS AND THE ROLE OF CHANCE Thirteen types of AZF-linked CNVs, including the hitherto unreported gr/gr triplication and partial AZFb deletion, were identified in 63 (54.8%) cases. When the gr/gr deletion, a common polymorphism in Japan, was excluded from data analyses, the total frequency of CNVs was 23/75 (30.7%). This frequency is higher than that of the reference data in Japan and China (11.1% and 14.7%, respectively). Known NOA-causative AZF-linked CNVs were found in nine (7.8%) cases. Rare damaging variants in known causative genes (DMRT1, PLK4, SYCP2, TEX11, and USP26) and hemizygous/multiple-heterozygous damaging variants in known spermatogenesis-associated genes (TAF7L, DNAH2, and DNAH17) were identified in nine cases (7.8% in total). Some patients carried rare damaging variants in multiple genes. SKAT-O detected no genes whose rare damaging variants were significantly accumulated in the patient group. LIMITATIONS, REASONS FOR CAUTION The number of participants was relatively small, and the clinical information of each patient was fragmentary. Moreover, the pathogenicity of identified variants was assessed only by in silico analyses. WIDER IMPLICATIONS OF THE FINDINGS This study showed that various AZF-linked CNVs are present in more than half of Japanese NOA patients. These results broadened the structural variations of AZF-linked CNVs, which should be considered for the molecular diagnosis of spermatogenic failure. Furthermore, the results of this study highlight the etiological heterogeneity and possible oligogenicity of isolated NOA. STUDY FUNDING/COMPETING INTEREST(S) This study was supported by Grants from the Japan Society for the Promotion of Science (21K19283 and 21H0246), the Japan Agency for Medical Research and Development (22ek0109464h0003), the National Center for Child Health and Development, the Canon Foundation, the Japan Endocrine Society, and the Takeda Science Foundation. The results of this study were based on samples and patient data obtained from the International Center for Reproductive Medicine, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan. The authors have no conflicts of interest to disclose. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- Yuki Muranishi
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan
- Department of Renal and Genitourinary Surgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Yoshitomo Kobori
- International Center for Reproductive Medicine, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan
| | - Yuko Katoh-Fukui
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Satoshi Tamaoka
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Atsushi Hattori
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Akiyoshi Osaka
- International Center for Reproductive Medicine, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan
| | - Hiroshi Okada
- International Center for Reproductive Medicine, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan
| | - Kazuhiko Nakabayashi
- Department of Maternal-Fetal Biology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Kenichiro Hata
- Department of Maternal-Fetal Biology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Tomoko Kawai
- Department of Maternal-Fetal Biology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Hiroko Ogata-Kawata
- Department of Maternal-Fetal Biology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Toshiyuki Iwahata
- International Center for Reproductive Medicine, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan
| | - Kazuki Saito
- Department of Comprehensive Reproductive Medicine, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
| | - Masafumi Kon
- Department of Renal and Genitourinary Surgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Nobuo Shinohara
- Department of Renal and Genitourinary Surgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Maki Fukami
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan
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52223
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Fink L, van Oorschot B, von Saß C, Dibué M, Foster MT, Golla H, Goldbrunner R, Senft C, Lawson McLean A, Hellmich M, Dinc N, Voltz R, Melching H, Jungk C, Kamp MA. Palliative care for in-patient malignant glioma patients in Germany. J Neurooncol 2024:10.1007/s11060-024-04611-8. [PMID: 38506960 DOI: 10.1007/s11060-024-04611-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Accepted: 02/16/2024] [Indexed: 03/22/2024]
Abstract
OBJECTIVE Malignant gliomas impose a significant symptomatic burden on patients and their families. Current guidelines recommend palliative care for patients with advanced tumors within eight weeks of diagnosis, emphasizing early integration for malignant glioma cases. However, the utilization rate of palliative care for these patients in Germany remains unquantified. This study investigates the proportion of malignant glioma patients who either died in a hospital or were transferred to hospice care from 2019 to 2022, and the prevalence of in-patient specialized palliative care interventions. METHODS In this cross-sectional, retrospective study, we analyzed data from the Institute for the Hospital Remuneration System (InEK GmbH, Siegburg, Germany), covering 2019 to 2022. We included patients with a primary or secondary diagnosis of C71 (malignant glioma) in our analysis. To refine our dataset, we identified cases with dual-coded primary and secondary diagnoses and excluded these to avoid duplication in our final tally. The data extraction process involved detailed scrutiny of hospital records to ascertain the frequency of hospital deaths, hospice transfers, and the provision of complex or specialized palliative care for patients with C71-coded diagnoses. Descriptive statistics and inferential analyses were employed to evaluate the trends and significance of the findings. RESULTS From 2019 to 2022, of the 101,192 hospital cases involving malignant glioma patients, 6,129 (6% of all cases) resulted in in-hospital mortality, while 2,798 (2.8%) led to hospice transfers. Among these, 10,592 cases (10.5% of total) involved the administration of complex or specialized palliative medical care. This provision rate remained unchanged throughout the COVID-19 pandemic. Notably, significantly lower frequencies of complex or specialized palliative care implementation were observed in patients below 65 years (p < 0.0001) and in male patients (padjusted = 0.016). In cases of in-hospital mortality due to malignant gliomas, 2,479 out of 6,129 cases (40.4%) received specialized palliative care. CONCLUSION Despite the poor prognosis and complex symptomatology associated with malignant gliomas, only a small proportion of affected patients received advanced palliative care. Specifically, only about 10% of hospitalized patients with malignant gliomas, and approximately 40% of those who succumb to the disease in hospital settings, were afforded complex or specialized palliative care. This discrepancy underscores an urgent need to expand palliative care access for this patient demographic. Additionally, it highlights the importance of further research to identify and address the barriers preventing wider implementation of palliative care in this context.
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Affiliation(s)
- Larissa Fink
- Center for Palliative and Neuro-palliative Care, Brandenburg Medical School Theodor Fontane, Faculty of Health Sciences Brandenburg, Am Seebad 82/83, 15562, Rüdersdorf bei Berlin, Germany
| | - Birgitt van Oorschot
- Interdisciplinary Center for Palliative Medicine, University Hospital Würzburg, Würzburg, , Germany
| | - Christiane von Saß
- Center for Palliative and Neuro-palliative Care, Brandenburg Medical School Theodor Fontane, Faculty of Health Sciences Brandenburg, Am Seebad 82/83, 15562, Rüdersdorf bei Berlin, Germany
| | - Maxine Dibué
- Center for Neurosurgery, Department of General Neurosurgery, University of Cologne, Cologne, Germany
| | - Marie-Therese Foster
- Department of Neurosurgery, Goethe University Hospital, Frankfurt am Main, Germany
| | - Heidrun Golla
- Department of Palliative Medicine, Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany
| | - Ronald Goldbrunner
- Department of Palliative Medicine, Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany
| | - Christian Senft
- Center of Neuro-Oncology, Department of Neurosurgery, Jena University Hospital, Friedrich-Schiller-University, Jena, Germany
| | - Aaron Lawson McLean
- Center of Neuro-Oncology, Department of Neurosurgery, Jena University Hospital, Friedrich-Schiller-University, Jena, Germany
| | - Martin Hellmich
- Institute of Medical Statistics and Computational Biology (IMSB), Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Nazife Dinc
- Center of Neuro-Oncology, Department of Neurosurgery, Jena University Hospital, Friedrich-Schiller-University, Jena, Germany
| | - Raymond Voltz
- Department of Palliative Medicine, Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany
- Clinical Trials Centre Cologne (CTCC), Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany
- Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf (CIO ABCD), Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany
- Center for Health Services Research (ZVFK), Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany
| | - Heiner Melching
- German Association for Palliative Care Medicine, Berlin, Germany
| | - Christine Jungk
- Department of Neurosurgery, University Hospital Heidelberg, Heidelberg, Germany
- Department of Neurosurgery, Medical Faculty, Heidelberg University, Heidelberg, Germany
| | - Marcel A Kamp
- Center for Palliative and Neuro-palliative Care, Brandenburg Medical School Theodor Fontane, Faculty of Health Sciences Brandenburg, Am Seebad 82/83, 15562, Rüdersdorf bei Berlin, Germany.
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52224
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Kuang L, Fei S, Zhou H, Huang L, Guo C, Cheng J, Guo W, Ye Y, Wang R, Xiong H, Zhang J, Tang D, Zou L, Qiu X, Yu Y, Song L. Added Value of Frequency of Imaging Markers for Prediction of Outcome After Intracerebral Hemorrhage: A Secondary Analysis of Existing Data. Neurocrit Care 2024:10.1007/s12028-024-01963-x. [PMID: 38506972 DOI: 10.1007/s12028-024-01963-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 02/16/2024] [Indexed: 03/22/2024]
Abstract
BACKGROUND Frequency of imaging markers (FIM) has been identified as an independent predictor of hematoma expansion in patients with intracerebral hemorrhage (ICH), but its impact on clinical outcome of ICH is yet to be determined. The aim of the present study was to investigate this association. METHODS This study was a secondary analysis of our prior research. The data for this study were derived from six retrospective cohorts of ICH from January 2018 to August 2022. All consecutive study participants were examined within 6 h of stroke onset on neuroimaging. FIM was defined as the ratio of the number of imaging markers on noncontrast head tomography (i.e., hypodensities, blend sign, and island sign) to onset-to-neuroimaging time. The primary poor outcome was defined as a modified Rankin Scale score of 3-6 at 3 months. RESULTS A total of 1253 patients with ICH were included for final analysis. Among those with available follow-up results, 713 (56.90%) exhibited a poor neurologic outcome at 3 months. In a univariate analysis, FIM was associated with poor prognosis (odds ratio 4.36; 95% confidence interval 3.31-5.74; p < 0.001). After adjustment for age, Glasgow Coma Scale score, systolic blood pressure, hematoma volume, and intraventricular hemorrhage, FIM was still an independent predictor of worse prognosis (odds ratio 3.26; 95% confidence interval 2.37-4.48; p < 0.001). Based on receiver operating characteristic curve analysis, a cutoff value of 0.28 for FIM was associated with 0.69 sensitivity, 0.66 specificity, 0.73 positive predictive value, 0.62 negative predictive value, and 0.71 area under the curve for the diagnosis of poor outcome. CONCLUSIONS The metric of FIM is associated with 3-month poor outcome after ICH. The novel indicator that helps identify patients who are likely within the 6-h time window at risk for worse outcome would be a valuable addition to the clinical management of ICH.
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Affiliation(s)
- Lianghong Kuang
- Department of Neurology, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Huangshi, China
| | - Shinuan Fei
- Department of Pediatrics, Huangshi Maternity and Children's Health Hospital, Affiliated Maternity and Children's Health Hospital of Hubei Polytechnic University, Huangshi, China
| | - Hang Zhou
- Department of Radiology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, China
| | - Le Huang
- Postgraduate Joint Training Base of Huangshi Central Hospital, Wuhan University of Science and Technology, Huangshi, China
| | - Cailian Guo
- Postgraduate Joint Training Base of Huangshi Central Hospital, Wuhan University of Science and Technology, Huangshi, China
| | - Jun Cheng
- Computer School, Hubei Polytechnic University, Huangshi, China
| | - Wenmin Guo
- Department of Radiology, Xiangyang No. 1 People's Hospital, Hubei University of Medicine, Xiangyang, China
| | - Yu Ye
- Department of Radiology, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, No. 141, Tianjin Road, Huangshigang District, Huangshi, 435000, China
| | - Rujia Wang
- Department of Radiology, Tangshan Gongren Hospital, Tangshan, China
| | - Hui Xiong
- Department of Radiology, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, No. 141, Tianjin Road, Huangshigang District, Huangshi, 435000, China
| | - Ji Zhang
- Department of Clinical Laboratory, Xiangyang Central Haspital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, China
| | - Dongfang Tang
- Department of Neurosurgery, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, China
| | - Liwei Zou
- Department of Radiology, The Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Xiaoming Qiu
- Department of Radiology, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, No. 141, Tianjin Road, Huangshigang District, Huangshi, 435000, China
| | - Yongqiang Yu
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Lei Song
- Department of Radiology, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, No. 141, Tianjin Road, Huangshigang District, Huangshi, 435000, China.
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52225
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Koga S, Du W. ChatGPT's limited accuracy in generating anatomical images for medical education. Skeletal Radiol 2024:10.1007/s00256-024-04655-x. [PMID: 38506966 DOI: 10.1007/s00256-024-04655-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 03/06/2024] [Accepted: 03/11/2024] [Indexed: 03/22/2024]
Affiliation(s)
- Shunsuke Koga
- Department of Pathology and Laboratory Medicine, Hospital of the University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA, 19104, USA.
| | - Wei Du
- Department of Pathology and Laboratory Medicine, Hospital of the University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA, 19104, USA
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52226
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Wu F, Wang P, Yang H, Wu J, Liu Y, Yang Y, Zuo Z, Wu T, Li J. Research on predicting hematoma expansion in spontaneous intracerebral hemorrhage based on deep features of the VGG-19 network. Postgrad Med J 2024:qgae037. [PMID: 38507237 DOI: 10.1093/postmj/qgae037] [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: 12/19/2023] [Accepted: 12/28/2024] [Indexed: 03/22/2024]
Abstract
PURPOSE To construct a clinical noncontrastive computed tomography (NCCT) deep learning joint model for predicting early hematoma expansion (HE) after cerebral hemorrhage (sICH) and evaluate its predictive performance. METHODS All 254 patients with primary cerebral hemorrhage from January 2017 to December 2022 in the General Hospital of the Western Theater Command were included. According to the criteria of hematoma enlargement exceeding 33% or the volume exceeding 6 ml, the patients were divided into the HE group and the hematoma non-enlargement (NHE) group. Multiple models and the 10-fold cross-validation method were used to screen the most valuable features and model the probability of predicting HE. The area under the curve (AUC) was used to analyze the prediction efficiency of each model for HE. RESULTS They were randomly divided into a training set of 204 cases in an 8:2 ratio and 50 cases of the test set. The clinical imaging deep feature joint model (22 features) predicted the area under the curve of HE as follows: clinical Navie Bayes model AUC 0.779, traditional radiology logistic regression (LR) model AUC 0.818, deep learning LR model AUC 0.873, and clinical NCCT deep learning multilayer perceptron model AUC 0.921. CONCLUSION The combined clinical imaging deep learning model has a high predictive effect for early HE in sICH patients, which is helpful for clinical individualized assessment of the risk of early HE in sICH patients.
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Affiliation(s)
- Fa Wu
- Department of Radiology, The General Hospital of Western Theater Command, No. 270, Tianhui Road, Rongdu Avenue, Jinniu District, Chengdu, Sichuan Province 610083, PR China
| | - Peng Wang
- Department of Radiology, The General Hospital of Western Theater Command, No. 270, Tianhui Road, Rongdu Avenue, Jinniu District, Chengdu, Sichuan Province 610083, PR China
| | - Huimin Yang
- Department of Ultrasound, The General Hospital of Western Theater Command, No. 270, Tianhui Road, Rongdu Avenue, Jinniu District, Chengdu, Sichuan Province 610083, PR China
| | - Jie Wu
- Department of Radiology, The General Hospital of Western Theater Command, No. 270, Tianhui Road, Rongdu Avenue, Jinniu District, Chengdu, Sichuan Province 610083, PR China
| | - Yi Liu
- Department of Radiology, The General Hospital of Western Theater Command, No. 270, Tianhui Road, Rongdu Avenue, Jinniu District, Chengdu, Sichuan Province 610083, PR China
| | - Yulin Yang
- Department of Ultrasound, Chengdu 5th People's Hospital, No. 33, Mashi Street, Liucheng Town, Wenjiang District, Chengdu, Sichuan 611100, PR China
| | - Zhiwei Zuo
- Department of Radiology, The General Hospital of Western Theater Command, No. 270, Tianhui Road, Rongdu Avenue, Jinniu District, Chengdu, Sichuan Province 610083, PR China
| | - Tingting Wu
- Neurosurgery Department, The General Hospital of Western Theater Command, No. 270, Tianhui Road, Rongdu Avenue, Jinniu District, Chengdu, Sichuan Province 610083, PR China
| | - Jianghao Li
- Department of Radiology, The General Hospital of Western Theater Command, No. 270, Tianhui Road, Rongdu Avenue, Jinniu District, Chengdu, Sichuan Province 610083, PR China
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52227
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Muller AE, De Winter BCM, Koch BCP. Towards optimizing cefepime/tazobactam (WCK 4282) exposure to achieve efficacy against piperacillin/tazobactam-resistant ESBL infections: dose recommendations for various renal functions, including intermittent haemodialysis, in healthy individuals. J Antimicrob Chemother 2024:dkae076. [PMID: 38507250 DOI: 10.1093/jac/dkae076] [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: 09/10/2023] [Accepted: 02/29/2024] [Indexed: 03/22/2024] Open
Abstract
OBJECTIVES WCK 4282 is a novel combination of cefepime 2 g and tazobactam 2 g being developed for the treatment of infections caused by piperacillin/tazobactam-resistant ESBL infections. The dosing regimen for cefepime/tazobactam needs to be optimized to generate adequate exposures to treat infections caused by ESBL-producing pathogens resistant to both cefepime and piperacillin/tazobactam. METHODS We developed pharmacokinetic population models of cefepime and tazobactam to evaluate the optimal dose adjustments in patients, including those with augmented renal clearance as well as various degrees of renal impairment, and also for those on intermittent haemodialysis. Optimal doses for various degrees of renal function were identified by determining the PTA for a range of MICs. To cover ESBL-producing pathogens with an cefepime/tazobactam MIC of 16 mg/L, a dosing regimen of 2 g q8h infused over 1.5 h resulted in a combined PTA of 99% for the mean murine 1 log10-kill target for the cefepime/tazobactam combination. RESULTS We found that to adjust for renal function, doses need to be reduced to 1 g q8h, 500 mg q8h and 500 mg q12h for patients with CLCR of 30-59, 15-29 and 8-14 mL/min (as well as patients with intermittent haemodialysis), respectively. In patients with high to augmented CLR (estimated CLCR 120-180 mL/min), a prolonged 4 h infusion of standard dose is required. CONCLUSIONS The suggested dosing regimens will result in exposures of cefepime and tazobactam that would be adequate for infections caused by ESBL-producing pathogens with a cefepime/tazobactam MICs up to 16 mg/L.
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Affiliation(s)
- Anouk E Muller
- Department of Medical Microbiology, Haaglanden Medisch Centrum, The Hague, The Netherlands
- Department of Medical Microbiology and Infectious Diseases, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
- Center for Antimicrobial Treatment Optimization Rotterdam (CATOR), Rotterdam, The Netherlands
| | - Brenda C M De Winter
- Center for Antimicrobial Treatment Optimization Rotterdam (CATOR), Rotterdam, The Netherlands
- Department of Hospital Pharmacy, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
- Rotterdam Clinical Pharmacometrics Group, Rotterdam, The Netherlands
| | - Birgit C P Koch
- Center for Antimicrobial Treatment Optimization Rotterdam (CATOR), Rotterdam, The Netherlands
- Department of Hospital Pharmacy, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
- Rotterdam Clinical Pharmacometrics Group, Rotterdam, The Netherlands
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52228
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Bouza M, Foest D, Brandt S, García-Reyes JF, Franzke J. Enhanced Compound Analysis Using Reactive Paper Spray Mass Spectrometry: Leveraging Schiff Base Reaction for Amino Acid Detection. Anal Chem 2024. [PMID: 38507224 DOI: 10.1021/acs.analchem.4c00215] [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: 03/22/2024]
Abstract
Paper spray mass spectrometry (PS-MS) has evolved into a promising tool for monitoring reactions in thin films and microdroplets, known as reactive PS, alongside its established role in ambient and direct ionization. This study addresses the need for rapid, cost-effective methods to improve analyte identification in biofluids by leveraging reactive PS-MS in clinical chemistry environments. The technique has proven effective in derivatizing target analytes, altering hydrophobicity to enhance elution and ionization efficiency, and refining detection through thin-film reactions on paper, significantly expediting reaction rates by using amino acids (AAs) as model analytes. These molecules are prone to interacting with substrates like paper, impeding elution and detection. Additionally, highly abundant species in biofluids, such as lipids, often suppress AA ionization. This study employs the Schiff base (SB) reaction utilizing aromatic aldehydes for AA derivatization to optimize reaction conditions time, temperature, and catalyst presence and dramatically increasing the conversion ratio (CR) of formed SB. For instance, using leucine as a model AA, the CR surged from 57% at room temperature to 89% at 70 °C, with added pyridine during and after 7.5 min, displaying a 43% CR compared to the bulk reaction. Evaluation of various aromatic aldehydes as derivatization agents highlighted the importance of specific oxygen substituents for achieving higher conversion rates. Furthermore, diverse derivatization agents unveiled unique fragmentation pathways, aiding in-depth annotation of the target analyte. Successfully applied to quantify AAs in human and rat plasma, this reactive PS-MS approach showcases promising potential in efficiently detecting conventionally challenging compounds in PS-MS analysis.
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Affiliation(s)
- Marcos Bouza
- Analytical Chemistry Research Group, Department of Physical and Analytical Chemistry, University of Jaén, Campus Las Lagunillas, Jaén 23071, Spain
| | - Daniel Foest
- ISAS─Leibniz Institut für Analytische Wissenschaften, Bunsen-Kirchhoff-Str. 11, Dortmund 44139, Germany
| | - Sebastian Brandt
- ISAS─Leibniz Institut für Analytische Wissenschaften, Bunsen-Kirchhoff-Str. 11, Dortmund 44139, Germany
| | - Juan F García-Reyes
- Analytical Chemistry Research Group, Department of Physical and Analytical Chemistry, University of Jaén, Campus Las Lagunillas, Jaén 23071, Spain
| | - Joachim Franzke
- ISAS─Leibniz Institut für Analytische Wissenschaften, Bunsen-Kirchhoff-Str. 11, Dortmund 44139, Germany
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52229
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Cui Z, Ji R, Xie J, Wang C, Tian J, Zhang W. Tumor Microenvironment-Triggered Self-Adaptive Polymeric Photosensitizers for Enhanced Photodynamic Therapy. Biomacromolecules 2024. [PMID: 38507248 DOI: 10.1021/acs.biomac.3c01150] [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: 03/22/2024]
Abstract
Photodynamic therapy (PDT) employs photosensitizers to convert nearby oxygen into toxic singlet oxygen (1O2) upon laser light irradiation, showing great potential as a noninvasive approach for tumor ablation. However, the therapeutic efficacy of PDT is essentially impeded by π-π stacking and the aggregation of photosensitizers. Herein, we propose a tumor microenvironment-triggered self-adaptive nanoplatform to weaken the aggregation of photosensitizers by selenium-based oxidation at the tumor site. The selenide units in a selenium-based porphyrin-containing amphiphilic copolymer (PSe) could be oxidized into hydrophilic selenoxide units, leading to the nanoplatform self-expansion and stretching of the distance between intramolecular porphyrin units. This process could provide a better switch to greatly reduce the aggregation of photosensitive porphyrin units, generating more 1O2 upon laser irradiation. As verified in a series of in vitro and in vivo studies, PSe could be efficiently self-adapted at tumor sites, thus significantly enhancing the PDT therapeutic effect against solid tumors and minimizing side effects.
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Affiliation(s)
- Zepeng Cui
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Ruqian Ji
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jun Xie
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Chao Wang
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jia Tian
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Weian Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
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52230
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Di Biase M, Brugnoli L, Miyatani K, Akaji M, Yoshida T, Urata S, Pedone A. Impact of Atomic Defects on Ceria Surfaces on Chemical Mechanical Polishing of Silica Glass Surfaces. Langmuir 2024. [PMID: 38507244 DOI: 10.1021/acs.langmuir.3c03557] [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] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
This study investigates the impact of atomic defects, such as oxygen vacancies and Ce3+ ions, on cerium oxide (ceria) surfaces during chemical mechanical polishing (CMP) for silica glass finishing. Using density functional theory (DFT) and reactive molecular dynamics simulations, the interaction of orthosilicic molecules and silica glass with dry and wet ceria surfaces is explored. Defects alter the surface reactivity, leading to the dissociation of orthosilicic acid on oxygen vacancies, forming a strong Si-O-Ce bond. Hydroxylated surfaces exhibit easier oxygen vacancy formation and thermodynamically favored substitution of hydroxyl groups with orthosilicic acid. A new ReaxFF library for silica/ceria interfaces with defects is validated using DFT outcomes. Reactive MD simulations demonstrate that ceria surfaces with 30% Ce3+ ions on (111) planes exhibit higher polishing efficiency, attributed to increased Si-O-Ce bond formation. The simultaneous presence of oxygen vacancies and various acidic and basic sites on ceria surfaces enhances the polishing efficiency, involving acid-base reactions with silica. Defective surfaces show superior efficiency by removing silicate chains, contrasting with nondefective surfaces removing isolated orthosilicate units. This study provides insights into optimizing CMP processes for high-precision glass industry surface finishing.
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Affiliation(s)
- Mirko Di Biase
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy
| | - Luca Brugnoli
- Chimie ParisTech, PSL Research University, CNRS, Institut de Recherche de Chimie Paris, 75005 Paris, France
| | - Katsuaki Miyatani
- Innovative Technology Laboratories, AGC Inc., Yokohama, Kanagawa 230-0045, Japan
| | - Masatoshi Akaji
- Procurement & Logistics Division, AGC Inc., Yokohama, Kanagawa 230-0045, Japan
| | - Takumi Yoshida
- Innovative Technology Laboratories, AGC Inc., Yokohama, Kanagawa 230-0045, Japan
| | - Shingo Urata
- Innovative Technology Laboratories, AGC Inc., Yokohama, Kanagawa 230-0045, Japan
| | - Alfonso Pedone
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy
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52231
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Xu B, Grady BP. Further Exploration of Heat of Immersion as a Method to Quantify Wettability for Particulates: Effect of Temperature. Langmuir 2024. [PMID: 38507260 DOI: 10.1021/acs.langmuir.3c01782] [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] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
A previous paper [Weston et al. Ind. Eng. Chem. Res. 2015, 54, 4274-4284] by our group concluded that to distinguish between the wettability of different particles, heat of immersion is the best method, as opposed to the Washburn or sessile drop method. In this paper, heats of immersion of three different particles with three different wettabilities are measured at different temperatures to examine one critical assumption concerning the temperature dependence of the heat of immersion. In addition, surfactants are added to the water, and the effect of surfactant concentration on the heat of immersion is measured. One particularly noteworthy aspect of the current study is that some measurements were made at temperatures greater than 100 °C and hence pressures higher than atmospheric pressure with no more difficulty than measurements made at atmospheric pressure. The previous paper showed that, for certain particles, the relationship used by us and others between the heat of immersion and contact angle gave impossible values for certain surfaces. In this paper, the derivation of that expression is reexamined, and certain assumptions are highlighted. Because of issues with the assumptions, we agree with the conclusion from our previous paper that using the heat of immersion as a qualitative measure of wetting is appropriate. However, without measurement of the values of the liquid-solid interfacial energy with temperature as well as the gas-solid interfacial energy with temperature, conversion to the contact angle directly is not appropriate. However, for the same surface, using this approach to quantify the contact angle as a function of temperature is likely appropriate if the contact angle is measured using some other method at one temperature, at least over the limited temperature range (up to 150 °C) explored in this study.
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Affiliation(s)
- Boshen Xu
- School of Chemical, Biological and Materials Engineering, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - B P Grady
- School of Chemical, Biological and Materials Engineering, University of Oklahoma, Norman, Oklahoma 73019, United States
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52232
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Makio T, Zhang K, Love N, Mast FD, Liu X, Elaish M, Hobman T, Aitchison JD, Fontoura BMA, Wozniak RW. SARS-CoV-2 Orf6 is positioned in the nuclear pore complex by Rae1 to control nucleo-cytoplasmic transport. Mol Biol Cell 2024:mbcE23100386. [PMID: 38507240 DOI: 10.1091/mbc.e23-10-0386] [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: 03/22/2024] Open
Abstract
The Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) accessory protein Orf6 works as an interferon antagonist, in part, by inhibiting the nuclear import activated p-STAT1, an activator of interferon-stimulated genes, and the export of the poly(A) RNA. Insight into the transport regulatory function of Orf6 has come from the observation that Orf6 binds to the nuclear pore complex (NPC) components Rae1 and Nup98. To gain further insight into the mechanism of Orf6-mediated transport inhibition, we examined the role of Rae1 and Nup98. We show that Rae1 alone is not necessary to support p-STAT1 import or nuclear export of poly(A) RNA. Moreover, the loss of Rae1 suppresses the transport inhibitory activity of Orf6. We propose that the Rae1/Nup98 complex strategically positions Orf6 within the NPC where it alters FG-Nup interactions and their ability to support nuclear transport. In addition, we show that Rae1 is required for normal viral protein production during SARS-CoV-2 infection presumably through its role in supporting Orf6 function.
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Affiliation(s)
- Tadashi Makio
- Department of Cell Biology, University of Alberta, Edmonton, AB, Canada
| | - Ke Zhang
- Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai, China
| | - Nicole Love
- Department of Cell Biology, University of Alberta, Edmonton, AB, Canada
| | - Fred D Mast
- Center for Global Infectious Disease Research, Seattle Children's Research Institute, Seattle, WA, USA
| | - Xue Liu
- Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai, China
| | - Mohamed Elaish
- Department of Cell Biology, University of Alberta, Edmonton, AB, Canada
| | - Tom Hobman
- Department of Cell Biology, University of Alberta, Edmonton, AB, Canada
| | - John D Aitchison
- Center for Global Infectious Disease Research, Seattle Children's Research Institute, Seattle, WA, USA
- Department of Pediatrics, University of Washington, Seattle, WA, USA
- Department of Biochemistry, University of Washington, Seattle, WA, USA
| | - Beatriz M A Fontoura
- Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Richard W Wozniak
- Department of Cell Biology, University of Alberta, Edmonton, AB, Canada
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52233
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Hollingsworth BD, Cho C, Vella M, Roh H, Sass J, Lloyd AL, Brown ZS. Economic Optimization of Wolbachia-infected Aedes aegypti release to prevent dengue. Pest Manag Sci 2024. [PMID: 38507220 DOI: 10.1002/ps.8086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 02/29/2024] [Accepted: 03/15/2024] [Indexed: 03/22/2024]
Abstract
BACKGROUND Dengue virus, primarily transmitted by the Aedes aegypti mosquito, is a major public health concern affecting approximately 3.83 billion people worldwide. Recent releases of Wolbachia-transinfected Ae. aegypti in several cities worldwide have shown that it can reduce dengue transmission. However, these releases are costly, and, to date, no framework has been proposed for determining economically optimal release strategies that account for both costs associated with disease risk and releases. RESULTS We present a flexible stochastic dynamic programming framework for determining optimal release schedules for Wolbachia-transinfected mosquitoes that balances the cost of dengue infection with the costs of rearing and releasing transinfected mosquitoes. Using an ordinary differential equation model of Wolbachia and dengue in a hypothetical city loosely describing areas at risk of new dengue epidemics, we determined that an all-or-nothing release strategy that quickly brings Wolbachia to fixation is often the optimal solution. Based on this, we examined the optimal facility size, finding that it was less than unitary elastic with respect to the mosquito population size, with a 100% increase in population size resulting in a 50-67% increase in optimal facility size. Further, we found that these results are robust to mosquito life-history parameters and are mostly determined by the mosquito population size and the fitness costs associated with Wolbachia. CONCLUSIONS These results reinforce that Wolbachia-transinfected mosquitoes can reduce the cost of dengue epidemics. Further, they emphasize the importance of determining the size of the target population and fitness costs associated with Wolbachia before releases occur. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Brandon D Hollingsworth
- Department of Entomology, Cornell University, USA
- Biomathematics Graduate Program and Department of Mathematics, North Carolina State University, USA
| | - Chanheung Cho
- Department of Agricultural and Resource Economics, North Carolina State University, USA
| | - Michael Vella
- Biomathematics Graduate Program and Department of Mathematics, North Carolina State University, USA
| | - Hyeongyul Roh
- Department of Agricultural and Resource Economics, North Carolina State University, USA
| | - Julian Sass
- Biomathematics Graduate Program and Department of Mathematics, North Carolina State University, USA
| | - Alun L Lloyd
- Biomathematics Graduate Program and Department of Mathematics, North Carolina State University, USA
| | - Zachary S Brown
- Department of Agricultural and Resource Economics, North Carolina State University, USA
- Genetic Engineering and Society Center, North Carolina State University, USA
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52234
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Cota Queiroz EJ, Nunes da Rocha I, Valentim LDA, Quaresma TJC, de Souza Filho ZA, de Oliveira SMS, de Paula Fernandes F, Macedo CG, Quaresma TC, Moraes WP. Epidemiological, clinical, and geographical characterization of Leprosy in the County of Santarém-Pará: Insights for effective control and targeted intervention. PLoS Negl Trop Dis 2024; 18:e0012063. [PMID: 38507427 DOI: 10.1371/journal.pntd.0012063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 03/11/2024] [Indexed: 03/22/2024] Open
Abstract
Leprosy is an infectious disease characterized by slow and chronic evolution, caused by Mycobacterium leprae and or Mycobacterium lepromatosis, an intracellular alcohol-acid-resistant (BAAR) bacillus. The objective of this study was to provide an epidemiological, clinical, and geographic characterization of leprosy in the city of Santarém-Pará during the period 2011-2020. A cross-sectional, descriptive, and quantitative approach was used, employing maps and tables to illustrate clinical and epidemiological variables, including: sex, age, race, area of residence, operational classification, clinical form, number of skin lesions, number of affected nerves, and health units. During the analyzed period, 581 cases of leprosy were diagnosed, resulting in the following cumulative incidence rates: male (60%); age over 15 years (94%); urban area (73%); multibacillary (74%); borderline form (46%); skin lesions greater than 5 (34%); and no nerves affected (68%). In the urban perimeter, a higher cumulative incidence of cases was observed in the central area with 133 cases. However, the health unit reporting the largest number of cases belonged to the southern area, specifically the Basic Health Unit of Nova República, with 48 cases. This study highlights the need to characterize the nuances of leprosy and its variability within the urban environment, according to different areas. Further research is essential to inform the implementation of public policies aimed at addressing the population with the highest vulnerability index, thereby reducing leprosy rates in Santarém.
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52235
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Nishida M, Mi X, Ishii Y, Kato Y, Nishimura A. Cardiac Remodeling: Novel Pathophysiological Mechanisms and Therapeutic Strategies. J Biochem 2024:mvae031. [PMID: 38507681 DOI: 10.1093/jb/mvae031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Accepted: 03/14/2024] [Indexed: 03/22/2024] Open
Abstract
Morphological and structural remodeling of the heart, including cardiac hypertrophy and fibrosis, has been considered a therapeutic target for heart failure for approximately three decades. Groundbreaking heart failure medications demonstrating reverse remodeling effects have contributed significantly to medical advancements. However, nearly 50% of heart failure patients still exhibit drug resistance, posing a challenge to the healthcare system. Recently, characteristics of heart failure resistant to ARBs and β-blockers have been defined, highlighting preserved systolic function despite impaired diastolic function, leading to the classification of heart failure with preserved ejection fraction (HFpEF). The pathogenesis and etiology of HFpEF may be related to metabolic abnormalities, as evidenced by its mimicry through endothelial dysfunction and excessive intake of high-fat diets. Our recent findings indicate a significant involvement of mitochondrial hyper-fission in the progression of heart failure. This mitochondrial pathological remodeling is associated with redox imbalance, especially hydrogen sulfide accumulation due to abnormal electron leak in myocardium. In this review, we also introduce a novel therapeutic strategy for heart failure from the current perspective of mitochondrial redox-metabolic remodeling.
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Affiliation(s)
- Motohiro Nishida
- National Institute for Physiological Sciences (NIPS), National Institutes of Natural Sciences, Okazaki 444-8787, Japan
- Exploratory Research Center on Life and Living Systems (ExCELLS), National Institutes of Natural Sciences, Okazaki 444-8787, Japan
- Department of Physiological Sciences, SOKENDAI (School of Life Science, The Graduate University for Advanced Studies), Aichi 444-8787, Japan
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Xinya Mi
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Yukina Ishii
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Yuri Kato
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Akiyuki Nishimura
- National Institute for Physiological Sciences (NIPS), National Institutes of Natural Sciences, Okazaki 444-8787, Japan
- Exploratory Research Center on Life and Living Systems (ExCELLS), National Institutes of Natural Sciences, Okazaki 444-8787, Japan
- Department of Physiological Sciences, SOKENDAI (School of Life Science, The Graduate University for Advanced Studies), Aichi 444-8787, Japan
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52236
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Erratum: Real-World Perspectives and Practices for Pneumonitis/Interstitial Lung Disease Associated With Trastuzumab Deruxtecan Use in Human Epidermal Growth Factor Receptor 2-Expressing Metastatic Breast Cancer. JCO Oncol Pract 2024;:OP2400154. [PMID: 38507668 DOI: 10.1200/OP.24.00154] [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] [Received: 02/27/2024] [Indexed: 03/22/2024] Open
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52237
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Akila D, Akinola O, Omotoso O, Ohkubo S, Adefila A, Yohanna P, Kalu NI, Oyeyemi A, Ojelade O, Waziri A, Kwaknat W, Solanke O, Emonena B, Rotimi O, Mwaikambo L, Igharo V, Ajijola L, Bose K. Improving Contraceptive Service Quality and Accessibility for Adolescents and Youth Through Proprietary Patent Medicine Vendors in Four Nigerian States. Glob Health Sci Pract 2024:GHSP-D-22-00225. [PMID: 38508767 DOI: 10.9745/ghsp-d-22-00225] [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] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 02/21/2024] [Indexed: 03/22/2024]
Abstract
INTRODUCTION In Nigeria, health care services and commodities have increasingly been accessed through private sector entities, including retail pharmacies and drug shops (also called proprietary patent medicine vendors [PPMVs]). However, PPMVs cannot provide long-acting or permanent methods, and concerns have been raised about their quality of services and their need to better comply with government regulations. This article describes how The Challenge Initiative's (TCI) family planning program supported 4 state governments in Nigeria to develop a model to strengthen public-private partnerships between PPMVs and primary health centers (PHCs) to leverage PPMVs to provide adolescents and youth with high-quality contraceptive information, services, and referrals to PHCs. PROGRAM DESCRIPTION The intervention implemented a hub-spoke model by strengthening the linkages between neighboring PPMVs and large PHCs for delivering contraceptive services to adolescents and youth. The steps in the implementation process included: (1) introducing the intervention to state governments, (2) selecting PPMVs as spokes and high-volume PHCs as hubs, (3) conducting whole-site orientations jointly with PPMV and PHC staff, (4) strengthening referral links between PPMVs and PHCs, (5) implementing supportive supervision and coaching, and (6) strengthening client data management. TCI worked with the state and local ministry of health to improve PPMV operators' knowledge, attitudes, and skills to deliver adolescent- and youth-friendly services. LESSONS LEARNED AND RECOMMENDATIONS Implementing the PPMV intervention with state governments and PHCs strengthened the public-private partnership. A functional referral system in Plateau State demonstrated significant success, enabling increased contraceptive choice and adherence to regulations for adolescents and youth. We recommend that the government strengthen the working relationship between PPMVs and PHCs, incorporate PPMVs into the routine supportive supervision of the state health system, and incorporate a referral linkage with PHCs into the design and implementation of PPMV programs.
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Affiliation(s)
- Dorcas Akila
- The Challenge Initiative, Nigeria Hub, Johns Hopkins Center for Communication Programs, Abuja, Nigeria.
| | - Oluwasegun Akinola
- The Challenge Initiative, Nigeria Hub, Johns Hopkins Center for Communication Programs, Abuja, Nigeria
| | - Olukunle Omotoso
- The Challenge Initiative, Nigeria Hub, Johns Hopkins Center for Communication Programs, Abuja, Nigeria
| | - Saori Ohkubo
- The Challenge Initiative, Johns Hopkins Center for Communication Programs, Baltimore, MD, USA
| | - Adewale Adefila
- The Challenge Initiative, Nigeria Hub, Johns Hopkins Center for Communication Programs, Abuja, Nigeria
| | - Philemon Yohanna
- The Challenge Initiative, Nigeria Hub, Johns Hopkins Center for Communication Programs, Abuja, Nigeria
| | - Nwanne Ikodiya Kalu
- The Challenge Initiative, Nigeria Hub, Johns Hopkins Center for Communication Programs, Abuja, Nigeria
| | - Adebusola Oyeyemi
- The Challenge Initiative, Nigeria Hub, Johns Hopkins Center for Communication Programs, Abuja, Nigeria
| | - Olubunmi Ojelade
- The Challenge Initiative, Nigeria Hub, Johns Hopkins Center for Communication Programs, Abuja, Nigeria
| | - Aisha Waziri
- The Challenge Initiative, Nigeria Hub, Johns Hopkins Center for Communication Programs, Abuja, Nigeria
| | - Winifred Kwaknat
- The Challenge Initiative, Nigeria Hub, Johns Hopkins Center for Communication Programs, Abuja, Nigeria
| | - Olusola Solanke
- The Challenge Initiative, Nigeria Hub, Johns Hopkins Center for Communication Programs, Abuja, Nigeria
| | - Bernard Emonena
- The Challenge Initiative, Nigeria Hub, Johns Hopkins Center for Communication Programs, Abuja, Nigeria
| | - Oluwafemi Rotimi
- The Challenge Initiative, Nigeria Hub, Johns Hopkins Center for Communication Programs, Abuja, Nigeria
| | - Lisa Mwaikambo
- The Challenge Initiative, Johns Hopkins Center for Communication Programs, Baltimore, MD, USA
| | - Victor Igharo
- The Challenge Initiative, Nigeria Hub, Johns Hopkins Center for Communication Programs, Abuja, Nigeria
| | - Lekan Ajijola
- The Challenge Initiative, Nigeria Hub, Johns Hopkins Center for Communication Programs, Abuja, Nigeria
| | - Krishna Bose
- The Challenge Initiative, Bill & Melinda Gates Institute for Population and Reproductive Health, Baltimore, MD, USA
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52238
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Castrejón-Pérez RC, Borges-Yáñez SA, Ramírez-Aldana R, Nasu I, Saito Y. Complete dentures associated with frailty among edentulous older Japanese people: A prospective analysis. Community Dent Oral Epidemiol 2024. [PMID: 38509032 DOI: 10.1111/cdoe.12956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 02/08/2024] [Accepted: 02/26/2024] [Indexed: 03/22/2024]
Abstract
OBJECTIVE This study aimed to explore the cross-sectional and prospective associations between self-reported functionality of complete dentures (FCD), satisfaction with complete dentures (SCD) and the ability to chew hard food (ACHF) on the one hand and the frailty index (FI) on the other hand among edentulous community-dwelling older Japanese people. METHODS The study examined 770 edentulous participants of the Nihon University Japanese Longitudinal Study of Aging. The self-reported FCD, SCD and ability to chew six groups of food (from hardest to softest) with complete dentures were the independent variables at the baseline. The FI was computed including 40 deficits as the dependent variable at the baseline and 4 years later. Cross-sectional and prospective generalized linear regression models were fitted controlling for age, gender, marital status, education, working status and area of residence. RESULTS The use of non-functional complete dentures and dissatisfaction with complete dentures were both associated with a higher FI cross-sectionally (3.9% [95% CI 2.2-5.6] and 3.2% [95% CI 1.5-4.9], respectively) and prospectively (3.9% [95% CI 2.0-6.0] and 3.3% [95% CI 1.3-5.3], respectively). Regarding the ability to chew, a higher FI at baseline was observed among those able to chew food of Group 2 (1.9%, [95% CI 0.1-3.7]) and Groups 4-6 (1.9%, [95% CI 0.1-3.7]), and a progressive increment in the FI, as the participants reported being able to chew softer groups of food at the follow-up (Group 2: 2.2% [95% CI 0.05-4.3]; Group 3: 3.6% [95% CI 1.2-6.0]; and Groups 4-6: 3.4 [95% CI 0.7-6.1]). CONCLUSION Self-reported use of non-functional complete dentures, dissatisfaction with dentures and a reduced ACHF with complete dentures were associated with a higher FI both cross-sectionally and prospectively.
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Affiliation(s)
- Roberto C Castrejón-Pérez
- Instituto Nacional de Geriatría, National Institutes of Health, Ministry of Health, Mexico City, Mexico
| | - S Aída Borges-Yáñez
- Division of Postgraduate and Research Studies, School of Dentistry, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Ricardo Ramírez-Aldana
- Instituto Nacional de Geriatría, National Institutes of Health, Ministry of Health, Mexico City, Mexico
- Escuela Superior de Ingeniería y Tecnología, Universidad Internacional de la Rioja, Logroño, Spain
- Departamento de Matemáticas, Facultad de Ciencias, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Ikuo Nasu
- Escuela Superior de Ingeniería y Tecnología, Universidad Internacional de la Rioja, Logroño, Spain
| | - Yasuhiko Saito
- School of Dentistry at Matsudo, Nihon University, Chiba, Japan
- College of Economics, Nihon University, Tokyo, Japan
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52239
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Affinity maturation of CRISPR-engineered B cell receptors in vivo. Nat Biomed Eng 2024. [PMID: 38509393 DOI: 10.1038/s41551-024-01184-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
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52240
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Honda S, Misawa N, Sato Y, Oikawa D, Tokunaga F. The hypothetical molecular mechanism of the ethnic variations in the manifestation of age-related macular degeneration; focuses on the functions of the most significant susceptibility genes. Graefes Arch Clin Exp Ophthalmol 2024:10.1007/s00417-024-06442-9. [PMID: 38507046 DOI: 10.1007/s00417-024-06442-9] [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: 08/26/2023] [Revised: 02/27/2024] [Accepted: 03/08/2024] [Indexed: 03/22/2024] Open
Abstract
Age-related macular degeneration (AMD) is the leading sight-threatening disease in developed countries. On the other hand, recent studies indicated an ethnic variation in the phenotype of AMD. For example, several reports demonstrated that the incidence of drusen in AMD patients is less in Asians compared to Caucasians though the reason has not been clarified yet. In the last decades, several genome association studies have disclosed many susceptible genes of AMD and revealed that the association strength of some genes was different among races and AMD phenotypes. In this review article, the essential findings of the clinical studies and genome association studies for the most significant genes CFH and ARMS2/HTRA1 in AMD of different races are summarized, and theoretical hypotheses about the molecular mechanisms underlying the ethnic variation in the AMD manifestation mainly focused on those genes between Caucasians and Asians are discussed.
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Affiliation(s)
- Shigeru Honda
- Department of Ophthalmology and Visual Sciences, Osaka Metropolitan University Graduate School of Medicine, 1-4-3 Asahi-Machi, Abeno-Ku, Osaka, Japan.
| | - Norihiko Misawa
- Department of Ophthalmology and Visual Sciences, Osaka Metropolitan University Graduate School of Medicine, 1-4-3 Asahi-Machi, Abeno-Ku, Osaka, Japan
| | - Yusuke Sato
- Center for Research On Green Sustainable Chemistry, Graduate School of Engineering, Tottori University, Tottori, Japan
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, Tottori, Japan
| | - Daisuke Oikawa
- Department of Medical Biochemistry, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Fuminori Tokunaga
- Department of Medical Biochemistry, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
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52241
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Wusiman S, Liu Y, Li H, Deng Y, Qu X, Tuerxun H, Liu L. Highly Expressed Z-DNA Binding Protein 1 in Esophageal Cancer Promotes Tumor Growth. Dig Dis Sci 2024:10.1007/s10620-024-08375-z. [PMID: 38507125 DOI: 10.1007/s10620-024-08375-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 02/26/2024] [Indexed: 03/22/2024]
Abstract
BACKGROUND Esophageal cancer (ESCA) is a common malignant tumor of the digestive tract, and its poor prognosis is mainly attributed to the occurrence of invasion and metastasis. Z-DNA binding protein 1 (ZBP1), as a mRNA regulatory factor, plays an important role in the occurrence and development of various tumors. However, the role of ZBP1 in ESCA is not yet understood. AIMS This study aims to explore the expression of ZBP1 in ESCA and its role in the development of ESCA. METHODS Using bioinformatics analysis and immunohistochemistry staining, we detected the expression of ZBP1 in ESCA and normal tissues. The potential mechanism of ZBP1 in ESCA was analyzed from the aspects of genetic mutations, protein interaction networks, and pathway enrichment. We performed functional experiments in vitro to elucidate the effect of ZBP1 on ESCA cells. RESULTS ZBP1 was found to be significantly upregulated in ESCA compared to adjacent noncancerous tissues, and its expression is closely related to gender, age, and lymph node metastasis. In ESCA, the genetic variation rate of ZBP1 is 8%, and its expression is positively correlated with immune cell infiltration. The ZBP1 co-expressed gene is mainly involved in processes such as lymph node proliferation and intercellular adhesion. In vitro experiments have confirmed that downregulation of ZBP1 significantly inhibited the proliferation, migration, and invasion of ESCA cells. CONCLUSION This research proves that downregulation of ZBP1 can inhibit the progression of ESCA. This finding indicates that ZBP1 may be a novel biomarker to improve the diagnosis and treatment of ESCA.
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Affiliation(s)
- Shabahaiti Wusiman
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xinjiang Medical University, Xinjiang Key Laboratory of Molecular Biology for Endemic Diseases, Xinjiang Medical University, Urumqi, Xinjiang Uygur Autonomous Region, China
| | - Yining Liu
- Laboratory Department, The Third People's Hospital of Xinjiang, Urumqi, Xinjiang Uygur Autonomous Region, China
| | - Hui Li
- Central Laboratory of Xinjiang Medical University, Urumqi, Xinjiang Uygur Autonomous Region, China
| | - Yuhan Deng
- Department of Thoracic Surgery, Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, Xinjiang Uygur Autonomous Region, China
| | - Ximing Qu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xinjiang Medical University, Xinjiang Key Laboratory of Molecular Biology for Endemic Diseases, Xinjiang Medical University, Urumqi, Xinjiang Uygur Autonomous Region, China
| | - Hainisayimu Tuerxun
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xinjiang Medical University, Xinjiang Key Laboratory of Molecular Biology for Endemic Diseases, Xinjiang Medical University, Urumqi, Xinjiang Uygur Autonomous Region, China
| | - Ling Liu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xinjiang Medical University, Xinjiang Key Laboratory of Molecular Biology for Endemic Diseases, Xinjiang Medical University, Urumqi, Xinjiang Uygur Autonomous Region, China.
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52242
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Kantzanou M, Kostares E, Kostare G, Boufidou F, Tzanai A, Kostares M, Tsakris A. Prevalence of ocular toxoplasmosis among people living with HIV: a systematic review and meta-analysis. Future Microbiol 2024. [PMID: 38507297 DOI: 10.2217/fmb-2023-0215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024] Open
Abstract
Aim: To determine the prevalence of ocular toxoplasmosis among people living with HIV through a systematic review and meta-analysis. Materials & methods: A literature search was conducted, estimating pooled prevalence and performing quality assessment, outlier, influential and meta-regression analyses. Results: Twenty-nine studies were included in the analysis, revealing that the rate of ocular toxoplasmosis among people living with HIV was 0.37% (95% CI: 0.2-0.6). Substantial heterogeneity was observed among the studies. Despite analyzing continuous variables, including year of publication, proportion of males, mean age and proportion of patients receiving antiretroviral therapy, no statistically significant associations were found. Conclusion: This study provides an overview of the prevalence of ocular toxoplasmosis in people living with HIV, emphasizing the need for further research to uncover factors contributing to its development.
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Affiliation(s)
- Maria Kantzanou
- Department of Microbiology, Medical School, National & Kapodistrian University of Athens, Athens, 11527, Greece
| | - Evangelos Kostares
- Department of Microbiology, Medical School, National & Kapodistrian University of Athens, Athens, 11527, Greece
| | - Georgia Kostare
- Department of Microbiology, Medical School, National & Kapodistrian University of Athens, Athens, 11527, Greece
| | - Fotini Boufidou
- Neurochemistry & Biological Markers Unit, 1st Department of Neurology, Eginition Hospital, Medical School, National & Kapodistrian University of Athens, Athens, 11528, Greece
| | - Antzela Tzanai
- Department of Microbiology, Medical School, National & Kapodistrian University of Athens, Athens, 11527, Greece
| | - Michael Kostares
- Department of Microbiology, Medical School, National & Kapodistrian University of Athens, Athens, 11527, Greece
| | - Athanasios Tsakris
- Department of Microbiology, Medical School, National & Kapodistrian University of Athens, Athens, 11527, Greece
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52243
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Dhivya E, Kesavan R, Pradeep NP. Impact of ABCB1 genetic polymorphism on carbamazepine dose requirement among Southern Indian persons with epilepsy. Drug Metab Pers Ther 2024; 0:dmdi-2023-0054. [PMID: 38507296 DOI: 10.1515/dmpt-2023-0054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 02/06/2024] [Indexed: 03/22/2024]
Abstract
OBJECTIVES Carbamazepine (CBZ) is one of the oldest, yet first line drugs for treating epilepsy. However, there is a large inter-individual difference in requirement of maintenance dose and one third of persons treated with antiepileptic drugs (AEDs) exhibit drug resistance to therapy. One of the proposed mechanisms for the drug resistance was increased expression of efflux transporter P-glycoprotein. The pharmacogenetic studies of drug transporters (ABCB1) done in combination therapies of AEDs were inconclusive. Hence, we have attempted to study the impact of ABCB1 3435C>T genetic polymorphism and CBZ monotherapy in persons with epilepsy (PWE) from South India, which is a genetically distinct population. With this background, this study was aimed to determine the dose of CBZ in ABCB1 3435C>T genotypes and to determine the distribution of ABCB1 3435C>T genotypes (which codes P-glycoprotein) between responders and non-responders to CBZ therapy. METHODS A cross sectional study was conducted in 200 persons with epilepsy, who were categorised as responders and non-responders according to ILAE (international league against epilepsy) criteria. Eligible participants were enrolled from the epilepsy clinic of the neurology department and five ml of blood was collected. DNA extraction and genotyping were done by phenol-chloroform method and real time polymerase chain reaction (RT-PCR), respectively. RESULTS The mean maintenance dose of carbamazepine was statistically significant among different genotypes (p<0.05) of ABCB1 3435C>T (526 vs. 637 mg/day in CC vs. TT genotype). There was no significant association between ABCB1 3435C>T polymorphism (p=0.827) and CBZ resistance in PWE. Duration of disease and age of onset were found to be significant in predicting the response to CBZ therapy. CONCLUSIONS We report that ABCB1 3435C>T polymorphism is significantly associated with an increase in dose requirement of CBZ in persons with epilepsy from South India.
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Affiliation(s)
- Elango Dhivya
- Department of Pharmacology, 29988 Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER) , Puducherry, India
| | - Ramasamy Kesavan
- Department of Pharmacology, 29988 Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER) , Puducherry, India
| | - Nair P Pradeep
- Department of Neurology, 29988 Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER) , Puducherry, India
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52244
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Rataj AC, Porter KE, Dugan E. Changing attitudes about LGBTQ+ older adults: the Gen Silent Survey Project. Gerontol Geriatr Educ 2024:1-13. [PMID: 38507333 DOI: 10.1080/02701960.2024.2332700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
OBJECTIVES Lesbian, gay, bisexual, transgender, queer, and more (LGBTQ+) older adults may experience challenges accessing services due to stigma. Aging service providers seeking to create an inclusive culture need training tools. This study examined if a film (Gen Silent) could increase provider's knowledge of and empathy for LGBTQ+ older adults. METHODS A pretest - posttest survey was administered at film screenings in New Hampshire to assess knowledge and attitudes of participants (N = 108). Data were analyzed descriptively, Wilcoxon signed-rank test was used to compare matched samples, and linear and logistic regression models compared group differences. RESULTS Scores on eight of the nine measures improved after watching Gen Silent. Most participants (83%) indicated their thoughts and views had changed after watching the film. Statistically significant between group differences are discussed. CONCLUSIONS The documentary Gen Silent was found to be an adequate, introductory training tool about LGBTQ+ aging.
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Affiliation(s)
- Alison C Rataj
- Department of Gerontology, University of Massachusetts Boston, Boston, USA
| | - Kristen E Porter
- Department of Gerontology, University of Massachusetts Boston, Boston, USA
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52245
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Correction to: "Approach to the Patient With Type 2 Diabetes Requiring Add-On Medication". J Clin Endocrinol Metab 2024:dgae160. [PMID: 38507300 DOI: 10.1210/clinem/dgae160] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
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52246
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Álvarez-Vázquez A, San-Segundo L, Cerveró-García P, Flores-Hernández R, Ollauri-Ibáñez C, Segura-Collar B, Hubert CG, Morrison G, Pollard SM, Lathia JD, Sánchez-Gómez P, Tabernero A. EGFR amplification and EGFRvIII predict and participate in TAT-Cx43266-283 antitumor response in preclinical glioblastoma models. Neuro Oncol 2024:noae060. [PMID: 38507464 DOI: 10.1093/neuonc/noae060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Indexed: 03/22/2024] Open
Abstract
BACKGROUND Glioblastoma (GBM) commonly displays epidermal growth factor receptor (EGFR) alterations (mainly amplification and EGFRvIII) and TAT-Cx43266-283 is a Src-inhibitory peptide with antitumor properties in preclinical GBM models. Given the link between EGFR and Src, the aim of this study was to explore the role of EGFR in the antitumor effects of TAT-Cx43266-283. METHODS The effect of TAT-Cx43266-283, temozolomide (TMZ) and erlotinib (EGFR inhibitor) was studied in patient-derived GBM stem cells (GSCs) and murine neural stem cells (NSCs) with and without EGFR alterations, in vitro and in vivo. EGFR alterations were analyzed by Western blot (WB) and Fluorescence In Situ Hybridization (FISH) in these cells, and compared with Src activity and survival in GBM samples from TCGA. RESULTS The effect of TAT-Cx43266-283 correlated with EGFR alterations in a set of patient-derived GSCs and was stronger than that exerted by TMZ and erlotinib. In fact, TAT-Cx43266-283 only affected NSCs with EGFR alterations, but not healthy NSCs. EGFR alterations correlated with Src activity and poor survival in GBM patients. Finally, tumors generated from NSCs with EGFR alterations, showed a decrease in growth, invasiveness and vascularization after treatment with TAT-Cx43266-283, which enhanced the survival of immunocompetent mice. CONCLUSION Clinically relevant EGFR alterations are predictors of TAT-Cx43266-283 response and part of its mechanism of action, even in TMZ- and erlotinib-resistant GSCs. TAT-Cx43266-283 targets NSCs with GBM-driver mutations, including EGFR alterations, in an immunocompetent GBM model in vivo, suggesting a promising effect on GBM recurrence. Together, this study represents an important step towards the clinical application of TAT-Cx43266-283.
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Affiliation(s)
- Andrea Álvarez-Vázquez
- Neuroscience Institute of Castilla y León (INCyL), Department of Biochemistry and Molecular Biology, Institute for Biomedical Research of Salamanca (IBSAL), University of Salamanca, Salamanca, Spain
| | - Laura San-Segundo
- Neuroscience Institute of Castilla y León (INCyL), Department of Biochemistry and Molecular Biology, Institute for Biomedical Research of Salamanca (IBSAL), University of Salamanca, Salamanca, Spain
- Centre for Cancer Research-IBMCC (CSIC), IBSAL, Salamanca, Spain
| | - Pilar Cerveró-García
- Neuroscience Institute of Castilla y León (INCyL), Department of Biochemistry and Molecular Biology, Institute for Biomedical Research of Salamanca (IBSAL), University of Salamanca, Salamanca, Spain
| | - Raquel Flores-Hernández
- Neuroscience Institute of Castilla y León (INCyL), Department of Biochemistry and Molecular Biology, Institute for Biomedical Research of Salamanca (IBSAL), University of Salamanca, Salamanca, Spain
| | - Claudia Ollauri-Ibáñez
- Neuroscience Institute of Castilla y León (INCyL), Department of Biochemistry and Molecular Biology, Institute for Biomedical Research of Salamanca (IBSAL), University of Salamanca, Salamanca, Spain
| | - Berta Segura-Collar
- Instituto de investigaciones Biomédicas I+12 (Imas12), Hospital 12 de Octubre, Madrid, Spain
| | - C G Hubert
- Department of Biochemistry, Case Western Reserve University, Cleveland, OH, USA
- Case Comprehensive Cancer Center, Cleveland, OH, USA
| | - Gillian Morrison
- Centre for Regenerative Medicine, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK
| | - Steven M Pollard
- Centre for Regenerative Medicine, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK
| | - Justin D Lathia
- Department of Cardiovascular & Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
- Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, OH, USA
| | - Pilar Sánchez-Gómez
- Neuro-Oncology Unit, Instituto de Salud Carlos III (ISCIII-UFIEC), Madrid, Spain
| | - Arantxa Tabernero
- Neuroscience Institute of Castilla y León (INCyL), Department of Biochemistry and Molecular Biology, Institute for Biomedical Research of Salamanca (IBSAL), University of Salamanca, Salamanca, Spain
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52247
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Zhou X, Wang J, Zhou S. Poria cocos polysaccharides improve alcoholic liver disease by interfering with ferroptosis through NRF2 regulation. Aging (Albany NY) 2024; 16:205693. [PMID: 38507458 DOI: 10.18632/aging.205693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 03/01/2024] [Indexed: 03/22/2024]
Abstract
The active ingredient in Poria cocos, a parasitic plant belonging to the family Polyporaceae, is Poria cocos polysaccharide (PCP). PCP exhibits liver protection and anti-inflammatory effects, although its effect on alcoholic liver disease (ALD) remains unstudied. This study investigated the mechanism of PCP in improving ALD by regulating the Nrf2 signaling pathway. After daily intragastric administration of high-grade liquor for 4 hours, each drug group received PCPs or the ferroptosis inhibitor ferrostatin-1. The Nrf2 inhibitor ML385 (100 mg/kg/day) group was intraperitoneally injected, after which PCP (100 mg/kg/day) was administered by gavage. Samples were collected after 6 weeks for liver function and blood lipid analysis using an automatic biochemical analyzer. In the alcoholic liver injury cell model established with 150 mM alcohol, the drug group was pretreated with PCP, Fer-1, and ML385, and subsequent results were analyzed. The results revealed that PCP intervention significantly reduced liver function and blood lipid levels in alcohol-fed rats, along with decreased lipid deposition. PCP notably enhanced Nrf2 signaling expression, regulated oxidative stress levels, inhibited NF-κβ, and its downstream inflammatory signaling pathways. Furthermore, PCP upregulated FTH1 protein expression and reduced intracellular Fe2+, suggesting an improvement in ferroptosis. In vitro studies yielded similar results, indicating that PCP can reduce intracellular ferroptosis by regulating oxidative stress and improve alcoholic liver injury by inhibiting the production of inflammatory factors.
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Affiliation(s)
- Xiangyu Zhou
- Guizhou University of Traditional Chinese Medicine, Guiyang 550002, China
- The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550001, China
| | - Jincheng Wang
- Guizhou University of Traditional Chinese Medicine, Guiyang 550002, China
- The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550001, China
| | - Sufang Zhou
- The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550001, China
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52248
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Krimsky E, Collins SH. Elastic energy-recycling actuators for efficient robots. Sci Robot 2024; 9:eadj7246. [PMID: 38507474 DOI: 10.1126/scirobotics.adj7246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 02/20/2024] [Indexed: 03/22/2024]
Abstract
Electric motors are widely used in robots but waste energy in many applications. We introduce an elastic energy-recycling actuator that maintains the versatility of motors while improving energy efficiency in cyclic tasks. The actuator comprises a motor in parallel with an array of springs that can be individually engaged and disengaged, while retaining stored energy, by pairs of low-power electroadhesive clutches. We developed a prototype actuator and tested it in five repetitive tasks with features common in robotic applications but difficult to perform efficiently. The actuator reduced power consumption by at least 50% in all cases and by 97% in the best case. Elastic energy recovery, controlled by low-power clutches, can improve the efficiency of mobile robots, assistive devices, and other engineered systems.
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Affiliation(s)
- Erez Krimsky
- Department of Mechanical Engineering, Stanford University, Stanford, CA 94305, USA
| | - Steven H Collins
- Department of Mechanical Engineering, Stanford University, Stanford, CA 94305, USA
- Department of Bioengineering, Stanford University, Stanford, CA 94305, USA
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52249
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Green SA. In Infected Nonunited Long-Bone Fractures of Lower Limbs, Bone Transport Through Induced Membrane Reduced Time to Docking Site Union and Risk of Nonunion and Infection Recurrence Versus Conventional Bone Transport. J Bone Joint Surg Am 2024:00004623-990000000-01045. [PMID: 38507465 DOI: 10.2106/jbjs.24.00171] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
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52250
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Frazier AH, Topjian AA, Reeder RW, Morgan RW, Fink EL, Franzon D, Graham K, Harding ML, Mourani PM, Nadkarni VM, Wolfe HA, Ahmed T, Bell MJ, Burns C, Carcillo JA, Carpenter TC, Diddle JW, Federman M, Friess SH, Hall M, Hehir DA, Horvat CM, Huard LL, Maa T, Meert KL, Naim MY, Notterman D, Pollack MM, Schneiter C, Sharron MP, Srivastava N, Viteri S, Wessel D, Yates AR, Sutton RM, Berg RA. Association of Pediatric Post-Cardiac Arrest Ventilation and Oxygenation with Survival Outcomes. Ann Am Thorac Soc 2024. [PMID: 38507645 DOI: 10.1513/annalsats.202311-948oc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 03/18/2024] [Indexed: 03/22/2024] Open
Abstract
RATIONALE Adult and pediatric studies provide conflicting data whether post-cardiac arrest hypoxemia, hyperoxemia, hypercapnia and/or hypocapnia are associated with worse outcomes. OBJECTIVES Determine if post-arrest hypoxemia or post-arrest hyperoxemia are associated with lower rates of survival to hospital discharge compared to post-arrest normoxemia, and if post-arrest hypocapnia or hypercapnia are associated with lower rates of survival compared to post-arrest normocapnia. METHODS Embedded prospective observational study during a multi-center interventional cardiopulmonary resuscitation trial from 2016-2021. Patients ≤18 years and ≥37 weeks corrected gestational age who received chest compressions for cardiac arrest in one of 18 ICUs were included. Exposures during the first 24 hours post-arrest were hypoxemia, hyperoxemia, or normoxemia defined as lowest PaO2 <60mmHg, highest PaO2 ≥200mmHg, or every PaO2 60-199mmHg, respectively, and hypocapnia, hypercapnia, or normocapnia defined as lowest PaCO2 <30mmHg, highest PaCO2 ≥50mmHg, or every PaCO2 30-49mmHg, respectively. Associations of oxygenation and carbon dioxide group with survival to hospital discharge were assessed using Poisson regression with robust error estimates. MEASUREMENTS AND MAIN RESULTS The hypoxemia group was less likely to survive to hospital discharge compared with the normoxemia group (aRR 0.71, 0.58-0.87), whereas the hyperoxemia group survival did not differ from the normoxemia group (aRR 1.0, 0.87-1.15). The hypercapnia group was less likely to survive to hospital discharge compared with the normocapnia group (aRR 0.74, 0.64-0.84), whereas the hypocapnia group survival did not differ from the normocapnia group (aRR 0.91, 0.74-1.12). CONCLUSIONS Post-arrest hypoxemia and hypercapnia were each associated with lower rates of survival to hospital discharge.
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Affiliation(s)
- Aisha H Frazier
- Nemours Children's Hospital Delaware, 25401, Cardiac Center, Wilmington, Delaware, United States
- Thomas Jefferson University Sidney Kimmel Medical College, 12313, Pediatrics, Philadelphia, Pennsylvania, United States
| | - Alexis A Topjian
- University of Pennsylvania Perelman School of Medicine, 14640, Philadelphia, Pennsylvania, United States
- The Children's Hospital of Philadelphia, 6567, Department of Anesthesiology and Critical Care Medicine, Philadelphia, Pennsylvania, United States
| | - Ron W Reeder
- University of Utah, Department of Pediatrics, Salt Lake City, Utah, United States
| | - Ryan W Morgan
- The Children's Hospital of Philadelphia, 6567, Department of Anesthesiology and Critical Care Medicine, Philadelphia, Pennsylvania, United States
- University of Pennsylvania, 6572, Philadelphia, Pennsylvania, United States
| | - Ericka L Fink
- Children's Hospital of Pittsburgh of UPMC, 6619, Department of Critical Care Medicine, Pittsburgh, Pennsylvania, United States
| | - Deborah Franzon
- UCSF Benioff Children's Hospital, 21642, Department of Pediatrics, San Francisco, California, United States
| | - Kathryn Graham
- The Children's Hospital of Philadelphia, 6567, Department of Anesthesiology and Critical Care Medicine, Philadelphia, Pennsylvania, United States
- University of Pennsylvania, 6572, Philadelphia, Pennsylvania, United States
| | - Monica L Harding
- University of Utah, Department of Pediatrics, Salt Lake City, Utah, United States
| | - Peter M Mourani
- University of Arkansas for Medical Sciences, 12215, Pediatrics, Critical Care Medicine, Little Rock, Arkansas, United States
- Arkansas Childrens Research Institute, 366944, Little Rock, Arkansas, United States
| | - Vinay M Nadkarni
- The Children's Hospital of Philadelphia, 6567, Department of Anesthesiology and Critical Care Medicine, Philadelphia, Pennsylvania, United States
| | - Heather A Wolfe
- The Children's Hospital of Philadelphia, 6567, Department of Anesthesiology and Critical Care Medicine, Philadelphia, Pennsylvania, United States
| | - Tageldin Ahmed
- Children's Hospital of Michigan, 2969, Department of Pediatrics , Detroit, Michigan, United States
| | - Michael J Bell
- Children's National Hospital, 8404, Department of Pediatrics, Washington, District of Columbia, United States
- The George Washington University School of Medicine and Health Sciences, 43989, Washington, District of Columbia, United States
| | - Candice Burns
- Washington University School of Medicine in Saint Louis, 12275, Department of Pediatrics, St Louis, Missouri, United States
| | - Joseph A Carcillo
- Children's Hospital of Pittsburgh of UPMC Department of Pediatric Critical Care Medicine, 549368, Pittsburgh, Pennsylvania, United States
| | - Todd C Carpenter
- University of Colorado School of Medicine, 12225, Aurora, Colorado, United States
- Children's Hospital Colorado, 2932, Department of Pediatrics, Aurora, Colorado, United States
| | - J Wesley Diddle
- The Children's Hospital of Philadelphia, 6567, Department of Anesthesiology and Critical Care Medicine, Philadelphia, Pennsylvania, United States
| | - Myke Federman
- University of California Los Angeles, 8783, Los Angeles, California, United States
- UCLA Mattel Children's Hospital, 21785, Department of Pediatrics, Los Angeles, California, United States
| | - Stuart H Friess
- Washington University School of Medicine in Saint Louis, 12275, Department of Pediatrics, St Louis, Missouri, United States
| | - Mark Hall
- Nationwide Children's Hospital, 2650, Department of Pediatrics, Columbus, Ohio, United States
- The Ohio State University, 2647, Columbus, Ohio, United States
| | - David A Hehir
- The Children's Hospital of Philadelphia, 6567, Department of Anesthesiology and Critical Care Medicine, Philadelphia, Pennsylvania, United States
| | - Christopher M Horvat
- Children's Hospital of Pittsburgh of UPMC, 6619, Department of Critical Care Medicine, Pittsburgh, Pennsylvania, United States
- University of Pittsburgh, 6614, Pittsburgh, Pennsylvania, United States
| | - Leanna L Huard
- University of California Los Angeles, 8783, Los Angeles, California, United States
- UCLA Mattel Children's Hospital, 21785, Department of Pediatrics, Los Angeles, California, United States
| | - Tensing Maa
- Nationwide Children's Hospital, 2650, Department of Pediatrics , Columbus, Ohio, United States
- The Ohio State University, 2647, Columbus, Ohio, United States
| | - Kathleen L Meert
- Children's Hospital of Michigan, 2969, Department of Pediatrics, Detroit, Michigan, United States
- Central Michigan University, 5649, Mount Pleasant, Michigan, United States
| | - Maryam Y Naim
- The Children's Hospital of Philadelphia, 6567, Department of Anesthesiology and Critical Care Medicine, Philadelphia, Pennsylvania, United States
| | - Daniel Notterman
- Princeton University, 6740, Department of Molecular Biology, Princeton, New Jersey, United States
| | - Murray M Pollack
- Children's National Hospital, 8404, Department of Pediatrics, Washington, District of Columbia, United States
- The George Washington University School of Medicine and Health Sciences, 43989, Washington, District of Columbia, United States
| | - Carleen Schneiter
- University of Colorado School of Medicine, 12225, Aurora, Colorado, United States
- Children's Hospital Colorado, 2932, Department of Pediatrics , Aurora, Colorado, United States
| | - Matthew P Sharron
- Children's National Medical Center, 8404, Department of Pediatrics, Washington, District of Columbia, United States
- The George Washington University School of Medicine and Health Sciences, 43989, Washington, District of Columbia, United States
| | - Neeraj Srivastava
- UCLA Mattel Children's Hospital, 21785, Department of Pediatrics, Los Angeles, California, United States
- University of California Los Angeles, 8783, Los Angeles, California, United States
| | - Shirley Viteri
- Nemours Children's Hospital Delaware, 25401, Department of Pediatrics, Wilmington, Delaware, United States
- Thomas Jefferson University Sidney Kimmel Medical College, 12313, Philadelphia, Pennsylvania, United States
| | - David Wessel
- Children's National Hospital, 8404, Department of Pediatrics, Washington, District of Columbia, United States
- The George Washington University School of Medicine and Health Sciences, 43989, Washington, District of Columbia, United States
| | - Andrew R Yates
- Nationwide Children's Hospital, 2650, Pediatrics, Columbus, Ohio, United States
- The Ohio State University, 2647, Pediatrics, Columbus, Ohio, United States
| | - Robert M Sutton
- The Children's Hospital of Philadelphia, 6567, Department of Anesthesiology and Critical Care Medicine, Philadelphia, Pennsylvania, United States
| | - Robert A Berg
- The Children's Hospital of Philadelphia, 6567, Department of Anesthesiology and Critical Care Medicine, Philadelphia, Pennsylvania, United States
- University of Pennsylvania, 6572, Philadelphia, Pennsylvania, United States;
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