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Koga S, Martin NB, Dickson DW. Evaluating the performance of large language models: ChatGPT and Google Bard in generating differential diagnoses in clinicopathological conferences of neurodegenerative disorders. Brain Pathol 2024; 34:e13207. [PMID: 37553205 PMCID: PMC11006994 DOI: 10.1111/bpa.13207] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 07/31/2023] [Indexed: 08/10/2023] Open
Abstract
This study explores the utility of the large language models (LLMs), specifically ChatGPT and Google Bard, in predicting neuropathologic diagnoses from clinical summaries. A total of 25 cases of neurodegenerative disorders presented at Mayo Clinic brain bank Clinico-Pathological Conferences were analyzed. The LLMs provided multiple pathologic diagnoses and their rationales, which were compared with the final clinical diagnoses made by physicians. ChatGPT-3.5, ChatGPT-4, and Google Bard correctly made primary diagnoses in 32%, 52%, and 40% of cases, respectively, while correct diagnoses were included in 76%, 84%, and 76% of cases, respectively. These findings highlight the potential of artificial intelligence tools like ChatGPT in neuropathology, suggesting they may facilitate more comprehensive discussions in clinicopathological conferences.
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Affiliation(s)
- Shunsuke Koga
- Department of NeuroscienceMayo ClinicJacksonvilleFloridaUSA
- Present address:
Department of Pathology and Laboratory MedicineHospital of the University of PennsylvaniaPhiladelphiaPennsylvaniaUSA
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Sawant NV, Chang SS, Pandit KA, Khekare P, Warner WR, Zimmern PE, De Nisco NJ. VesiX cetylpyridinium chloride is rapidly bactericidal and reduces uropathogenic Escherichia coli bladder epithelial cell invasion in vitro. Microbiol Spectr 2024; 12:e0271223. [PMID: 38240572 PMCID: PMC10913388 DOI: 10.1128/spectrum.02712-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 12/11/2023] [Indexed: 03/06/2024] Open
Abstract
Management of urinary tract infection (UTI) in postmenopausal women can be challenging. The recent rise in resistance to most of the available oral antibiotic options together with high recurrence rate in postmenopausal women has further complicated treatment of UTI. As such, intravesical instillations of antibiotics like gentamicin are being investigated as an alternative to oral antibiotic therapies. This study evaluates the efficacy of the candidate intravesical therapeutic VesiX, a solution containing the cationic detergent Cetylpyridinium chloride, against a broad range of uropathogenic bacterial species clinically isolated from postmenopausal women with recurrent UTI (rUTI). We also evaluate the cytotoxicity of VesiX against cultured bladder epithelial cells and find that low concentrations of 0.0063% and 0.0125% provide significant bactericidal effect toward diverse bacterial species including uropathogenic Escherichia coli (UPEC), Klebsiella pneumoniae, Enterococcus faecalis, Pseudomonas aeruginosa, and Proteus mirabilis while minimizing cytotoxic effects against cultured 5637 bladder epithelial cells. Lastly, to begin to evaluate the potential utility of using VesiX in combination therapy with existing intravesical therapies for rUTI, we investigate the combined effects of VesiX and the intravesical antibiotic gentamicin. We find that VesiX and gentamicin are not antagonistic and are able to reduce levels of intracellular UPEC in cultured bladder epithelial cells. IMPORTANCE When urinary tract infections (UTIs), which affect over 50% of women, become resistant to available antibiotic therapies dangerous complications like kidney infection and lethal sepsis can occur. New therapeutic paradigms are needed to expand our arsenal against these difficult to manage infections. Our study investigates VesiX, a Cetylpyridinium chloride (CPC)-based therapeutic, as a candidate broad-spectrum antimicrobial agent for use in bladder instillation therapy for antibiotic-resistant UTI. CPC is a cationic surfactant that is FDA-approved for use in mouthwashes and is used as a food additive but has not been extensively evaluated as a UTI therapeutic. Our study is the first to investigate its rapid bactericidal kinetics against diverse uropathogenic bacterial species isolated from postmenopausal women with recurrent UTI and host cytotoxicity. We also report that together with the FDA-approved bladder-instillation agent gentamicin, VesiX was able to significantly reduce intracellular populations of uropathogenic bacteria in cultured bladder epithelial cells.
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Affiliation(s)
- Namrata V. Sawant
- Department of Biological Sciences, The University of Texas at Dallas, Richardson, Texas, USA
| | - Samuel S. Chang
- Department of Biological Sciences, The University of Texas at Dallas, Richardson, Texas, USA
| | - Krutika A. Pandit
- Department of Biological Sciences, The University of Texas at Dallas, Richardson, Texas, USA
| | - Prachi Khekare
- Department of Biological Sciences, The University of Texas at Dallas, Richardson, Texas, USA
| | | | - Philippe E. Zimmern
- Department of Urology, The University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Nicole J. De Nisco
- Department of Biological Sciences, The University of Texas at Dallas, Richardson, Texas, USA
- Department of Urology, The University of Texas Southwestern Medical Center, Dallas, Texas, USA
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Sehra, Sadia H, Haq SU, Alhazmi H, Khan I, Niazai S. A comparative analysis of three distinct fractional derivatives for a second grade fluid with heat generation and chemical reaction. Sci Rep 2024; 14:4482. [PMID: 38396191 DOI: 10.1038/s41598-024-55059-9] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 02/20/2024] [Indexed: 02/25/2024] Open
Abstract
This article provides a comparison among the generalized Second Grade fluid flow described by three recently proposed fractional derivatives i.e. Atangana Baleanu fractional derivative in Caputo sense (ABC), Caputo Fabrizio (CF) and Constant Proportional-Caputo hybrid (CPC) fractional derivative. The heat mass transfer is observed during the flow past a vertical porous plate that is accelerated exponentially under the effects of the Magneto hydro dynamics. The effects of the heat generation and exponential heating in the temperature boundary layer and chemical reaction at the concentration boundary layer are also analyzed in this article. The flow model is described by three partial differential equations and the set of non-dimensional PDE's is transformed into ODE's by utilization of the integral transform technique (Laplace transform). For the better understanding of the rheological properties of the Second Grade fluid we used the CF, ABC and CPC operators to describe the memory effects. The analytical exact solution of the problem is obtained in the form of G-functions and Mittag Leffler functions. For the physical significance of flow parameters, different parameters are graphed. From this analysis it is concluded that the CPC is the most suitable operator to describe the memory effects.
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Affiliation(s)
- Sehra
- Shaheed Benazir Bhutto Women University Peshawar, Peshawar, 25000, Khyber Pakhtunkhwa, Pakistan
| | - Haleema Sadia
- Shaheed Benazir Bhutto Women University Peshawar, Peshawar, 25000, Khyber Pakhtunkhwa, Pakistan
| | - Sami Ul Haq
- Department of Mathematics, Islamia College Peshawar, Peshawar, 25000, Khyber Pakhtunkhwa, Pakistan
| | - Hadil Alhazmi
- Department of Mathematical Sciences, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, 11671, Riyadh, Saudi Arabia
| | - Ilyas Khan
- Department of Mathematics, College of Education, Majmmah University, 11952, Al-Majmaah, Saudi Arabia
| | - Shafiullah Niazai
- Department of Mathematics, Education Faculty, Laghman University, Mehtarlam City, 2701, Laghman, Afghanistan.
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Zhang L, Zeng J, Huang H, Zhu Y, Peng K, Liu C, Luo F, Yang W, Wu M. Impact of chest pain center quality control indicators on mortality risk in ST-segment elevation myocardial infarction patients: a study based on Killip classification. Front Cardiovasc Med 2024; 10:1243436. [PMID: 38235291 PMCID: PMC10791892 DOI: 10.3389/fcvm.2023.1243436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 11/29/2023] [Indexed: 01/19/2024] Open
Abstract
Background Despite the crucial role of Chest pain centers (CPCs) in acute myocardial infarction (AMI) management, China's mortality rate for ST-segment elevation myocardial infarction (STEMI) has remained stagnant. This study evaluates the influence of CPC quality control indicators on mortality risk in STEMI patients receiving primary percutaneous coronary intervention (PPCI) during the COVID-19 pandemic. Methods A cohort of 664 consecutive STEMI patients undergoing PPCI from 2020 to 2022 was analyzed using Cox proportional hazards regression models. The cohort was stratified by Killip classification at admission (Class 1: n = 402, Class ≥2: n = 262). Results At a median follow-up of 17 months, 35 deaths were recorded. In Class ≥2, longer door-to-balloon (D-to-B) time, PCI informed consent time, catheterization laboratory activation time, and diagnosis-to-loading dose dual antiplatelet therapy (DAPT) time were associated with increased mortality risk. In Class 1, consultation time (notice to arrival) under 10 min reduced death risk. In Class ≥2, PCI informed consent time under 20 min decreased mortality risk. Conclusion CPC quality control metrics affect STEMI mortality based on Killip class. Key factors include time indicators and standardization of CPC management. The study provides guidance for quality care during COVID-19.
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Affiliation(s)
- Lingling Zhang
- Department of Cardiology, Xiangtan Central Hospital, Xiangtan, China
- Chest Pain Centre, Xiangtan Central Hospital, Xiangtan, China
- Medical Department, Xiangtan Central Hospital, Xiangtan, China
| | - Jianping Zeng
- Department of Cardiology, Xiangtan Central Hospital, Xiangtan, China
- Chest Pain Centre, Xiangtan Central Hospital, Xiangtan, China
- Department of Cardiology, the Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Haobo Huang
- Department of Cardiology, Xiangtan Central Hospital, Xiangtan, China
- Chest Pain Centre, Xiangtan Central Hospital, Xiangtan, China
| | - Yunlong Zhu
- Department of Cardiology, Xiangtan Central Hospital, Xiangtan, China
- Chest Pain Centre, Xiangtan Central Hospital, Xiangtan, China
- Graduate Collaborative Training Base of Xiangtan Central Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- Department of Cardiology, the Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Ke Peng
- Department of Scientific Research, Xiangtan Central Hospital, Xiangtan, China
| | - Cai Liu
- Chest Pain Centre, Xiangtan Central Hospital, Xiangtan, China
| | - Fei Luo
- Chest Pain Centre, Xiangtan Central Hospital, Xiangtan, China
| | - Wenbin Yang
- Chest Pain Centre, Xiangtan Central Hospital, Xiangtan, China
- Medical Department, Xiangtan Central Hospital, Xiangtan, China
| | - Mingxin Wu
- Department of Cardiology, Xiangtan Central Hospital, Xiangtan, China
- Chest Pain Centre, Xiangtan Central Hospital, Xiangtan, China
- Graduate Collaborative Training Base of Xiangtan Central Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
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Chen L, Zhang S, Zhang B, Liang Q, Luo D, Yu X, Yao B, Zhao K, Yang Z, Tang Y, Wu Z. Study on the poly(methyl methacrylate-acrylic acid)/calcium phosphate cement composite bound by chelation with enhanced water absorption and biomechanical properties. J Mech Behav Biomed Mater 2023; 147:106149. [PMID: 37782989 DOI: 10.1016/j.jmbbm.2023.106149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/22/2023] [Accepted: 09/25/2023] [Indexed: 10/04/2023]
Abstract
Polymethylmethacrylate (PMMA) bone cement has been widely used as a critical material for fixing prostheses and filling bone defects. The shrinkage of PMMA bone cement was addressed by the additives, however, the uneven integral water absorption and expansion performance as well as the deteriorated mechanical properties of the modified bone cement after immersion in phosphate buffered saline (PBS) and simulation body fluid (SBF) affected the long-term stability after implantation. Calcium phosphate cement (CPC) is a biomaterial with promising applications in orthopedics, whose hydration reaction provides an important driving force for the transfer of water. Besides, the mechanical properties of CPC can be enhanced with the curing process. In this study, CPC was utilized to modify the poly(methyl methacrylate-acrylic acid) [P(MMA-AA)] bone cement. The results demonstrated the successful construction of interconnected CPC water delivery networks in the P(MMA-AA)/CPC composite, the water absorption ratio and expansion ratio of the composite were up to 131.18 ± 9.14% and 168.19 ± 5.44%, respectively. Meanwhile, the transformation of CPC water delivery networks into rigid mechanical support networks as well as the chelation interaction between organic-inorganic enhanced the mechanical properties of the composite after immersion, the compressive strength after immersion reached 62.97 ± 0.97 MPa, which was 27.65% higher than that before immersion. The degradation ratio of the composite was up to 13.76 ± 0.23% after 9 days of immersion, which was 16.4% higher than that of CPC. Furthermore, composites exhibited superior biocompatibility as the release of Ca2+. Therefore, P(MMA-AA)/CPC composite serves as a promising medical filling material for clinical use.
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Affiliation(s)
- Lei Chen
- School of Science, Xi'an University of Technology, Xi'an, 710054, PR China; Shaanxi Province Key Laboratory of Corrosion and Protection, Xi'an University of Technology, Xi'an, 710048, PR China
| | - Shitong Zhang
- School of Materials Science and Engineering, Xi'an University of Technology, Xi'an, 710048, PR China
| | - Bo Zhang
- School of Materials Science and Engineering, Xi'an University of Technology, Xi'an, 710048, PR China
| | - Qian Liang
- School of Science, Xi'an University of Technology, Xi'an, 710054, PR China
| | - Dong Luo
- School of Science, Xi'an University of Technology, Xi'an, 710054, PR China
| | - Xiaojiao Yu
- School of Science, Xi'an University of Technology, Xi'an, 710054, PR China
| | - Binghua Yao
- School of Science, Xi'an University of Technology, Xi'an, 710054, PR China
| | - Kang Zhao
- School of Materials Science and Engineering, Xi'an University of Technology, Xi'an, 710048, PR China; Shaanxi Province Key Laboratory of Corrosion and Protection, Xi'an University of Technology, Xi'an, 710048, PR China
| | - Zhao Yang
- Institute of Orthopaedics, Xi'jing Hospital, Fourth Military Medical University, Xi'an, 710032, PR China.
| | - Yufei Tang
- School of Materials Science and Engineering, Xi'an University of Technology, Xi'an, 710048, PR China; Shaanxi Province Key Laboratory of Corrosion and Protection, Xi'an University of Technology, Xi'an, 710048, PR China.
| | - Zixiang Wu
- Institute of Orthopaedics, Xi'jing Hospital, Fourth Military Medical University, Xi'an, 710032, PR China.
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Tanaka Gutiez M, Beuchat I, Novy J, Ben-Hamouda N, Rossetti AO. Outcome of comatose patients following cardiac arrest: When mRS completes CPC. Resuscitation 2023; 192:109997. [PMID: 37827427 DOI: 10.1016/j.resuscitation.2023.109997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/05/2023] [Accepted: 10/06/2023] [Indexed: 10/14/2023]
Abstract
AIM Good outcome in patients following cardiac arrest (CA) is usually defined as Cerebral Performance Category (CPC) 1-2, while CPC 3 is debated, and CPC 4-5 represent poor outcome. We aimed to assess when the modified Rankin Scale (mRS) can improve CPC outcome description, especially in CPC 3. We further aimed to correlate neuron specific enolase (NSE) with both functional measures to explore their relationship with neuronal damage. METHODS Peak NSE within the first 48 hours, and CPC and mRS at 3 months were prospectively collected for 665 consecutive comatose adults following CA treated between April 2016 and April 2023. For each CPC category, mRS was described. We considered good outcome as mRS 1-3, in line with existing recommendations. CPC and mRS were correlated to peak serum NSE using non-parametric assessments. RESULTS CPC 1, 2, 4 and 5 correlated almost perfectly with mRS in terms of good and poor outcomes. However, CPC 3 was heterogeneously associated to the dichotomized mRS (53.1% had good outcome (mRS 0-3), 46.9% poor outcome (mRS 4-6)). NSE was strongly correlated with CPC (Spearman's rho 0.616, P < 0.001) and mRS (Spearman's rho 0.613, P < 0.001). CONCLUSION CPC and mRS correlate similarly with neuronal damage. Whilst CPC 1-2 and CPC 4-5 are strongly associated with mRS 0-3 and, respectively, with mRS 5-6, CPC 3 is heterogenous: both good and poor mRS scores are found within this category. Therefore, we suggest that the mRS should be routinely assessed in patients with CPC 3 to refine outcome description.
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Affiliation(s)
- Masumi Tanaka Gutiez
- Department of Neurology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland; Department of Critical Care, King's College Hospital NHS Foundation Trust, London, UK
| | - Isabelle Beuchat
- Department of Neurology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Jan Novy
- Department of Neurology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Nawfel Ben-Hamouda
- Department of Adult Intensive Care Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Andrea O Rossetti
- Department of Neurology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.
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7
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Aguilar S, García-Olloqui P, Amigo-Morán L, Torán JL, López JA, Albericio G, Abizanda G, Herrero D, Vales Á, Rodríguez-Diaz S, Higuera M, García-Martín R, Vázquez J, Mora C, González-Aseguinolaza G, Prosper F, Pelacho B, Bernad A. Cardiac Progenitor Cell Exosomal miR-935 Protects against Oxidative Stress. Cells 2023; 12:2300. [PMID: 37759522 PMCID: PMC10528297 DOI: 10.3390/cells12182300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 08/31/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
Oxidative stress-induced myocardial apoptosis and necrosis are critically involved in ischemic infarction, and several sources of extracellular vesicles appear to be enriched in therapeutic activities. The central objective was to identify and validate the differential exosome miRNA repertoire in human cardiac progenitor cells (CPC). CPC exosomes were first analyzed by LC-MS/MS and compared by RNAseq with exomes of human mesenchymal stromal cells and human fibroblasts to define their differential exosome miRNA repertoire (exo-miRSEL). Proteomics demonstrated a highly significant representation of cardiovascular development functions and angiogenesis in CPC exosomes, and RNAseq analysis yielded about 350 different miRNAs; among the exo-miRSEL population, miR-935 was confirmed as the miRNA most significantly up-regulated; interestingly, miR-935 was also found to be preferentially expressed in mouse primary cardiac Bmi1+high CPC, a population highly enriched in progenitors. Furthermore, it was found that transfection of an miR-935 antagomiR combined with oxidative stress treatment provoked a significant increment both in apoptotic and necrotic populations, whereas transfection of a miR-935 mimic did not modify the response. Conclusion. miR-935 is a highly differentially expressed miRNA in exo-miRSEL, and its expression reduction promotes oxidative stress-associated apoptosis. MiR-935, together with other exosomal miRNA members, could counteract oxidative stress-related apoptosis, at least in CPC surroundings.
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Affiliation(s)
- Susana Aguilar
- Cardiac Stem Cells Lab, Centro Nacional de Biotecnología (CNB-CSIC), Department of Immunology and Oncology, Campus Universidad Autónoma de Madrid, 28049 Madrid, Spain; (S.A.); (L.A.-M.); (J.L.T.); (G.A.); (D.H.); (M.H.); (R.G.-M.); (C.M.)
| | - Paula García-Olloqui
- Center for Applied Medical Research (CIMA), Regenerative Medicine Department, University of Navarra, 31008 Pamplona, Spain; (P.G.-O.); (G.A.); (Á.V.); (S.R.-D.); (F.P.)
- Instituto de Investigación Sanitaria de Navarra (IdiSNA), 31008 Pamplona, Spain;
| | - Lidia Amigo-Morán
- Cardiac Stem Cells Lab, Centro Nacional de Biotecnología (CNB-CSIC), Department of Immunology and Oncology, Campus Universidad Autónoma de Madrid, 28049 Madrid, Spain; (S.A.); (L.A.-M.); (J.L.T.); (G.A.); (D.H.); (M.H.); (R.G.-M.); (C.M.)
| | - José Luis Torán
- Cardiac Stem Cells Lab, Centro Nacional de Biotecnología (CNB-CSIC), Department of Immunology and Oncology, Campus Universidad Autónoma de Madrid, 28049 Madrid, Spain; (S.A.); (L.A.-M.); (J.L.T.); (G.A.); (D.H.); (M.H.); (R.G.-M.); (C.M.)
| | - Juan Antonio López
- Cardiovascular Proteomics Laboratory, Spanish National Cardiovascular Research Center (CNIC), Melchor Fernández Almagro 3, 28029 Madrid, Spain; (J.A.L.); (J.V.)
- CIBER de Enfermedades Cardiovasculares (CIBERCV), 28029 Madrid, Spain
| | - Guillermo Albericio
- Cardiac Stem Cells Lab, Centro Nacional de Biotecnología (CNB-CSIC), Department of Immunology and Oncology, Campus Universidad Autónoma de Madrid, 28049 Madrid, Spain; (S.A.); (L.A.-M.); (J.L.T.); (G.A.); (D.H.); (M.H.); (R.G.-M.); (C.M.)
| | - Gloria Abizanda
- Center for Applied Medical Research (CIMA), Regenerative Medicine Department, University of Navarra, 31008 Pamplona, Spain; (P.G.-O.); (G.A.); (Á.V.); (S.R.-D.); (F.P.)
- Instituto de Investigación Sanitaria de Navarra (IdiSNA), 31008 Pamplona, Spain;
| | - Diego Herrero
- Cardiac Stem Cells Lab, Centro Nacional de Biotecnología (CNB-CSIC), Department of Immunology and Oncology, Campus Universidad Autónoma de Madrid, 28049 Madrid, Spain; (S.A.); (L.A.-M.); (J.L.T.); (G.A.); (D.H.); (M.H.); (R.G.-M.); (C.M.)
| | - África Vales
- Center for Applied Medical Research (CIMA), Regenerative Medicine Department, University of Navarra, 31008 Pamplona, Spain; (P.G.-O.); (G.A.); (Á.V.); (S.R.-D.); (F.P.)
- Instituto de Investigación Sanitaria de Navarra (IdiSNA), 31008 Pamplona, Spain;
| | - Saray Rodríguez-Diaz
- Center for Applied Medical Research (CIMA), Regenerative Medicine Department, University of Navarra, 31008 Pamplona, Spain; (P.G.-O.); (G.A.); (Á.V.); (S.R.-D.); (F.P.)
- Instituto de Investigación Sanitaria de Navarra (IdiSNA), 31008 Pamplona, Spain;
| | - Marina Higuera
- Cardiac Stem Cells Lab, Centro Nacional de Biotecnología (CNB-CSIC), Department of Immunology and Oncology, Campus Universidad Autónoma de Madrid, 28049 Madrid, Spain; (S.A.); (L.A.-M.); (J.L.T.); (G.A.); (D.H.); (M.H.); (R.G.-M.); (C.M.)
| | - Rubén García-Martín
- Cardiac Stem Cells Lab, Centro Nacional de Biotecnología (CNB-CSIC), Department of Immunology and Oncology, Campus Universidad Autónoma de Madrid, 28049 Madrid, Spain; (S.A.); (L.A.-M.); (J.L.T.); (G.A.); (D.H.); (M.H.); (R.G.-M.); (C.M.)
- Section of Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA 02215, USA
| | - Jesús Vázquez
- Cardiovascular Proteomics Laboratory, Spanish National Cardiovascular Research Center (CNIC), Melchor Fernández Almagro 3, 28029 Madrid, Spain; (J.A.L.); (J.V.)
- CIBER de Enfermedades Cardiovasculares (CIBERCV), 28029 Madrid, Spain
| | - Carmen Mora
- Cardiac Stem Cells Lab, Centro Nacional de Biotecnología (CNB-CSIC), Department of Immunology and Oncology, Campus Universidad Autónoma de Madrid, 28049 Madrid, Spain; (S.A.); (L.A.-M.); (J.L.T.); (G.A.); (D.H.); (M.H.); (R.G.-M.); (C.M.)
| | - Gloria González-Aseguinolaza
- Instituto de Investigación Sanitaria de Navarra (IdiSNA), 31008 Pamplona, Spain;
- Section of Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA 02215, USA
| | - Felipe Prosper
- Center for Applied Medical Research (CIMA), Regenerative Medicine Department, University of Navarra, 31008 Pamplona, Spain; (P.G.-O.); (G.A.); (Á.V.); (S.R.-D.); (F.P.)
- Instituto de Investigación Sanitaria de Navarra (IdiSNA), 31008 Pamplona, Spain;
- Program of Gene Therapy, Center for Applied Medical Research (CIMA), University of Navarra, 31008 Pamplona, Spain
- Department of Hematology and Cell Therapy, Clínica Universidad de Navarra, 30008 Pamplona, Spain
| | - Beatriz Pelacho
- Center for Applied Medical Research (CIMA), Regenerative Medicine Department, University of Navarra, 31008 Pamplona, Spain; (P.G.-O.); (G.A.); (Á.V.); (S.R.-D.); (F.P.)
- Instituto de Investigación Sanitaria de Navarra (IdiSNA), 31008 Pamplona, Spain;
| | - Antonio Bernad
- Cardiac Stem Cells Lab, Centro Nacional de Biotecnología (CNB-CSIC), Department of Immunology and Oncology, Campus Universidad Autónoma de Madrid, 28049 Madrid, Spain; (S.A.); (L.A.-M.); (J.L.T.); (G.A.); (D.H.); (M.H.); (R.G.-M.); (C.M.)
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8
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Harring AKV, Kramer-Johansen J, Tjelmeland IBM. Resuscitation of older adults in Norway; a comparison of survival and outcome after out-of-hospital cardiac arrest in healthcare institutions and at home. Resuscitation 2023; 189:109871. [PMID: 37327851 DOI: 10.1016/j.resuscitation.2023.109871] [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: 04/06/2023] [Revised: 06/06/2023] [Accepted: 06/07/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Perceptions about expected outcome after out-of-hospital cardiac arrest (OHCA) influence treatment decisions, and there is a need for updated evidence about outcomes for the elderly. METHOD We conducted a cross-sectional study of cases reported to the Norwegian Cardiac Arrest Registry from 2015 through 2021 of patients 60 years and older, suffering cardiac arrest in healthcare institutions or at home. We examined reasons for emergency medical service (EMS) withholding or withdrawing resuscitation. We compared survival and neurological outcome for EMS-treated patients and explored factors associated with survival using multivariate logistic regression. RESULT We included 12,191 cases and the EMS started resuscitation in 10,340 (85%). The incidence per capita of OHCA the EMS were alerted to was 267/100,000 in healthcare institutions and 134/100,000 at home. Resuscitation was most frequently withdrawn due to medical history (n = 1251). In healthcare institutions, 72 of 1503 (4.8%) patients survived to 30 days compared to 752 of 8837 (8.5%) at home (P <.001). We found survivors in all age cohorts both in healthcare institutions and at home, and most of the 824 survivors had a good neurological outcome with a Cerebral Performance Category ≤2 (88%). CONCLUSION Medical history was the most frequent reason for EMS not to start or continue resuscitation, indicating a need for a discussion about, and documentation of, advance directives in this age group. When EMS attempted resuscitation, most survivors had a good neurological outcome, both in healthcare institutions and at home.
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Affiliation(s)
| | - Jo Kramer-Johansen
- Division of Prehospital Services, Oslo University Hospital, Oslo, Norway; Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Ingvild B M Tjelmeland
- Division of Prehospital Services, Oslo University Hospital, Oslo, Norway; Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
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9
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Riveira-Muñoz E, Garcia-Vidal E, Bañó-Polo M, León R, Blanc V, Clotet B, Ballana E. Cetylpyridinium Chloride-Containing Mouthwashes Show Virucidal Activity against Herpes Simplex Virus Type 1. Viruses 2023; 15:1433. [PMID: 37515121 PMCID: PMC10383790 DOI: 10.3390/v15071433] [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: 05/21/2023] [Revised: 06/16/2023] [Accepted: 06/22/2023] [Indexed: 07/30/2023] Open
Abstract
The oral cavity is particularly susceptible to viral infections that are self-recovering in most cases. However, complications may appear in severe cases and/or immunocompromised subjects. Cetylpyridinium chloride (CPC)-containing mouthwashes are able to decrease the infectivity of the SARS-CoV-2 virus by disrupting the integrity of the viral envelope. Here, we show that CPC, as the active ingredient contained in commercialized, exerts significant antiviral activity against enveloped viruses, such as HSV-1, but not against non-enveloped viruses, such as HPV. CPC-containing mouthwashes have been used as antiseptics for decades, and thus, they can represent a cost-effective measure to limit infection and spread of enveloped viruses infecting the oral cavity, aiding in reducing viral transmission.
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Affiliation(s)
- Eva Riveira-Muñoz
- IrsiCaixa AIDS Research Institute, Health Research Institute Germans Trias i Pujol (IGTP), Hospital Germans Trias i Pujol, Universitat Autònoma de Barcelona, 08916 Badalona, Spain
| | - Edurne Garcia-Vidal
- IrsiCaixa AIDS Research Institute, Health Research Institute Germans Trias i Pujol (IGTP), Hospital Germans Trias i Pujol, Universitat Autònoma de Barcelona, 08916 Badalona, Spain
| | - Manuel Bañó-Polo
- Department of Microbiology, Dentaid Research Center, 08290 Cerdanyola del Vallès, Spain
| | - Rubén León
- Department of Microbiology, Dentaid Research Center, 08290 Cerdanyola del Vallès, Spain
| | - Vanessa Blanc
- Department of Microbiology, Dentaid Research Center, 08290 Cerdanyola del Vallès, Spain
| | - Bonaventura Clotet
- IrsiCaixa AIDS Research Institute, Health Research Institute Germans Trias i Pujol (IGTP), Hospital Germans Trias i Pujol, Universitat Autònoma de Barcelona, 08916 Badalona, Spain
| | - Ester Ballana
- IrsiCaixa AIDS Research Institute, Health Research Institute Germans Trias i Pujol (IGTP), Hospital Germans Trias i Pujol, Universitat Autònoma de Barcelona, 08916 Badalona, Spain
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Korotkaya Y, Chen AY, Steward R, Chan EY, Schmidt EO, Gipson JD. Evaluating the frequency of crisis pregnancy center visits among a population of patients seeking abortions in Los Angeles. Contraception 2023;:110024. [PMID: 36934955 DOI: 10.1016/j.contraception.2023.110024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 03/13/2023] [Accepted: 03/14/2023] [Indexed: 03/19/2023]
Abstract
OBJECTIVES Studies have illustrated crisis pregnancy centers' (CPC) disingenuous practices regarding abortion services. We evaluated the proportion of patients who visited a CPC before their abortion in Los Angeles. STUDY DESIGN Patients attending one of two abortion clinics between July 2019 - March 2020 were recruited for a survey that examined patient characteristics and locations of care. RESULTS Five hundred and eleven respondents participated (62% response rate). Less than one percent of individuals visited a CPC before their abortion. Fifty three percent of survey respondents obtained their abortion within one visit, 39% within two unique clinic visits, and eight percent visited three or more clinics. CONCLUSION CPC visits before abortion were uncommon in our patient population.
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D'Amico F, Moro M, Saracino M, Marmiere M, Cilona MB, Lloyd-Jones G, Zangrillo A. Efficacy of Cetylpyridinium Chloride mouthwash against SARS-CoV-2: A systematic review of randomized controlled trials. Mol Oral Microbiol 2023; 38:171-180. [PMID: 36808889 DOI: 10.1111/omi.12408] [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: 01/22/2023] [Accepted: 02/13/2023] [Indexed: 02/22/2023]
Abstract
INTRODUCTION COVID-19 is a transmissible respiratory and multisystem disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Viral transmission occurs mainly through the spread of salivary droplets or aerosol from an infected subject. Studies suggest that salivary viral load is correlated with disease severity and probability of transmission. Cetylpyridinium chloride mouthwash has been found to be effective in reducing salivary viral load. The aim of this systematic review of randomized controlled trials is to evaluate the efficacy of the mouthwash ingredient cetylpyridinium chloride on salivary viral load in SARS-CoV-2 infection. METHODS Randomized controlled trials comparing cetylpyridinium chloride mouthwash with placebo and other mouthwash ingredients in SARS-CoV-2 positive individuals were identified and evaluated. RESULTS Six studies with a total of 301 patients that met the inclusion criteria were included. The studies reported the efficacy of cetylpyridinium chloride mouthwashes in reduction on SARS-CoV-2 salivary viral load compared to placebo and other mouthwash ingredients. CONCLUSION Mouthwashes containing cetylpyridinium chloride are effective against salivary viral load of SARS-CoV-2 in vivo. There is also the possibility that the use of mouthwash containing cetylpyridinium chloride in SARS-CoV-2 positive subjects could reduce transmissibility and severity of COVID-19.
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Affiliation(s)
- Filippo D'Amico
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Matteo Moro
- Infection Control Committee, IRCCS San Raffaele Hospital, Milan, Italy
| | - Marco Saracino
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Marilena Marmiere
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Maria Bernadette Cilona
- Unit of Immunology, Rheumatology, Allergy, and Rare Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | | | - Alberto Zangrillo
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
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Luo Z, Liu S, Li Y, Zhong S. Under the chest pain center mechanism, whether the nursing handover affects the nursing efficiency and the outcomes of patients with STEMI in the emergency department? A retrospective study. BMC Emerg Med 2023; 23:3. [PMID: 36635636 PMCID: PMC9835307 DOI: 10.1186/s12873-023-00773-2] [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: 06/06/2022] [Accepted: 01/05/2023] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND The introduction of chest pain centers (CPC) in China has achieved great success in shortening the duration of nursing operations to significantly improve the treatment and outcomes of patients with ST-segment elevation myocardial infarction (STEMI). The nursing handover period is still considered the high incidence period of adverse events because of the distractibility of nurses' attention, potential interruption, and unclear responsibilities. Under the CPC mechanism, the nursing efficiency and patients' outcome, whether affected by the nursing handover, is still a knowledge gap in research. This is also the aim of this study. METHODS A retrospective study was conducted with data from STEMI patients from a tertiary hospital in the north of Sichuan Province from January 2018 to December 2019 through the Chinese CPC database. Patients are divided into handover and non-handover groups according to the time they presented in the Emergency Department. D2FMC, FMC2FE, FMC2BS, FMC2CBR, FMC2FAD, and D2W were selected to measure nursing efficiency. The occurrence of major adverse cardiovascular events, the highest troponin values within 72 h of hospitalization, and the length of hospitalization were selected to measure the patient outcomes. Continuous variables are summarized as mean ± SD, and t-tests of the data were performed. P-values < 0.05 (two-tailed) were considered statistically significant. RESULTS A total of 231 cases were enrolled, of which 40 patients (17.3%) were divided into the handover period group, and 191 (82.6%) belonged to the non-handover period group. The results showed that the handover period group took significantly longer on items FMC2BS (P < 0.001) and FMC2FAD (P < 0.001). Still, there were no significant differences in D2FMC and FMC2FE, and others varied too little to be clinically meaningful, as well as the outcomes of patients. CONCLUSION This study confirms that nursing handover impacts the nursing efficiency of STEMI patients, especially in FMC2BS and FMC2FAD. Hospitals should also reform the nursing handover rules after the construction of CPC and enhance the triage training of nurses to assure nursing efficiency so that CPC can play a better role.
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Affiliation(s)
- Zhenyu Luo
- Guanyuan Central Hospital, Guangyuan, Sichuan China
| | - Sihui Liu
- grid.429222.d0000 0004 1798 0228The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yunying Li
- Guanyuan Central Hospital, Guangyuan, Sichuan China
| | - Shuyan Zhong
- Guanyuan Central Hospital, Guangyuan, Sichuan China
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Blankenburg J, Vinke J, Riedel B, Zankovic S, Schmal H, Seidenstuecker M. Alternative Geometries for 3D Bioprinting of Calcium Phosphate Cement as Bone Substitute. Biomedicines 2022; 10. [PMID: 36551998 DOI: 10.3390/biomedicines10123242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 12/06/2022] [Accepted: 12/07/2022] [Indexed: 12/15/2022] Open
Abstract
In the literature, many studies have described the 3D printing of ceramic-based scaffolds (e.g., printing with calcium phosphate cement) in the form of linear structures with layer rotations of 90°, although no right angles can be found in the human body. Therefore, this work focuses on the adaptation of biological shapes, including a layer rotation of only 1°. Sample shapes were printed with calcium phosphate cement using a 3D Bioplotter from EnvisionTec. Both straight and wavy spokes were printed in a round structure with 12 layers. Depending on the strand diameter (200 and 250 µm needle inner diameter) and strand arrangement, maximum failure loads of 444.86 ± 169.39 N for samples without subsequent setting in PBS up to 1280.88 ± 538.66 N after setting in PBS could be achieved.
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Saud Z, Tyrrell VJ, Zaragkoulias A, Protty MB, Statkute E, Rubina A, Bentley K, White DA, Rodrigues PDS, Murphy RC, Köfeler H, Griffiths WJ, Alvarez-Jarreta J, Brown RW, Newcombe RG, Heyman J, Pritchard M, Mcleod RW, Arya A, Lynch CA, Owens D, Jenkins PV, Buurma NJ, O'Donnell VB, Thomas DW, Stanton RJ. The SARS-CoV2 envelope differs from host cells, exposes procoagulant lipids, and is disrupted in vivo by oral rinses. J Lipid Res 2022; 63:100208. [PMID: 35436499 PMCID: PMC9010312 DOI: 10.1016/j.jlr.2022.100208] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 03/23/2022] [Accepted: 04/04/2022] [Indexed: 12/14/2022] Open
Abstract
The lipid envelope of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is an essential component of the virus; however, its molecular composition is undetermined. Addressing this knowledge gap could support the design of antiviral agents as well as further our understanding of viral-host protein interactions, infectivity, pathogenicity, and innate immune system clearance. Lipidomics revealed that the virus envelope comprised mainly phospholipids (PLs), with some cholesterol and sphingolipids, and with cholesterol/phospholipid ratio similar to lysosomes. Unlike cellular membranes, procoagulant amino-PLs were present on the external side of the viral envelope at levels exceeding those on activated platelets. Accordingly, virions directly promoted blood coagulation. To investigate whether these differences could enable selective targeting of the viral envelope in vivo, we tested whether oral rinses containing lipid-disrupting chemicals could reduce infectivity. Products containing PL-disrupting surfactants (such as cetylpyridinium chloride) met European virucidal standards in vitro; however, components that altered the critical micelle concentration reduced efficacy, and products containing essential oils, povidone-iodine, or chlorhexidine were ineffective. This result was recapitulated in vivo, where a 30-s oral rinse with cetylpyridinium chloride mouthwash eliminated live virus in the oral cavity of patients with coronavirus disease 19 for at least 1 h, whereas povidone-iodine and saline mouthwashes were ineffective. We conclude that the SARS-CoV-2 lipid envelope i) is distinct from the host plasma membrane, which may enable design of selective antiviral approaches; ii) contains exposed phosphatidylethanolamine and phosphatidylserine, which may influence thrombosis, pathogenicity, and inflammation; and iii) can be selectively targeted in vivo by specific oral rinses.
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Affiliation(s)
- Zack Saud
- Division of Infection & Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Victoria J Tyrrell
- Division of Infection & Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Andreas Zaragkoulias
- Division of Infection & Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Majd B Protty
- Division of Infection & Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Evelina Statkute
- Division of Infection & Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Anzelika Rubina
- Division of Infection & Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Kirsten Bentley
- Division of Infection & Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Daniel A White
- Division of Infection & Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | | | - Robert C Murphy
- Department of Pharmacology, University of Colorado Denver, Aurora, CO, USA
| | - Harald Köfeler
- Core Facility Mass Spectrometry, Medical University of Graz, Graz, Austria
| | | | - Jorge Alvarez-Jarreta
- Division of Infection & Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Richard William Brown
- ENT Department, Betsi Cadwaladr University Health Board, Wrexham Maelor Hospital, Wrexham, United Kingdom
| | - Robert G Newcombe
- Division of Population Medicine, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - James Heyman
- Division of Surgery, Cardiff and Vale University Health Board, Cardiff, United Kingdom
| | - Manon Pritchard
- Advanced Therapies Group, School of Dentistry, Cardiff University, Cardiff, United Kingdom
| | - Robert Wj Mcleod
- Division of Surgery, Cardiff and Vale University Health Board, Cardiff, United Kingdom
| | - Arvind Arya
- ENT Department, Betsi Cadwaladr University Health Board, Wrexham Maelor Hospital, Wrexham, United Kingdom
| | - Ceri-Ann Lynch
- Anaesthetics and Critical Care Directorate, Cwm Taf University Health Board, Royal Glamorgan Hospital, Llantrisant, United Kingdom
| | - David Owens
- Division of Surgery, Cardiff and Vale University Health Board, Cardiff, United Kingdom
| | - P Vince Jenkins
- Haemostasis Diagnosis and Research, University Hospital Wales, Cardiff, United Kingdom
| | - Niklaas J Buurma
- Physical Organic Chemistry Centre, School of Chemistry, Cardiff University, Cardiff, United Kingdom
| | - Valerie B O'Donnell
- Division of Infection & Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom.
| | - David W Thomas
- Advanced Therapies Group, School of Dentistry, Cardiff University, Cardiff, United Kingdom.
| | - Richard J Stanton
- Division of Infection & Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom.
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Kim Y, Lee EJ, Kotula AP, Takagi S, Chow L, Alimperti S. Engineering 3D Printed Scaffolds with Tunable Hydroxyapatite. J Funct Biomater 2022; 13:34. [PMID: 35466216 DOI: 10.3390/jfb13020034] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/18/2022] [Accepted: 03/21/2022] [Indexed: 02/04/2023] Open
Abstract
Orthopedic and craniofacial surgical procedures require the reconstruction of bone defects caused by trauma, diseases, and tumor resection. Successful bone restoration entails the development and use of bone grafts with structural, functional, and biological features similar to native tissues. Herein, we developed three-dimensional (3D) printed fine-tuned hydroxyapatite (HA) biomimetic bone structures, which can be applied as grafts, by using calcium phosphate cement (CPC) bioink, which is composed of tetracalcium phosphate (TTCP), dicalcium phosphate anhydrous (DCPA), and a liquid [Polyvinyl butyral (PVB) dissolved in ethanol (EtOH)]. The ink was ejected through a high-resolution syringe nozzle (210 µm) at room temperature into three different concentrations (0.01, 0.1, and 0.5) mol/L of the aqueous sodium phosphate dibasic (Na2HPO4) bath that serves as a hardening accelerator for HA formation. Raman spectrometer, X-ray diffraction (XRD), and scanning electron microscopy (SEM) demonstrated the real-time HA formation in (0.01, 0.1, and 0.5) mol/L Na2HPO4 baths. Under those conditions, HA was formed at different amounts, which tuned the scaffolds’ mechanical properties, porosity, and osteoclast activity. Overall, this method may pave the way to engineer 3D bone scaffolds with controlled HA composition and pre-defined properties, which will enhance graft-host integration in various anatomic locations.
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Takeuchi A, Yamamoto N, Ohmori T, Hayashi K, Miwa S, Igarashi K, Higuchi T, Abe K, Yonezawa H, Morinaga S, Araki Y, Asano Y, Saito S, Tsuchiya H. Primary total knee arthroplasty assisted by computed tomography-free navigation for secondary knee osteoarthritis following massive calcium phosphate cement packing for distal femoral giant-cell bone tumor treatment: a case report. BMC Musculoskelet Disord 2022; 23:170. [PMID: 35193563 PMCID: PMC8864852 DOI: 10.1186/s12891-022-05131-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 02/17/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Giant cell tumor of bone (GCTB) is an intermediate tumor commonly arising from the epiphysis of the distal femur and proximal tibia. Standard GCTB treatment is joint-preserving surgery performed using thorough curettage and the filling of the cavity with allo-, auto-, polymethyl methacrylate (PMMA), or synthetic bone graft. Calcium phosphate cement (CPC) is an artificial bone substitute, which has the benefit of being able to adjust defects, consequently inducing immediate mechanical strength, and promoting biological healing. Secondary osteoarthritis may occur following GCTB treatment and may need additional surgery if severe. However, details regarding surgery for secondary osteoarthritis have not been fully elucidated. There are no reports on the use of total knee arthroplasty (TKA) for the treatment of secondary osteoarthritis following CPC packing. The insertion of an alignment rod is a standard procedure in TKA; however, it was difficult to perform in this case due to CPC. Therefore, we used a computed tomography (CT)-free navigation system to assist the distal femur cut. This study presents a knee joint secondary osteoarthritis case following CPC packing for GCTB curettage that was treated with standard TKA. CASE PRESENTATION A 67-year-old Japanese woman, who was previously diagnosed with left distal femur GCTB and was treated by curettage and CPC packing 7 years ago, complained of severe knee pain. Left knee joint plain radiography revealed Kellgren and Lawrence (K-L) grade 4 osteoarthritis without evidence of tumor recurrence. Therefore, she was scheduled for TKA. There are no reports on the cutting of a femoral condyle surface with massive CPC with accurate alignment. Because it is difficult to insert the alignment rod intramedullary and cut the femoral condyle with CPC, we planned CT-free navigation-guided surgery for accurate bone cutting using an oscillating tip saw system to prevent CPC cracks. We performed standard TKA without complications, as planned. Postoperative X-ray showed normal alignment. Knee Society Knee Score (KSKS) and Knee Society Function Score (KSFS) ameliorated from 27 and 29 to 64 and 68, respectively The patient can walk without a cane postoperatively. CONCLUSION There was no report about the surface TKA guided by CT-free navigation after primary GCT surgery with CPC. We believe that this case report will help in planning salvage surgery for secondary osteoarthritis after CPC packing.
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Affiliation(s)
- Akihiko Takeuchi
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa-shi, Ishikawa-ken, 920-8641, Japan.
| | - Norio Yamamoto
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa-shi, Ishikawa-ken, 920-8641, Japan
| | - Takaaki Ohmori
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa-shi, Ishikawa-ken, 920-8641, Japan
| | - Katsuhiro Hayashi
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa-shi, Ishikawa-ken, 920-8641, Japan
| | - Shinji Miwa
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa-shi, Ishikawa-ken, 920-8641, Japan
| | - Kentaro Igarashi
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa-shi, Ishikawa-ken, 920-8641, Japan
| | - Takashi Higuchi
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa-shi, Ishikawa-ken, 920-8641, Japan
| | - Kensaku Abe
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa-shi, Ishikawa-ken, 920-8641, Japan
| | - Hirotaka Yonezawa
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa-shi, Ishikawa-ken, 920-8641, Japan
| | - Sei Morinaga
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa-shi, Ishikawa-ken, 920-8641, Japan
| | - Yoshihiro Araki
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa-shi, Ishikawa-ken, 920-8641, Japan
| | - Yohei Asano
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa-shi, Ishikawa-ken, 920-8641, Japan
| | - Shiro Saito
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa-shi, Ishikawa-ken, 920-8641, Japan
| | - Hiroyuki Tsuchiya
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa-shi, Ishikawa-ken, 920-8641, Japan
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Thao Le TT, Makkar P, Tripathi G, Lee BT. Porous CDHA microspheres laden brushite-based injectable bone substitutes for improved bone regeneration. J Biomed Mater Res B Appl Biomater 2022; 110:1771-1779. [PMID: 35176200 DOI: 10.1002/jbm.b.35033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 01/20/2022] [Accepted: 01/29/2022] [Indexed: 11/11/2022]
Abstract
Porous CDHA microspheres were incorporated into innovative injectable calcium phosphate cement (CPC) to enhance the rate of degradation and bioactivity of bone regeneration. With varying content of CDHA microspheres, the final setting time varied between 12 and 17 min, which is adequate for surgeons to accomplish the implantation. Compressive strength ranged between 6 and 8 MPa, until the addition of porous CDHA microsphere into CPC reached 20 vol %, but decreased dramatically after 30 vol % addition. Therefore, CPC with 20 vol % addition of porous CDHA microspheres was found appropriate for in vitro degradation and cytocompatibility studies. Histological assessment identified new bone formation around the injected bone substitute without significant inflammatory reactions. In vivo analysis of rat femoral defects revealed a threefold higher bone formation in CPC/CDHA 20 vol % than in CPC, due to the more cell migration and penetration into CPC by the existence of porous CDHA microspheres. Based on the promising results obtained, this novel injectable bone substitute may be useful in bone regeneration.
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Affiliation(s)
- Thi Thanh Thao Le
- Department of Regenerative Medicine, College of Medicine, Soonchunhyang University, Cheonan, South Korea
| | - Preeti Makkar
- Institute of Tissue Regeneration, Soonchunhyang University, Cheonan, South Korea
| | - Garima Tripathi
- Institute of Tissue Regeneration, Soonchunhyang University, Cheonan, South Korea
| | - Byong-Taek Lee
- Department of Regenerative Medicine, College of Medicine, Soonchunhyang University, Cheonan, South Korea.,Institute of Tissue Regeneration, Soonchunhyang University, Cheonan, South Korea
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18
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Enrico B, Marc TH. First and second transscleral cyclophotocoagulation treatments provide similar intraocular pressure-lowering efficacy in patients with refractory glaucoma. Int Ophthalmol 2022; 42:2363-2369. [PMID: 35113312 PMCID: PMC9314293 DOI: 10.1007/s10792-022-02234-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 01/12/2022] [Indexed: 11/16/2022]
Abstract
Purpose The aim of this study is to address the safety and effectiveness of a second continuous-wave transscleral cyclophotocoagulation (CW-TSCPC) treatment by comparing its outcome against a first CW-TSCPC treatment in the same patients with refractory glaucoma. Methods Twenty-one eyes with either primary or secondary glaucoma received a second CW-TSCPC laser session ≥ 3 months after the first treatment. Intraocular pressure (IOP), best-corrected visual acuity (BCVA), and number of topical or oral ophthalmic pressure-reducing medications were registered at every time point up to the last follow-up at 3 months. A complete slit-lamp examination was conducted to record for complications or other abnormal ocular findings. Success was defined as IOP between 6 and 21 mmHg and > 20% reduction in IOP with or without anti-glaucoma medications. Results At 3 months follow-up of the first CW-TSCPC treatment, a 24.8% decrease in IOP was observed, whereas a 45.6% IOP decrease was observed 3 months post the second CW-TSCPC treatment. Visual acuity did not decrease, and no major complications were observed post either treatment within the follow-up period. Time to failure was 79.5 ± 24.6 and 77.1 ± 29.4, respectively (P = 0.955). No serious complications were observed. Conclusion A second CW-TSCPC treatment proved to be a safe and effective treatment option when the first CW-TSCPC treatment was insufficient in maintaining the desired IOP level for a prolonged time (mean time between both sessions 6.4 ± 8.0 months).
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Affiliation(s)
- Bernardi Enrico
- Medical Faculty, University of Zurich, Zurich, Switzerland.,Department of Ophthalmology, University Hospital Zurich, Frauenklinikstrasse 24, 8091, Zurich, Switzerland
| | - Töteberg-Harms Marc
- Medical Faculty, University of Zurich, Zurich, Switzerland. .,Department of Ophthalmology, University Hospital Zurich, Frauenklinikstrasse 24, 8091, Zurich, Switzerland. .,Medical College of Georgia, Department of Ophthalmology, Augusta University, Augusta, GA, USA.
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Rodríguez-Casanovas HJ, la Rosa MD, Bello-Lemus Y, Rasperini G, Acosta-Hoyos AJ. Virucidal Activity of Different Mouthwashes Using a Novel Biochemical Assay. Healthcare (Basel) 2021; 10:63. [PMID: 35052227 PMCID: PMC8775226 DOI: 10.3390/healthcare10010063] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/06/2021] [Accepted: 12/21/2021] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Saliva of patients with COVID-19 has a high SARS-CoV-2 viral load. The risk of spreading the virus is not insignificant, and procedures for reducing viral loads in the oral cavity have been proposed. Little research to date has been performed on the effect of mouthwashes on the SARS-CoV-2 virus, and some of their mechanisms of action remain unknown. METHODS SARS-CoV-2 positive nasopharyngeal swabs measured by RT-PCR were used for virucidal activity in a 1:1 ratio, with an incubation time of 1 min. The solutions used in this study were: iodopovidone (8 mg); * D-limonene, a terpene extracted from citrus peels (0.3%); † cetylpyridinium chloride (0.1%) (CPC); ‡ chlorhexidine gluconate (10%) (CHX); § a CPC (0.12%) and CHX (0.05%) containing formula; ** a formula containing essential oils; †† a CPC containing formula (0.07%); ‡‡ a D-limonene (0.2%) and CPC (0.05%) containing formula; §§ a solution containing sodium fluoride (0.05%) and CPC (0.075%); *** a solution containing CHX (0.12%) and; ††† a CHX (0.2%) containing formula. ‡‡‡ As a control reaction, saline solution or excipient solution (water, glycerin, citric acid, colorant, sodium citrate) was used. CONCLUSION Within the limitations of this study, we can conclude that a mouthwash containing both D-limonene and CPC reduced the virucidal activity in about 6 logs (>99.999% reduction). Hence, establishing a clinical protocol for dentists is suggested, where all patients to be treated rinse pre-operatively with a mouthwash containing both D-limonene and CPC to reduce the likelihood of infection with SARS-CoV-2 for dentists. This is a relatively inexpensive way to reduce viral transmission of SARS-CoV-2 from infected individuals within the community. It is also a simple way to decrease infections from asymptomatic and pre-symptomatic patients.
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Affiliation(s)
| | - Manuel De la Rosa
- Department of Periodontics, AME University Monterrey, Monterrey 64060, Mexico;
| | - Yesit Bello-Lemus
- School of Basic and Biomedical Sciences, Universidad Simón Bolívar, Barranquilla 080002, Colombia;
| | - Giulio Rasperini
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, 20122 Milan, Italy;
- Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - Antonio J. Acosta-Hoyos
- School of Basic and Biomedical Sciences, Universidad Simón Bolívar, Barranquilla 080002, Colombia;
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20
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Kelbsch C, Stingl K, Jung R, Kempf M, Richter P, Strasser T, Peters T, Wilhelm B, Wilhelm H, Tonagel F. How lesions at different locations along the visual pathway influence pupillary reactions to chromatic stimuli. Graefes Arch Clin Exp Ophthalmol 2021; 260:1675-1685. [PMID: 34902059 PMCID: PMC9007757 DOI: 10.1007/s00417-021-05513-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 11/18/2021] [Accepted: 11/24/2021] [Indexed: 11/26/2022] Open
Abstract
PURPOSE To examine systematically how prechiasmal, chiasmal, and postchiasmal lesions along the visual pathway affect the respective pupillary responses to specific local monochromatic stimuli. METHODS Chromatic pupil campimetry (CPC) was performed in three patient groups (10 subjects with status after anterior ischemic optic neuropathy, 6 with chiasmal lesions, and 12 with optic tract or occipital lobe lesions (tumor, ischemia)) using red, low-intensity red, and blue local stimuli within the central 30° visual field. Affected areas - as determined by visual field defects revealed using conventional static perimetry - were compared with non-affected areas. Outcome parameters were the relative maximal constriction amplitude (relMCA) and the latency to constriction onset of the pupillary responses. RESULTS A statistically significant relMCA reduction was observed in the affected areas of postchiasmal lesions with red (p = 0.004) and low-intensity red stimulation (p = 0.001). RelMCA reduction in the affected areas seemed more pronounced for low-intensity red stimulation (46.5% mean reduction compared to non-affected areas; 36% for red stimulation), however statistically not significant. In prechiasmal lesions, a statistically significant latency prolongation could be demonstrated in the affected areas with low-intensity red stimulation (p = 0.015). CONCLUSION Our results indicate that the choice of stimulus characteristics is relevant in detecting defects in the pupillary pathway of impairment along the visual pathway, favoring red stimuli of low intensity over blue stimuli. Such knowledge opens the door for further fundamental research in pupillary pathways and is important for future clinical application of pupillography in neuro-ophthalmologic patients.
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Affiliation(s)
- Carina Kelbsch
- University Eye Hospital, Centre for Ophthalmology, University of Tuebingen, Tuebingen, Germany
- Pupil Research Group at the Centre for Ophthalmology, University of Tuebingen, Tuebingen, Germany
| | - Krunoslav Stingl
- University Eye Hospital, Centre for Ophthalmology, University of Tuebingen, Tuebingen, Germany.
- Pupil Research Group at the Centre for Ophthalmology, University of Tuebingen, Tuebingen, Germany.
- Center for Rare Eye Diseases, University of Tuebingen, Tuebingen, Germany.
| | - Ronja Jung
- University Eye Hospital, Centre for Ophthalmology, University of Tuebingen, Tuebingen, Germany
- Pupil Research Group at the Centre for Ophthalmology, University of Tuebingen, Tuebingen, Germany
| | - Melanie Kempf
- University Eye Hospital, Centre for Ophthalmology, University of Tuebingen, Tuebingen, Germany
- Center for Rare Eye Diseases, University of Tuebingen, Tuebingen, Germany
| | - Paul Richter
- University Eye Hospital, Centre for Ophthalmology, University of Tuebingen, Tuebingen, Germany
- Pupil Research Group at the Centre for Ophthalmology, University of Tuebingen, Tuebingen, Germany
| | - Torsten Strasser
- University Eye Hospital, Centre for Ophthalmology, University of Tuebingen, Tuebingen, Germany
- Pupil Research Group at the Centre for Ophthalmology, University of Tuebingen, Tuebingen, Germany
- Institute for Ophthalmic Research, Centre for Ophthalmology, University of Tuebingen, Tuebingen, Germany
| | - Tobias Peters
- Pupil Research Group at the Centre for Ophthalmology, University of Tuebingen, Tuebingen, Germany
| | - Barbara Wilhelm
- Pupil Research Group at the Centre for Ophthalmology, University of Tuebingen, Tuebingen, Germany
| | - Helmut Wilhelm
- University Eye Hospital, Centre for Ophthalmology, University of Tuebingen, Tuebingen, Germany
- Pupil Research Group at the Centre for Ophthalmology, University of Tuebingen, Tuebingen, Germany
| | - Felix Tonagel
- University Eye Hospital, Centre for Ophthalmology, University of Tuebingen, Tuebingen, Germany
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21
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Petsalaki E, Zachos G. The Abscission Checkpoint: A Guardian of Chromosomal Stability. Cells 2021; 10:3350. [PMID: 34943860 DOI: 10.3390/cells10123350] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 11/25/2021] [Accepted: 11/26/2021] [Indexed: 12/11/2022] Open
Abstract
The abscission checkpoint contributes to the fidelity of chromosome segregation by delaying completion of cytokinesis (abscission) when there is chromatin lagging in the intercellular bridge between dividing cells. Although additional triggers of an abscission checkpoint-delay have been described, including nuclear pore defects, replication stress or high intercellular bridge tension, this review will focus only on chromatin bridges. In the presence of such abnormal chromosomal tethers in mammalian cells, the abscission checkpoint requires proper localization and optimal kinase activity of the Chromosomal Passenger Complex (CPC)-catalytic subunit Aurora B at the midbody and culminates in the inhibition of Endosomal Sorting Complex Required for Transport-III (ESCRT-III) components at the abscission site to delay the final cut. Furthermore, cells with an active checkpoint stabilize the narrow cytoplasmic canal that connects the two daughter cells until the chromatin bridges are resolved. Unsuccessful resolution of chromatin bridges in checkpoint-deficient cells or in cells with unstable intercellular canals can lead to chromatin bridge breakage or tetraploidization by regression of the cleavage furrow. In turn, these outcomes can lead to accumulation of DNA damage, chromothripsis, generation of hypermutation clusters and chromosomal instability, which are associated with cancer formation or progression. Recently, many important questions regarding the mechanisms of the abscission checkpoint have been investigated, such as how the presence of chromatin bridges is signaled to the CPC, how Aurora B localization and kinase activity is regulated in late midbodies, the signaling pathways by which Aurora B implements the abscission delay, and how the actin cytoskeleton is remodeled to stabilize intercellular canals with DNA bridges. Here, we review recent progress toward understanding the mechanisms of the abscission checkpoint and its role in guarding genome integrity at the chromosome level, and consider its potential implications for cancer therapy.
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22
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Sales-Gil R, Kommer DC, de Castro IJ, Amin HA, Vinciotti V, Sisu C, Vagnarelli P. Non-redundant functions of H2A.Z.1 and H2A.Z.2 in chromosome segregation and cell cycle progression. EMBO Rep 2021; 22:e52061. [PMID: 34423893 PMCID: PMC8567233 DOI: 10.15252/embr.202052061] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 07/26/2021] [Accepted: 08/03/2021] [Indexed: 12/30/2022] Open
Abstract
H2A.Z is a H2A‐type histone variant essential for many aspects of cell biology, ranging from gene expression to genome stability. From deuterostomes, H2A.Z evolved into two paralogues, H2A.Z.1 and H2A.Z.2, that differ by only three amino acids and are encoded by different genes (H2AFZ and H2AFV, respectively). Despite the importance of this histone variant in development and cellular homeostasis, very little is known about the individual functions of each paralogue in mammals. Here, we have investigated the distinct roles of the two paralogues in cell cycle regulation and unveiled non‐redundant functions for H2A.Z.1 and H2A.Z.2 in cell division. Our findings show that H2A.Z.1 regulates the expression of cell cycle genes such as Myc and Ki‐67 and its depletion leads to a G1 arrest and cellular senescence. On the contrary, H2A.Z.2, in a transcription‐independent manner, is essential for centromere integrity and sister chromatid cohesion regulation, thus playing a key role in chromosome segregation.
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Affiliation(s)
- Raquel Sales-Gil
- College of Health, Medicine and Life Science, Brunel University London, London, UK
| | - Dorothee C Kommer
- College of Health, Medicine and Life Science, Brunel University London, London, UK
| | - Ines J de Castro
- College of Health, Medicine and Life Science, Brunel University London, London, UK
| | - Hasnat A Amin
- College of Health, Medicine and Life Science, Brunel University London, London, UK
| | - Veronica Vinciotti
- College of Engineering, Design and Physical Sciences, Research Institute for Environment Health and Society, Brunel University London, London, UK
| | - Cristina Sisu
- College of Health, Medicine and Life Science, Brunel University London, London, UK
| | - Paola Vagnarelli
- College of Health, Medicine and Life Science, Brunel University London, London, UK
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23
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Battaglia Y, Zerbinati L, Belvederi Murri M, Provenzano M, Esposito P, Andreucci M, Storari A, Grassi L. Exploring the Level of Post Traumatic Growth in Kidney Transplant Recipients via Network Analysis. J Clin Med 2021; 10:jcm10204747. [PMID: 34682870 PMCID: PMC8540707 DOI: 10.3390/jcm10204747] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 10/13/2021] [Accepted: 10/14/2021] [Indexed: 02/07/2023] Open
Abstract
Although kidney transplant can lead to psychiatric disorders, psychosocial syndromes and demoralization, a positive post-traumatic growth (PTG) can occur in kidney transplant recipients (KTRs). However, the PTG-Inventory (PTGI), a reliable tool to measure PTG is scarcely used to explore the effect of this stressful event in KTRs. Thus, the purpose of our study was to assess the level of PTG and its correlation with demoralization, physical and emotional symptoms or problems via network analysis in KTRs. Additionally, we aimed at exploring the association of PTG with psychiatric diagnoses, Diagnostic Criteria for Psychosomatic Research (DCPR) conditions, and medical variables. A total of 134 KTRs were tested using MINI International Neuropsychiatric Interview 6.0 (MINI 6.0), DCPR interview, PTGI, Edmonton Symptom Assessment System (ESAS), Canadian Problem Checklist (CPC) and Demoralization scale (DS-IT). PTGI was used to investigate the positive psychological experience of patients after KT. It consists of 21 items divided in five factors. Routine biochemistry, immunosuppressive agents, socio-demographic and clinical data were collected. A symptom network analysis was conducted among PTGI, ESAS and DS-IT. Mean score of PTGI total of sample was 52.81 ± 19.81 with higher scores in women (58.53 ± 21.57) than in men (50.04 ± 18.39) (p < 0.05). PTGI-Relating to Others (16.50 ± 7.99) sub-score was markedly higher than other PTGI factor sub-scores. KTRs with DCPR-alexithymia or International Classification of Diseases, tenth revision (ICD-10) anxiety disorders diagnosis had lower PTGI total score and higher PTGI-Personal Strength sub-score, respectively (p < 0.05). The network analysis identified two communities: PTGI and ESAS with DS-IT. DS-IT Disheartenment, DS-IT Hopelessness and PTGI Relating to Others were the most central items in the network. After 1000 bootstrap procedures, the Exploratory graph analysis revealed the presence of a median of two communities in the network in 97.5% of the bootstrap iterations. A more extensive use of PTGI should be encouraged to identify and enhance the positive psychological changes after KT.
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Affiliation(s)
- Yuri Battaglia
- Nephrology and Dialysis Unit, St. Anna University Hospital, 44124 Ferrara, Italy;
- Correspondence:
| | - Luigi Zerbinati
- Department of Neuroscience and Rehabilitation, Institute of Psychiatry, University of Ferrara, 44124 Ferrara, Italy; (L.Z.); (M.B.M.); (L.G.)
| | - Martino Belvederi Murri
- Department of Neuroscience and Rehabilitation, Institute of Psychiatry, University of Ferrara, 44124 Ferrara, Italy; (L.Z.); (M.B.M.); (L.G.)
| | - Michele Provenzano
- Nephrology and Dialysis Unit, Department of Health Sciences, Magna Graecia University, 88100 Catanzaro, Italy; (M.P.); (M.A.)
| | - Pasquale Esposito
- Department of Internal Medicine, Division of Nephrology, Dialysis and Transplantation, University of Genoa and IRCCS Ospedale Policlinico San Martino, 16132 Genoa, Italy;
| | - Michele Andreucci
- Nephrology and Dialysis Unit, Department of Health Sciences, Magna Graecia University, 88100 Catanzaro, Italy; (M.P.); (M.A.)
| | - Alda Storari
- Nephrology and Dialysis Unit, St. Anna University Hospital, 44124 Ferrara, Italy;
| | - Luigi Grassi
- Department of Neuroscience and Rehabilitation, Institute of Psychiatry, University of Ferrara, 44124 Ferrara, Italy; (L.Z.); (M.B.M.); (L.G.)
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24
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Kuldinow D, Przybylak A, Li Y, Perez-Lorenzo LJ, Oberreit D, Fernandez de la Mora J. Heterogeneous nucleation measurements in a sheathed planar diffusive condensation particle counter. J Colloid Interface Sci 2022; 605:556-70. [PMID: 34340040 DOI: 10.1016/j.jcis.2021.07.049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 07/10/2021] [Accepted: 07/12/2021] [Indexed: 11/22/2022]
Abstract
HYPOTHESIS While the lack of efficient tools yielding controllable uniform saturation ratios (S) has delayed basic experimental heterogeneous nucleation studies, common diffusive condensation particle counters (DCPCs) could fill this gap if their S-variation were minimized by increasing the proportion of sheath gas (σ) surrounding a central core of purified clusters. ANALYSIS We measure the activation probability P of Tetraheptylammonium Bromide cluster cations (THA-Br)n-1THA+ in Kanomax's fast CPC while controlling S through the saturator and condenser temperatures (Ts, Tc), varying σ, and changing the size (n) of purified salt clusters via high resolution mobility selection. FINDINGS Experimental curves P(Ts,n) obtained in 1-butanol/air at fixed Tc (13 °C) and variable n and Ts (3 ≤ n ≤ 16; 30 ≤ Ts ≤ 40 °C) rise sharply versus both n and Ts. Their steepness increases five-fold with increasing σ to about σ = 75%, with little effect thereafter. Measurements changing S would yield size distributions of unknown aerosols at fairly high resolution. Comparing P(Ts,n) data with predictions from capillary theory suggests that basic heterogeneous nucleation measurements can be carried out, but instrument improvements are still needed.
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25
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Lenzhofer M, Hohensinn M, Hitzl W, Steiner V, Motaabbed A, Motloch K, Colvin HP, Reitsamer HA, Moussa S. Two-year efficacy after first transscleral controlled cyclophotocoagulation in patients with and without pseudoexfoliation. Graefes Arch Clin Exp Ophthalmol 2021; 259:2351-2361. [PMID: 33797631 PMCID: PMC8352832 DOI: 10.1007/s00417-021-05157-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 03/08/2021] [Accepted: 03/10/2021] [Indexed: 11/30/2022] Open
Abstract
Purpose Transscleral controlled cyclophotocoagulation (COCO) is a transscleral 810-nm diode laser cyclophotocoagulation that automatically adjusts the applied laser energy utilizing an optical feedback loop. The present study investigates the influence of pseudoexfoliation (PEX) on the efficacy of COCO in a Caucasian study population. Methods Retrospective data from 130 consecutive eyes were analyzed during a 2-year follow-up. Baseline characteristics, intraocular pressure (IOP), number of IOP-lowering medications, visual field, best-corrected visual acuity (BCVA), and secondary surgical interventions (SSI) were analyzed. The primary endpoint was IOP reduction at M24 compared to baseline, and the secondary endpoints were IOP course, reduction of IOP-lowering medications, surgical success, and IOP-lowering SSIs stratified by PEX and baseline IOP. Results IOP reductions of −35, −39, −25, −25, −23, −34, and −36% could be achieved from baseline to D1, W1, M1, M3, M6, M12, and M24 (all p < 0.001), respectively, while there was a significant overall reduction over time (p < 0.001) in the number of topical IOP-lowering medications postoperatively. The proportion of eyes requiring additional systemic IOP-lowering medication reduced from 31 to 0% at M24 (p = 0.025). Eyes without PEX and IOP < 30 mmHg at baseline had the lowest risk for IOP-lowering SSIs (p < 0.03). BCVA dropped at M12 (0.25 [95% CI: 0.12–0.38]), and the drop persisted during the following 12 months. Conclusion The present study demonstrates a midterm IOP-lowering effect after COCO while reducing the burden for topical and systemic IOP-lowering medications. Patients without PEX and IOP < 30 mmHg have a lower risk of SSI. The procedure per se cannot be excluded as causative for the decreased postoperative BCVA. Further prospective investigations are suggested.
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Affiliation(s)
- Markus Lenzhofer
- Department of Ophthalmology and Optometry, Paracelsus Medical University, Salzburger Landeskliniken, Muellner Hauptstrasse 48, 5020, Salzburg, Austria. .,Research Program Experimental Ophthalmology and Glaucoma Research, Paracelsus Medical University, Muellner Hauptstrasse 48, 5020, Salzburg, Austria.
| | - Melchior Hohensinn
- Department of Ophthalmology and Optometry, Paracelsus Medical University, Salzburger Landeskliniken, Muellner Hauptstrasse 48, 5020, Salzburg, Austria.,Research Program Experimental Ophthalmology and Glaucoma Research, Paracelsus Medical University, Muellner Hauptstrasse 48, 5020, Salzburg, Austria
| | - Wolfgang Hitzl
- Department of Ophthalmology and Optometry, Paracelsus Medical University, Salzburger Landeskliniken, Muellner Hauptstrasse 48, 5020, Salzburg, Austria.,Research Program Experimental Ophthalmology and Glaucoma Research, Paracelsus Medical University, Muellner Hauptstrasse 48, 5020, Salzburg, Austria
| | - Veit Steiner
- Department of Ophthalmology and Optometry, Paracelsus Medical University, Salzburger Landeskliniken, Muellner Hauptstrasse 48, 5020, Salzburg, Austria.,Research Program Experimental Ophthalmology and Glaucoma Research, Paracelsus Medical University, Muellner Hauptstrasse 48, 5020, Salzburg, Austria
| | - Armin Motaabbed
- Department of Ophthalmology and Optometry, Paracelsus Medical University, Salzburger Landeskliniken, Muellner Hauptstrasse 48, 5020, Salzburg, Austria.,Research Program Experimental Ophthalmology and Glaucoma Research, Paracelsus Medical University, Muellner Hauptstrasse 48, 5020, Salzburg, Austria
| | - Karolina Motloch
- Department of Ophthalmology and Optometry, Paracelsus Medical University, Salzburger Landeskliniken, Muellner Hauptstrasse 48, 5020, Salzburg, Austria.,Research Program Experimental Ophthalmology and Glaucoma Research, Paracelsus Medical University, Muellner Hauptstrasse 48, 5020, Salzburg, Austria
| | - Hans Peter Colvin
- Department of Ophthalmology and Optometry, Paracelsus Medical University, Salzburger Landeskliniken, Muellner Hauptstrasse 48, 5020, Salzburg, Austria.,Research Program Experimental Ophthalmology and Glaucoma Research, Paracelsus Medical University, Muellner Hauptstrasse 48, 5020, Salzburg, Austria
| | - Herbert A Reitsamer
- Department of Ophthalmology and Optometry, Paracelsus Medical University, Salzburger Landeskliniken, Muellner Hauptstrasse 48, 5020, Salzburg, Austria.,Research Program Experimental Ophthalmology and Glaucoma Research, Paracelsus Medical University, Muellner Hauptstrasse 48, 5020, Salzburg, Austria
| | - Sarah Moussa
- Department of Ophthalmology and Optometry, Paracelsus Medical University, Salzburger Landeskliniken, Muellner Hauptstrasse 48, 5020, Salzburg, Austria.,Research Program Experimental Ophthalmology and Glaucoma Research, Paracelsus Medical University, Muellner Hauptstrasse 48, 5020, Salzburg, Austria
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Petsalaki E, Zachos G. An ATM-CHK2-INCENP pathway prevents chromatin breakage by regulating the abscission checkpoint. Mol Cell Oncol 2021; 8:1877999. [PMID: 33860082 DOI: 10.1080/23723556.2021.1877999] [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: 10/22/2022]
Abstract
In response to chromatin bridges, the chromosomal passenger complex (CPC) delays completion of cytokinesis (abscission) to prevent chromosome breakage. Here, we discuss recent findings from our lab showing that an ATM-CHK2-INCENP pathway imposes the abscission checkpoint in human cells by regulating CPC midbody-localization.
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Affiliation(s)
- Eleni Petsalaki
- Department of Biology, University of Crete, Heraklion, Greece
| | - George Zachos
- Department of Biology, University of Crete, Heraklion, Greece
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27
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Gindt M, Richez A, Battista M, Fabre R, Thümmler S, Fernandez A, Askenazy F. Validation of the French Version of the Child Posttraumatic Stress Checklist in French School-Aged Children. Front Psychiatry 2021; 12:678916. [PMID: 34489751 PMCID: PMC8418351 DOI: 10.3389/fpsyt.2021.678916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 06/07/2021] [Indexed: 11/13/2022] Open
Abstract
Background: The child posttraumatic stress disorder checklist (CPC) updated to DSM-5 is a questionnaire aimed to assess posttraumatic stress disorder (PTSD) symptoms in children. It is available in both parents and child versions. The back-translation method has been used for the French translation of the CPC. It has not been yet validated in French-speaking populations. The aim of this study was to assess the psychometric properties and the validity of the CPC in a sample of French-speaking schoolchildren and their parents. Methods: The sample was composed by 176 children outpatients implicated in the Nice terrorist attack (14 July 2016) aged 7-17 (mean = 11.68 years, SD = 2.63 months) and 122 parents. Cronbach's alpha was used to test CPC internal consistency. The Spearman-correlation coefficient was performed between the French version of the CPC and the Kiddie Schedule for Affective Disorders and Schizophrenia Present and Lifetime version (K-SADS-PL) to assess the convergent validity. An ROC curve was constructed to verify the validity of the cutoff scores. An evaluation of the sensitivity and specificity of each score and a comparison with the diagnosis of the K-SADS-PL were made. Finally, a principal component analysis with varimax rotation was computed to analyze the structure of the French version of the CPC. Results: Cronbach's alpha coefficient was 0.90 for child version and 0.91 for parent version of the CPC. There was a statistical correlation between the K-SADS-PL for PTSD and the total score of CPC for the child version (r = 0.62; p < 0.001) and for the parent version (r = 0.55; p < 0.001). The sensitivity and specificity of the children version with a threshold of >20 were 73.1 and 84.7%, respectively, using the K-SADS-PL as the diagnostic reference for PTSD. Concerning the parent version, using the same recommended cutoff score, the sensitivity, and specificity were 77 and 80.5%, respectively. Conclusions: The psychometric properties of the French CPC are good. This questionnaire appears to be valid and should be used in French-speaking children.
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Affiliation(s)
- Morgane Gindt
- Service Universitaire de Psychiatrie de l'Enfant et de l'Adolescent, Hôpitaux Pédiatriques de Nice CHU-Lenval, Nice, France.,Université Côte d'Azur, CoBTek, FRIS, Nice, France.,Centre Expert du Psychotrauma PACA Corse, Nice, France
| | - Aurelien Richez
- Service Universitaire de Psychiatrie de l'Enfant et de l'Adolescent, Hôpitaux Pédiatriques de Nice CHU-Lenval, Nice, France.,Université Côte d'Azur, CoBTek, FRIS, Nice, France.,Centre Expert du Psychotrauma PACA Corse, Nice, France
| | - Michèle Battista
- Service Universitaire de Psychiatrie de l'Enfant et de l'Adolescent, Hôpitaux Pédiatriques de Nice CHU-Lenval, Nice, France.,Centre Expert du Psychotrauma PACA Corse, Nice, France
| | - Roxane Fabre
- Université Côte d'Azur, CoBTek, FRIS, Nice, France.,Département de Sante Publique, Centre Hospitalier Universitaire de Nice, Université Cote d'Azur, Nice, France
| | - Susanne Thümmler
- Service Universitaire de Psychiatrie de l'Enfant et de l'Adolescent, Hôpitaux Pédiatriques de Nice CHU-Lenval, Nice, France.,Université Côte d'Azur, CoBTek, FRIS, Nice, France
| | - Arnaud Fernandez
- Service Universitaire de Psychiatrie de l'Enfant et de l'Adolescent, Hôpitaux Pédiatriques de Nice CHU-Lenval, Nice, France.,Université Côte d'Azur, CoBTek, FRIS, Nice, France.,Centre Expert du Psychotrauma PACA Corse, Nice, France
| | - Florence Askenazy
- Service Universitaire de Psychiatrie de l'Enfant et de l'Adolescent, Hôpitaux Pédiatriques de Nice CHU-Lenval, Nice, France.,Université Côte d'Azur, CoBTek, FRIS, Nice, France.,Centre Expert du Psychotrauma PACA Corse, Nice, France
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Kim Y, Lee EJ, Davydov AV, Frukhbeyen S, Seppala JE, Takagi S, Chow L, Alimperti S. Biofabrication of 3D printed hydroxyapatite composite scaffolds for bone regeneration. Biomed Mater 2020; 16. [PMID: 33254152 DOI: 10.1088/1748-605x/abcf03] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 11/30/2020] [Indexed: 11/12/2022]
Abstract
Biofabrication has been adapted in engineering patient-specific biosynthetic grafts for bone regeneration. Herein, we developed a 3D high-resolution, room-temperature printing approach to fabricate osteoconductive scaffolds using calcium phosphate cement (CPC). The non-aqueous CPC bioinks were composed of tetracalcium phosphate (TTCP), dicalcium phosphate anhydrous (DCPA), and Polyvinyl butyral (PVB) dissolved in either ethanol (EtOH) or Tetrahydrofuran (THF). They were printed in an aqueous sodium phosphate bath, which performs as a hardening accelerator for hydroxyapatite (HA) formation and as a retainer for 3D microstructure. The PVB solvents, EtOH or THF, affected differently the slurry rheological properties, scaffold microstructure, mechanical properties, and osteoconductivity. Our proposed approach overcomes limitations of conventional fabrication methods, which require high-temperature (> 50 oC), low-resolution (> 400 μm) printing with an inadequate amount of large ceramic particles (> 35 μm). This proof-of-concept study opens venues in engineering high-resolution, implantable, and osteoconductive scaffolds with predetermined properties for bone regeneration.
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Affiliation(s)
- Yoontae Kim
- American Dental Association Science and Research Institute, American Dental Association Science and Research Institute, Gaithersburg, Maryland, MD 20899, UNITED STATES
| | - Eun-Jin Lee
- American Dental Association Science and Research Institute, American Dental Association Science and Research Institute, Gaithersburg, Maryland, MD 20899, UNITED STATES
| | - Albert V Davydov
- Metallurgy Division, National Institute of Standards and Technology, National Institute of Standards and Technology, Gaithersburg, Maryland, MD 20899, UNITED STATES
| | - Stanislav Frukhbeyen
- American Dental Association Science and Research Institute, American Dental Association Science and Research Institute, Gaithersburg, Maryland, MD 20899, UNITED STATES
| | - Jonathan E Seppala
- Materials Science and Engineering Division, National Institute of Standards and Technology, National Institute of Standards and Technology, Gaithersburg, MD 20899, UNITED STATES
| | - Shozo Takagi
- American Dental Association Science and Research Institute, American Dental Association Science and Research Institute, Gaithersburg, Maryland, MD 20899, UNITED STATES
| | - Laurence Chow
- American Dental Association Science and Research Institute, American Dental Association Science and Research Institute, Gaithersburg, Maryland, MD 20899, UNITED STATES
| | - Stella Alimperti
- American Dental Association Science and Research Institute, American Dental Association Science and Research Institute, Gaithersburg, Maryland, MD 20899, UNITED STATES
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Okon E, Kukula-Koch W, Halasa M, Jarzab A, Baran M, Dmoszynska-Graniczka M, Angelis A, Kalpoutzakis E, Guz M, Stepulak A, Wawruszak A. Magnoflorine-Isolation and the Anticancer Potential against NCI-H1299 Lung, MDA-MB-468 Breast, T98G Glioma, and TE671 Rhabdomyosarcoma Cancer Cells. Biomolecules 2020; 10:E1532. [PMID: 33182753 DOI: 10.3390/biom10111532] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/06/2020] [Accepted: 11/09/2020] [Indexed: 12/12/2022] Open
Abstract
Magnoflorine (MGN) is a quaternary aporphine alkaloid that exhibits numerous therapeutic properties, including neuropsychopharmacological, anti-anxiety, immunomodulatory, anti-inflammatory, antioxidant, or antifungal activities. The aim of the present study was an investigation of the influence of MGN on viability, proliferation, induction of apoptosis, and cell cycle arrest in NCI-H1299 lung, MDA-MB-468 breast, T98G glioma, and TE671 rhabdomyosarcoma cancer cells. MGN was isolated from the roots of Berberis cretica L. by counter-current partition chromatography (CPC). Cell viability and proliferation assessments were performed by means of MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) and 5-bromo-2ʹ-deoxyuridine (BrDU) assays, respectively. The induction of apoptosis and cell cycle progression was measured using fluorescence-activated cell sorting analysis. MGN in high doses inhibits proliferation, induces apoptosis, and inhibits cell cycle in S/G2 phases in a dose-dependent manner. MGN seems to be a promising anti-cancer compound in therapy of some types of lung, breast, glioma, and rhabdomyosarcoma cancers, for which current standard therapies are limited or have severe strong side effects.
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Ohmagari M, Kono Y, Tominaga R. Effect of phosphate starvation on CAPRICE homolog gene expression in the root of Arabidopsis. Plant Biotechnol (Tokyo) 2020; 37:349-352. [PMID: 33088199 PMCID: PMC7557657 DOI: 10.5511/plantbiotechnology.20.0226a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Accepted: 02/26/2020] [Indexed: 06/11/2023]
Abstract
Phosphate (Pi) starvation affects root hair formation to increase the absorptive surface area of the roots. CAPRICE (CPC) and its homolog genes, including TRIPTYCHON (TRY), ENHANCER OF TRY AND CPC1 (ETC1), ETC2, and ETC3, positively regulate root hair formation in a partially redundant manner. In particular, ETC1 responds to Pi deficiency. To clarify role sharing among the CPC homolog genes under Pi-deficient condition, we analyzed the expression of five CPC homolog genes under Pi-deficient condition, using the real-time polymerase chain reaction analysis. Pi starvation enhanced the expression of not only ETC1, but also ETC3. Furthermore, ETC3, which is rarely expressed in the roots, was induced by Pi deficiency. The expression levels of CPC, TRY, and ETC2 in response to Pi deficiency were not significantly different from those under the control conditions. These results suggest that CPC homologs can be divided into two groups, genes that respond to Pi deficiency (ETC1 and ETC3) and those that do not (CPC, TRY, and ETC2).
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Affiliation(s)
- Mika Ohmagari
- School of Applied Biological Science, Hiroshima University, 1-4-4 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8528, Japan
| | - Yusuke Kono
- School of Applied Biological Science, Hiroshima University, 1-4-4 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8528, Japan
| | - Rumi Tominaga
- Graduate School of Integrated Sciences for Life, Hiroshima University, 1-4-4 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8528, Japan
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Gravesteijn BY, Schluep M, Disli M, Garkhail P, Dos Reis Miranda D, Stolker RJ, Endeman H, Hoeks SE. Neurological outcome after extracorporeal cardiopulmonary resuscitation for in-hospital cardiac arrest: a systematic review and meta-analysis. Crit Care 2020; 24:505. [PMID: 32807207 PMCID: PMC7430015 DOI: 10.1186/s13054-020-03201-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 07/26/2020] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND In-hospital cardiac arrest (IHCA) is a major adverse event with a high mortality rate if not treated appropriately. Extracorporeal cardiopulmonary resuscitation (ECPR), as adjunct to conventional cardiopulmonary resuscitation (CCPR), is a promising technique for IHCA treatment. Evidence pertaining to neurological outcomes after ECPR is still scarce. METHODS We performed a comprehensive systematic search of all studies up to December 20, 2019. Our primary outcome was neurological outcome after ECPR at any moment after hospital discharge, defined by the Cerebral Performance Category (CPC) score. A score of 1 or 2 was defined as favourable outcome. Our secondary outcome was post-discharge mortality. A fixed-effects meta-analysis was performed. RESULTS Our search yielded 1215 results, of which 19 studies were included in this systematic review. The average survival rate was 30% (95% CI 28-33%, I2 = 0%, p = 0.24). In the surviving patients, the pooled percentage of favourable neurological outcome was 84% (95% CI 80-88%, I2 = 24%, p = 0.90). CONCLUSION ECPR as treatment for in-hospital cardiac arrest is associated with a large proportion of patients with good neurological outcome. The large proportion of favourable outcome could potentially be explained by the selection of patients for treatment using ECPR. Moreover, survival is higher than described in the conventional CPR literature. As indications for ECPR might extend to older or more fragile patient populations in the future, research should focus on increasing survival, while maintaining optimal neurological outcome.
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Affiliation(s)
- Benjamin Yaël Gravesteijn
- Department of Anaesthesiology, Erasmus University Medical Centre, Rotterdam, The Netherlands.
- Department of Public Health, Erasmus University Medical Centre, Rotterdam, The Netherlands.
| | - Marc Schluep
- Department of Anaesthesiology, Erasmus University Medical Centre, Rotterdam, The Netherlands
- Department of Intensive Care, OLVG, Amsterdam, The Netherlands
| | - Maksud Disli
- Erasmus University Medical Centre School of Medicine, Rotterdam, The Netherlands
| | - Prakriti Garkhail
- Erasmus University Medical Centre School of Medicine, Rotterdam, The Netherlands
| | - Dinis Dos Reis Miranda
- Department of Intensive Care Medicine, Erasmus University Medical Centre, Rotterdam, The Netherlands
| | - Robert-Jan Stolker
- Department of Anaesthesiology, Erasmus University Medical Centre, Rotterdam, The Netherlands
| | - Henrik Endeman
- Department of Intensive Care Medicine, Erasmus University Medical Centre, Rotterdam, The Netherlands
| | - Sanne Elisabeth Hoeks
- Department of Anaesthesiology, Erasmus University Medical Centre, Rotterdam, The Netherlands
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Mao X, Auer DL, Buchalla W, Hiller KA, Maisch T, Hellwig E, Al-Ahmad A, Cieplik F. Cetylpyridinium Chloride: Mechanism of Action, Antimicrobial Efficacy in Biofilms, and Potential Risks of Resistance. Antimicrob Agents Chemother 2020; 64:e00576-20. [PMID: 32513792 DOI: 10.1128/AAC.00576-20] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Antimicrobial resistance is a serious issue for public health care all over the world. While resistance toward antibiotics has attracted strong interest among researchers and the general public over the last 2 decades, the directly related problem of resistance toward antiseptics and biocides has been somewhat left untended. In the field of dentistry, antiseptics are routinely used in professional care, but they are also included in lots of oral care products such as mouthwashes or dentifrices, which are easily available for consumers over-the-counter. Despite this fact, there is little awareness among the dental community about potential risks of the widespread, unreflected, and potentially even needless use of antiseptics in oral care. Cetylpyridinium chloride (CPC), a quaternary ammonium compound, which was first described in 1939, is one of the most commonly used antiseptics in oral care products and included in a wide range of over-the-counter products such as mouthwashes and dentifrices. The aim of the present review is to summarize the current literature on CPC, particularly focusing on its mechanism of action, its antimicrobial efficacy toward biofilms, and on potential risks of resistance toward this antiseptic as well as underlying mechanisms. Furthermore, this work aims to raise awareness among the dental community about the risk of resistance toward antiseptics in general.
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Yao J, Liu Z, Ma W, Dong W, Wang Y, Zhang H, Zhang M, Sun D. Three-Dimensional Coating of SF/PLGA Coaxial Nanofiber Membranes on Surfaces of Calcium Phosphate Cement for Enhanced Bone Regeneration. ACS Biomater Sci Eng 2020; 6:2970-2984. [PMID: 33463266 DOI: 10.1021/acsbiomaterials.9b01729] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 01/21/2023]
Abstract
Calcium phosphate cements (CPCs) have been widely used for the study of bone regeneration because of their excellent physical and chemical properties, but poor biocompatibility and lack of osteoinductivity limit potential clinical applications. To overcome these limitations, and based on our previous research, CPC scaffolds were prepared with CPC as the principal material and polyethylene glycol (PEG) as a porogen to introduce interconnected macropores. Using a bespoke electrospinning auxiliary receiver, silk fibroin (SF)/poly(lactide-co-glycolide) (PLGA) coaxial nanofibers containing dexamethasone (DXM) and recombinant human bone morphogenetic protein-2 (rhBMP2) were fabricated which were coated on the surface of the CPC. By comparing the surface morphology by SEM, hydrophilicity, results of FTIR spectroscopy, and mechanical properties of the composite materials fabricated using different electrospinning times (20, 40, 60 min), the CPC surface constructed by electrospinning for 40 min was found to exhibit the most appropriate physical and chemical properties. Therefore, composite materials were built for further study by electrospinning for 40 min. The osteogenic capacity of the SF/PLGA/CPC, SF-DXM/PLGA/CPC, and SF-DXM/PLGA-rhBMP2/CPC scaffolds was evaluated by in vitro cell culture with rat bone marrow mesenchymal stem cells (BMSCs) and using a rat cranial defect repair model. ALP activity, calcium deposition levels, upregulation of osteogenic genes, and bone regeneration in skull defects in rats with SF-DXM/PLGA-rhBMP2/CPC implants were significantly higher than in rats implanted with the other scaffolds. These results suggest that drug-loaded coaxial nanofiber coatings prepared on a CPC surface can continuously and effectively release bioactive drugs and further stimulate osteogenesis. Therefore, the SF-DXM/PLGA-rhBMP2/CPC scaffolds prepared in this study demonstrated the most significant potential for the treatment of bone defects.
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Affiliation(s)
- Jihang Yao
- Norman Bethune First Hospital, Jilin University, Changchun 130021, P. R. China
| | - Zhewen Liu
- Norman Bethune First Hospital, Jilin University, Changchun 130021, P. R. China
| | - Wendi Ma
- Alan G. MacDiarmid Laboratory, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Wenying Dong
- Alan G. MacDiarmid Laboratory, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Yilong Wang
- Alan G. MacDiarmid Laboratory, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Haibo Zhang
- Alan G. MacDiarmid Laboratory, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Mei Zhang
- Alan G. MacDiarmid Laboratory, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Dahui Sun
- Norman Bethune First Hospital, Jilin University, Changchun 130021, P. R. China
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Brunnhofer G, Bergmann A, Klug A, Kraft M. Design and Validation of a Holographic Particle Counter. Sensors (Basel) 2019; 19:s19224899. [PMID: 31717587 PMCID: PMC6891361 DOI: 10.3390/s19224899] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 10/21/2019] [Accepted: 11/06/2019] [Indexed: 11/30/2022]
Abstract
An in-line holographic particle counter concept is presented and validated where multiple micrometer sized particles are detected in a three dimensional sampling volume, all at once. The proposed Particle Imaging Unit is capable of detecting holograms of particles which sizes are in the lower μm- range. The detection and counting principle is based on common image processing techniques using a customized Hough Transform with a result directly relating to the particle number concentration in the recorded sampling volume. The proposed counting unit is mounted ontop of a Condensation Nucleus Magnifier for comparison with a commercial TSI-3775 Condensation Particle Counter (CPC). The concept does not only allow for a precise in-situ determination of low particle number concentrations but also enables easy upscaling to higher particle densities (e.g., >30.000#ccm) through its linear expandability and option of cascading. The impact of coincidence at higher particle densities is shown and two coincidence correction approaches are presented where, at last, its analogy to the coincidence correction methods used in state-of-the-art CPCs is identified.
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Affiliation(s)
- Georg Brunnhofer
- Photonic Systems, CTR Carinthian Tech Research AG, 9524 Villach/St. Magdalen, Austria;
- Institute of Electronic Sensor Systems, Graz University of Technology, 8010 Graz, Austria;
- Nanophysics & Sensor Technologies, AVL List GmbH, 8020 Graz, Austria;
- Correspondence: ; Tel.: +43-316-787-6461
| | - Alexander Bergmann
- Institute of Electronic Sensor Systems, Graz University of Technology, 8010 Graz, Austria;
| | - Andreas Klug
- Nanophysics & Sensor Technologies, AVL List GmbH, 8020 Graz, Austria;
| | - Martin Kraft
- Photonic Systems, CTR Carinthian Tech Research AG, 9524 Villach/St. Magdalen, Austria;
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Papini D, Fant X, Ogawa H, Desban N, Samejima K, Feizbakhsh O, Askin B, Ly T, Earnshaw WC, Ruchaud S. Cell cycle-independent furrowing triggered by phosphomimetic mutations of the INCENP STD motif requires Plk1. J Cell Sci 2019; 132:jcs234401. [PMID: 31601613 PMCID: PMC7115952 DOI: 10.1242/jcs.234401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 09/27/2019] [Indexed: 11/20/2022] Open
Abstract
Timely and precise control of Aurora B kinase, the chromosomal passenger complex (CPC) catalytic subunit, is essential for accurate chromosome segregation and cytokinesis. Post-translational modifications of CPC subunits are directly involved in controlling Aurora B activity. Here, we identified a highly conserved acidic STD-rich motif of INCENP that is phosphorylated during mitosis in vivo and by Plk1 in vitro and is involved in controlling Aurora B activity. By using an INCENP conditional-knockout cell line, we show that impairing the phosphorylation status of this region disrupts chromosome congression and induces cytokinesis failure. In contrast, mimicking constitutive phosphorylation not only rescues cytokinesis but also induces ectopic furrows and contractile ring formation in a Plk1- and ROCK1-dependent manner independent of cell cycle and microtubule status. Our experiments identify the phospho-regulation of the INCENP STD motif as a novel mechanism that is key for chromosome alignment and cytokinesis.This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
- Diana Papini
- Wellcome Centre for Cell Biology, University of Edinburgh, Max Born Crescent, Edinburgh EH9 3BF, Scotland, UK
| | - Xavier Fant
- Wellcome Centre for Cell Biology, University of Edinburgh, Max Born Crescent, Edinburgh EH9 3BF, Scotland, UK
- Sorbonne Université/CNRS UMR8227, Station Biologique, Place Georges Teissier, CS90074, 29688 ROSCOFF cedex, France
| | - Hiromi Ogawa
- Wellcome Centre for Cell Biology, University of Edinburgh, Max Born Crescent, Edinburgh EH9 3BF, Scotland, UK
| | - Nathalie Desban
- Sorbonne Université/CNRS UMR8227, Station Biologique, Place Georges Teissier, CS90074, 29688 ROSCOFF cedex, France
| | - Kumiko Samejima
- Wellcome Centre for Cell Biology, University of Edinburgh, Max Born Crescent, Edinburgh EH9 3BF, Scotland, UK
| | - Omid Feizbakhsh
- Sorbonne Université/CNRS UMR8227, Station Biologique, Place Georges Teissier, CS90074, 29688 ROSCOFF cedex, France
| | - Bilge Askin
- Wellcome Centre for Cell Biology, University of Edinburgh, Max Born Crescent, Edinburgh EH9 3BF, Scotland, UK
| | - Tony Ly
- Wellcome Centre for Cell Biology, University of Edinburgh, Max Born Crescent, Edinburgh EH9 3BF, Scotland, UK
| | - William C. Earnshaw
- Wellcome Centre for Cell Biology, University of Edinburgh, Max Born Crescent, Edinburgh EH9 3BF, Scotland, UK
| | - Sandrine Ruchaud
- Wellcome Centre for Cell Biology, University of Edinburgh, Max Born Crescent, Edinburgh EH9 3BF, Scotland, UK
- Sorbonne Université/CNRS UMR8227, Station Biologique, Place Georges Teissier, CS90074, 29688 ROSCOFF cedex, France
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Hamid N, Telgi RL, Tirth A, Tandon V, Chandra S, Chaturvedi RK. Titanium Dioxide Nanoparticles and Cetylpyridinium Chloride Enriched Glass-Ionomer Restorative Cement: A Comparative Study Assessing Compressive Strength and Antibacterial Activity. J Clin Pediatr Dent 2019; 43:42-5. [PMID: 30289369 DOI: 10.17796/1053-4625-43.1.8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE To evaluate the addition of titanium dioxide (TiO2) nanoparticles and cetylpyridinium chloride (CPC) on the compressive strength and antibacterial activity of conventional glass-ionomer cement (GIC). STUDY DESIGN TiO2 nanoparticles enriched GIC was prepared by adding 3% TiO2 nanoparticles (w/w) into the powder component of conventional GIC. CPC containing GIC was developed by incorporating 1% CPC (w/w) into conventional GIC powder. Samples were segregated into three groups: GIC with 3% TiO2 nanoparticles, GIC with 1% CPC and unmodified conventional GIC. Compressive strength was assessed using the universal testing machine on cylindrical specimens made from each material. Antibacterial activity was assessed by measuring inhibition zones on Mitis Salivarius Bacitracin (MSB) agar inoculated with pure strain of Streptococcus mutans (S. mutans). RESULTS GIC containing TiO2 nanoparticles exhibited significantly greater compressive strength as compared with CPC and conventional GIC groups (P < 0.01). However, there was no significant difference between the compressive strengths of CPC and conventional GIC group (P >0.05). Antibacterial activity was significantly greater for TiO2 group than conventional GIC (P <0.05). CPC increased the antibacterial activity of conventional GIC, though not significantly. CONCLUSION The addition of 3% TiO2 nanoparticles improves the compressive strength of GIC as well as its antibacterial activity against S. mutans.
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Petsalaki E, Zachos G. Building bridges between chromosomes: novel insights into the abscission checkpoint. Cell Mol Life Sci 2019; 76:4291-4307. [PMID: 31302750 DOI: 10.1007/s00018-019-03224-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [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: 04/23/2019] [Revised: 06/19/2019] [Accepted: 07/05/2019] [Indexed: 12/20/2022]
Abstract
In the presence of chromatin bridges, mammalian cells delay completion of cytokinesis (abscission) to prevent chromatin breakage or tetraploidization by regression of the cleavage furrow. This abscission delay is called "the abscission checkpoint" and is dependent on Aurora B kinase. Furthermore, cells stabilize the narrow cytoplasmic canal between the two daughter cells until the DNA bridges are resolved. Impaired abscission checkpoint signaling or unstable intercellular canals can lead to accumulation of DNA damage, aneuploidy, or generation of polyploid cells which are associated with tumourigenesis. However, the molecular mechanisms involved have only recently started to emerge. In this review, we focus on the molecular pathways of the abscission checkpoint and describe newly identified triggers, Aurora B-regulators and effector proteins in abscission checkpoint signaling. We also describe mechanisms that control intercellular bridge stabilization, DNA bridge resolution, or abscission checkpoint silencing upon satisfaction, and discuss how abscission checkpoint proteins can be targeted to potentially improve cancer therapy.
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Affiliation(s)
- Eleni Petsalaki
- Department of Biology, University of Crete, Vassilika Vouton, 70013, Heraklion, Greece
| | - George Zachos
- Department of Biology, University of Crete, Vassilika Vouton, 70013, Heraklion, Greece.
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Malca-Garcia GR, Zagal D, Graham J, Nikolić D, Friesen JB, Lankin DC, Chen SN, Pauli GF. Dynamics of the isoflavone metabolome of traditional preparations of Trifolium pratense L. J Ethnopharmacol 2019; 238:111865. [PMID: 30981705 PMCID: PMC6549234 DOI: 10.1016/j.jep.2019.111865] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 03/10/2019] [Accepted: 04/03/2019] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The flowering tops of Trifolium pratense L., popularly known as red clover, are used in ethnic Western and Traditional Chinese medicine, in a variety of preparations, including infusions, decoctions and tinctures. Red clover has been reported to be helpful for treatment of menopausal symptoms, premenstrual syndrome, mastalgia, high cholesterol, and other conditions. AIMS OF THE STUDY The aims were to compare the chemical dynamics between traditional preparations of infusions, decoctions, and tinctures, as well as to identify the chemical variability over time in a traditional red clover tincture. For this purpose, eight isoflavone aglycones as well as two glucosides, ononin and sissotrin, were used as marker compounds. MATERIALS AND METHODS Quantitative NMR (qHNMR), LC-MS-MS, and UHPLC-UV methods were used to identify and quantitate the major phenolic compounds found within each extract. RESULTS Infusions, decoctions and tinctures were shown to produce different chemical profiles. Biochanin A and formononetin were identified and quantified in infusion, decoction, and tinctures of red clover. Both infusion and decoction showed higher concentrations of isoflavonoid glucosides, such as ononin and sissotrin, than 45% ethanolic tinctures. Dynamic chemical variability ("dynamic residual complexity") of the red clover tincture was observed over time (one-month), with biochanin A and formononetin reaching peak concentrations at around six days. CONCLUSIONS Insight was gained into why different formulation methods (infusions, decoctions, and tinctures) are traditionally used to treat different health conditions. Moreover, the outcomes show that tinctures, taken over a period of time, are dynamic medicinal formulations that allow for time-controlled release of bioactive compounds.
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Affiliation(s)
- Gonzalo R Malca-Garcia
- UIC/NIH Center for Botanical Dietary Supplements Research, Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL, 60612, USA
| | - Daniel Zagal
- UIC/NIH Center for Botanical Dietary Supplements Research, Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL, 60612, USA
| | - James Graham
- Center for Natural Product Technologies (CENAPT), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL, 60612, USA
| | - Dejan Nikolić
- UIC/NIH Center for Botanical Dietary Supplements Research, Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL, 60612, USA
| | - J Brent Friesen
- Center for Natural Product Technologies (CENAPT), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL, 60612, USA; Physical Sciences Department, Rosary College of Arts and Sciences, Dominican University, River Forest, IL, 60305, USA
| | - David C Lankin
- UIC/NIH Center for Botanical Dietary Supplements Research, Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL, 60612, USA; Center for Natural Product Technologies (CENAPT), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL, 60612, USA
| | - Shao-Nong Chen
- UIC/NIH Center for Botanical Dietary Supplements Research, Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL, 60612, USA; Center for Natural Product Technologies (CENAPT), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL, 60612, USA
| | - Guido F Pauli
- UIC/NIH Center for Botanical Dietary Supplements Research, Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL, 60612, USA; Center for Natural Product Technologies (CENAPT), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL, 60612, USA.
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Crisostomo V, Baez C, Abad JL, Sanchez B, Alvarez V, Rosado R, Gómez-Mauricio G, Gheysens O, Blanco-Blazquez V, Blazquez R, Torán JL, Casado JG, Aguilar S, Janssens S, Sánchez-Margallo FM, Rodriguez-Borlado L, Bernad A, Palacios I. Dose-dependent improvement of cardiac function in a swine model of acute myocardial infarction after intracoronary administration of allogeneic heart-derived cells. Stem Cell Res Ther 2019; 10:152. [PMID: 31151405 PMCID: PMC6544975 DOI: 10.1186/s13287-019-1237-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 04/15/2019] [Accepted: 04/16/2019] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND Allogeneic cardiac-derived progenitor cells (CPC) without immunosuppression could provide an effective ancillary therapy to improve cardiac function in reperfused myocardial infarction. We set out to perform a comprehensive preclinical feasibility and safety evaluation of porcine CPC (pCPC) in the infarcted porcine model, analyzing biodistribution and mid-term efficacy, as well as safety in healthy non-infarcted swine. METHODS The expression profile of several pCPC isolates was compared with humans using both FACS and RT-qPCR. ELISA was used to compare the functional secretome. One week after infarction, female swine received an intracoronary (IC) infusion of vehicle (CON), 25 × 106 pCPC (25 M), or 50 × 106 pCPC (50 M). Animals were followed up for 10 weeks using serial cardiac magnetic resonance imaging to assess functional and structural remodeling (left ventricular ejection fraction (LVEF), systolic and diastolic volumes, and myocardial salvage index). Statistical comparisons were performed using Kruskal-Wallis and Mann-Whitney U tests. Biodistribution analysis of 18F-FDG-labeled pCPC was also performed 4 h after infarction in a different subset of animals. RESULTS Phenotypic and functional characterization of pCPC revealed a gene expression profile comparable to their human counterparts as well as preliminary functional equivalence. Left ventricular functional and structural remodeling showed significantly increased LVEF 10 weeks after IC administration of 50 M pCPC, associated to the recovery of left ventricular volumes that returned to pre-infarction values (LVEF at 10 weeks was 42.1 ± 10.0% in CON, 46.5 ± 7.4% in 25 M, and 50.2 ± 4.9% in 50 M, p < 0.05). Infarct remodeling was also improved following pCPC infusion with a significantly higher myocardial salvage index in both treated groups (0.35 ± 0.20 in CON; 0.61 ± 0.20, p = 0.04, in 25 M; and 0.63 ± 0.17, p = 0.01, in 50 M). Biodistribution studies demonstrated cardiac tropism 4 h after IC administration, with substantial myocardial retention of pCPC-associated tracer activity (18% of labeled cells in the heart), and no obstruction of coronary flow, indicating their suitability as a cell therapy product. CONCLUSIONS IC administration of allogeneic pCPC at 1 week after acute myocardial infarction is feasible, safe, and associated with marked structural and functional benefit. The robust cardiac tropism of pCPC and the paracrine effects on left ventricle post-infarction remodeling established the preclinical bases for the CAREMI clinical trial (NCT02439398).
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Affiliation(s)
- Veronica Crisostomo
- Fundación Centro de Cirugía de Mínima Invasión Jesús Usón, Carretera N-521, km 41, 10071, Cáceres, Spain. .,CIBERCV, Instituto de Salud Carlos III. C/Monforte de Lemos 3-5, Pabellón 11. Planta 0, 28029, Madrid, Spain.
| | - Claudia Baez
- Fundación Centro de Cirugía de Mínima Invasión Jesús Usón, Carretera N-521, km 41, 10071, Cáceres, Spain.,CIBERCV, Instituto de Salud Carlos III. C/Monforte de Lemos 3-5, Pabellón 11. Planta 0, 28029, Madrid, Spain
| | - José Luis Abad
- Coretherapix S.L.U./Tigenix Group C/Marconi 1, 28076, Tres Cantos, Madrid, Spain
| | - Belén Sanchez
- Coretherapix S.L.U./Tigenix Group C/Marconi 1, 28076, Tres Cantos, Madrid, Spain
| | - Virginia Alvarez
- Coretherapix S.L.U./Tigenix Group C/Marconi 1, 28076, Tres Cantos, Madrid, Spain
| | - Rosalba Rosado
- Coretherapix S.L.U./Tigenix Group C/Marconi 1, 28076, Tres Cantos, Madrid, Spain
| | - Guadalupe Gómez-Mauricio
- Fundación Centro de Cirugía de Mínima Invasión Jesús Usón, Carretera N-521, km 41, 10071, Cáceres, Spain
| | - Olivier Gheysens
- Department of Cardiovascular Medicine, UZ Leuven Campus Gasthuisberg, Herestraat 49, B-3000, Leuven, Belgium
| | - Virginia Blanco-Blazquez
- Fundación Centro de Cirugía de Mínima Invasión Jesús Usón, Carretera N-521, km 41, 10071, Cáceres, Spain.,CIBERCV, Instituto de Salud Carlos III. C/Monforte de Lemos 3-5, Pabellón 11. Planta 0, 28029, Madrid, Spain
| | - Rebeca Blazquez
- Fundación Centro de Cirugía de Mínima Invasión Jesús Usón, Carretera N-521, km 41, 10071, Cáceres, Spain.,CIBERCV, Instituto de Salud Carlos III. C/Monforte de Lemos 3-5, Pabellón 11. Planta 0, 28029, Madrid, Spain
| | - José Luis Torán
- Department of Immunology and Oncology, Spanish National Center for Biotechnology (CNB-CSIC), C/Darwin, 3 (Campus UAM Cantoblanco), 28049, Madrid, Spain
| | - Javier G Casado
- Fundación Centro de Cirugía de Mínima Invasión Jesús Usón, Carretera N-521, km 41, 10071, Cáceres, Spain.,CIBERCV, Instituto de Salud Carlos III. C/Monforte de Lemos 3-5, Pabellón 11. Planta 0, 28029, Madrid, Spain
| | - Susana Aguilar
- Department of Immunology and Oncology, Spanish National Center for Biotechnology (CNB-CSIC), C/Darwin, 3 (Campus UAM Cantoblanco), 28049, Madrid, Spain
| | - Stefan Janssens
- Department of Cardiovascular Medicine, UZ Leuven Campus Gasthuisberg, Herestraat 49, B-3000, Leuven, Belgium
| | - Francisco M Sánchez-Margallo
- Fundación Centro de Cirugía de Mínima Invasión Jesús Usón, Carretera N-521, km 41, 10071, Cáceres, Spain.,CIBERCV, Instituto de Salud Carlos III. C/Monforte de Lemos 3-5, Pabellón 11. Planta 0, 28029, Madrid, Spain
| | | | - Antonio Bernad
- Department of Immunology and Oncology, Spanish National Center for Biotechnology (CNB-CSIC), C/Darwin, 3 (Campus UAM Cantoblanco), 28049, Madrid, Spain
| | - Itziar Palacios
- Coretherapix S.L.U./Tigenix Group C/Marconi 1, 28076, Tres Cantos, Madrid, Spain.
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Kimura Y, Ushiwatari T, Suyama A, Tominaga-Wada R, Wada T, Maruyama-Nakashita A. Contribution of Root Hair Development to Sulfate Uptake in Arabidopsis. Plants (Basel) 2019; 8:E106. [PMID: 31010206 PMCID: PMC6524346 DOI: 10.3390/plants8040106] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 04/15/2019] [Accepted: 04/17/2019] [Indexed: 11/30/2022]
Abstract
Root hairs often contribute to nutrient uptake from environments, but the contribution varies among nutrients. In Arabidopsis, two high-affinity sulfate transporters, SULTR1;1 and SULTR1;2, are responsible for sulfate uptake by roots. Their increased expression under sulfur deficiency (-S) stimulates sulfate uptake. Inspired by the higher and lower expression, respectively, of SULTR1;1 in mutants with more (werwolf [wer]) and fewer (caprice [cpc]) root hairs, we examined the contribution of root hairs to sulfate uptake. Sulfate uptake rates were similar among plant lines under both sulfur sufficiency (+S) and -S. Under -S, the expression of SULTR1;1 and SULTR1;2 was negatively correlated with the number of root hairs. These results suggest that both -S-induced SULTR expression and sulfate uptake rates were independent of the number of root hairs. In addition, we observed (1) a negative correlation between primary root lengths and number of root hairs and (2) a greater number of root hairs under -S than under +S. These observations suggested that under both +S and -S, sulfate uptake was influenced by the root biomass rather than the number of root hairs.
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Affiliation(s)
- Yuki Kimura
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Tsukasa Ushiwatari
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Akiko Suyama
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Rumi Tominaga-Wada
- Graduate School of Biosphere Sciences, Hiroshima University, 1-4-4 Kagamiyama, Higashi Hiroshima, Hiroshima 739-8528, Japan.
| | - Takuji Wada
- Graduate School of Biosphere Sciences, Hiroshima University, 1-4-4 Kagamiyama, Higashi Hiroshima, Hiroshima 739-8528, Japan.
| | - Akiko Maruyama-Nakashita
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
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Cabrera-Reina A, Miralles-Cuevas S, Rivas G, Sánchez Pérez JA. Comparison of different detoxification pilot plants for the treatment of industrial wastewater by solar photo-Fenton: Are raceway pond reactors a feasible option? Sci Total Environ 2019; 648:601-608. [PMID: 30121537 DOI: 10.1016/j.scitotenv.2018.08.143] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 07/24/2018] [Accepted: 08/10/2018] [Indexed: 06/08/2023]
Abstract
This paper represents a first approach in the study of photoreactor selection to treat industrial wastewater using solar photo-Fenton. In this context, simulated textile industry effluent containing a mixture of four dyes at different initial dissolved organic carbon (DOC) concentrations (45, 90, 180 and 270 mg/L) was treated by using three different solar reactor geometries: (i) tubular (5 cm diameter) provided with compound parabolic collector (ii) tubular (5 cm diameter) provided with flat collector and (iii) open channels forming raceway ponds with two liquid depths (5 and 15 cm). For comparison purposes, mineralisation percentages over 75% and chronic toxicity reduction were set as treatment goals. Regardless of the initial DOC concentration, negligible differences in terms of treatment time and hydrogen peroxide consumptions were found between the flat collector and compound parabolic collector photoreactors. Conversely, the treatment in the raceway pond reactors always resulted in higher values. In spite of this, when the photoreactors were compared in terms of treatment capacity (mg of DOC removed/m2 min) the raceway pond reactor at 15 cm of liquid depth presented the best results, with values as much as two or three times higher than those of the tubular reactors, except for the wastewater with 270 mg of DOC/L for which the raceway pond reactor at 5 cm liquid depth became the best option. When the treatment capacity is modified to include the photoreactor investment (mg of DOC removed/€ m2) the differences between the raceway pond reactor at both liquid depths and the photoreactors with solar collectors increased by as much as two orders of magnitude, which demonstrates the potential application of the former for the treatment of industrial wastewater by solar photo-Fenton.
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Affiliation(s)
- A Cabrera-Reina
- University School of Mechanical Engineering (EUDIM), University of Tarapacá, Avda. General Velásquez 1775, Arica, Chile.
| | - S Miralles-Cuevas
- University School of Mechanical Engineering (EUDIM), University of Tarapacá, Avda. General Velásquez 1775, Arica, Chile
| | - G Rivas
- Chemical Engineering Department, University of Almería, Ctra. Sacramento s/n, Almería, Spain; Centro de Investigaciones de Energía Solar (CIESOL), Joint centre University of Almería - CIEMAT, Ctra. Sacramento s/n, Almería, Spain
| | - J A Sánchez Pérez
- Chemical Engineering Department, University of Almería, Ctra. Sacramento s/n, Almería, Spain; Centro de Investigaciones de Energía Solar (CIESOL), Joint centre University of Almería - CIEMAT, Ctra. Sacramento s/n, Almería, Spain
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Abstract
Accurate chromosome segregation is a fundamental process in cell biology. During mitosis, chromosomes are segregated into daughter cells through interactions between centromeres and microtubules in the mitotic spindle. Centromere domains have evolved to nucleate formation of the kinetochore, which is essential for establishing connections between chromosomal DNA and microtubules during mitosis. Centromeres are typically formed on highly repetitive DNA that is not conserved in sequence or size among organisms and can differ substantially between individuals within the same organism. However, transcription of repetitive DNA has emerged as a highly conserved property of the centromere. Recent work has shown that both the topological effect of transcription on chromatin and the nascent noncoding RNAs contribute to multiple aspects of centromere function. In this review, we discuss the fundamental aspects of centromere transcription, i.e., its dual role in chromatin remodeling/CENP-A deposition and kinetochore assembly during mitosis, from a cell cycle perspective.
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Affiliation(s)
- Carlos Perea-Resa
- Department of Molecular Biology, Massachusetts General Hospital, Boston, Massachusetts, USA
- Department of Genetics, Harvard Medical School, Boston, Massachusetts, USA
| | - Michael D Blower
- Department of Molecular Biology, Massachusetts General Hospital, Boston, Massachusetts, USA
- Department of Genetics, Harvard Medical School, Boston, Massachusetts, USA
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Duerr ER, Sayed MS, Moster S, Holley T, Peiyao J, Vanner EA, Lee RK. Transscleral Diode Laser Cyclophotocoagulation: A Comparison of Slow Coagulation and Standard Coagulation Techniques. Ophthalmol Glaucoma 2018; 1:115-122. [PMID: 32632402 PMCID: PMC7337205 DOI: 10.1016/j.ogla.2018.08.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
PURPOSE To compare the outcomes of standard pop-titrated transscleral cyclophotocoagulation (TSCPC) and slow-coagulation TSCPC in the treatment of glaucoma. DESIGN Retrospective case series. SUBJECTS This study included 78 eyes with glaucoma of any type or stage that underwent TSCPC as part of their treatment course. METHODS This study compared 52 eyes treated with slow coagulation TSCPC to 26 eyes treated with standard pop-titrated TSCPC. Patient demographics, treatment course, surgical techniques, settings and outcomes were assessed. MAIN OUTCOME MEASURES The main outcome measures were visual acuity (VA), intraocular pressure (IOP) and post-surgical complications. RESULTS The initial LogMAR VA was 1.94 (0.73) [mean (SD)] in the slow coagulation TSCPC group and 1.71 (0.90) in the standard TSCPC group (p=0.507). Initial IOP was 37 (13) mm Hg in the slow coagulation group and 39 (13) mm Hg in the standard group (p=0.297). The follow-up periods were 16.36 months and 24.68 months for the slow coagulation and standard groups (p=0.124). VA remained better than light-perception in 71.1% of slow coagulation treated patients and 65.0% of standard TSCPC treated patients (p=0.599). IOP remained below 20 mm Hg in 46% of slow coagulation treated patients and 44% of standard TSCPC treated patients (p=0.870). The mean number of complications was higher in the standard group [1.46 (1.24)] versus the slow coagulation group [0.62 (0.75)] (p=0.002). The incidence of the need for a second procedure (slow coagulation- 28.8%, standard- 23.1%, p=0.588) and maximum number of medications needed to control IOP postoperatively (p=0.771) were similar between the two groups. CONCLUSIONS In this case series, slow coagulation TSCPC and standard pop-titrated TSCPC resulted in similar VA and IOP outcomes in the treatment of glaucomatous eyes. The complication profiles of the techniques were also comparable, although standard TSCPC had a higher incidence of prolonged inflammation postoperatively. This study suggests that slow coagulation TSCPC may achieve equivalent control of IOP while reducing the incidence of prolonged post-operative inflammation-a feared complication of TSCPC-when compared to standard "pop-titrated" TSCPC.
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Affiliation(s)
- Eric Rh Duerr
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Mohamed S Sayed
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Stephen Moster
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Timothy Holley
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Jin Peiyao
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Elizabeth A Vanner
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Richard K Lee
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA
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Pulido D, Rebollido-Rios R, Valle J, Andreu D, Boix E, Torrent M. Structural similarities in the CPC clip motif explain peptide-binding promiscuity between glycosaminoglycans and lipopolysaccharides. J R Soc Interface 2018; 14:rsif.2017.0423. [PMID: 29187635 DOI: 10.1098/rsif.2017.0423] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 06/08/2017] [Accepted: 10/30/2017] [Indexed: 11/12/2022] Open
Abstract
Lipopolysaccharides (LPSs) and glycosaminoglycans (GAGs) are polymeric structures containing negatively charged disaccharide units that bind to specialized proteins and peptides in the human body and control fundamental processes such as inflammation and coagulation. Surprisingly, some proteins can bind both LPSs and GAGs with high affinity, suggesting that a cross-communication between these two pathways can occur. Here, we explore whether GAGs and LPSs can share common binding sites in proteins and what are the structural determinants of this binding. We found that the LPS-binding peptide YI12WF, derived from protein FhuA, can bind both heparin and E. coli LPS with high affinity. Most interestingly, mutations decreasing heparin binding in the peptide also reduce LPS affinity. We show that such mutations involve the CPC clip motif in the peptide, a small three-dimensional signature required for heparin binding. Overall, we conclude that negatively charged polysaccharide-containing polymers such as GAGs and LPSs can compete for similar binding sites in proteins, and that the CPC clip motif is essential to bind both ligands. Our results provide a structural framework to explain why these polymers can cross-interact with the same proteins and peptides and thus contribute to the regulation of apparently unrelated processes in the body.
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Affiliation(s)
- David Pulido
- Department of Biochemistry and Molecular Biology, Biosciences Faculty, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain.,Department of Life Sciences, Imperial College London, Sir Ernst Chain Building, London SW7 2AZ, UK
| | - Rocío Rebollido-Rios
- Microbiology Service, Vall d'Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona, Passeig Vall d'Hebron 119-129, 08035 Barcelona, Spain
| | - Javier Valle
- Department of Experimental and Health Sciences, Universitat Pompeu Fabra, Dr. Aiguader 88, 08003 Barcelona, Spain
| | - David Andreu
- Department of Experimental and Health Sciences, Universitat Pompeu Fabra, Dr. Aiguader 88, 08003 Barcelona, Spain
| | - Ester Boix
- Department of Biochemistry and Molecular Biology, Biosciences Faculty, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain
| | - Marc Torrent
- Department of Biochemistry and Molecular Biology, Biosciences Faculty, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain .,Microbiology Service, Vall d'Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona, Passeig Vall d'Hebron 119-129, 08035 Barcelona, Spain
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Platani M, Samejima I, Samejima K, Kanemaki MT, Earnshaw WC. Seh1 targets GATOR2 and Nup153 to mitotic chromosomes. J Cell Sci 2018; 131:jcs.213140. [PMID: 29618633 PMCID: PMC5992584 DOI: 10.1242/jcs.213140] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 03/23/2018] [Indexed: 12/27/2022] Open
Abstract
In metazoa, the Nup107 complex (also known as the nucleoporin Y-complex) plays a major role in formation of the nuclear pore complex in interphase and is localised to kinetochores in mitosis. The Nup107 complex shares a single highly conserved subunit, Seh1 (also known as SEH1L in mammals) with the GATOR2 complex, an essential activator of mTORC1 kinase. mTORC1/GATOR2 has a central role in the coordination of cell growth and proliferation. Here, we use chemical genetics and quantitative chromosome proteomics to study the role of the Seh1 protein in mitosis. Surprisingly, Seh1 is not required for the association of the Nup107 complex with mitotic chromosomes, but it is essential for the association of both the GATOR2 complex and nucleoporin Nup153 with mitotic chromosomes. Our analysis also reveals a role for Seh1 at human centromeres, where it is required for efficient localisation of the chromosomal passenger complex (CPC). Furthermore, this analysis detects a functional interaction between the Nup107 complex and the small kinetochore protein SKAP (also known as KNSTRN). Highlighted Article: The nucleoporin Seh1 is essential for the association of both the GATOR2 complex and the nucleoporin Nup153, but not the Nup107 complex, with mitotic chromosomes.
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Affiliation(s)
- Melpomeni Platani
- Wellcome Trust Centre for Cell Biology, Institute of Cell Biology, University of Edinburgh, Edinburgh EH9 3BF, UK
| | - Itaru Samejima
- Wellcome Trust Centre for Cell Biology, Institute of Cell Biology, University of Edinburgh, Edinburgh EH9 3BF, UK
| | - Kumiko Samejima
- Wellcome Trust Centre for Cell Biology, Institute of Cell Biology, University of Edinburgh, Edinburgh EH9 3BF, UK
| | - Masato T Kanemaki
- Division of Molecular Cell Engineering, National Institute of Genetics, ROIS, and Department of Genetics, SOKENDAI, Yata 1111, Mishima, Shizuoka 411-8540, Japan
| | - William C Earnshaw
- Wellcome Trust Centre for Cell Biology, Institute of Cell Biology, University of Edinburgh, Edinburgh EH9 3BF, UK
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Abstract
It has been demonstrated that cardiac progenitor cells (CPCs) represent a more effective cell-based therapy for treatment of myocardial infarction. Unfortunately, their therapeutic application is limited by low yield of cell harvesting, declining quality and quantity during the ageing process, and the need for highly invasive heart biopsy. Therefore, there is an emerging interest in generating CPC-like stem cells from somatic cells via somatic reprogramming. This novel approach would provide an unlimited source of stem cells with cardiac differentiation potential. Here we would firstly discuss the different types of CPC and their importance in stem cell therapy for treatment of myocardial infarction; secondly, the necessity of generating induced CPC from somatic cells via somatic reprogramming; and finally the current progress of somatic reprogramming in cardiac cells, especially induced CPC generation.
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Affiliation(s)
- Jianyong Xu
- Institute of Biological Therapy, Shenzhen University, Shenzhen, China.,Department of Pathogen Biology and Immunology, Shenzhen University School of Medicine, Shenzhen, China.,Shenzhen City Shenzhen University Immunodiagnostic Technology Platform, Shenzhen, China
| | - Wei Lian
- Institute of Biological Therapy, Shenzhen University, Shenzhen, China.,Department of Pathogen Biology and Immunology, Shenzhen University School of Medicine, Shenzhen, China.,Shenzhen City Shenzhen University Immunodiagnostic Technology Platform, Shenzhen, China
| | - Lingyun Li
- Institute of Biological Therapy, Shenzhen University, Shenzhen, China.,Department of Pathogen Biology and Immunology, Shenzhen University School of Medicine, Shenzhen, China.,Shenzhen City Shenzhen University Immunodiagnostic Technology Platform, Shenzhen, China
| | - Zhong Huang
- Institute of Biological Therapy, Shenzhen University, Shenzhen, China.,Department of Pathogen Biology and Immunology, Shenzhen University School of Medicine, Shenzhen, China.,Shenzhen City Shenzhen University Immunodiagnostic Technology Platform, Shenzhen, China
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Schnaubelt S, Sulzgruber P, Menger J, Skhirtladze-Dworschak K, Sterz F, Dworschak M. Regional cerebral oxygen saturation during cardiopulmonary resuscitation as a predictor of return of spontaneous circulation and favourable neurological outcome - A review of the current literature. Resuscitation 2018; 125:39-47. [PMID: 29410191 DOI: 10.1016/j.resuscitation.2018.01.028] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [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: 10/18/2017] [Revised: 01/04/2018] [Accepted: 01/21/2018] [Indexed: 10/18/2022]
Abstract
INTRODUCTION Regional cerebral oxygen saturation (rSO2) can be measured non-invasively even at no- or low-flow states. It thus allows assessment of brain oxygenation during CPR. Certain rSO2 values had been associated with return of spontaneous circulation (ROSC) and neurological outcome in the past. Clear-cut thresholds for the prediction of beneficial outcome, however, are still lacking. METHODS We conducted a database search to extract all available investigations on rSO2 measurement during CPR. Mean, median, and ΔrSO2 values were either taken from the studies or calculated. Thresholds for the outcome "ROSC" and "neurological outcome" were sought. RESULTS We retrieved 26 publications for the final review. The averaged mean rSO2 for patients achieving ROSC was 41 ± 12% vs. 30 ± 12% for non-ROSC (p = .009). ROSC was not observed when mean rSO2 remained <26%. In ROSC patients, ΔrSO2 was 22 ± 16% vs. 7 ± 10% in non-ROSC patients (p = .009). A rSO2 threshold of 36% predicted ROSC with a sensitivity of 67% and specificity of 69% while ΔrSO2 of 7% showed a sensitivity of 100% and a specificity of 86% (AUC = 0.733 and 0.893, respectively). Mean rSO2 of 47 ± 11% was associated with favourable and 38 ± 12% with poor neurological outcome. There was, however, a great overlap between groups due to scarce data. CONCLUSION Higher rSO2 consistently correlated with increased rates of ROSC. The discriminatory power of rSO2 to prognosticate favourable neurological outcome remains unclear. Measuring rSO2 during CPR could potentially facilitate clinical decision-making.
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Affiliation(s)
- S Schnaubelt
- Division of Cardiothoracic and Vascular Anaesthesia and Intensive Care Medicine, Department of Anaesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna General Hospital, Austria; Department of Emergency Medicine, Medical University of Vienna, Vienna General Hospital, Austria
| | - P Sulzgruber
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, Vienna General Hospital, Austria
| | - J Menger
- Division of Cardiothoracic and Vascular Anaesthesia and Intensive Care Medicine, Department of Anaesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna General Hospital, Austria
| | - K Skhirtladze-Dworschak
- Division of Cardiothoracic and Vascular Anaesthesia and Intensive Care Medicine, Department of Anaesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna General Hospital, Austria
| | - F Sterz
- Department of Emergency Medicine, Medical University of Vienna, Vienna General Hospital, Austria
| | - M Dworschak
- Division of Cardiothoracic and Vascular Anaesthesia and Intensive Care Medicine, Department of Anaesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna General Hospital, Austria.
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Kukula-Koch W, Grabarska A, Łuszczki J, Czernicka L, Nowosadzka E, Gumbarewicz E, Jarząb A, Audo G, Upadhyay S, Głowniak K, Stepulak A. Superior anticancer activity is demonstrated by total extract of Curcuma longa L. as opposed to individual curcuminoids separated by centrifugal partition chromatography. Phytother Res 2018; 32:933-942. [PMID: 29368356 DOI: 10.1002/ptr.6035] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [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: 06/24/2017] [Revised: 12/20/2017] [Accepted: 12/21/2017] [Indexed: 02/01/2023]
Abstract
Three curcuminoids: bisdemethoxycurcumin, demethoxycurcumin, and curcumin from turmeric were successfully separated by a high capacity solvent system composed of heptane: chloroform: methanol: water mixture (5: 6: 3: 2 v/v/v/v) tailored for centrifugal partition chromatographs at K-values of 0.504, 1.057, 1.644, respectively. These three ferulic acid derivatives obtained at a purity rate exceeding 95% were analysed by an HPLC-MS spectrometer. Turmeric extract inhibited the proliferation/viability of A549 human lung cancer, HT29 colon cancer, and T98G glioblastoma cell lines in (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide) tetrazolium reduction assay (MTT). Single curcuminoids significantly decreased the viability/proliferation of lung cancer cells in a dose-dependent manner. However, total extract displayed the superior anticancer activity in the investigated cell lines. Crude extract in combination with cisplatin augmented the decrease in the viability of cancer cells compared with single compound treatment in A549 lung cancer cells. Total extract of Curcuma longa could be regarded as being more effective against lung cancer cells in vitro than its separated compounds.
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Affiliation(s)
- Wirginia Kukula-Koch
- Department of Pharmacognosy with Medicinal Plant Unit, Medical University of Lublin, 1 Chodźki, 20-093, Lublin, Poland
| | - Aneta Grabarska
- Department of Biochemistry and Molecular Biology, Medical University of Lublin, 1 Chodźki, 20-093, Lublin, Poland
| | - Jarogniew Łuszczki
- Department of Pathophysiology, Medical University of Lublin, 8 Jaczewskiego, 20-090, Lublin, Poland
| | - Lidia Czernicka
- Department of Food and Nutrition, Medical University of Lublin, 4a Chodźki., 20-093, Lublin, Poland
| | - Ewa Nowosadzka
- Department of Biochemistry and Molecular Biology, Medical University of Lublin, 1 Chodźki, 20-093, Lublin, Poland
| | - Ewelina Gumbarewicz
- Department of Biochemistry and Molecular Biology, Medical University of Lublin, 1 Chodźki, 20-093, Lublin, Poland
| | - Agata Jarząb
- Department of Biochemistry and Molecular Biology, Medical University of Lublin, 1 Chodźki, 20-093, Lublin, Poland
| | - Gregoire Audo
- Armen Instrument Application Laboratory, ZI Kermelin, 56890, Saint Avé, France
| | - Shakti Upadhyay
- Immunocon Biotech Sp. z o. o., 39A Zana, 20-601, Lublin, Poland
| | - Kazimierz Głowniak
- Department of Pharmacognosy with Medicinal Plant Unit, Medical University of Lublin, 1 Chodźki, 20-093, Lublin, Poland.,Department of Cosmetology, University of Information Technology and Management, 2 Sucharskiego, 35-225, Rzeszów, Poland
| | - Andrzej Stepulak
- Department of Biochemistry and Molecular Biology, Medical University of Lublin, 1 Chodźki, 20-093, Lublin, Poland
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Hayashi N, Tetsumura T, Sawa S, Wada T, Tominaga-Wada R. CLE14 peptide signaling in Arabidopsis root hair cell fate determination. Plant Biotechnol (Tokyo) 2018; 35:17-22. [PMID: 31275033 PMCID: PMC6543736 DOI: 10.5511/plantbiotechnology.18.0122a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 01/22/2018] [Indexed: 05/11/2023]
Abstract
Morphological adjustment is a critical strategy for the survival of plant species in various environments. The CLE (CLAVATA3/EMBRYO SURROUNDING REGION) family of plant polypeptides is known to play important roles in various physiological and developmental processes and the relevant signaling pathways are conserved in diverse land plants. Previously, it has been suggested that overexpression of CLE14 promotes root hair cell differentiation in Arabidopsis roots. To clarify this suggested function of CLE14 peptide on root hair induction, we examined the effect of synthetic CLE14 peptide on Arabidopsis root hair development. Consistent with the results of previous overexpression analyses of CLE14, we demonstrated that application of synthetic CLE14 peptide induced excess root hair formation on CLE14-treated Arabidopsis roots. In addition, CLE14 reduced the expression of the non-hair cell fate determinant gene, GLABRA2. Our results thus indicate that CLE14 can activate the transcriptional regulatory cascade of root hair formation.
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Affiliation(s)
- Naoto Hayashi
- Graduate School of Biosphere Sciences, Hiroshima University, 1-4-4 Kagamiyama, Higashi-Hiroshima 739-8528, Japan
| | - Takuya Tetsumura
- Department of Agricultural and Environmental Sciences, Faculty of Agriculture, University of Miyazaki, 1-1 Gakuen Kibanadai-Nishi, Miyazaki 889-2192, Japan
| | - Shinichiro Sawa
- Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Kumamoto 860-8555, Japan
| | - Takuji Wada
- Graduate School of Biosphere Sciences, Hiroshima University, 1-4-4 Kagamiyama, Higashi-Hiroshima 739-8528, Japan
| | - Rumi Tominaga-Wada
- Graduate School of Biosphere Sciences, Hiroshima University, 1-4-4 Kagamiyama, Higashi-Hiroshima 739-8528, Japan
- E-mail: Tel: +81-82-424-7966 Fax: +81-82-424-7966
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Jørgensen RB, Kero IT. Real-Time Measurements and Characterization of Airborne Particulate Matter from a Primary Silicon Carbide Production Plant. Int J Environ Res Public Health 2017; 14:ijerph14121611. [PMID: 29261158 PMCID: PMC5751027 DOI: 10.3390/ijerph14121611] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 12/07/2017] [Accepted: 12/15/2017] [Indexed: 11/18/2022]
Abstract
Airborne particulate matter in the silicon carbide (SiC) industry is a known health hazard. The aims of this study were to elucidate whether the particulate matter generated inside the Acheson furnace during active operation is representative of the overall particulate matter in the furnace hall, and whether the Acheson furnaces are the main sources of ultrafine particles (UFP) in primary SiC production. The number concentration of ultrafine particles was evaluated using an Electrical Low Pressure Impactor (ELPITM, Dekati Ltd., Tampere, Finland), a Fast Mobility Particle Sizer (FMPSTM, TSI, Shoreview, MN, USA) and a Condensation Particle Counter (CPC, TSI, Shoreview, MN, USA). The results are discussed in terms of particle number concentration, particle size distribution and are also characterized by means of electron microscopy (TEM/SEM). Two locations were investigated; the industrial Acheson process furnace hall and a pilot furnace hall; both of which represent an active operating furnace. The geometric mean of the particle number concentration in the Acheson process furnace hall was 7.7 × 104 particles/cm3 for the UFP fraction and 1.0 × 105 particles/cm3 for the submicrometre fraction. Particulate matter collected at the two sites was analysed by electron microscopy. The PM from the Acheson process furnace hall is dominated by carbonaceous particles while the samples collected near the pilot furnace are primarily rich in silicon.
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Affiliation(s)
- Rikke Bramming Jørgensen
- Department of Industrial Economics and Technology Management, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway.
| | - Ida Teresia Kero
- Department of Industrial Process Technology, SINTEF Materials and Chemistry, P.O. Box. 4760, NO-7465 Trondheim, Norway.
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