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Yang C, Zhu Q, Chen Y, Ji K, Li S, Wu Q, Pan Q, Li J. Review of the Protective Mechanism of Curcumin on Cardiovascular Disease. Drug Des Devel Ther 2024; 18:165-192. [PMID: 38312990 PMCID: PMC10838105 DOI: 10.2147/dddt.s445555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 01/16/2024] [Indexed: 02/06/2024] Open
Abstract
Cardiovascular diseases (CVDs) are the most common cause of death worldwide and has been the focus of research in the medical community. Curcumin is a polyphenolic compound extracted from the root of turmeric. Curcumin has been shown to have a variety of pharmacological properties over the past decades. Curcumin can significantly protect cardiomyocyte injury after ischemia and hypoxia, inhibit myocardial hypertrophy and fibrosis, improve ventricular remodeling, reduce drug-induced myocardial injury, improve diabetic cardiomyopathy(DCM), alleviate vascular endothelial dysfunction, inhibit foam cell formation, and reduce vascular smooth muscle cells(VSMCs) proliferation. Clinical studies have shown that curcumin has a protective effect on blood vessels. Toxicological studies have shown that curcumin is safe. But high doses of curcumin also have some side effects, such as liver damage and defects in embryonic heart development. This article reviews the mechanism of curcumin intervention on CVDs in recent years, in order to provide reference for the development of new drugs in the future.
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Affiliation(s)
- Chunkun Yang
- Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, People's Republic of China
| | - Qinwei Zhu
- Department of Emergency, Weifang Hospital of Traditional Chinese Medicine, Weifang, Shandong, People's Republic of China
| | - Yanbo Chen
- Department of Arrhythmia, Weifang People's Hospital, Weifang, Shandong, People's Republic of China
| | - Kui Ji
- Department of Emergency, Weifang Hospital of Traditional Chinese Medicine, Weifang, Shandong, People's Republic of China
| | - Shuanghong Li
- Department of Emergency, Weifang Hospital of Traditional Chinese Medicine, Weifang, Shandong, People's Republic of China
| | - Qian Wu
- Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, People's Republic of China
| | - Qingquan Pan
- Department of Emergency, Weifang Hospital of Traditional Chinese Medicine, Weifang, Shandong, People's Republic of China
| | - Jun Li
- Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, People's Republic of China
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252
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Li X, Xu M, Yan Z, Xia F, Li S, Zhang Y, Xing Z, Guan L. Deep convolutional network-based chest radiographs screening model for pneumoconiosis. Front Med (Lausanne) 2024; 11:1290729. [PMID: 38348336 PMCID: PMC10859417 DOI: 10.3389/fmed.2024.1290729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 01/08/2024] [Indexed: 02/15/2024] Open
Abstract
Background Pneumoconiosis is the most important occupational disease all over the world, with high prevalence and mortality. At present, the monitoring of workers exposed to dust and the diagnosis of pneumoconiosis rely on manual interpretation of chest radiographs, which is subjective and low efficiency. With the development of artificial intelligence technology, a more objective and efficient computer aided system for pneumoconiosis diagnosis can be realized. Therefore, the present study reported a novel deep learning (DL) artificial intelligence (AI) system for detecting pneumoconiosis in digital frontal chest radiographs, based on which we aimed to provide references for radiologists. Methods We annotated 49,872 chest radiographs from patients with pneumoconiosis and workers exposed to dust using a self-developed tool. Next, we used the labeled images to train a convolutional neural network (CNN) algorithm developed for pneumoconiosis screening. Finally, the performance of the trained pneumoconiosis screening model was validated using a validation set containing 495 chest radiographs. Results Approximately, 51% (25,435/49,872) of the chest radiographs were labeled as normal. Pneumoconiosis was detected in 49% (24,437/49,872) of the labeled radiographs, among which category-1, category-2, and category-3 pneumoconiosis accounted for 53.1% (12,967/24,437), 20.4% (4,987/24,437), and 26.5% (6,483/24,437) of the patients, respectively. The CNN DL algorithm was trained using these data. The validation set of 495 digital radiography chest radiographs included 261 cases of pneumoconiosis and 234 cases of non-pneumoconiosis. As a result, the accuracy of the AI system for pneumoconiosis identification was 95%, the area under the curve was 94.7%, and the sensitivity was 100%. Conclusion DL algorithm based on CNN helped screen pneumoconiosis in the chest radiographs with high performance; thus, it could be suitable for diagnosing pneumoconiosis automatically and improve the efficiency of radiologists.
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Affiliation(s)
- Xiao Li
- Peking University Third Hospital, Beijing, China
| | - Ming Xu
- Beijing Tianming Innovation Data Technology Co., Ltd., Beijing, China
| | - Ziye Yan
- Beijing Tianming Innovation Data Technology Co., Ltd., Beijing, China
| | - Fanbo Xia
- Beijing Tianming Innovation Data Technology Co., Ltd., Beijing, China
| | - Shuqiang Li
- Peking University Third Hospital, Beijing, China
| | - Yanlin Zhang
- Peking University Third Hospital, Beijing, China
| | | | - Li Guan
- Peking University Third Hospital, Beijing, China
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253
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Rakhmatulin I, Dao MS, Nassibi A, Mandic D. Exploring Convolutional Neural Network Architectures for EEG Feature Extraction. SENSORS (BASEL, SWITZERLAND) 2024; 24:877. [PMID: 38339594 PMCID: PMC10856895 DOI: 10.3390/s24030877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/12/2024] [Accepted: 01/20/2024] [Indexed: 02/12/2024]
Abstract
The main purpose of this paper is to provide information on how to create a convolutional neural network (CNN) for extracting features from EEG signals. Our task was to understand the primary aspects of creating and fine-tuning CNNs for various application scenarios. We considered the characteristics of EEG signals, coupled with an exploration of various signal processing and data preparation techniques. These techniques include noise reduction, filtering, encoding, decoding, and dimension reduction, among others. In addition, we conduct an in-depth analysis of well-known CNN architectures, categorizing them into four distinct groups: standard implementation, recurrent convolutional, decoder architecture, and combined architecture. This paper further offers a comprehensive evaluation of these architectures, covering accuracy metrics, hyperparameters, and an appendix that contains a table outlining the parameters of commonly used CNN architectures for feature extraction from EEG signals.
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Affiliation(s)
- Ildar Rakhmatulin
- Department of Electrical and Electronic Engineering, Imperial College London, London SW7 2AZ, UK; (A.N.)
| | - Minh-Son Dao
- National Institute of Information and Communications Technology (NICT), Tokyo 184-0015, Japan
| | - Amir Nassibi
- Department of Electrical and Electronic Engineering, Imperial College London, London SW7 2AZ, UK; (A.N.)
| | - Danilo Mandic
- Department of Electrical and Electronic Engineering, Imperial College London, London SW7 2AZ, UK; (A.N.)
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254
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Luo C, Zhang R, Liu J, He X, Li S, Ran C, Ma S, Shen Y. A One Step Strategy Based on Hollow Gold Nanoparticles to Detect C-Reactive Protein with High Sensitivity (Hs-CRP) in Serum for Monitoring Cardiovascular Disease. Int J Nanomedicine 2024; 19:845-858. [PMID: 38293607 PMCID: PMC10825586 DOI: 10.2147/ijn.s436391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 01/08/2024] [Indexed: 02/01/2024] Open
Abstract
Purpose Rapid detection and diagnosis of diseases facilitate timely and effective treatment of cardiovascular diseases (CVD). The establishment of a one-step rapid detection method provides a new method for the initial screening and disease risk assessment of patients with cardiovascular diseases in primary medical units. Methods Hollow gold nanoparticles (HGNPs) were synthesized using a cobalt template method followed by use as signal amplification probes for ultra-sensitive quantitative detection of serum C-reactive protein (CRP). To induce the localized surface plasmon resonance (LSPR) and improve protein labeling efficiency, we developed a sensitive detection mode by coating polyvinylpyrrolidone (PVP-K30) on the HGNPs, resulting in a significant improvement in detection performance. Results Compared to traditional colloidal GNP-based LFTA, PVP-coated HGNPs exhibit a lower visual detection limit of 1 ng/mL, which a 25-fold decrement compare to using GNPs as the antibody-labeled probe, and the detection limit could be reduced to 0.14 ng/mL under the quantitative instrument. Conclusion The one-step method based on HGNP immunochromatographic strips modified with PVP established in this study can be used for the detection of CRP and hs-CRP in biological samples. The performance of the immunochromatographic technique designed in this study was evaluated from the perspective of synthetic markers, and the application conditions of this strip were screened, verifying its high specificity, indicating that it has high sensitivity and strong detection limit compared to colloidal gold. The sensitivity of the hollow gold immunochromatographic test strip in this article has been increased by about 25 times, providing a new method for rapid detection of CVD in clinical diagnosis.
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Affiliation(s)
- Changyou Luo
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, 211100, People’s Republic of China
| | - Ruiqing Zhang
- Children’s Hospital of Nanjing Medical University, Nanjing, People’s Republic of China
| | - Ji Liu
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, 211100, People’s Republic of China
| | - Xingyue He
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, 211100, People’s Republic of China
| | - Shengzhou Li
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, 211100, People’s Republic of China
| | - Chuanjiang Ran
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, 211100, People’s Republic of China
| | - Songbo Ma
- Department of Oral and Maxillofacial Surgery, The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou, Jiangsu, 225300, People’s Republic of China
| | - Yan Shen
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, 211100, People’s Republic of China
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255
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Zhao Y, Liang J, Li J, Zhang Z, Sun Y, Liu F, Zhang X, Liang Y, Teng L, Liu Z. First complete mitochondrial genome of the Alashan ground squirrel ( Spermophilus alashanicus) (Rodentia: Sciuridae) from Ningxia, China. Mitochondrial DNA B Resour 2024; 9:148-152. [PMID: 38274853 PMCID: PMC10810644 DOI: 10.1080/23802359.2024.2305406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 01/09/2024] [Indexed: 01/27/2024] Open
Abstract
The Alashan ground squirrel (Spermophilus alashanicus) is primarily distributed in the regions of Inner Mongolia and Ningxia, China. In this study, we present the first complete mitochondrial genome of S. alashanicus. The genome spans 16,464 base pairs and comprises 13 protein-coding genes, 22 tRNA genes, two rRNA genes, and a single control region with a marked AT bias. The overall GC content is 35.4%. Phylogenetic analyses indicate that S. alashanicus clusters are closely associated with S. dauricus. This comprehensive characterization of the S. alashanicus mitochondrial genome serves as a foundational resource for future studies on mitochondrial evolution, species identification, population genomics, and phylogenetics.
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Affiliation(s)
- Yao Zhao
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, China
| | - Jun Liang
- Ningxia Helan Mountain National Nature Reserve Administration, Yinchuan, China
| | - Jingyao Li
- Ningxia Helan Mountain National Nature Reserve Administration, Yinchuan, China
| | - Zhirong Zhang
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, China
| | - Yue Sun
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, China
| | - Fubin Liu
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, China
| | - Xu Zhang
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, China
| | - Yongliang Liang
- Ningxia Helan Mountain National Nature Reserve Administration, Yinchuan, China
| | - Liwei Teng
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, China
- Key Laboratory of Conservation Biology, National Forestry and Grassland Administration, Harbin, China
| | - Zhensheng Liu
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, China
- Key Laboratory of Conservation Biology, National Forestry and Grassland Administration, Harbin, China
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Zhang C, Wang Y, Xue Y, Cheng J, Chi P, Wang Z, Li B, Yan T, Wu B, Wang Z. Enhanced Hemostatic and Procoagulant Efficacy of PEG/ZnO Hydrogels: A Novel Approach in Traumatic Hemorrhage Management. Gels 2024; 10:88. [PMID: 38391418 PMCID: PMC10888357 DOI: 10.3390/gels10020088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 01/15/2024] [Accepted: 01/19/2024] [Indexed: 02/24/2024] Open
Abstract
Managing severe bleeding, particularly in soft tissues and visceral injuries, remains a significant challenge in trauma and surgical care. Traditional hemostatic methods often fall short in wet and dynamic environments. This study addresses the critical issue of severe bleeding in soft tissues, proposing an innovative solution using a polyethylene glycol (PEG)-based hydrogel combined with zinc oxide (ZnO). The developed hydrogel forms a dual-network structure through amide bonds and metal ion chelation, resulting in enhanced mechanical properties and adhesion strength. The hydrogel, exhibiting excellent biocompatibility, is designed to release zinc ions, promoting coagulation and accelerating hemostasis. Comprehensive characterization, including gelation time, rheological properties, microstructure analysis, and swelling behavior, demonstrates the superior performance of the PEG/ZnO hydrogel compared to traditional PEG hydrogels. Mechanical tests confirm increased compression strength and adhesive properties, which are crucial for withstanding tissue dynamics. In vitro assessments reveal excellent biocompatibility and enhanced procoagulant ability attributed to ZnO. Moreover, in vivo experiments using rat liver and tail bleeding models demonstrate the remarkable hemostatic performance of the PEG/ZnO hydrogel, showcasing its potential for acute bleeding treatment in both visceral and peripheral scenarios.
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Affiliation(s)
- Chuyue Zhang
- Department of Orthopedics, Chinese PLA General Hospital, Beijing 100853, China
- Chinese PLA Medical School, Beijing 100853, China
| | - Yifan Wang
- Department of Orthopedics, Chinese PLA General Hospital, Beijing 100853, China
- Chinese PLA Medical School, Beijing 100853, China
| | - Yuan Xue
- Department of Orthopedics, Chinese PLA General Hospital, Beijing 100853, China
- Chinese PLA Medical School, Beijing 100853, China
| | - Junyao Cheng
- Department of Orthopedics, Chinese PLA General Hospital, Beijing 100853, China
- Chinese PLA Medical School, Beijing 100853, China
| | - Pengfei Chi
- Department of Orthopedics, Chinese PLA General Hospital, Beijing 100853, China
- Chinese PLA Medical School, Beijing 100853, China
| | - Zhaohan Wang
- Department of Orthopedics, Chinese PLA General Hospital, Beijing 100853, China
- Chinese PLA Medical School, Beijing 100853, China
| | - Bo Li
- Department of Orthopedics, Chinese PLA General Hospital, Beijing 100853, China
- Chinese PLA Medical School, Beijing 100853, China
| | - Taoxu Yan
- Department of Orthopedics, Chinese PLA General Hospital, Beijing 100853, China
- Chinese PLA Medical School, Beijing 100853, China
| | - Bing Wu
- Department of Orthopedics, Chinese PLA General Hospital, Beijing 100853, China
| | - Zheng Wang
- Department of Orthopedics, Chinese PLA General Hospital, Beijing 100853, China
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257
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Ma S, Ma B, Yang Y, Mu Y, Wei P, Yu X, Zhao B, Zou Z, Liu Z, Wang M, Deng J. Functionalized 3D Hydroxyapatite Scaffold by Fusion Peptides-Mediated Small Extracellular Vesicles of Stem Cells for Bone Tissue Regeneration. ACS APPLIED MATERIALS & INTERFACES 2024; 16:3064-3081. [PMID: 38215277 DOI: 10.1021/acsami.3c13273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2024]
Abstract
3D printing technology offers extensive applications in tissue engineering and regenerative medicine (TERM) because it can create a three-dimensional porous structure with acceptable porosity and fine mechanical qualities that can mimic natural bone. Hydroxyapatite (HA) is commonly used as a bone repair material due to its excellent biocompatibility and osteoconductivity. Small extracellular vesicles (sEVs) derived from bone marrow mesenchymal stem cells (BMSCs) can regulate bone metabolism and stimulate the osteogenic differentiation of stem cells. This study has designed a functionalized bone regeneration scaffold (3D H-P-sEVs) by combining the biological activity of BMSCs-sEVs and the 3D-HA scaffold to improve bone regeneration. The scaffold utilizes the targeting of fusion peptides to increase the loading efficiency of sEVs. The composition, structure, mechanical properties, and in vitro degradation performance of the 3D H-P-sEVs scaffolds were examined. The composite scaffold demonstrated good biocompatibility, substantially increased the expression of osteogenic-related genes and proteins, and had a satisfactory bone integration effect in the critical skull defect model of rats. In conclusion, the combination of EVs and 3D-HA scaffold via fusion peptide provides an innovative composite scaffold for bone regeneration and repair, improving osteogenic performance.
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Affiliation(s)
- Shiqing Ma
- Department of Stomatology, The Second Hospital of Tianjin Medical University, 23 Pingjiang Road, Hexi District, Tianjin 300211, China
| | - Beibei Ma
- School and Hospital of Stomatology, Tianjin Medical University, 12 Observatory Road, Tianjin 300070, China
| | - Yilin Yang
- School and Hospital of Stomatology, Tianjin Medical University, 12 Observatory Road, Tianjin 300070, China
| | - Yuzhu Mu
- School and Hospital of Stomatology, Tianjin Medical University, 12 Observatory Road, Tianjin 300070, China
| | - Pengfei Wei
- Beijing Biosis Healing Biological Technology Co., Ltd., No. 6 Plant West, Valley No. 1 Bio-medicine Industry Park, Beijing 102600, China
| | - Xueqiao Yu
- Beijing Biosis Healing Biological Technology Co., Ltd., No. 6 Plant West, Valley No. 1 Bio-medicine Industry Park, Beijing 102600, China
| | - Bo Zhao
- Beijing Biosis Healing Biological Technology Co., Ltd., No. 6 Plant West, Valley No. 1 Bio-medicine Industry Park, Beijing 102600, China
| | - Zhenyu Zou
- Department of Hernia and Abdominal Wall Surgery, Beijing Chaoyang Hospital, Capital Medical University, 5 Jingyuan Road, Shijingshan District, Beijing 100043, China
| | - Zihao Liu
- Tianjin Zhongnuo Dental Hospital, Dingfu Building at the intersection of Nanma Road and Nankai Sanma Road in Nankai District, Tianjin 300100, China
| | - Minggang Wang
- Department of Hernia and Abdominal Wall Surgery, Beijing Chaoyang Hospital, Capital Medical University, 5 Jingyuan Road, Shijingshan District, Beijing 100043, China
| | - Jiayin Deng
- School and Hospital of Stomatology, Tianjin Medical University, 12 Observatory Road, Tianjin 300070, China
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Sobhani-Nasab A, Banafshe HR, Atapour A, Khaksary Mahabady M, Akbari M, Daraei A, Mansoori Y, Moradi Hasan-Abad A. The use of nanoparticles in the treatment of infectious diseases and cancer, dental applications and tissue regeneration: a review. FRONTIERS IN MEDICAL TECHNOLOGY 2024; 5:1330007. [PMID: 38323112 PMCID: PMC10844477 DOI: 10.3389/fmedt.2023.1330007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 12/12/2023] [Indexed: 02/08/2024] Open
Abstract
The emergence of nanotechnology as a field of study can be traced back to the 1980s, at which point the means to artificially produce, control, and observe matter on a nanometer level was made viable. Recent advancements in technology have enabled us to extend our reach to the nanoscale, which has presented an unparalleled opportunity to directly target biomolecular interactions. As a result of these developments, there is a drive to arise intelligent nanostructures capable of overcoming the obstacles that have impeded the progress of conventional pharmacological methodologies. After four decades, the gradual amalgamation of bio- and nanotechnologies is initiating a revolution in the realm of disease detection, treatment, and monitoring, as well as unsolved medical predicaments. Although a significant portion of research in the field is still confined to laboratories, the initial application of nanotechnology as treatments, vaccines, pharmaceuticals, and diagnostic equipment has now obtained endorsement for commercialization and clinical practice. The current issue presents an overview of the latest progress in nanomedical strategies towards alleviating antibiotic resistance, diagnosing and treating cancer, addressing neurodegenerative disorders, and an array of applications, encompassing dentistry and tuberculosis treatment. The current investigation also scrutinizes the deployment of sophisticated smart nanostructured materials in fields of application such as regenerative medicine, as well as the management of targeted and sustained release of pharmaceuticals and therapeutic interventions. The aforementioned concept exhibits the potential for revolutionary advancements within the field of immunotherapy, as it introduces the utilization of implanted vaccine technology to consistently regulate and augment immune functions. Concurrently with the endeavor to attain the advantages of nanomedical intervention, it is essential to enhance the unceasing emphasis on nanotoxicological research and the regulation of nanomedications' safety. This initiative is crucial in achieving the advancement in medicine that currently lies within our reach.
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Affiliation(s)
- Ali Sobhani-Nasab
- Physiology Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Hamid Reza Banafshe
- Physiology Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Amir Atapour
- Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mahmood Khaksary Mahabady
- Anatomical Sciences Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Maryam Akbari
- Department of Surgery, School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
| | - Abdolreza Daraei
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Yaser Mansoori
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
| | - Amin Moradi Hasan-Abad
- Autoimmune Diseases Research Center, Shahid Beheshti Hospital, Kashan University of Medical Sciences, Kashan, Iran
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259
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Kordzadeh A, Mohaghegh V, Inston N. International survey of radiocephalic arteriovenous fistula: ISRAF survey. J Vasc Access 2024:11297298231222601. [PMID: 38253483 DOI: 10.1177/11297298231222601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024] Open
Abstract
AIMS The objective of this survey was to encompass the full scope of international practice, entailing all technical, non-technical, preoperative stratification and functional maturation (FM) of RCAVF. METHODS The survey contained n = 19 questionnaires with n = 46 variables completed by n = 85 providers from n = 21 nations across n = 5 continents. The numerical values were subjected to mean with standard error whereas the nominal data to a non-parametric (Kruskal-Wallis & Spearman correlation test) and analysis of variance (ANOVA). The test of homogeneity, & probability was reported 95% confidence intervals (CI) alongside error plots. Furthermore, a decision and higher attribute tree model was constructed based on current survey for higher FM in RCAVF. RESULTS FM is independently associated with volume of surgeon per year (procedures performed) (p < 0.01) [High Volume: 73% (95% CI, 68-77%) versus Average volume: 63% (95% CI, 59-66%) vs Low volume: 56% (95% CI, 51-61%)]. FM increased by 8% with every 20 more procedures per group of surgeons on end point of FM. Amongst continents: Australia, America, Asia and South America demonstrated higher FM to Africa & Europe (p < 0.05). UK possessed a lower FM 58% (95% CI, 48-68%) in comparison to the world & Europe respectively [65% (95% CI, 61-70%) vs 61% (95% CI, 58--65%)]. There was a positive causal link between angle of anastomosis at 30-76° (p < 0.01), longitudinal & S-shaped incision & arteriotomy length of 3 & 4 mm to higher FM (p < 0.05). CONCLUSION FM in RCAVF is independently & incrementally associated with the volume of surgeon per year. There is a diverse inclusion, exclusion and technical approach in RCAVF creation. This survey advocates the importance of international collaboration and/or registry in assimilation, consolidate and development of consensus.
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Affiliation(s)
- Ali Kordzadeh
- Department of Vascular, Endovascular Surgery and Renal Access, Mid and South Essex NHS Foundation Trust, Basildon Hospital, Nether Mayne, Basildon, Essex, UK
- Faculty of Science and Engineering, Anglia Ruskin University, Chelmsford, England, UK
| | - Vahaj Mohaghegh
- Faculty of Science and Engineering, Anglia Ruskin University, Chelmsford, England, UK
| | - Nicholas Inston
- Department of Renal Surgery, Queen Elizabeth Hospital, University Hospitals Birmingham NHS Foundation Trust, Birmingham, England, UK
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Toosi S, Javid-Naderi MJ, Tamayol A, Ebrahimzadeh MH, Yaghoubian S, Mousavi Shaegh SA. Additively manufactured porous scaffolds by design for treatment of bone defects. Front Bioeng Biotechnol 2024; 11:1252636. [PMID: 38312510 PMCID: PMC10834686 DOI: 10.3389/fbioe.2023.1252636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 12/20/2023] [Indexed: 02/06/2024] Open
Abstract
There has been increasing attention to produce porous scaffolds that mimic human bone properties for enhancement of tissue ingrowth, regeneration, and integration. Additive manufacturing (AM) technologies, i.e., three dimensional (3D) printing, have played a substantial role in engineering porous scaffolds for clinical applications owing to their high level of design and fabrication flexibility. To this end, this review article attempts to provide a detailed overview on the main design considerations of porous scaffolds such as permeability, adhesion, vascularisation, and interfacial features and their interplay to affect bone regeneration and osseointegration. Physiology of bone regeneration was initially explained that was followed by analysing the impacts of porosity, pore size, permeability and surface chemistry of porous scaffolds on bone regeneration in defects. Importantly, major 3D printing methods employed for fabrication of porous bone substitutes were also discussed. Advancements of MA technologies have allowed for the production of bone scaffolds with complex geometries in polymers, composites and metals with well-tailored architectural, mechanical, and mass transport features. In this way, a particular attention was devoted to reviewing 3D printed scaffolds with triply periodic minimal surface (TPMS) geometries that mimic the hierarchical structure of human bones. In overall, this review enlighten a design pathway to produce patient-specific 3D-printed bone substitutions with high regeneration and osseointegration capacity for repairing large bone defects.
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Affiliation(s)
- Shirin Toosi
- Stem Cell and Regenerative Medicine Center, Mashhad University of Medical Science, Mashhad, Iran
| | - Mohammad Javad Javid-Naderi
- Department of Medical Biotechnology and Nanotechnology, Faculty of Medicine, Mashhad University of Medical Science, Mashhad, Iran
| | - Ali Tamayol
- Department of Biomedical Engineering, University of Connecticut Health Center, Farmington, CT, United States
| | | | - Sima Yaghoubian
- Orthopedic Research Center, Ghaem Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Ali Mousavi Shaegh
- Orthopedic Research Center, Ghaem Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
- Laboratory for Microfluidics and Medical Microsystems, BuAli Research Institute, Mashhad University of Medical Science, Mashhad, Iran
- Clinical Research Unit, Ghaem Hospital, Mashhad University of Medical Science, Mashhad, Iran
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261
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Bömicke W, Boisserée P, Rammelsberg P, Rues S. Initial damage and failure load of zirconia-ceramic and metal-ceramic posterior cantilever fixed partial dentures. Clin Oral Investig 2024; 28:94. [PMID: 38221600 PMCID: PMC10788321 DOI: 10.1007/s00784-024-05501-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 01/07/2024] [Indexed: 01/16/2024]
Abstract
OBJECTIVES The aim of this study was to compare failure load and initial damage in monolithic, partially veneered, and completely veneered (translucent) zirconia cantilevered fixed partial dentures (CFPDs), as well as completely veneered metal-ceramic CFPDs under different support and loading configurations. MATERIALS AND METHODS Eight test groups with anatomically congruent CFPDs (n = 8/group) were fabricated, differing in CFPD material/support structure/loading direction (load applied via steel ball (Ø 6 mm) 3 mm from the distal end of the pontic for axial loading with a 2-point contact on the inner cusp ridges of the buccal and oral cusps and 1.3 mm below the oral cusp tip for 30° oblique loading): (1) monolithic zirconia/CoCr abutment teeth/axial, (2) monolithic zirconia/CoCr abutment teeth/oblique, (3) partially veneered zirconia/CoCr abutment teeth/axial, (4) partially veneered zirconia/CoCr abutment teeth/oblique, (5) completely veneered zirconia/CoCr abutment teeth/axial, (6) completely veneered CoCr/CoCr abutment teeth/axial (control group), (7) partially veneered zirconia/implants/axial, and (8) partially veneered zirconia/natural teeth/axial. Restorations were artificially aged before failure testing. Statistical analysis was conducted using one-way ANOVA and Tukey post hoc tests. RESULTS Mean failure loads ranged from 392 N (group 8) to 1181 N (group 1). Axially loaded monolithic zirconia CFPDs (group 1) and controls (group 6) showed significantly higher failure loads. Oblique loading significantly reduced failure loads for monolithic zirconia CFPDs (group 2). Initial damage was observed in all groups except monolithic zirconia groups, and fractography revealed design flaws (sharp edges at the occlusal boundary of the veneering window) in partially veneered zirconia CFPDs. CONCLUSIONS Monolithic zirconia CFPDs might be a viable alternative to completely veneered CoCr CFPDs in terms of fracture load. However, oblique loading of monolithic zirconia CFPDs should be avoided in clinical scenarios. Design improvements are required for partially veneered zirconia CFPDs to enhance their load-bearing capacity. CLINICAL RELEVANCE Monolithic zirconia may represent a viable all-ceramic alternative to the established metal-ceramic option for CFPD fabrication. However, in daily clinical practice, careful occlusal adjustment and regular monitoring should ensure that oblique loading of the cantilever is avoided.
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Affiliation(s)
- Wolfgang Bömicke
- Department of Prosthetic Dentistry, University Hospital Heidelberg, University of Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.
| | | | - Peter Rammelsberg
- Department of Prosthetic Dentistry, University Hospital Heidelberg, University of Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
| | - Stefan Rues
- Department of Prosthetic Dentistry, University Hospital Heidelberg, University of Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
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262
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Chen C, Fu Z, Ye S, Zhao C, Golovko V, Ye S, Bai Z. Study on high-precision three-dimensional reconstruction of pulmonary lesions and surrounding blood vessels based on CT images. OPTICS EXPRESS 2024; 32:1371-1390. [PMID: 38297691 DOI: 10.1364/oe.510398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 12/15/2023] [Indexed: 02/02/2024]
Abstract
The adoption of computerized tomography (CT) technology has significantly elevated the role of pulmonary CT imaging in diagnosing and treating pulmonary diseases. However, challenges persist due to the complex relationship between lesions within pulmonary tissue and the surrounding blood vessels. These challenges involve achieving precise three-dimensional reconstruction while maintaining accurate relative positioning of these elements. To effectively address this issue, this study employs a semi-automatic precise labeling process for the target region. This procedure ensures a high level of consistency in the relative positions of lesions and the surrounding blood vessels. Additionally, a morphological gradient interpolation algorithm, combined with Gaussian filtering, is applied to facilitate high-precision three-dimensional reconstruction of both lesions and blood vessels. Furthermore, this technique enables post-reconstruction slicing at any layer, facilitating intuitive exploration of the correlation between blood vessels and lesion layers. Moreover, the study utilizes physiological knowledge to simulate real-world blood vessel intersections, determining the range of blood vessel branch angles and achieving seamless continuity at internal blood vessel branch points. The experimental results achieved a satisfactory reconstruction with an average Hausdorff distance of 1.5 mm and an average Dice coefficient of 92%, obtained by comparing the reconstructed shape with the original shape,the approach also achieves a high level of accuracy in three-dimensional reconstruction and visualization. In conclusion, this study is a valuable source of technical support for the diagnosis and treatment of pulmonary diseases and holds promising potential for widespread adoption in clinical practice.
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263
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Paredes-Acuna N, Utpadel-Fischler D, Ding K, Thakor NV, Cheng G. Upper limb intention tremor assessment: opportunities and challenges in wearable technology. J Neuroeng Rehabil 2024; 21:8. [PMID: 38218890 PMCID: PMC10787996 DOI: 10.1186/s12984-023-01302-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 12/26/2023] [Indexed: 01/15/2024] Open
Abstract
BACKGROUND Tremors are involuntary rhythmic movements commonly present in neurological diseases such as Parkinson's disease, essential tremor, and multiple sclerosis. Intention tremor is a subtype associated with lesions in the cerebellum and its connected pathways, and it is a common symptom in diseases associated with cerebellar pathology. While clinicians traditionally use tests to identify tremor type and severity, recent advancements in wearable technology have provided quantifiable ways to measure movement and tremor using motion capture systems, app-based tasks and tools, and physiology-based measurements. However, quantifying intention tremor remains challenging due to its changing nature. METHODOLOGY & RESULTS This review examines the current state of upper limb tremor assessment technology and discusses potential directions to further develop new and existing algorithms and sensors to better quantify tremor, specifically intention tremor. A comprehensive search using PubMed and Scopus was performed using keywords related to technologies for tremor assessment. Afterward, screened results were filtered for relevance and eligibility and further classified into technology type. A total of 243 publications were selected for this review and classified according to their type: body function level: movement-based, activity level: task and tool-based, and physiology-based. Furthermore, each publication's methods, purpose, and technology are summarized in the appendix table. CONCLUSIONS Our survey suggests a need for more targeted tasks to evaluate intention tremors, including digitized tasks related to intentional movements, neurological and physiological measurements targeting the cerebellum and its pathways, and signal processing techniques that differentiate voluntary from involuntary movement in motion capture systems.
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Affiliation(s)
- Natalia Paredes-Acuna
- Institute for Cognitive Systems, Technical University of Munich, Arcisstraße 21, 80333, Munich, Germany.
| | - Daniel Utpadel-Fischler
- Department of Neurology, School of Medicine, Technical University of Munich, Munich, Germany
| | - Keqin Ding
- Department of Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Nitish V Thakor
- Department of Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Gordon Cheng
- Institute for Cognitive Systems, Technical University of Munich, Arcisstraße 21, 80333, Munich, Germany
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Kannen K, Rasbach J, Fantazi A, Wiebe A, Selaskowski B, Asché L, Aslan B, Lux S, Herrmann CS, Philipsen A, Braun N. Alpha modulation via transcranial alternating current stimulation in adults with attention-deficit hyperactivity disorder. Front Psychol 2024; 14:1280397. [PMID: 38282845 PMCID: PMC10812111 DOI: 10.3389/fpsyg.2023.1280397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Accepted: 11/23/2023] [Indexed: 01/30/2024] Open
Abstract
Background One potential therapy treating attention-deficit/hyperactivity disorder (ADHD) is to modulate dysfunctional brain activations using brain stimulation techniques. While the number of studies investigating the effect of transcranial direct current stimulation on ADHD symptoms continues to increase, transcranial alternating current stimulation (tACS) is poorly examined. Previous studies reported impaired alpha brain oscillation (8-12 Hz) that may be associated with increased attention deficits in ADHD. Our aim was to enhance alpha power in adult ADHD patients via tACS, using different methods to explore potential therapeutic effects. Methods Undergoing a crossover design, adults with ADHD received active and sham stimulation on distinct days. Before and after each intervention, mean alpha power, attention performance, subjective symptom ratings, as well as head and gaze movement were examined. Results Frequency analyses revealed a significant power increase in the alpha band after both interventions. Despite a trend toward an interaction effect, this alpha power increase was, however, not significantly higher after active stimulation compared to sham stimulation. For the other measures, some additional pre-post effects were found, which were not intervention-related. Conclusion Our study cannot provide clear evidence for a tACS-induced increase in alpha power in adult ADHD patients, and thus no stimulation related improvement of attention parameters. We provide further recommendations for the future investigation of tACS as a potential ADHD treatment.
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Affiliation(s)
- Kyra Kannen
- Department of Psychiatry and Psychotherapy, University Hospital Bonn, Bonn, Germany
| | - Johanna Rasbach
- Department of Psychiatry and Psychotherapy, University Hospital Bonn, Bonn, Germany
| | - Amin Fantazi
- Department of Psychiatry and Psychotherapy, University Hospital Bonn, Bonn, Germany
| | - Annika Wiebe
- Department of Psychiatry and Psychotherapy, University Hospital Bonn, Bonn, Germany
| | - Benjamin Selaskowski
- Department of Psychiatry and Psychotherapy, University Hospital Bonn, Bonn, Germany
| | - Laura Asché
- Department of Psychiatry and Psychotherapy, University Hospital Bonn, Bonn, Germany
| | - Behrem Aslan
- Department of Psychiatry and Psychotherapy, University Hospital Bonn, Bonn, Germany
| | - Silke Lux
- Department of Psychiatry and Psychotherapy, University Hospital Bonn, Bonn, Germany
| | - Christoph S. Herrmann
- Experimental Psychology Lab, Department of Psychology, University of Oldenburg, Oldenburg, Germany
| | - Alexandra Philipsen
- Department of Psychiatry and Psychotherapy, University Hospital Bonn, Bonn, Germany
| | - Niclas Braun
- Department of Psychiatry and Psychotherapy, University Hospital Bonn, Bonn, Germany
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265
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Korte J, Klopp ES, Berg P. Multi-Dimensional Modeling of Cerebral Hemodynamics: A Systematic Review. Bioengineering (Basel) 2024; 11:72. [PMID: 38247949 PMCID: PMC10813503 DOI: 10.3390/bioengineering11010072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 12/23/2023] [Accepted: 01/06/2024] [Indexed: 01/23/2024] Open
Abstract
The Circle of Willis (CoW) describes the arterial system in the human brain enabling the neurovascular blood supply. Neurovascular diseases like intracranial aneurysms (IAs) can occur within the CoW and carry the risk of rupture, which can lead to subarachnoid hemorrhage. The assessment of hemodynamic information in these pathologies is crucial for their understanding regarding detection, diagnosis and treatment. Multi-dimensional in silico approaches exist to evaluate these hemodynamics based on patient-specific input data. The approaches comprise low-scale (zero-dimensional, one-dimensional) and high-scale (three-dimensional) models as well as multi-scale coupled models. The input data can be derived from medical imaging, numerical models, literature-based assumptions or from measurements within healthy subjects. Thus, the most realistic description of neurovascular hemodynamics is still controversial. Within this systematic review, first, the models of the three scales (0D, 1D, 3D) and second, the multi-scale models, which are coupled versions of the three scales, were discussed. Current best practices in describing neurovascular hemodynamics most realistically and their clinical applicablility were elucidated. The performance of 3D simulation entails high computational expenses, which could be reduced by analyzing solely the region of interest in detail. Medical imaging to establish patient-specific boundary conditions is usually rare, and thus, lower dimensional models provide a realistic mimicking of the surrounding hemodynamics. Multi-scale coupling, however, is computationally expensive as well, especially when taking all dimensions into account. In conclusion, the 0D-1D-3D multi-scale approach provides the most realistic outcome; nevertheless, it is least applicable. A 1D-3D multi-scale model can be considered regarding a beneficial trade-off between realistic results and applicable performance.
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Affiliation(s)
- Jana Korte
- Research Campus STIMULATE, University of Magdeburg, 39106 Magdeburg, Germany
- Department of Fluid Dynamics and Technical Flows, University of Magdeburg, 39106 Magdeburg, Germany
| | - Ehlar Sophie Klopp
- Research Campus STIMULATE, University of Magdeburg, 39106 Magdeburg, Germany
- Department of Medical Engineering, University of Magdeburg, 39106 Magdeburg, Germany
| | - Philipp Berg
- Research Campus STIMULATE, University of Magdeburg, 39106 Magdeburg, Germany
- Department of Medical Engineering, University of Magdeburg, 39106 Magdeburg, Germany
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Sait R, Al-Jawhari H, Ganash A, Wustoni S, Chen L, Hedhili MN, Wehbe N, Hussein D, Alhowity A, Baeesa S, Bangash M, Abuzenadah A, Inal S, Cross R. Electrochemical Performance of Biocompatible TiC Films Deposited through Nonreactive RF Magnetron Sputtering for Neural Interfacing. ACS Biomater Sci Eng 2024; 10:391-404. [PMID: 38095213 DOI: 10.1021/acsbiomaterials.3c01371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
The efficacy of neural electrode stimulation and recording hinges significantly on the choice of a neural electrode interface material. Transition metal carbides (TMCs), particularly titanium carbide (TiC), have demonstrated exceptional chemical stability and high electrical conductivity. Yet, the fabrication of TiC thin films and their potential application as neural electrode interfaces remains relatively unexplored. Herein, we present a systematic examination of TiC thin films synthesized through nonreactive radio frequency (RF) magnetron sputtering. TiC films were optimized toward high areal capacitance, low impedance, and stable electrochemical cyclability. We varied the RF power and deposition pressure to pinpoint the optimal properties, focusing on the deposition rate, surface roughness, crystallinity, and elemental composition to achieve high areal capacitance and low impedance. The best-performing TiC film showed an areal capacitance of 475 μF/cm2 with a capacitance retention of 93% after 5000 cycles. In addition, the electrochemical performance of the optimum film under varying scanning rates demonstrated a stable electrochemical performance even under dynamic and fast-changing stimulation conditions. Furthermore, the in vitro cell culture for 3 weeks revealed excellent biocompatibility, promoting cell growth compared with a control substrate. This work presents a novel contribution, highlighting the potential of sputtered TiC thin films as robust neural electrode interface materials.
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Affiliation(s)
- Roaa Sait
- Faculty of Science, Department of Physics, King Abdulaziz University, Building 7, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Hala Al-Jawhari
- Faculty of Science, Department of Physics, King Abdulaziz University, Building 7, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Aisha Ganash
- Faculty of Science, Department of Physics, King Abdulaziz University, Building 7, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Shofarul Wustoni
- Organic Bioelectronics Laboratory, Biological Science and Engineering Division (BESE), King Abdullah University of Science and Engineering (KAUST), Building 2, Thuwal 23955-6900, Saudi Arabia
| | - Long Chen
- Imaging and Characterization Core Laboratories, King Abdullah University of Science and Engineering (KAUST), Building 3, Thuwal 23955-6900, Saudi Arabia
| | - Mohamed Nejib Hedhili
- Imaging and Characterization Core Laboratories, King Abdullah University of Science and Engineering (KAUST), Building 3, Thuwal 23955-6900, Saudi Arabia
| | - Nimer Wehbe
- Imaging and Characterization Core Laboratories, King Abdullah University of Science and Engineering (KAUST), Building 3, Thuwal 23955-6900, Saudi Arabia
| | - Deema Hussein
- King Fahd Medical Research Center, Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia
| | - Alazouf Alhowity
- King Fahd Medical Research Center, Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia
| | - Saleh Baeesa
- King Fahd Medical Research Center, Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia
| | - Mohammed Bangash
- King Fahd Medical Research Center, Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia
| | - Adel Abuzenadah
- King Fahd Medical Research Center, Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia
| | - Sahika Inal
- Organic Bioelectronics Laboratory, Biological Science and Engineering Division (BESE), King Abdullah University of Science and Engineering (KAUST), Building 2, Thuwal 23955-6900, Saudi Arabia
| | - Richard Cross
- Emerging Technology Research Center, De Montfort University, The Gateway, Leicester LE1 9BH, United Kingdom
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Mierke CT. Extracellular Matrix Cues Regulate Mechanosensing and Mechanotransduction of Cancer Cells. Cells 2024; 13:96. [PMID: 38201302 PMCID: PMC10777970 DOI: 10.3390/cells13010096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 12/29/2023] [Accepted: 01/01/2024] [Indexed: 01/12/2024] Open
Abstract
Extracellular biophysical properties have particular implications for a wide spectrum of cellular behaviors and functions, including growth, motility, differentiation, apoptosis, gene expression, cell-matrix and cell-cell adhesion, and signal transduction including mechanotransduction. Cells not only react to unambiguously mechanical cues from the extracellular matrix (ECM), but can occasionally manipulate the mechanical features of the matrix in parallel with biological characteristics, thus interfering with downstream matrix-based cues in both physiological and pathological processes. Bidirectional interactions between cells and (bio)materials in vitro can alter cell phenotype and mechanotransduction, as well as ECM structure, intentionally or unintentionally. Interactions between cell and matrix mechanics in vivo are of particular importance in a variety of diseases, including primarily cancer. Stiffness values between normal and cancerous tissue can range between 500 Pa (soft) and 48 kPa (stiff), respectively. Even the shear flow can increase from 0.1-1 dyn/cm2 (normal tissue) to 1-10 dyn/cm2 (cancerous tissue). There are currently many new areas of activity in tumor research on various biological length scales, which are highlighted in this review. Moreover, the complexity of interactions between ECM and cancer cells is reduced to common features of different tumors and the characteristics are highlighted to identify the main pathways of interaction. This all contributes to the standardization of mechanotransduction models and approaches, which, ultimately, increases the understanding of the complex interaction. Finally, both the in vitro and in vivo effects of this mechanics-biology pairing have key insights and implications for clinical practice in tumor treatment and, consequently, clinical translation.
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Affiliation(s)
- Claudia Tanja Mierke
- Biological Physics Division, Peter Debye Institute of Soft Matter Physics, Faculty of Physics and Earth Science, Leipzig University, Linnéstraße 5, 04103 Leipzig, Germany
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268
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Zhuo S, Liang Y, Wu Z, Zhao X, Han Y, Guo B. Supramolecular hydrogels for wound repair and hemostasis. MATERIALS HORIZONS 2024; 11:37-101. [PMID: 38018225 DOI: 10.1039/d3mh01403g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
The unique network characteristics and stimuli responsiveness of supramolecular hydrogels have rendered them highly advantageous in the field of wound dressings, showcasing unprecedented potential. However, there are few reports on a comprehensive review of supramolecular hydrogel dressings for wound repair and hemostasis. This review first introduces the major cross-linking methods for supramolecular hydrogels, which includes hydrogen bonding, electrostatic interactions, hydrophobic interactions, host-guest interactions, metal ligand coordination and some other interactions. Then, we review the advanced materials reported in recent years and then summarize the basic principles of each cross-linking method. Next, we classify the network structures of supramolecular hydrogels before outlining their forming process and propose their potential future directions. Furthermore, we also discuss the raw materials, structural design principles, and material characteristics used to achieve the advanced functions of supramolecular hydrogels, such as antibacterial function, tissue adhesion, substance delivery, anti-inflammatory and antioxidant functions, cell behavior regulation, angiogenesis promotion, hemostasis and other innovative functions in recent years. Finally, the existing problems as well as future development directions of the cross-linking strategy, network design, and functions in wound repair and hemostasis of supramolecular hydrogels are discussed. This review is proposed to stimulate further exploration of supramolecular hydrogels on wound repair and hemostasis by researchers in the future.
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Affiliation(s)
- Shaowen Zhuo
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China.
| | - Yongping Liang
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China.
| | - Zhengying Wu
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China.
| | - Xin Zhao
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China.
| | - Yong Han
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China.
- Department of Orthopaedics, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Baolin Guo
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China.
- Department of Orthopaedics, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, 710049, China
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Verzeletti GN, Gaio EJ, Machado KG, Spuldaro TR, Demeda CF, Frassini R, Streck AF, Moura E Silva S, Rösing CK, Henriques JAP, Roesch-Ely M. Desmarestia anceps Montagne modulates inflammatory response in experimental periodontitis in male Wistar rats. Arch Oral Biol 2024; 157:105825. [PMID: 37918302 DOI: 10.1016/j.archoralbio.2023.105825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 09/25/2023] [Accepted: 10/14/2023] [Indexed: 11/04/2023]
Abstract
OBJECTIVE Desmarestia anceps Montagne (D. anceps) seaweed has been shown to play a range of biologic activities, such as anti-inflammatory and antioxidant properties. The purpose of this study was to investigate the effects of D. anceps on pathogenesis of ligature-induced experimental periodontitis in rats. DESIGN Fifty-four male Wistar rats were randomly divided into six groups. Doses of D. anceps (100 and 200 mg/kg) were administered for 14 days to animals with or without ligature-induced periodontitis, in order to compare to control groups (vehicle solution). Morphometric registration of alveolar bone loss and histological analysis were conducted. Inflammatory cells were counted on hematoxylin-eosin-stained slides. Immunohistochemical expressions for interleukin-1 beta (IL-1β), tumor necrosis factor (TNF-α), receptor activator of nuclear factor kappa-Β ligand (RANKL) and bone morphogenetic protein 2 (BMP-2) were evaluated. RESULTS Alveolar bone loss was higher in groups exposed to ligature-induced periodontitis, but no significant differences were observed comparing different treatment and control groups. Animals that received D. anceps extracts showed significant lower counts of inflammatory cells. D. anceps promoted increased expression of BMP-2 and inhibited IL-1β, TNF-α and RANKL. CONCLUSION D. anceps modulates inflammatory response in experimental periodontitis in rats. Further pharmacological and immunological analyses are warranted.
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Affiliation(s)
- Giliano Nicolini Verzeletti
- Biotechnology Institute, University of Caxias do Sul, Rua Francisco Getúlio Vargas, 1130, Caxias do Sul, RS 95070-560, Brazil; School of Dentistry, Department of Periodontology, University of Caxias do Sul, Rua Francisco Getúlio Vargas, 1130 Bloco S, Caxias do Sul, RS 95070-560, Brazil.
| | - Eduardo José Gaio
- Department of Periodontology, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Keilla Gomes Machado
- Biotechnology Institute, University of Caxias do Sul, Rua Francisco Getúlio Vargas, 1130, Caxias do Sul, RS 95070-560, Brazil
| | - Tobias Rauber Spuldaro
- Department of Periodontology, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Clarissa Favero Demeda
- School of Dentistry, Department of Periodontology, University of Caxias do Sul, Rua Francisco Getúlio Vargas, 1130 Bloco S, Caxias do Sul, RS 95070-560, Brazil
| | - Rafaele Frassini
- Biotechnology Institute, University of Caxias do Sul, Rua Francisco Getúlio Vargas, 1130, Caxias do Sul, RS 95070-560, Brazil
| | - André Felipe Streck
- Biotechnology Institute, University of Caxias do Sul, Rua Francisco Getúlio Vargas, 1130, Caxias do Sul, RS 95070-560, Brazil
| | - Sidnei Moura E Silva
- Biotechnology Institute, University of Caxias do Sul, Rua Francisco Getúlio Vargas, 1130, Caxias do Sul, RS 95070-560, Brazil
| | | | - João Antonio Pêgas Henriques
- Biotechnology Institute, University of Caxias do Sul, Rua Francisco Getúlio Vargas, 1130, Caxias do Sul, RS 95070-560, Brazil
| | - Mariana Roesch-Ely
- Biotechnology Institute, University of Caxias do Sul, Rua Francisco Getúlio Vargas, 1130, Caxias do Sul, RS 95070-560, Brazil
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Jahangirnezhad M, Mahmoudinezhad SS, Moradi M, Moradi K, Rohani A, Tayebi L. Bone Scaffold Materials in Periodontal and Tooth-supporting Tissue Regeneration: A Review. Curr Stem Cell Res Ther 2024; 19:449-460. [PMID: 36578254 DOI: 10.2174/1574888x18666221227142055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 09/23/2022] [Accepted: 09/28/2022] [Indexed: 12/30/2022]
Abstract
BACKGROUND AND OBJECTIVES Periodontium is an important tooth-supporting tissue composed of both hard (alveolar bone and cementum) and soft (gingival and periodontal ligament) sections. Due to the multi-tissue architecture of periodontium, reconstruction of each part can be influenced by others. This review focuses on the bone section of the periodontium and presents the materials used in tissue engineering scaffolds for its reconstruction. MATERIALS AND METHODS The following databases (2015 to 2021) were electronically searched: ProQuest, EMBASE, SciFinder, MRS Online Proceedings Library, Medline, and Compendex. The search was limited to English-language publications and in vivo studies. RESULTS Eighty-three articles were found in primary searching. After applying the inclusion criteria, seventeen articles were incorporated into this study. CONCLUSION In complex periodontal defects, various types of scaffolds, including multilayered ones, have been used for the functional reconstruction of different parts of periodontium. While there are some multilayered scaffolds designed to regenerate alveolar bone/periodontal ligament/cementum tissues of periodontium in a hierarchically organized construct, no scaffold could so far consider all four tissues involved in a complete periodontal defect. The progress and material considerations in the regeneration of the bony part of periodontium are presented in this work to help investigators develop tissue engineering scaffolds suitable for complete periodontal regeneration.
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Affiliation(s)
- Mahmood Jahangirnezhad
- Department of Periodontics, School of Dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Sadaf Sadat Mahmoudinezhad
- Department of Periodontics, School of Dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Melika Moradi
- Department of Periodontics, School of Dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Kooshan Moradi
- Department of Periodontics, School of Dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ali Rohani
- Department of Periodontics, School of Dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Lobat Tayebi
- School of Dentistry, Marquette University, Milwaukee, WI, 53233, USA
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Gholap AD, Rojekar S, Kapare HS, Vishwakarma N, Raikwar S, Garkal A, Mehta TA, Jadhav H, Prajapati MK, Annapure U. Chitosan scaffolds: Expanding horizons in biomedical applications. Carbohydr Polym 2024; 323:121394. [PMID: 37940287 DOI: 10.1016/j.carbpol.2023.121394] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/30/2023] [Accepted: 09/12/2023] [Indexed: 11/10/2023]
Abstract
Chitosan, a natural polysaccharide from chitin, shows promise as a biomaterial for various biomedical applications due to its biocompatibility, biodegradability, antibacterial activity, and ease of modification. This review overviews "chitosan scaffolds" use in diverse biomedical applications. It emphasizes chitosan's structural and biological properties and explores fabrication methods like gelation, electrospinning, and 3D printing, which influence scaffold architecture and mechanical properties. The review focuses on chitosan scaffolds in tissue engineering and regenerative medicine, highlighting their role in bone, cartilage, skin, nerve, and vascular tissue regeneration, supporting cell adhesion, proliferation, and differentiation. Investigations into incorporating bioactive compounds, growth factors, and nanoparticles for improved therapeutic effects are discussed. The review also examines chitosan scaffolds in drug delivery systems, leveraging their prolonged release capabilities and ability to encapsulate medicines for targeted and controlled drug delivery. Moreover, it explores chitosan's antibacterial activity and potential for wound healing and infection management in biomedical contexts. Lastly, the review discusses challenges and future objectives, emphasizing the need for improved scaffold design, mechanical qualities, and understanding of interactions with host tissues. In summary, chitosan scaffolds hold significant potential in various biological applications, and this review underscores their promising role in advancing biomedical science.
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Affiliation(s)
- Amol D Gholap
- Department of Pharmaceutics, St. John Institute of Pharmacy and Research, Palghar 401404, Maharashtra, India
| | - Satish Rojekar
- Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
| | - Harshad S Kapare
- Department of Pharmaceutics, Dr. D. Y. Patil Institute of Pharmaceutical Sciences and Research, Pune 411018, Maharashtra, India
| | - Nikhar Vishwakarma
- Department of Pharmacy, Gyan Ganga Institute of Technology and Sciences, Jabalpur 482003, Madhya Pradesh, India
| | - Sarjana Raikwar
- Department of Pharmaceutical Sciences, Dr. Harisingh Gour Central University, Sagar 470003, Madhya Pradesh, India
| | - Atul Garkal
- Department of Pharmaceutics, Institute of Pharmacy, Nirma University, Ahmedabad 382481, Gujrat, India
| | - Tejal A Mehta
- Department of Pharmaceutics, Institute of Pharmacy, Nirma University, Ahmedabad 382481, Gujrat, India
| | - Harsh Jadhav
- Department of Food Engineering and Technology, Institute of Chemical Technology (ICT), Mumbai 400 019, Maharashtra, India
| | - Mahendra Kumar Prajapati
- Department of Pharmaceutics, School of Pharmacy and Technology Management, SVKM's NMIMS, Shirpur 425405, Maharashtra, India.
| | - Uday Annapure
- Institute of Chemical Technology, Marathwada Campus, Jalna 431203, Maharashtra, India; Department of Food Engineering and Technology, Institute of Chemical Technology (ICT), Mumbai 400 019, Maharashtra, India.
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272
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Wu L, Bai L, Dai W, Wu Y, Xi P, Zhang J, Zheng L. Ginsenoside Rg3: A Review of its Anticancer Mechanisms and Potential Therapeutic Applications. Curr Top Med Chem 2024; 24:869-884. [PMID: 38441023 DOI: 10.2174/0115680266283661240226052054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 01/27/2024] [Accepted: 02/01/2024] [Indexed: 03/06/2024]
Abstract
BACKGROUND Traditional Chinese Medicine (TCM) has a long history of treating various diseases and is increasingly being recognized as a complementary therapy for cancer. A promising natural compound extracted from the Chinese herb ginseng is ginsenoside Rg3, which has demonstrated significant anticancer effects. It has been tested in a variety of cancers and tumors and has proven to be effective in suppressing cancer. OBJECTIVES This work covers various aspects of the role of ginsenoside Rg3 in cancer treatment, including its biological functions, key pathways, epigenetics, and potential for combination therapies, all of which have been extensively researched and elucidated. The study aims to provide a reference for future research on ginsenoside Rg3 as an anticancer agent and a support for the potential application of ginsenoside Rg3 in cancer treatment.
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Affiliation(s)
- Lei Wu
- Core Facility of West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Lin Bai
- Core Facility of West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Wenshu Dai
- NHC Key Laboratory of Transplant Engineering and Immunology, Frontier Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Yaping Wu
- Core Facility of West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Pengjun Xi
- Division of Infectious Diseases, Department of Medicine Solna and Center for Molecular Medicine, Karolinska Institute, Stockholm, Sweden
| | - Jie Zhang
- Core Facility of West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Lily Zheng
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, Sichuan Province, China
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, China
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273
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Chen A, Chen X, Jiang X, Wang Y, Chi F, Xie D, Zhou M. Anatomical changes and dosimetric analysis of the neck region based on FBCT for nasopharyngeal carcinoma patients during radiotherapy. JOURNAL OF X-RAY SCIENCE AND TECHNOLOGY 2024; 32:783-795. [PMID: 38457140 DOI: 10.3233/xst-230280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
BACKGROUND The study aimed to investigate anatomical changes in the neck region and evaluate their impact on dose distribution in patients with nasopharyngeal carcinoma (NPC) undergoing intensity modulated radiation therapy (IMRT). Additionally, the study sought to determine the optimal time for replanning during the course of treatment. METHODS Twenty patients diagnosed with NPC underwent IMRT, with weekly pretreatment kV fan beam computed tomography (FBCT) scans in the treatment room. Metastasized lymph nodes in the neck region and organs at risk (OARs) were redelineation using the images from the FBCT scans. Subsequently, the original treatment plan (PLAN0) was replicated to each FBCT scan to generate new plans labeled as PLAN 1-6. The dose-volume histograms (DVH) of the new plans and the original plan were compared. One-way repeated measure ANOVA was utilized to establish threshold(s) at various time points. The presence of such threshold(s) would signify significant change(s), suggesting the need for replanning. RESULTS Progressive volume reductions were observed over time in the neck region, the gross target volume for metastatic lymph nodes (GTVnd), as well as the submandibular glands and parotids. Compared to PLAN0, the mean dose (Dmean) of GTVnd-L significantly increased in PLAN5, while the minimum dose covering 95% of the volume (D95%) of PGTVnd-L showed a significant decrease from PLAN3 to PLAN6. Similarly, the Dmean of GTVnd-R significantly increased from PLAN4 to PLAN6, whereas the D95% of PGTVnd-R exhibited a significant decrease during the same period. Furthermore, the dose of bilateral parotid glands, bilateral submandibular glands, brainstem and spinal cord was gradually increased in the middle and late period of treatment. CONCLUSION Significant anatomical and dosimetric changes were noted in both the target volumes and OARs. Considering the thresholds identified, it is imperative to undertake replanning at approximately 20 fractions. This measure ensures the delivery of adequate doses to target volumes while mitigating the risk of overdosing on OARs.
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Affiliation(s)
- Aoqiang Chen
- Department of Radiation Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, NMPA Key Laboratory for Safety Evaluation of Cosmetics, School of Public Health, Southern Medical University, Guangzhou, China
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Xuemei Chen
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Xiaobo Jiang
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Yajuan Wang
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Feng Chi
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Dehuan Xie
- Department of Radiation Oncology, Guangdong Provincial People's Hospital, Southern Medical University, Guangzhou, China
| | - Meijuan Zhou
- Department of Radiation Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, NMPA Key Laboratory for Safety Evaluation of Cosmetics, School of Public Health, Southern Medical University, Guangzhou, China
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274
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Hijikata H, Mochizuki T, Maeda K, Tanifuji O, Omori G, Yamamoto N, Kawashima H. Varus/valgus stability in imageless robotic-assisted total knee arthroplasty applying three-dimensional assessment of varus/valgus stress X-rays. Biomed Mater Eng 2024; 35:179-189. [PMID: 38043002 DOI: 10.3233/bme-230146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2023]
Abstract
BACKGROUND The postoperative varus/valgus stability assessment in stress X-rays has been established as an evaluation index. However, it is performed by the two-dimensional (2D) method rather than the three-dimensional (3D) method. OBJECTIVE This study aimed to identify the precision and reproducibility of measuring varus/valgus stress X-rays three-dimensionally and to examine varus/valgus stability under anesthesia in imageless robotic assisted total knee arthroplasty (rTKA). METHODS This prospective study analyzed 52 consecutive rTKAs (five males, 67 ± 5.3 years; 47 females, 74 ± 5.9 years). Postoperative varus/valgus stress X-rays in knee extension under anesthesia at manual maximum stress were three-dimensionally assessed by 2D-3D image matching technique using the 3D bone and component models. Varus/valgus angle between components (VV angle) in no stress, valgus stress, varus stress, medial joint opening (MJO), and lateral joint opening (LJO) were evaluated, clarifying this method's precision and reproducibility and valgus/varus stability. RESULTS All parameters' precision and reproducibility had <1° mean differences and high intra- and inter-class correlation coefficients. Bland-Altman plots showed no fixed and proportional bias. Non-stress VV angle, valgus VV angle, varus VV angle, MJO, and LJO were 3.6 ± 1.2°, 1.0 ± 1.4°, 7.1 ± 1.9°, 1.5 ± 1.0 mm, and 2.8 ± 2.7 mm, respectively. CONCLUSION This prospective study demonstrated that (1) the three-dimensional measurement method provided sufficient precision and reproducibility, and (2) the rTKAs could achieve good postoperative varus/valgus stability with a small standard deviation.
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Affiliation(s)
- Hiroki Hijikata
- Division of Orthopaedic Surgery, Department of Regenerative and Transplant Medicine, Niigata University Graduate School of Medicine and Dental Science, Niigata, Japan
| | - Tomoharu Mochizuki
- Division of Orthopaedic Surgery, Department of Regenerative and Transplant Medicine, Niigata University Graduate School of Medicine and Dental Science, Niigata, Japan
| | - Keisuku Maeda
- Department of Orthopaedic Surgery, Niigata Rehabilitation Hospital, Niigata, Japan
| | - Osamu Tanifuji
- Division of Orthopaedic Surgery, Department of Regenerative and Transplant Medicine, Niigata University Graduate School of Medicine and Dental Science, Niigata, Japan
| | - Go Omori
- Department of Health and Sports, Niigata University of Health and Welfare, Niigata, Japan
| | - Noriaki Yamamoto
- Department of Orthopaedic Surgery, Niigata Rehabilitation Hospital, Niigata, Japan
| | - Hiroyuki Kawashima
- Division of Orthopaedic Surgery, Department of Regenerative and Transplant Medicine, Niigata University Graduate School of Medicine and Dental Science, Niigata, Japan
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275
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Souza-Silva LC, Martignago CCS, Motta HG, Bonifacio M, Regina Avanzi I, Assis L, Ribeiro DA, Parisi JR, Rennó AC. A Review of Cartilage Defect Treatments Using Chitosan Hydrogels in Experimental Animal Models. Curr Pharm Biotechnol 2024; 25:1058-1072. [PMID: 37916637 DOI: 10.2174/0113892010245946230919062908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 06/08/2023] [Accepted: 06/20/2023] [Indexed: 11/03/2023]
Abstract
INTRODUCTION Chitosan (CS) is a polycationic polysaccharide comprising glucosamine and N-acetylglucosamine and constitutes a potential material for use in cartilage tissue engineering. Moreover, CS hydrogels are able to promote the expression of cartilage matrix components and reduce inflammatory and catabolic mediator production by chondrocytes. Although all the positive outcomes, no review has analyzed the effects of CS hydrogels on cartilage repair in animal models. METHODS This study aimed to review the literature to examine the effects of CS hydrogels on cartilage repair in experimental animal models. The search was done by the descriptors of the Medical Subject Headings (MeSH) defined below: "Chitosan," "hydrogel," "cartilage repair," and "in vivo." A total of 420 articles were retrieved from the databases Pubmed, Scopus, Embase, Lilacs, and Web of Science. After the eligibility analyses, this review reported 9 different papers from the beginning of 2002 through the middle of 2022. RESULTS It was found that cartilage repair was improved with the treatment of CS hydrogel, especially the one enriched with cells. In addition, CS hydrogel produced an upregulation of genes and proteins that act in the cartilage repair process, improving the biomechanical properties of gait.. CONCLUSION In conclusion, CS hydrogels were able to stimulate tissue ingrowth and accelerate the process of cartilage repair in animal studies.
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Affiliation(s)
- Lais Caroline Souza-Silva
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Silva Jardim Street, 136, Santos, SP, 11015020, Brazil
| | | | - Homero Garcia Motta
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Silva Jardim Street, 136, Santos, SP, 11015020, Brazil
| | - Mirian Bonifacio
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Silva Jardim Street, 136, Santos, SP, 11015020, Brazil
| | - Ingrid Regina Avanzi
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Silva Jardim Street, 136, Santos, SP, 11015020, Brazil
| | - Lívia Assis
- Scientific and Technological Institute, Brazil University, São Paulo, 08230-030, Brazil
| | - Daniel Araki Ribeiro
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Silva Jardim Street, 136, Santos, SP, 11015020, Brazil
| | - Julia Risso Parisi
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Silva Jardim Street, 136, Santos, SP, 11015020, Brazil
- Metropolitan University of Santos (UNIMES), General Francisco Glicério Avenue, 8, Santos, SP, 11045-002, Brazil
| | - Ana Claudia Rennó
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Silva Jardim Street, 136, Santos, SP, 11015020, Brazil
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276
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Rana N, Gupta P, Singh H, Nagarajan K. Role of Bioactive Compounds, Novel Drug Delivery Systems, and Polyherbal Formulations in the Management of Rheumatoid Arthritis. Comb Chem High Throughput Screen 2024; 27:353-385. [PMID: 37711009 DOI: 10.2174/1386207326666230914103714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 07/04/2023] [Accepted: 07/24/2023] [Indexed: 09/16/2023]
Abstract
Rheumatoid Arthritis (RA) is an autoimmune disorder that generally causes joint synovial inflammation as well as gradual cartilage and degenerative changes, resulting in progressive immobility. Cartilage destruction induces synovial inflammation, including synovial cell hyperplasia, increased synovial fluid, and synovial pane development. This phenomenon causes articular cartilage damage and joint alkalosis. Traditional medicinal system exerts their effect through several cellular mechanisms, including inhibition of inflammatory mediators, oxidative stress suppression, cartilage degradation inhibition, increasing antioxidants and decreasing rheumatic biomarkers. The medicinal plants have yielded a variety of active constituents from various chemical categories, including alkaloids, triterpenoids, steroids, glycosides, volatile oils, flavonoids, lignans, coumarins, terpenes, sesquiterpene lactones, anthocyanins, and anthraquinones. This review sheds light on the utilization of medicinal plants in the treatment of RA. It explains various phytoconstituents present in medicinal plants and their mechanism of action against RA. It also briefs about the uses of polyherbal formulations (PHF), which are currently in the market and the toxicity associated with the use of medicinal plants and PHF, along with the limitations and research gaps in the field of PHF. This review paper is an attempt to understand various mechanistic approaches employed by several medicinal plants, their possible drug delivery systems and synergistic effects for curing RA with minimum side effects.
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Affiliation(s)
- Neha Rana
- KIET School of Pharmacy, KIET Group of Institutions, Delhi-NCR, Ghaziabad, 201206, Uttar Pradesh, India
| | - Piyush Gupta
- Department of Chemistry, SRM Institute of Science and Technology, Faculty of Engineering and Technology, NCR Campus, Delhi-NCR Campus, Delhi-Meerut Road, Modinagar, 201204, Ghaziabad, Uttar Pradesh, India
| | - Hridayanand Singh
- Dr. K. N. Modi Institute of Pharmaceutical Education and Research, Modinagar, 201204, Uttar Pradesh, India
| | - Kandasamy Nagarajan
- KIET School of Pharmacy, KIET Group of Institutions, Delhi-NCR, Ghaziabad, 201206, Uttar Pradesh, India
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277
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Mukherjee D, Bhavnani S, Lockwood Estrin G, Rao V, Dasgupta J, Irfan H, Chakrabarti B, Patel V, Belmonte MK. Digital tools for direct assessment of autism risk during early childhood: A systematic review. AUTISM : THE INTERNATIONAL JOURNAL OF RESEARCH AND PRACTICE 2024; 28:6-31. [PMID: 36336996 PMCID: PMC10771029 DOI: 10.1177/13623613221133176] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
LAY ABSTRACT The challenge of finding autistic children, and finding them early enough to make a difference for them and their families, becomes all the greater in parts of the world where human and material resources are in short supply. Poverty of resources delays interventions, translating into a poverty of outcomes. Digital tools carry potential to lessen this delay because they can be administered by non-specialists in children's homes, schools or other everyday environments, they can measure a wide range of autistic behaviours objectively and they can automate analysis without requiring an expert in computers or statistics. This literature review aimed to identify and describe digital tools for screening children who may be at risk for autism. These tools are predominantly at the 'proof-of-concept' stage. Both portable (laptops, mobile phones, smart toys) and fixed (desktop computers, virtual-reality platforms) technologies are used to present computerised games, or to record children's behaviours or speech. Computerised analysis of children's interactions with these technologies differentiates children with and without autism, with promising results. Tasks assessing social responses and hand and body movements are the most reliable in distinguishing autistic from typically developing children. Such digital tools hold immense potential for early identification of autism spectrum disorder risk at a large scale. Next steps should be to further validate these tools and to evaluate their applicability in a variety of settings. Crucially, stakeholders from underserved communities globally must be involved in this research, lest it fail to capture the issues that these stakeholders are facing.
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Affiliation(s)
- Debarati Mukherjee
- Indian Institute of Public Health - Bengaluru, Public Health Foundation of India, India
| | | | | | - Vaisnavi Rao
- Institute for Democracy and Economic Affairs (IDEAS), Malaysia
| | | | | | | | - Vikram Patel
- Child Development Group, Sangath, India
- Harvard Medical School, USA
- Harvard T.H. Chan School of Public Health, USA
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278
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Yang Y, Inoue G, Hosaka K, Tichy A, Ikeda M, Tagami J, Shimada Y. The Effect of a Deproteinizing Pretreatment on the Bonding Performance and Acid Resistance of a Two-step Self-etch Adhesive on Eroded Dentin. Oper Dent 2024; 49:65-75. [PMID: 38019217 DOI: 10.2341/23-005-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/02/2023] [Indexed: 11/30/2023]
Abstract
OBJECTIVES This study evaluated how deproteinization using sodium hypochlorite (6% NaOCl) or hypochlorous acid (50 ppm HOCl) with or without the subsequent use of an arylsulfinate salt-containing agent (Clearfil DC Activator; DCA; Kuraray Noritake Dental) affects the micro-tensile bond strength (μTBS) and formation of an acid-base resistant zone (ABRZ) of a two-step self-etch adhesive on eroded dentin. METHODS Coronal dentin surfaces of sound human molars were exposed to 48 cycles of demineralization (1% citric acid; 5 minutes) and remineralization (buffer solution with pH=6.4; 3.5 hours). They were then assigned to experimental groups according to the pretreatment used: none (negative control), NaOCl, NaOCl+DCA, HOCl, and HOCl+DCA. Sound dentin surfaces with no pretreatment were used as a positive control. The dentin surfaces were bonded with Clearfil SE Bond 2 (Kuraray Noritake Dental), and μTBS was measured either after 24 hours or 20,000 thermal cycles (TC). The μTBS data were statistically analyzed using a mixed-model analysis of variance (ANOVA) and t-tests with Bonferroni correction. Failure mode was determined with scanning electron microscopy (SEM), which was also used for the observation of ABRZ. RESULTS Among experimental groups, there was no significant difference between the negative control, HOCl, and HOCl+DCA after 24 hours, but the HOCl-pretreated groups exhibited significantly higher μTBS than the negative control after TC (p<0.01). Pretreatment with NaOCl and NaOCl+DCA resulted in significantly higher μTBS (p<0.001), but the highest μTBS was measured on sound dentin (p<0.001). TC decreased μTBS significantly in all groups (p<0.001) except for sound dentin and NaOCl+DCA (p>0.05). Adhesive failures prevailed in eroded groups, whereas cohesive failures were predominant on sound dentin. ABRZ was recognized in all groups but marked morphological differences were observed. CONCLUSIONS The combined use of 6% NaOCl and the arylsulfinate salt-containing agent partially reversed the compromised bonding performance on eroded dentin, while the effect of 50 ppm HOCl was negligible.
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Affiliation(s)
- Y Yang
- Yi Yang, DDS, PhD student, Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - G Inoue
- *Go Inoue, DDS, PhD, Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - K Hosaka
- Keiichi Hosaka, DDS, PhD, Department of Regenerative Dental Medicine, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - A Tichy
- Antonin Tichy, DDS, PhD, Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan; Institute of Dental Medicine, First Faculty of Medicine of the Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - M Ikeda
- Masaomi Ikeda, DDS, PhD, Department of Oral Prosthetic Engineering, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - J Tagami
- Junji Tagami, DDS, PhD, Department of Operative Dentistry, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Y Shimada
- Yasushi Shimada, DDS, PhD, Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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279
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Askaripour K, Żak A. A systematic review on cellular responses of Escherichia coli to nonthermal electromagnetic irradiation. Bioelectromagnetics 2024; 45:16-29. [PMID: 37807247 DOI: 10.1002/bem.22484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 06/23/2023] [Accepted: 08/07/2023] [Indexed: 10/10/2023]
Abstract
Investigation of Escherichia coli under electromagnetic fields is of significance in human studies owing to its short doubling time and human-like DNA mechanisms. The present review aims to systematically evaluate the literature to conclude causality between 0 and 300 GHz electromagnetic fields and biological effects in E. coli. To that end, the OHAT methodology and risk of bias tool were employed. Exponentially growing cells exposed for over 30 min at temperatures up to3 7 ∘ C $3{7}^{\circ }\,{\rm{C}}$ with fluctuations below1 ∘ C ${1}^{\circ }\,{\rm{C}}$ were included from the Web-of-Knowledge, PubMed, or EMF-Portal databases. Out of 904 records identified, 25 articles satisfied the selection criteria, with four excluded during internal validation. These articles examined cell growth (11 studies), morphology (three studies), and gene regulation (11 studies). Most experiments (85%) in the included studies focused on the extremely low-frequency (ELF) range, with 60% specifically at 50 Hz. Changes in growth rate were observed in 74% of ELF experiments and 71% of radio frequency (RF) experiments. Additionally, 80% of ELF experiments showed morphology changes, while gene expression changes were seen in 33% (ELF) and 50% (RF) experiments. Due to the limited number of studies, especially in the intermediate frequency and RF ranges, establishing correlations between EMF exposure and biological effects on E. coli is not possible.
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Affiliation(s)
- Khadijeh Askaripour
- Department of Biomechatronics, Gdansk University of Technology, Gdansk, Pomorskie, Poland
| | - Arkadiusz Żak
- Department of Biomechatronics, Gdansk University of Technology, Gdansk, Pomorskie, Poland
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280
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Gao C, Feng A, Liu X, Taylor RH, Armand M, Unberath M. A Fully Differentiable Framework for 2D/3D Registration and the Projective Spatial Transformers. IEEE TRANSACTIONS ON MEDICAL IMAGING 2024; 43:275-285. [PMID: 37549070 PMCID: PMC10879149 DOI: 10.1109/tmi.2023.3299588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
Abstract
Image-based 2D/3D registration is a critical technique for fluoroscopic guided surgical interventions. Conventional intensity-based 2D/3D registration approa- ches suffer from a limited capture range due to the presence of local minima in hand-crafted image similarity functions. In this work, we aim to extend the 2D/3D registration capture range with a fully differentiable deep network framework that learns to approximate a convex-shape similarity function. The network uses a novel Projective Spatial Transformer (ProST) module that has unique differentiability with respect to 3D pose parameters, and is trained using an innovative double backward gradient-driven loss function. We compare the most popular learning-based pose regression methods in the literature and use the well-established CMAES intensity-based registration as a benchmark. We report registration pose error, target registration error (TRE) and success rate (SR) with a threshold of 10mm for mean TRE. For the pelvis anatomy, the median TRE of ProST followed by CMAES is 4.4mm with a SR of 65.6% in simulation, and 2.2mm with a SR of 73.2% in real data. The CMAES SRs without using ProST registration are 28.5% and 36.0% in simulation and real data, respectively. Our results suggest that the proposed ProST network learns a practical similarity function, which vastly extends the capture range of conventional intensity-based 2D/3D registration. We believe that the unique differentiable property of ProST has the potential to benefit related 3D medical imaging research applications. The source code is available at https://github.com/gaocong13/Projective-Spatial-Transformers.
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Hengsomboon N, Vongsirinavarat M, Bovonsunthonchai S, Thawalyawichachit L, Hengsomboon P. Association of scoliosis with lower extremity alignments, muscle strengths, and foot characteristics and their alterations in adolescent idiopathic scoliosis. J Back Musculoskelet Rehabil 2024; 37:975-987. [PMID: 38427464 DOI: 10.3233/bmr-230220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/03/2024]
Abstract
BACKGROUND The association between changes occurring in the spine and lower body parts is not well understood in adolescent idiopathic scoliosis (AIS). OBJECTIVES The first aim of the study was to investigate the association of scoliosis with lower extremity (LE) alignments, foot characteristics, and muscle strengths in adolescents. Secondly, comparisons of the data among AIS with single and double curves and control groups were determined. METHODS Thirty-one participants were recruited and classified into 3 groups; AIS with a single curve (n= 7), AIS with double curves (n= 14), and controls (n= 10). Association of the presence of scoliosis with LE alignments (Q and TC angles), LE muscle strengths (hip, knee, and ankle), and foot characteristics (arch indexes) were examined using the point biserial correlation, and the data among three groups were compared using the ANOVA. RESULTS Scoliosis was associated with Q angle, arch indexes, and all LE muscle strengths except for hip extensors and ankle plantar flexors strengths. Comparisons among the three groups showed significant increases in LE alignments and foot characteristics in AIS. Almost all LE muscle strengths decreased in AIS, especially for the single curve group. CONCLUSIONS Apart from spinal deformity, the AIS has changed in LE alignments, muscle strengths, and foot characteristics. Therapists should consider these associations and alterations for designing proper management.
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282
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Hao C, Su R, Dong C, Zhang J, Chi Z, Meng F, Zhao R, Wu Y, Wang L, Li P, Chen C, Lian Q, Cheng L. Detection method for unrecognized spatial disorientation based on optical flow stimuli. Technol Health Care 2024; 32:339-349. [PMID: 38669499 PMCID: PMC11191483 DOI: 10.3233/thc-248030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2024]
Abstract
BACKGROUND Flight accidents caused by spatial disorientation (SD) greatly affect flight safety. OBJECTIVE Few studies have been devoted to the evaluation of SD. METHODS 10 pilots and 10 non-pilots were recruited for the experimental induction of SD. Videos for giving optical flow stimuli were played at two different flow speeds to induce SD. Subjective judgment and center of foot pressure (CoP) data were collected from the tests. The data were combined to determine the occurrence of SD and analyze the SD types. RESULTS The number of self-reported SD events was slightly smaller in the pilots than in the non-pilots. The average upper bound of the confidence interval for the standard deviation of CoP was 0.32 ± 0.09 cm and 0.38 ± 0.12 cm in the pilots and non-pilots, respectively. This indicator was significantly lower in the pilots than in the non-pilots (P= 0.03). The success rate of the experimental induction of unrecognized SD was 26.7% and 45.0% in the pilots and non-pilots, respectively. CONCLUSION The method offered a new to analyze unrecognized SD. We could determine the occurrence unrecognized SD. This is an essential means of reducing flight accidents caused by unrecognized SD.
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Affiliation(s)
- Chenru Hao
- Department of Medical Physics, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Rui Su
- Department of Medical Physics, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Chunnan Dong
- Department of Pathogenic Biology, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Jingjing Zhang
- Department of Medical Physics, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Ziqiang Chi
- Department of Medical Physics, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Fanzhen Meng
- Key Laboratory of Medical Imaging Research and Application of Hebei Province, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Ruibin Zhao
- Department of Medical Physics, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Yanru Wu
- Department of Medical Physics, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Linlin Wang
- Key Laboratory of Medical Imaging Research and Application of Hebei Province, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Pengfei Li
- Key Laboratory of Medical Imaging Research and Application of Hebei Province, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Chengwei Chen
- Key Laboratory of Medical Imaging Research and Application of Hebei Province, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Qingjie Lian
- Key Laboratory of Medical Imaging Research and Application of Hebei Province, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Li Cheng
- Department of Medical Physics, Hebei Medical University, Shijiazhuang, Hebei, China
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283
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Wang J, Liu H, Yue G, Deng Y, Cai W, Xu J. Human placenta-derived mesenchymal stem cells ameliorate diabetic kidney disease by modulating the T helper 17 cell/ regulatory T-cell balance through the programmed death 1 / programmed death-ligand 1 pathway. Diabetes Obes Metab 2024; 26:32-45. [PMID: 37722965 DOI: 10.1111/dom.15282] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/23/2023] [Accepted: 08/29/2023] [Indexed: 09/20/2023]
Abstract
AIM To investigate the therapeutic effects and immunomodulatory mechanisms of human placenta-derived mesenchymal stem cells (PMSCs) in diabetic kidney disease (DKD). METHODS Streptozotocin-induced DKD rats were administered an equivalent volume of saline or PMSCs (1 × 106 in 2 mL phosphate-buffered saline per rat) for 3 weeks. Eight weeks after treatment, we examined the biochemical parameters in the blood and urine, the ratio of T helper 17 cells (Th17) and regulatory T cells (Treg) in the blood, cytokine levels in the kidney and blood, and renal histopathological changes. In addition, we performed PMSC tracing and renal transcriptomic analyses using RNA-sequencing. Finally, we determined whether PMSCs modulated the Th17/Treg balance by upregulating programmed death 1 (PD-1) in vitro. RESULTS The PMSCs significantly improved renal function, which was assessed by serum creatinine levels, urea nitrogen, cystatin C levels, urinary albumin-creatinine ratio, and the kidney index. Further, PMSCs alleviated pathological changes, including tubular vacuolar degeneration, mesangial matrix expansion, and glomerular filtration barrier injury. In the DKD rats in our study, PMSCs were mainly recruited to immune organs, rather than to the kidney or pancreas. PMSCs markedly promoted the Th17/Treg balance and reduced the levels of pro-inflammatory cytokines (interleukin [IL]-17A and IL-1β) in the kidney and blood of DKD rats. In vitro experiments showed that PMSCs significantly reduced the proportion of Th17 cells and increased the proportion of Treg cells by upregulating PD-1 in a cell-cell contact manner and downregulating programmed death-ligand 1 (PD-L1) expression in PMSCs, which reversed the Th17/Treg balance. CONCLUSION We found that PMSCs improved renal function and pathological damage in DKD rats and modulated Th17/Treg balance through the PD-1/PD-L1 pathway. These findings provide a novel mechanism and basis for the clinical use of PMSCs in the treatment of DKD.
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Affiliation(s)
- Jiao Wang
- Department of Endocrinology and Metabolism, First Affiliated Hospital of Nanchang University, Nanchang, China
- Jiangxi Clinical Research Center for Endocrine and Metabolic Disease, Nanchang, China
- Jiangxi Branch of National Clinical Research Center for Metabolic Disease, Nanchang, China
| | - Honghong Liu
- Department of Endocrinology and Metabolism, First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Guanru Yue
- Department of Endocrinology and Metabolism, First Affiliated Hospital of Nanchang University, Nanchang, China
- Department of Medical Genetics and Cell Biology, Medical College of Nanchang University, Nanchang, China
| | - Yuanyuan Deng
- Department of Endocrinology and Metabolism, First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Wei Cai
- Department of Medical Genetics and Cell Biology, Medical College of Nanchang University, Nanchang, China
| | - Jixiong Xu
- Department of Endocrinology and Metabolism, First Affiliated Hospital of Nanchang University, Nanchang, China
- Jiangxi Clinical Research Center for Endocrine and Metabolic Disease, Nanchang, China
- Jiangxi Branch of National Clinical Research Center for Metabolic Disease, Nanchang, China
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284
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Alqeeq BF, Ayyad M, Almadhoun WJ, Aboabdo M, Aldahdouh MS, Al-Tawil M, Al-Ghazali AM. Sex-related differences in Cushing's disease: a systematic review and meta-analysis. Ann Saudi Med 2024; 44:55-65. [PMID: 38311874 PMCID: PMC10839456 DOI: 10.5144/0256-4947.2024.55] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 09/14/2023] [Indexed: 02/06/2024] Open
Abstract
BACKGROUND AND OBJECTIVES Cushing's disease is a rare endocrine disorder. This review aimed to examine sex-specific differences in Cushing's disease. DESIGN AND SETTINGS A meta-analysis was performed on published articles discussing the gender impact of Cushing's disease. METHODS A systematic search was conducted to identify studies from Medline, Embase, CENTRAL and Scopus. Nine studies enrolling 1047 patients diagnosed with Cushing's disease were included in this meta-analysis. RESULTS Male patients presented at a younger age (MD [mean difference]=-5.43; 95% CI [-5.78, -5.08]; P<.00001) than females. Male patients had a significantly higher prevalence of osteoporosis (RR [risk ratio]=1.75; 95% CI [1.36, 225]; P<.0001) and hypokalemia (RR=1.66; 95% CI [1.27, 2.16]; P=.0002). In addition, males had significantly higher rates of negative magnetic resonance imaging (RR=1.53; 95% CI [1.18, 2.0]; P=.002). No sex difference was observed in the prevalence of diabetes (RR=0.92; 95% CI [0.70, 1.22]); P=.57) and dyslipidemia (RR=1.33; 95% CI [0.88, 2.0]; P=.17). CONCLUSION Cushing's disease has a worse clinical presentation in males and more diagnostic difficulties compared to females.
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Affiliation(s)
- Basel F. Alqeeq
- From the Faculty of Medicine, Islamic University of Gaza, Gaza, Palestine
| | - Mohammed Ayyad
- From the Faculty of Medicine, Al-Quds University, Jerusalem, Palestine
| | | | - Mohammad Aboabdo
- From the Faculty of Medicine, Islamic University of Gaza, Gaza, Palestine
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285
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Sen P, Roy Acharyya S, Arora A, Ghosh SS. An in-silico approach to understand the potential role of Wnt inhibitory factor-1 (WIF-1) in the inhibition of the Wnt signalling pathway. J Biomol Struct Dyn 2024; 42:326-345. [PMID: 36995086 DOI: 10.1080/07391102.2023.2192810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 03/12/2023] [Indexed: 03/31/2023]
Abstract
WIF1 (Wnt inhibitory factor 1) is a potent tumour suppressor gene which is epigenetically silenced in numerous malignancies. The associations of WIF1 protein with the Wnt pathway molecules have not been fully explored, despite their involvement in the downregulation of several malignancies. In the present study, a computational approach encompassing the expression, gene ontology analysis and pathway analysis is employed to obtain an insight into the role of the WIF1 protein. Moreover, the interaction of the WIF1 domain with the Wnt pathway molecules was carried out to ascertain the tumour-suppressive role of the domain, along with the determination of their plausible interactions. Initially, the protein-protein interaction network analysis endowed us with the Wnt ligands (such as Wnt1, Wnt3a, Wnt4, Wnt5a, Wnt8a and Wnt9a), along with the Frizzled receptors (Fzd1 and Fzd2) and the low-density lipoprotein complex (Lrp5/6) as the foremost interactors of the protein. Further, the expression analysis of the aforementioned genes and proteins was determined using The Cancer Genome Atlas to comprehend the significance of the signalling molecules in the major cancer subtypes. Moreover, the associations of the aforementioned macromolecular entities with the WIF1 domain were explored using the molecular docking studies, whereas the dynamics and stability of the assemblage were investigated using 100 ns molecular dynamics simulations. Therefore, providing us insights into the plausible roles of WIF1 in inhibiting the Wnt pathways in various malignancies.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Plaboni Sen
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Suchandra Roy Acharyya
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Arisha Arora
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Siddhartha Sankar Ghosh
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati, Assam, India
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286
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Zhao Q, Zhao Z, Zhang J, Ni Y, Ouyang S, Qi H, Yu Y, Miron RJ, Tang H, Zhang Y. Fn-HMGB1 Adsorption Behavior Initiates Early Immune Recognition and Subsequent Osteoinduction of Biomaterials. Adv Healthc Mater 2024; 13:e2301808. [PMID: 37602504 DOI: 10.1002/adhm.202301808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 08/11/2023] [Indexed: 08/22/2023]
Abstract
Implantable biomaterials are widely used in bone tissue engineering, but little is still known about how they initiate early immune recognition and the initial dynamics. Herein, the early immune recognition and subsequent osteoinduction of biphasic calcium phosphate (BCP) after implantation to the protein adsorption behavior is attributed. By liquid chromatography tandem mass spectrometry (LC-MS/MS) analysis, the biomaterial-related molecular patterns (BAMPs) formed after BCP implantation are mapped, dominated by the highly expressed extracellular matrix protein fibronectin (Fn) and the high mobility group box 1 (HMGB1). Molecular dynamics simulations show that Fn has the ability to bind more readily to the BCP surface than HMGB1. The preferential binding of Fn provides a higher adsorption energy for HMGB1. Furthermore, multiple hydrogen bonding sites between HMGB1 and Fn are demonstrated using a molecular docking approach. Ultimately, the formation of BAMPs through HMGB1 antagonist glycyrrhizic acid (GA), resulting in impaired immune recognition of myeloid differentiation factor 88 (MYD88) mediated dendritic cells (DCs) and macrophages (Mφs), as well as failed osteoinduction processes is obstructed. This study introduces a mechanism for early immune recognition of implant materials based on protein adsorption, providing perspectives for future design and application of tissue engineering materials.
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Affiliation(s)
- Qin Zhao
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, 430079, China
- Medical Research Institute, School of Medicine, Wuhan University, Wuhan, 430071, China
| | - Zifan Zhao
- Center of Digital Dentistry, Faculty of Prosthodontics, Peking University School and Hospital of Stomatology; National Center of Stomatology; National Engineerœing Research Center of Oral Biomaterials and Digital Medical Devices; Beijing Key Laboratory of Digital Stomatology; Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, National Clinical Research Center for Oral Diseases, Beijing, 100081, China
| | - Jing Zhang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, 430079, China
- Medical Research Institute, School of Medicine, Wuhan University, Wuhan, 430071, China
| | - Yueqi Ni
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, 430079, China
- Medical Research Institute, School of Medicine, Wuhan University, Wuhan, 430071, China
| | - Simin Ouyang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, 430079, China
- Medical Research Institute, School of Medicine, Wuhan University, Wuhan, 430071, China
| | - Haoning Qi
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, 430079, China
- Medical Research Institute, School of Medicine, Wuhan University, Wuhan, 430071, China
| | - Yiqian Yu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, 430079, China
- Medical Research Institute, School of Medicine, Wuhan University, Wuhan, 430071, China
| | - Richard J Miron
- Department of Periodontology, University of Bern, Bern, 300392, Switzerland
| | - Hua Tang
- Department of Rheumatology and Autoimmunology, Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, 250000, China
- Institute of Infection and Immunity, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, 250000, China
| | - Yufeng Zhang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, 430079, China
- Medical Research Institute, School of Medicine, Wuhan University, Wuhan, 430071, China
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287
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Hussain A, Marlowe S, Ali M, Uy E, Bhopalwala H, Gullapalli D, Vangara A, Haroon M, Akbar A, Piercy J. A Systematic Review of Artificial Intelligence Applications in the Management of Lung Disorders. Cureus 2024; 16:e51581. [PMID: 38313926 PMCID: PMC10836179 DOI: 10.7759/cureus.51581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/02/2024] [Indexed: 02/06/2024] Open
Abstract
This systematic review examines the transformative impact of artificial intelligence (AI) in managing lung disorders through a comprehensive analysis of articles spanning 2014 to 2023. Evaluating AI's multifaceted roles in radiological imaging, disease burden prediction, detection, diagnosis, and molecular mechanisms, this review presents a critical synthesis of key insights from select articles. The findings underscore AI's significant strides in bolstering diagnostic accuracy, interpreting radiological imaging, predicting disease burdens, and deepening the understanding of tuberculosis (TB), chronic obstructive pulmonary disease (COPD), silicosis, pneumoconiosis, and lung fibrosis. The synthesis positions AI as a revolutionary tool within the healthcare system, offering vital implications for healthcare workers, policymakers, and researchers in comprehending and leveraging AI's pivotal role in lung disease management.
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Affiliation(s)
- Akbar Hussain
- Internal Medicine, Appalachian Regional Healthcare, Harlan, USA
| | - Stanley Marlowe
- Internal Medicine, Appalachian Regional Healthcare, Harlan, USA
| | - Muhammad Ali
- Pulmonary and Critical Care, Appalachian Regional Healthcare, Hazard, USA
| | - Edilfavia Uy
- Diabetes and Endocrinology, Appalachian Regional Healthcare, Whitesburg, USA
| | - Huzefa Bhopalwala
- Internal Medicine, Appalachian Regional Healthcare, Whitesburg, USA
- Cardiovascular, Mayo Clinic, Rochester, USA
| | | | - Avinash Vangara
- Internal Medicine, Appalachian Regional Healthcare, Harlan, USA
| | - Moeez Haroon
- Internal Medicine, Appalachian Regional Healthcare, Harlan, USA
| | - Aelia Akbar
- Public Health, Appalachian Regional Healthcare, Harlan, USA
| | - Jonathan Piercy
- Internal Medicine, Appalachian Regional Healthcare, Whitesburg, USA
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288
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Wang Y, Xu C, Yang B, Yu F, Guo A. Finite Element Analysis of the Effect of Femoral Prosthesis Varus and Valgus Angle Installation on the Lateral Compartment in Unicompartmental Knee Arthroplasty. J NIPPON MED SCH 2024; 91:88-98. [PMID: 38462443 DOI: 10.1272/jnms.jnms.2024_91-110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
BACKGROUND This study used finite element analysis (FEA) to investigate the effect of varus and valgus angle on the lateral compartment in unicompartmental knee arthroplasty (UKA). METHODS One patient who underwent UKA was enrolled as the subject. Thirteen working conditions of the femoral prosthesis were simulated at varus and valgus angles of 0°, 2°, 4°, 6°, 8°, 10°, and 12°. A load of 1,000 N was applied downward along the mechanical axis of the femur, and the highest stress values on the surface of the polyethylene liner, cancellous bone under the tibial prosthesis, cartilage of femur lateral condyle, lateral meniscus, and tibial lateral plateau cartilage in each model were recorded. The six highest points were used to calculate the mean value. RESULTS The highest stress values on the surface of the polyethylene liner, cancellous bone under the tibial prosthesis, cartilage of femur lateral condyle, lateral meniscus, and tibial lateral plateau cartilage increased with an increase in the femoral prosthesis varus/valgus angle. As compared with the standard position of the femoral prosthesis, there was no significant difference in the surface stress values of the polyethylene liner, cancellous bone under the tibial prosthesis, cartilage of femur lateral condyle, lateral meniscus and tibial lateral plateau cartilage when the femoral prosthesis varus/valgus angle was less than 4° (p > 0.05). In addition, the stress magnitude on the polyethylene liner, cancellous bone under the tibial prosthesis, cartilage of femur lateral condyle, lateral meniscus, and tibial lateral plateau cartilage significantly increased when the femoral prosthesis varus/valgus angle was greater than 4° (p < 0.001). CONCLUSIONS The optimal femoral prosthesis varus/valgus angle in UKA was less than 4°.
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Affiliation(s)
- Yonggui Wang
- Department of Orthopedic Surgery, Beijing Friendship Hospital, Capital Medical University
- Department of Orthopedics, Xiangyang No. 1 People's Hospital, Hubei University of Medicine
| | - Chongyang Xu
- Department of Orthopedic Surgery, Beijing Friendship Hospital, Capital Medical University
| | - Bo Yang
- Department of Orthopedic Surgery, Beijing Friendship Hospital, Capital Medical University
| | - Fei Yu
- Department of Orthopedic Surgery, Beijing Friendship Hospital, Capital Medical University
| | - Ai Guo
- Department of Orthopedic Surgery, Beijing Friendship Hospital, Capital Medical University
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289
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Sakoda H, Tsuboko Y, Okamoto Y, Yamamoto E, Imagama T, Sakai T, Hamada H, Sugano N. Lipid index to quantify the absorbed lipids in retrieved UHMWPE components of joint arthroplasty. Biomed Mater Eng 2024; 35:293-302. [PMID: 38277279 DOI: 10.3233/bme-230183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2024]
Abstract
BACKGROUND The ultra-high molecular weight polyethylene (UHMWPE) component of artificial joints is one of the most important factors affecting the clinical outcomes of joint arthroplasty. Although the possibility of in vivo UHMWPE degradation caused by absorbed lipids has been reported, a quantitative evaluation of this phenomenon has not yet been performed. OBJECTIVE This study aimed to establish the lipid index (LI) as a quantitative indicator of the amount of absorbed lipids and the first step to quantify their effects on UHMWPE. METHODS The LI was defined using the infrared spectrum obtained with a Fourier-transform infrared spectrophotometer and verified using the retrieved UHMWPE components. RESULTS The LI was consistent with the amount of extract recovered in reflux extraction with hexane. In addition, the LI could replace lipid extraction for calculating the oxidation index (OI) because the value obtained by subtracting the LI from the OI showed good agreement with the OI obtained after lipid extraction. CONCLUSION The LI represents the amount of lipids absorbed by UHMWPE and is useful for quantitatively evaluating the effects of lipids on UHMWPE. In addition, the LI enables OI measurements that are unaffected by absorbed lipids without requiring troublesome lipid-extraction procedures.
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Affiliation(s)
- Hideyuki Sakoda
- Division of Medical Devices, National Institute of Health Sciences, Kawasaki, Japan
| | - Yusuke Tsuboko
- Division of Medical Devices, National Institute of Health Sciences, Kawasaki, Japan
| | - Yoshihiro Okamoto
- Division of Medical Devices, National Institute of Health Sciences, Kawasaki, Japan
| | - Eiichi Yamamoto
- Division of Medical Devices, National Institute of Health Sciences, Kawasaki, Japan
| | - Takashi Imagama
- Department of Orthopaedic Surgery, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Takashi Sakai
- Department of Orthopaedic Surgery, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Hidetoshi Hamada
- Department of Orthopaedic Medical Engineering, Osaka University Graduate School of Medicine, Suita, Japan
| | - Nobuhiko Sugano
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Suita, Japan
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290
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Yingjun M, Shuo T, Liuyun J, Yan Z, Shengpei S. Study on a co-hybrid nano-hydroxyapatite with lignin derivatives and alendronate and the reinforce effect for poly(lactide-co-glycolide). Int J Biol Macromol 2023; 253:126785. [PMID: 37696379 DOI: 10.1016/j.ijbiomac.2023.126785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 09/03/2023] [Accepted: 09/05/2023] [Indexed: 09/13/2023]
Abstract
A novel co-hybrid nano-apatite (n-HA) by introducing lignin derivatives (LDs) and alendronate (ALE) was designed to reinforce poly(lactide-co-glycolide) (PLGA). The effect of different addition methods and contents of LDs, lignin derivatives sorts of lignosulfonate (LS), alkali lignin (AL) and carboxymethyl lignin (CML), and the addition order of ALE on the dispersion of hybrid n-HA, and reinforce effective for PLGA were investigated by FTIR, XRD, TEM, TGA, XPS, N2 adsorption/desorption, zeta potential, dispersion experiments, universal testing machine, SEM, DSC and POM. The results showed that the addition order could regulate the growth of n-HA crystal planes by binding with Ca2+, and co-hybrid HA by LDs and ALE possessed better dispersion owing to the synergistic effect. Moreover, 10 wt% LS-ALE-n-HA displayed the best reinforce effect, and the tensile strength of composite was 24.43 % higher than that of PLGA, even 15 wt% LS-ALE-n-HA was added, it still exhibited reinforce effect for PLGA. In vitro soaking in simulated body fluid (SBF) results indicated that LS-ALE-n-HA delayed tensile strength reduce of PLGA and promoted bone-like apatite deposition. The cell proliferation results demonstrated that the hybrid n-HA by the introduction of ALE endowed PLGA with better cell adhesion and proliferation.
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Affiliation(s)
- Ma Yingjun
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China; Key Laboratory of Light Energy Conversion Materials of Hunan Province College, Hunan Normal University, Changsha, Hunan 410081, China
| | - Tang Shuo
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China; Key Laboratory of Light Energy Conversion Materials of Hunan Province College, Hunan Normal University, Changsha, Hunan 410081, China
| | - Jiang Liuyun
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China; Key Laboratory of Light Energy Conversion Materials of Hunan Province College, Hunan Normal University, Changsha, Hunan 410081, China.
| | - Zhang Yan
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China; Key Laboratory of Light Energy Conversion Materials of Hunan Province College, Hunan Normal University, Changsha, Hunan 410081, China
| | - Su Shengpei
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China; Key Laboratory of Light Energy Conversion Materials of Hunan Province College, Hunan Normal University, Changsha, Hunan 410081, China
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291
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Mohseni P, Soufi A, Chrcanovic BR. Clinical outcomes of zirconia implants: a systematic review and meta-analysis. Clin Oral Investig 2023; 28:15. [PMID: 38135804 PMCID: PMC10746607 DOI: 10.1007/s00784-023-05401-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 12/04/2023] [Indexed: 12/24/2023]
Abstract
PURPOSE To assess the clinical outcomes of zirconia dental implants based on an updated systematic literature review. METHODS An electronic search was performed in three databases, last updated in June 2023, supplemented by hand searching. The eligibility criteria were clinical studies reporting patients rehabilitated with zirconia implants. The cumulative survival rate (CSR) of implants was calculated. A meta-analysis for marginal bone loss (MBL) under different follow-up times and a meta-regression assessing the relationship between mean MBL and follow-up were done. RESULTS Twenty-five studies were included (4017 implants, 2083 patients). Seven studies had follow-up longer than 60 months. 172 implants failed, after a mean of 12.0 ± 16.1 months (min-max 0.3-86.0), of which 47 early failures, and 26 due to implant fracture, the majority in narrow-diameter implants. The 10-year CSR was 95.1%. Implants with coronal part prepared by drills presented statistically significant lower survival than non-prepared implants (p < 0.001). Two-piece implants presented lower survival than one-piece implants (p = 0.017). Implants discontinued from the market presented lower survival than the commercially available ones (p < 0.001). The difference in survival was not significant between implants in maxilla and mandible (p = 0.637). The mean MBL fluctuated between 0.632 and 2.060 mm over long periods of observation (up until 132 months). There was an estimated MBL increase of 0.005 mm per additional month of follow-up. CONCLUSION Zirconia implants present high 10-year CSR and short-term low MBL. The review was registered in PROSPERO (CRD42022342055). CLINICAL RELEVANCE The clinical outcomes observed for zirconia dental implants are very promising, although these have not yet been extensively studied as titanium alloy implants.
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Affiliation(s)
| | - Ahmad Soufi
- Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Bruno Ramos Chrcanovic
- Department of Oral and Maxillofacial Surgery and Oral Medicine, Faculty of Odontology, Malmö University, Carl Gustafs Väg 34, 214 21, Malmö, Sweden.
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292
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Moreira NS, Baldo TA, Duarte LC, Lopes-Luz L, Oliveira KA, Estrela PFN, Simões AM, Bührer-Sékula S, Duarte GRM, Coltro WKT. Direct immunoassay on a polyester microwell plate for colorimetric detection of the spike protein in swab and saliva samples. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 16:74-82. [PMID: 38073521 DOI: 10.1039/d3ay01755a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2023]
Abstract
This study presents the development of a polyester microplate for detecting the S-protein of the SARS-CoV-2 virus in saliva and nasopharyngeal swab samples using direct enzyme-linked immunosorbent assay (ELISA) technology. The polyester microplate was designed to contain 96 zones with a 3 mm diameter each, and a volume of 2-3 μL. The experimental conditions including reagent concentration and reaction time were optimized. The microplate image was digitized and analyzed using graphical software. The linear range obtained between protein S concentrations and pixel intensity was 0-10 μg mL-1, with a correlation coefficient of 0.99 and a limit of detection of 0.44 μg mL-1. The developed methodology showed satisfactory intraplate and interplate repeatability with RSD values lower than 7.8%. The results achieved through immunoassay performed on polyester microplates were consistent with those of the RT-PCR method and showed a sensitivity of 100% and 90% and specificity of 85.71% and 100% for saliva and nasopharyngeal samples, respectively. The proposed direct immunoassay on polyester microplates emerges as an alternative to conventional immunoassays performed on commercial polystyrene plates, given the low cost of the device, low consumption of samples and reagents, lower waste generation, and shorter analysis time. Moreover, the immunoassay has shown great potential for diagnosing COVID-19 with precision and accuracy.
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Affiliation(s)
- Nikaele S Moreira
- Instituto de Química, Universidade Federal de Goiás, 74690-900, Goiânia, GO, Brazil.
| | - Thaisa A Baldo
- Instituto de Química, Universidade Federal de Goiás, 74690-900, Goiânia, GO, Brazil.
| | - Lucas C Duarte
- Instituto de Química, Universidade Federal de Goiás, 74690-900, Goiânia, GO, Brazil.
- Instituto Federal de Educação, Ciência e Tecnologia de Goiás - Campus Inhumas, 75402-556, Inhumas, GO, Brazil
| | - Leonardo Lopes-Luz
- Instituto de Patologia Tropical e Saúde Pública, Centro Multiusuário de Bioinsumos e Tecnologias em Saúde, Universidade Federal de Goiás, 74605-050, Goiânia, GO, Brazil
- Innovation Hub in Point-of-Care Technologies, 74690-900, Goiânia, GO, Brazil
| | - Karoliny A Oliveira
- Instituto de Química, Universidade Federal de Goiás, 74690-900, Goiânia, GO, Brazil.
| | - Paulo F N Estrela
- Instituto de Química, Universidade Federal de Goiás, 74690-900, Goiânia, GO, Brazil.
| | - Amanda M Simões
- Instituto de Química, Universidade Federal de Goiás, 74690-900, Goiânia, GO, Brazil.
| | - Samira Bührer-Sékula
- Instituto de Patologia Tropical e Saúde Pública, Centro Multiusuário de Bioinsumos e Tecnologias em Saúde, Universidade Federal de Goiás, 74605-050, Goiânia, GO, Brazil
- Innovation Hub in Point-of-Care Technologies, 74690-900, Goiânia, GO, Brazil
| | - Gabriela R M Duarte
- Instituto de Química, Universidade Federal de Goiás, 74690-900, Goiânia, GO, Brazil.
- Innovation Hub in Point-of-Care Technologies, 74690-900, Goiânia, GO, Brazil
| | - Wendell K T Coltro
- Instituto de Química, Universidade Federal de Goiás, 74690-900, Goiânia, GO, Brazil.
- Innovation Hub in Point-of-Care Technologies, 74690-900, Goiânia, GO, Brazil
- Instituto Nacional de Ciência e Tecnologia de Bioanalítica, 13084-971, Campinas, SP, Brazil
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293
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Chen W, Jiang T, Huang H, Zeng J. Post-stroke fatigue: a review of development, prevalence, predisposing factors, measurements, and treatments. Front Neurol 2023; 14:1298915. [PMID: 38187145 PMCID: PMC10768193 DOI: 10.3389/fneur.2023.1298915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 12/01/2023] [Indexed: 01/09/2024] Open
Abstract
Background Post-stroke fatigue (PSF) is a ubiquitous and overwhelming symptom for most stroke survivors. However, there are no effective management strategies for PSF, which is partly due to our limited understanding. Objective In this paper, we review the development, prevalence, predisposing factors, measurements, and treatments of PSF. Results PSF is an independent symptom after stroke, with a prevalence ranging from 42 to 53%, which depends on the selection of measurement tools and stroke characteristics. It is affected by biological, physical, and psychological factors, among which inflammation may play a key role. Conclusion Numerous but non-specific evaluation measurement tools limit the management of PSF. In clinical practice, it may be beneficial to identify PSF by combining scales and objective indexes, such as walking tests and electromyographic examinations. There are no evidence-based interventions to improve PSF. However, increasing evidence suggests that transcranial direct-current stimulation and mindfulness-based interventions may become promising treatments. Further studies are urgently needed to better understand the etiology of PSF, thereby providing the basis for developing new measurement tools and targeted treatments.
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Affiliation(s)
| | - Tao Jiang
- Department of Neurology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
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294
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di Biase L. Clinical Management of Movement Disorders. J Clin Med 2023; 13:43. [PMID: 38202050 PMCID: PMC10779840 DOI: 10.3390/jcm13010043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 12/19/2023] [Indexed: 01/12/2024] Open
Abstract
Movement disorders include a wide and heterogeneous variety of signs and syndromes, which are classified as hyperkinetic [...].
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Affiliation(s)
- Lazzaro di Biase
- Neurology Unit, Campus Bio-Medico University Hospital Foundation, Via Álvaro del Portillo 200, 00128 Rome, Italy
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295
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Khan MM, Sharma V, Serajuddin M. Emerging role of miRNA in prostate cancer: A future era of diagnostic and therapeutics. Gene 2023; 888:147761. [PMID: 37666374 DOI: 10.1016/j.gene.2023.147761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 08/17/2023] [Accepted: 09/01/2023] [Indexed: 09/06/2023]
Abstract
Prostate cancer (PCa) is the most common cancer in men (20%) and is responsible for 6.8% (1/5) of all cancer-related deaths in men around the world. The development and spread of prostate cancer are driven by a wide variety of genomic changes and extensive epigenetic events. Because of this, the MicroRNA (miRNA) and associated molecular mechanisms involved in PCa genesis and aggressive were only partially identified until today. The miRNAs are a newly discovered category of regulatorsthat have recently been recognized to have a significant role in regulating numerous elements of cancer mechanisms, such as proliferation, differentiation, metabolism, and apoptosis. The miRNAs are a type of small (22-24 nucleotides), non-coding, endogenous, single-stranded RNA and work as potent gene regulators. Various types of cancer, including PCa, have found evidence that miRNA genes, which are often located in cancer-related genetic regions or fragile locations, have a role in the primary steps of tumorigenesis, either as oncogenes or tumorsuppressors. To explain the link between miRNAs and their function in the initiation and advancement of PCa, we conducted a preliminary assessment. The purpose of this research was to enhance our understanding of the connection between miRNA expression profiles and PCa by elucidating the fundamental processes of miRNA expression and the target genes.
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Affiliation(s)
- Mohd Mabood Khan
- Department of Zoology, University of Lucknow, Lucknow 226007, Uttar Pradesh, India.
| | - Vineeta Sharma
- Department of Medicine, Vanderbilt University Medical Center, Nashville 37232, TN, USA
| | - Mohammad Serajuddin
- Department of Zoology, University of Lucknow, Lucknow 226007, Uttar Pradesh, India
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296
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Velot É, Balmayor ER, Bertoni L, Chubinskaya S, Cicuttini F, de Girolamo L, Demoor M, Grigolo B, Jones E, Kon E, Lisignoli G, Murphy M, Noël D, Vinatier C, van Osch GJVM, Cucchiarini M. Women's contribution to stem cell research for osteoarthritis: an opinion paper. Front Cell Dev Biol 2023; 11:1209047. [PMID: 38174070 PMCID: PMC10762903 DOI: 10.3389/fcell.2023.1209047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 09/18/2023] [Indexed: 01/05/2024] Open
Affiliation(s)
- Émilie Velot
- Laboratory of Molecular Engineering and Articular Physiopathology (IMoPA), French National Centre for Scientific Research, University of Lorraine, Nancy, France
| | - Elizabeth R. Balmayor
- Experimental Orthopaedics and Trauma Surgery, Department of Orthopaedic, Trauma, and Reconstructive Surgery, RWTH Aachen University Hospital, Aachen, Germany
- Rehabilitation Medicine Research Center, Mayo Clinic, Rochester, MN, United States
| | - Lélia Bertoni
- CIRALE, USC 957, BPLC, École Nationale Vétérinaire d'Alfort, Maisons-Alfort, France
| | | | - Flavia Cicuttini
- Musculoskeletal Unit, Monash University and Rheumatology, Alfred Hospital, Melbourne, VIC, Australia
| | - Laura de Girolamo
- IRCCS Ospedale Galeazzi - Sant'Ambrogio, Orthopaedic Biotechnology Laboratory, Milan, Italy
| | - Magali Demoor
- Normandie University, UNICAEN, BIOTARGEN, Caen, France
| | - Brunella Grigolo
- IRCCS Istituto Ortopedico Rizzoli, Laboratorio RAMSES, Bologna, Italy
| | - Elena Jones
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, Leeds, United Kingdom
| | - Elizaveta Kon
- IRCCS Humanitas Research Hospital, Milan, Italy
- Department ofBiomedical Sciences, Humanitas University, Milan, Italy
| | - Gina Lisignoli
- IRCCS Istituto Ortopedico Rizzoli, Laboratorio di Immunoreumatologia e Rigenerazione Tissutale, Bologna, Italy
| | - Mary Murphy
- Regenerative Medicine Institute (REMEDI), School of Medicine, University of Galway, Galway, Ireland
| | - Danièle Noël
- IRMB, University of Montpellier, Inserm, CHU Montpellier, Montpellier, France
| | - Claire Vinatier
- Nantes Université, Oniris, INSERM, Regenerative Medicine and Skeleton, Nantes, France
| | - Gerjo J. V. M. van Osch
- Department of Orthopaedics and Sports Medicine and Department of Otorhinolaryngology, Department of Biomechanical Engineering, University Medical Center Rotterdam, Faculty of Mechanical, Maritime and Materials Engineering, Delft University of Technology, Delft, Netherlands
| | - Magali Cucchiarini
- Center of Experimental Orthopedics, Saarland University and Saarland University Medical Center, Homburg/Saar, Germany
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297
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Zhang F, Gao H, Jiang X, Yang F, Zhang J, Song S, Shen J. Biomedical Application of Decellularized Scaffolds. ACS APPLIED BIO MATERIALS 2023; 6:5145-5168. [PMID: 38032114 DOI: 10.1021/acsabm.3c00778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
Tissue loss and end-stage organ failure are serious health problems across the world. Natural and synthetic polymer scaffold material based artificial organs play an important role in the field of tissue engineering and organ regeneration, but they are not from the body and may cause side effects such as rejection. In recent years, the biomimetic decellularized scaffold based materials have drawn great attention in the tissue engineering field for their good biocompatibility, easy modification, and excellent organism adaptability. Therefore, in this review, we comprehensively summarize the application of decellularized scaffolds in tissue engineering and biomedicine in recent years. The preparation methods, modification strategies, construction of artificial tissues, and application in biomedical applications are discussed. We hope that this review will provide a useful reference for research on decellularized scaffolds and promote their application tissue engineering.
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Affiliation(s)
- Fang Zhang
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Huimin Gao
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Xuefeng Jiang
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Fang Yang
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Jun Zhang
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Saijie Song
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Jian Shen
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
- Jiangsu Engineering Research Center of Interfacial Chemistry, Nanjing University, Nanjing 210023, China
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298
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Jordao A, Cléret D, Dhayer M, Le Rest M, Cao S, Rech A, Azaroual N, Drucbert AS, Maboudou P, Dekiouk S, Germain N, Payen J, Guerreschi P, Marchetti P. Engineering 3D-Printed Bioresorbable Scaffold to Improve Non-Vascularized Fat Grafting: A Proof-of-Concept Study. Biomedicines 2023; 11:3337. [PMID: 38137558 PMCID: PMC10741522 DOI: 10.3390/biomedicines11123337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 11/29/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023] Open
Abstract
Autologous fat grafting is the gold standard for treatment in patients with soft-tissue defects. However, the technique has a major limitation of unpredictable fat resorption due to insufficient blood supply in the initial phase after transplantation. To overcome this problem, we investigated the capability of a medical-grade poly L-lactide-co-poly ε-caprolactone (PLCL) scaffold to support adipose tissue and vascular regeneration. Deploying FDM 3D-printing, we produced a bioresorbable porous scaffold with interconnected pore networks to facilitate nutrient and oxygen diffusion. The compressive modulus of printed scaffold mimicked the mechanical properties of native adipose tissue. In vitro assays demonstrated that PLCL scaffolds or their degradation products supported differentiation of preadipocytes into viable mature adipocytes under appropriate induction. Interestingly, the chorioallantoic membrane assay revealed vascular invasion inside the porous scaffold, which represented a guiding structure for ingrowing blood vessels. Then, lipoaspirate-seeded scaffolds were transplanted subcutaneously into the dorsal region of immunocompetent rats (n = 16) for 1 or 2 months. The volume of adipose tissue was maintained inside the scaffold over time. Histomorphometric evaluation discovered small- and normal-sized perilipin+ adipocytes (no hypertrophy) classically organized into lobular structures inside the scaffold. Adipose tissue was surrounded by discrete layers of fibrous connective tissue associated with CD68+ macrophage patches around the scaffold filaments. Adipocyte viability, assessed via TUNEL staining, was sustained by the presence of a high number of CD31-positive vessels inside the scaffold, confirming the CAM results. Overall, our study provides proof that 3D-printed PLCL scaffolds can be used to improve fat graft volume preservation and vascularization, paving the way for new therapeutic options for soft-tissue defects.
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Affiliation(s)
- Amélia Jordao
- UMR9020–UMR-S 1277–Canther–Cancer Heterogeneity, Plasticity and Resistance to Therapies, CNRS, Inserm, CHU Lille, Oncolille, University Lille, F-59000 Lille, France; (A.J.); (N.G.)
- Lattice Medical, 80 rue du Docteur Yersin, F-59120 Loos, France
| | - Damien Cléret
- Lattice Medical, 80 rue du Docteur Yersin, F-59120 Loos, France
| | - Mélanie Dhayer
- UMR9020–UMR-S 1277–Canther–Cancer Heterogeneity, Plasticity and Resistance to Therapies, CNRS, Inserm, CHU Lille, Oncolille, University Lille, F-59000 Lille, France; (A.J.); (N.G.)
| | - Mégann Le Rest
- Lattice Medical, 80 rue du Docteur Yersin, F-59120 Loos, France
| | - Shengheng Cao
- Lattice Medical, 80 rue du Docteur Yersin, F-59120 Loos, France
| | - Alexandre Rech
- University of Lille, Faculté de Pharmacie, Plateau RMN, UFR3S, F-59000 Lille, France
| | - Nathalie Azaroual
- University of Lille, ULR 7365–GRITA–Groupe de Recherche Sur Les Formes Injectables Et Les Technologies Associées, F-59000 Lille, France;
| | - Anne-Sophie Drucbert
- U 1008 Controlled Drug Delivery Systems and Biomaterials, Inserm, F-59000 Lille, France
| | | | - Salim Dekiouk
- UMR9020–UMR-S 1277–Canther–Cancer Heterogeneity, Plasticity and Resistance to Therapies, CNRS, Inserm, CHU Lille, Oncolille, University Lille, F-59000 Lille, France; (A.J.); (N.G.)
- Centre de Bio-Pathologie, Banque de Tissus, CHU Lille, F-59000 Lille, France
| | - Nicolas Germain
- UMR9020–UMR-S 1277–Canther–Cancer Heterogeneity, Plasticity and Resistance to Therapies, CNRS, Inserm, CHU Lille, Oncolille, University Lille, F-59000 Lille, France; (A.J.); (N.G.)
- Centre de Bio-Pathologie, Banque de Tissus, CHU Lille, F-59000 Lille, France
| | - Julien Payen
- Lattice Medical, 80 rue du Docteur Yersin, F-59120 Loos, France
| | - Pierre Guerreschi
- U 1008 Controlled Drug Delivery Systems and Biomaterials, Inserm, F-59000 Lille, France
- Service de Chirurgie Plastique, CHU Lille, F-59000 Lille, France
| | - Philippe Marchetti
- UMR9020–UMR-S 1277–Canther–Cancer Heterogeneity, Plasticity and Resistance to Therapies, CNRS, Inserm, CHU Lille, Oncolille, University Lille, F-59000 Lille, France; (A.J.); (N.G.)
- Centre de Bio-Pathologie, Banque de Tissus, CHU Lille, F-59000 Lille, France
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299
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Yu Z, Wen X, Yang Y. Reconstruction of Sparse-View X-ray Computed Tomography Based on Adaptive Total Variation Minimization. MICROMACHINES 2023; 14:2245. [PMID: 38138414 PMCID: PMC10745410 DOI: 10.3390/mi14122245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 11/30/2023] [Accepted: 12/13/2023] [Indexed: 12/24/2023]
Abstract
Sparse-view reconstruction has garnered significant interest in X-ray computed tomography (CT) imaging owing to its ability to lower radiation doses and enhance detection efficiency. Among current methods for sparse-view CT reconstruction, an algorithm utilizing iterative reconstruction based on full variational regularization demonstrates good performance. The optimized direction and number of computations for the gradient operator of the regularization term play a crucial role in determining not only the reconstructed image quality but also the convergence speed of the iteration process. The conventional TV approach solely accounts for the vertical and horizontal directions of the two-dimensional plane in the gradient direction. When projection data decrease, the edges of the reconstructed image become blurred. Exploring too many gradient directions for TV terms often comes at the expense of more computational costs. To enhance the balance of computational cost and reconstruction quality, this study suggests a novel TV computation model that is founded on a four-direction gradient operator. In addition, selecting appropriate iteration parameters significantly impacts the quality of the reconstructed image. We propose a nonparametric control method utilizing the improved TV approach as a solution to the tedious manual parameter optimization issue. The relaxation parameters of projection onto convex sets (POCS) are determined according to the scanning number and numerical proportion of the projection data; according to the image error before and after iterations, the gradient descent step of the TV item is adaptively adjusted. Compared with several representative iterative reconstruction algorithms, the experimental results show that the algorithm can effectively preserve edges and suppress noise in sparse-view CT reconstruction.
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Affiliation(s)
| | | | - Yan Yang
- College of Mechanical Engineering, Chongqing University of Technology, Chongqing 400054, China; (Z.Y.); (X.W.)
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300
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Kizhisseri M, Gharaie S, Boopathy SR, Lim RP, Mohammadzadeh M, Schluter J. Differential sensitivities to blood pressure variations in internal carotid and intracranial arteries: a numerical approach to stroke prediction. Sci Rep 2023; 13:22319. [PMID: 38102319 PMCID: PMC10724219 DOI: 10.1038/s41598-023-49591-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 12/09/2023] [Indexed: 12/17/2023] Open
Abstract
Stroke remains a global health concern, necessitating early prediction for effective management. Atherosclerosis-induced internal carotid and intra cranial stenosis contributes significantly to stroke risk. This study explores the relationship between blood pressure and stroke prediction, focusing on internal carotid artery (ICA) branches: middle cerebral artery (MCA), anterior cerebral artery (ACA), and their role in hemodynamics. Computational fluid dynamics (CFD) informed by the Windkessel model were employed to simulate patient-specific ICA models with introduced stenosis. Central to our investigation is the impact of stenosis on blood pressure, flow velocity, and flow rate across these branches, incorporating Fractional Flow Reserve (FFR) analysis. Results highlight differential sensitivities to blood pressure variations, with M1 branch showing high sensitivity, ACA moderate, and M2 minimal. Comparing blood pressure fluctuations between ICA and MCA revealed heightened sensitivity to potential reverse flow compared to ICA and ACA comparisons, emphasizing MCA's role. Blood flow adjustments due to stenosis demonstrated intricate compensatory mechanisms. FFR emerged as a robust predictor of stenosis severity, particularly in the M2 branch. In conclusion, this study provides comprehensive insights into hemodynamic complexities within major intracranial arteries, elucidating the significance of blood pressure variations, flow attributes, and FFR in stenosis contexts. Subject-specific data integration enhances model reliability, aiding stroke risk assessment and advancing cerebrovascular disease understanding.
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Affiliation(s)
- Muhsin Kizhisseri
- School of Engineering, Deakin University, 75 Pigdons Rd, Waurn Ponds, VIC, 3216, Australia
| | - Saleh Gharaie
- School of Engineering, Deakin University, 75 Pigdons Rd, Waurn Ponds, VIC, 3216, Australia.
| | | | | | | | - Jorg Schluter
- School of Engineering, Deakin University, 75 Pigdons Rd, Waurn Ponds, VIC, 3216, Australia
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