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Zhang L, Huang J, Li L, Zhang H, Li S, Chai W, Chen X, Liu C, Honiball JR, Li B, Ren Y, Chu L, Luo X, Pan H, Cui X. Exploratory Investigation of Zinc-Modified Borosilicate Bioactive Glass: A New Methodology for Its Biocompatibility, Immunoregulation, and Pro-Angiogenic Property Evaluation. ACS APPLIED MATERIALS & INTERFACES 2024; 16:46016-46034. [PMID: 39167416 DOI: 10.1021/acsami.4c08487] [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: 08/23/2024]
Abstract
The assessment of biodegradable materials, such as bioactive glass, under the existing ISO 10993 standard test methods poses a significant challenge due to potential cell viability impairment caused by the accumulation of degraded products in a static environment. Therefore, innovative methodologies are urgently needed to tailor the unique biodegradation characteristics of these materials, providing more precise and scientific insights into biosafety and efficacy verification. Motivation by its bidirectional regulation of angiogenesis and immunity, zinc (Zn) was incorporated into sol-gel-derived borosilicate bioactive glasses (SBSGs) to fabricate Zn-incorporated borosilicate bioactive glasses (SBSG-Zn) to complement the tissue repair capabilities of bioactive glasses. Both SBSG and SBSG-Zn glasses consist of nanosized particles, slit mesoporous pores, high specific surface areas, and bioreactivity. In vitro comparative analysis, conducted according to ISO 10993 standards, demonstrates that only at suitable dilution rates─such as the 8-fold dilution employed in this study─do extracts of SBSG and SBSG-Zn glasses exhibit low cytotoxicity when cultured with human umbilical vein endothelial cells (HUVECs). Notably, SBSG-Zn glasses show optimal promotion of angiogenic gene expression in HUVECs. Furthermore, within an appropriate concentration range of released ions, SBSG-Zn glass extracts not only promote cell survival but also modulate the expression of anti-inflammatory genes while simultaneously inhibiting pro-inflammatory genes concurrently. After being implanted in rat subcutaneous defect models, both SBSG and SBSG-Zn glasses demonstrated the local immunoregulation and angiogenic effects. SBSG-Zn stands out by demonstrating superior modulation of M1/M2 polarization in macrophages as validated by altered secretion of key factors in macrophages and expression of relevant growth factors in HUVECs. These findings underscore the potential for convenient manipulation of localized angiogenic and immunoregulation through the incorporation of zinc into bioactive glass, emphasizing the importance of ensuring the appropriate ion doses are applied for achieving optimal therapeutic efficiency.
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Affiliation(s)
- Liyan Zhang
- Shenzhen Key Laboratory of Marine Biomedical Materials, CAS-HK Joint Lab of Biomaterials, The Key Laboratory of Biomedical Imaging Science and System, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, Guangdong, P. R. China
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education and Tianjin, College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, P. R. China
| | - Jing Huang
- Department of Orthopedics, Fourth Affiliated Hospital of Guangxi Medical University/Liuzhou Worker's Hospital, Liuzhou 545000, Guangxi, P. R. China
| | - Li Li
- Department of Orthopedics, Fourth Affiliated Hospital of Guangxi Medical University/Liuzhou Worker's Hospital, Liuzhou 545000, Guangxi, P. R. China
- Department of Orthopaedics & Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR 999077, P. R. China
| | - Hao Zhang
- Shenzhen Key Laboratory of Marine Biomedical Materials, CAS-HK Joint Lab of Biomaterials, The Key Laboratory of Biomedical Imaging Science and System, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, Guangdong, P. R. China
- Shenzhen Healthemes Biotechnology Co., Ltd., Shenzhen 518055, Guangdong, P. R. China
| | - Shuaijie Li
- Shenzhen Key Laboratory of Marine Biomedical Materials, CAS-HK Joint Lab of Biomaterials, The Key Laboratory of Biomedical Imaging Science and System, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, Guangdong, P. R. China
- Shenzhen Healthemes Biotechnology Co., Ltd., Shenzhen 518055, Guangdong, P. R. China
| | - Wenwen Chai
- Shenzhen Key Laboratory of Marine Biomedical Materials, CAS-HK Joint Lab of Biomaterials, The Key Laboratory of Biomedical Imaging Science and System, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, Guangdong, P. R. China
- Shenzhen Healthemes Biotechnology Co., Ltd., Shenzhen 518055, Guangdong, P. R. China
| | - Xiaochen Chen
- Shenzhen Key Laboratory of Marine Biomedical Materials, CAS-HK Joint Lab of Biomaterials, The Key Laboratory of Biomedical Imaging Science and System, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, Guangdong, P. R. China
- Shenzhen Healthemes Biotechnology Co., Ltd., Shenzhen 518055, Guangdong, P. R. China
| | - Chunyu Liu
- Shenzhen Key Laboratory of Marine Biomedical Materials, CAS-HK Joint Lab of Biomaterials, The Key Laboratory of Biomedical Imaging Science and System, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, Guangdong, P. R. China
- Shenzhen Healthemes Biotechnology Co., Ltd., Shenzhen 518055, Guangdong, P. R. China
| | - John Robert Honiball
- Department of Orthopaedics & Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR 999077, P. R. China
| | - Bing Li
- Department of Orthopedics, Fourth Affiliated Hospital of Guangxi Medical University/Liuzhou Worker's Hospital, Liuzhou 545000, Guangxi, P. R. China
| | - Youliang Ren
- Department of Orthopaedics, Second Affiliated Hospital of Chongqing Medical University, 76 Linjiang Road, Yuzhong District, Chongqing 400010, P. R. China
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - Lei Chu
- Department of Orthopaedics, Second Affiliated Hospital of Chongqing Medical University, 76 Linjiang Road, Yuzhong District, Chongqing 400010, P. R. China
| | - Xuegang Luo
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education and Tianjin, College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, P. R. China
| | - Haobo Pan
- Shenzhen Key Laboratory of Marine Biomedical Materials, CAS-HK Joint Lab of Biomaterials, The Key Laboratory of Biomedical Imaging Science and System, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, Guangdong, P. R. China
- Shenzhen Healthemes Biotechnology Co., Ltd., Shenzhen 518055, Guangdong, P. R. China
| | - Xu Cui
- Shenzhen Key Laboratory of Marine Biomedical Materials, CAS-HK Joint Lab of Biomaterials, The Key Laboratory of Biomedical Imaging Science and System, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, Guangdong, P. R. China
- Shenzhen Healthemes Biotechnology Co., Ltd., Shenzhen 518055, Guangdong, P. R. China
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Cao Y, Wang H, Cao S, Liu Z, Zhang Y. Preparation and Characterization of Nanofiber Coatings on Bone Implants for Localized Antimicrobial Activity Based on Sustained Ion Release and Shape-Preserving Design. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2584. [PMID: 38893848 PMCID: PMC11173675 DOI: 10.3390/ma17112584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 05/19/2024] [Accepted: 05/23/2024] [Indexed: 06/21/2024]
Abstract
Titanium (Ti), as a hard tissue implant, is facing a big challenge for rapid and stable osseointegration owing to its intrinsic bio-inertness. Meanwile, surface-related infection is also a serious threat. In this study, large-scale quasi-vertically aligned sodium titanate nanowire (SNW) arrayed coatings incorporated with bioactive Cu2+ ions were fabricated through a compound process involving acid etching, hydrothermal treatment (HT), and ion exchange (IE). A novel coating based on sustained ion release and a shape-preserving design is successfully obtained. Cu2+ substituted Na+ in sodium titanate lattice to generate Cu-doped SNW (CNW), which maintains the micro-structure and phase components of the original SNW, and can be efficiently released from the structure by immersing them in physiological saline (PS) solutions, ensuring superior long-term structural stability. The synergistic effects of the acid etching, bidirectional cogrowth, and solution-strengthening mechanisms endow the coating with higher bonding strengths. In vitro antibacterial tests demonstrated that the CNW coatings exhibited effective good antibacterial properties against both Gram-positive and Gram-negative bacteria based on the continuous slow release of copper ions. This is an exciting attempt to achieve topographic, hydrophilic, and antibacterial activation of metal implants, demonstrating a paradigm for the activation of coatings without dissolution and providing new insights into insoluble ceramic-coated implants with high bonding strengths.
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Affiliation(s)
- Yubao Cao
- School of Machinery and Automation, Weifang University, Weifang 261061, China
| | - Hong Wang
- School of Machinery and Automation, Weifang University, Weifang 261061, China
| | - Shuyun Cao
- School of Machinery and Automation, Weifang University, Weifang 261061, China
| | - Zaihao Liu
- College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Yanni Zhang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
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Fang Y, Chen C, Chen X, Song J, Feng S, Li Z, Li Z, Xiong Y, Zhang Q, Su H, Liu H, Zhu G, Hu B, Wang W, Liu Z, Jiao K, Zhang C, Zhang F, Jiang K, He J, Sun Z, Yuan D, Chen W, Zhu J. Exposure to heavy metal elements may significantly increase serum prostate-specific antigen levels with overdosed dietary zinc. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 272:116080. [PMID: 38350215 DOI: 10.1016/j.ecoenv.2024.116080] [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: 10/20/2023] [Revised: 01/24/2024] [Accepted: 02/04/2024] [Indexed: 02/15/2024]
Abstract
BACKGROUND Serum prostate-specific antigen (PSA) is a primary metric for diagnosis and prognosis of prostate cancer (PCa). Exposure to heavy metals, such as lead, cadmium, mercury, and zinc can impact PSA levels in PCa patients. However, it is unclear whether this effect also occurs in men without PCa, which may lead to the overdiagnosis of PCa. METHOD Data on a total of 5089 American men who had never been diagnosed with PCa were obtained from the National Health and Nutrition Examination Survey performed from 2003-2010. The relationship between serum PSA levels (dependent variable) and concentrations of lead (μmol/L), cadmium (nmol/L), and mercury (μmol/L) were investigated with dietary zinc intake being used as a potential modifier or covariate in a weighted linear regression model and a generalized additive model. A series of bootstrapping analyses were performed to evaluate sensitivity and specificity using these models. RESULTS Regression analyses suggested that, in general, lead, cadmium, or mercury did not show an association with PSA levels, which was consistent with the results of the bootstrapping analyses. However, in a subgroup of participants with a high level of dietary zinc intake (≥14.12 mg/day), a significant positive association between cadmium and serum PSA was identified (1.06, 95% CI, P = 0.0268, P for interaction=0.0249). CONCLUSIONS With high-level zinc intake, serum PSA levels may rise in PCa-free men as the exposure to cadmium increases, leading to a potential risk of an overdiagnosis of PCa and unnecessary treatment. Therefore, environmental variables should be factored in the current diagnostic model for PCa that is solely based on PSA measurements. Different criteria for PSA screening are necessary based on geographical variables. Further investigations are needed to uncover the biological and biochemical relationship between zinc, cadmium, and serum PSA levels to more precisely diagnose PCa.
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Affiliation(s)
- Yinyi Fang
- Guizhou University Medical College, Guiyang city, Guizhou Province 550025, China; People's Hospital Affiliated to Guizhou University, Guiyang city, Guizhou Province, China
| | - Chi Chen
- Department of Immunology and Microbiology, Guiyang College of Traditional Chinese Medicine, Guiyang, Guizhou Province 550001, China
| | - Xiaoyue Chen
- Guizhou University Medical College, Guiyang city, Guizhou Province 550025, China
| | - Jukun Song
- Guizhou University Medical College, Guiyang city, Guizhou Province 550025, China; People's Hospital Affiliated to Guizhou University, Guiyang city, Guizhou Province, China
| | - Shuangshuang Feng
- Guizhou University Medical College, Guiyang city, Guizhou Province 550025, China
| | - Zhuang Li
- Urology Department, Guizhou Provincial People's Hospital, Guiyang city, Guizhou Province 550002, China; Guizhou Medical University, Guiyang city, Guizhou Province, China
| | - Zhengnan Li
- Urology Department, Guizhou Provincial People's Hospital, Guiyang city, Guizhou Province 550002, China; Zunyi Medcical University, Zunyi City, Guizhou Province, China
| | - Yuliang Xiong
- Urology Department, Guizhou Provincial People's Hospital, Guiyang city, Guizhou Province 550002, China; Guizhou Medical University, Guiyang city, Guizhou Province, China
| | - Qinyi Zhang
- Urology Department, Guizhou Provincial People's Hospital, Guiyang city, Guizhou Province 550002, China; Zunyi Medcical University, Zunyi City, Guizhou Province, China
| | - Hao Su
- Urology Department, Guizhou Provincial People's Hospital, Guiyang city, Guizhou Province 550002, China; Zunyi Medcical University, Zunyi City, Guizhou Province, China
| | - Heng Liu
- Urology Department, Guizhou Provincial People's Hospital, Guiyang city, Guizhou Province 550002, China; Zunyi Medcical University, Zunyi City, Guizhou Province, China
| | - Guohua Zhu
- Urology Department, Guizhou Provincial People's Hospital, Guiyang city, Guizhou Province 550002, China; Guizhou Medical University, Guiyang city, Guizhou Province, China
| | - Bin Hu
- Zunyi Medcical University, Zunyi City, Guizhou Province, China
| | - Wei Wang
- Urology Department, Guizhou Provincial People's Hospital, Guiyang city, Guizhou Province 550002, China; Guizhou Medical University, Guiyang city, Guizhou Province, China
| | - Zhangcheng Liu
- Urology Department, Guizhou Provincial People's Hospital, Guiyang city, Guizhou Province 550002, China; Zunyi Medcical University, Zunyi City, Guizhou Province, China
| | - Ke Jiao
- Urology Department, Guizhou Provincial People's Hospital, Guiyang city, Guizhou Province 550002, China; Guizhou Medical University, Guiyang city, Guizhou Province, China
| | - Chang Zhang
- Urology Department, Guizhou Provincial People's Hospital, Guiyang city, Guizhou Province 550002, China
| | - Fan Zhang
- Urology Department, Guizhou Provincial People's Hospital, Guiyang city, Guizhou Province 550002, China; Guizhou Medical University, Guiyang city, Guizhou Province, China
| | - Kehua Jiang
- Urology Department, Guizhou Provincial People's Hospital, Guiyang city, Guizhou Province 550002, China
| | - Jun He
- Department of Reproductive Medicine, Guizhou Provincial People's Hospital, Guiyang city, Guizhou Province 550002, China
| | - Zhaolin Sun
- Guizhou University Medical College, Guiyang city, Guizhou Province 550025, China; Urology Department, Guizhou Provincial People's Hospital, Guiyang city, Guizhou Province 550002, China; People's Hospital Affiliated to Guizhou University, Guiyang city, Guizhou Province, China
| | - Dongbo Yuan
- Guizhou University Medical College, Guiyang city, Guizhou Province 550025, China; Urology Department, Guizhou Provincial People's Hospital, Guiyang city, Guizhou Province 550002, China; People's Hospital Affiliated to Guizhou University, Guiyang city, Guizhou Province, China.
| | - Weiming Chen
- Guizhou University Medical College, Guiyang city, Guizhou Province 550025, China; People's Hospital Affiliated to Guizhou University, Guiyang city, Guizhou Province, China; Department of Reproductive Medicine, Guizhou Provincial People's Hospital, Guiyang city, Guizhou Province 550002, China.
| | - Jianguo Zhu
- Guizhou University Medical College, Guiyang city, Guizhou Province 550025, China; Urology Department, Guizhou Provincial People's Hospital, Guiyang city, Guizhou Province 550002, China; People's Hospital Affiliated to Guizhou University, Guiyang city, Guizhou Province, China.
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Li H, Dong J, Cui L, Liu K, Guo L, Li J, Wang H. The effect and mechanism of selenium supplementation on the proliferation capacity of bovine endometrial epithelial cells exposed to lipopolysaccharide in vitro under high cortisol background. J Anim Sci 2024; 102:skae021. [PMID: 38289713 PMCID: PMC10889726 DOI: 10.1093/jas/skae021] [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: 11/22/2023] [Accepted: 01/29/2024] [Indexed: 02/01/2024] Open
Abstract
Bovine endometritis severely inhibits uterine repair and causes considerable economic loss. Besides, parturition-induced high cortisol levels inhibit immune function, reduce cell proliferation, and further inhibit tissue repair. Selenium (Se) is an essential trace element for animals to maintain normal physiological function and has powerful antioxidant functions. This study investigated whether Se supplementation reduces endometrial damage and promotes tissue repair in cows with endometritis under stress and explored the underlying mechanism. Primary bovine endometrial epithelial cells were isolated and purified from healthy cows. The cells were treated with different combinations of lipopolysaccharide (LPS), cortisol, and various concentrations of Se. Data showed that LPS stimulation inhibited cell proliferation and increased cell apoptosis. High levels of cortisol further exacerbated these effects. Flow cytometry, scratch wound healing tests, and 5-ethynyl-2'-deoxyuridine (EdU) proliferation assays showed that Se supplementation promoted cell cycle progression, cell migration, and cell proliferation in the presence of LPS and cortisol. The quantitative PCR results showed that the expression of related growth factors was increased after Se supplementation. After administering various inhibitors, we further demonstrated that Se supplementation decreased the activity of glycogen synthetase kinase 3β (GSK-3β) through the phosphatidylinositol 3-kinase (PI3K)/protein kinase B (AKT) signaling pathway to reduce the degradation of β-catenin except the Wnt signal to promote cell proliferation. In conclusion, Se supplementation attenuated the cell damage induced by LPS at high cortisol levels and increased cell proliferation to promote uterine repair by elevating the mRNA expression of TGFB3 and VEGFA and activating the PI3K/AKT/GSK-3β/β-catenin signaling pathway.
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Affiliation(s)
- Hanqing Li
- College of Veterinary Medicine, Yangzhou University, Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou 225009, China
- International Research Laboratory of Prevention and Control of Important Animal Infectious Diseases and Zoonotic Diseases of Jiangsu Higher Education Institutions, Yangzhou University, Yangzhou 225009, China
| | - Junsheng Dong
- College of Veterinary Medicine, Yangzhou University, Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou 225009, China
- International Research Laboratory of Prevention and Control of Important Animal Infectious Diseases and Zoonotic Diseases of Jiangsu Higher Education Institutions, Yangzhou University, Yangzhou 225009, China
| | - Luying Cui
- College of Veterinary Medicine, Yangzhou University, Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou 225009, China
- International Research Laboratory of Prevention and Control of Important Animal Infectious Diseases and Zoonotic Diseases of Jiangsu Higher Education Institutions, Yangzhou University, Yangzhou 225009, China
| | - Kangjun Liu
- College of Veterinary Medicine, Yangzhou University, Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou 225009, China
- International Research Laboratory of Prevention and Control of Important Animal Infectious Diseases and Zoonotic Diseases of Jiangsu Higher Education Institutions, Yangzhou University, Yangzhou 225009, China
| | - Long Guo
- College of Veterinary Medicine, Yangzhou University, Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou 225009, China
- International Research Laboratory of Prevention and Control of Important Animal Infectious Diseases and Zoonotic Diseases of Jiangsu Higher Education Institutions, Yangzhou University, Yangzhou 225009, China
| | - Jianji Li
- College of Veterinary Medicine, Yangzhou University, Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou 225009, China
- International Research Laboratory of Prevention and Control of Important Animal Infectious Diseases and Zoonotic Diseases of Jiangsu Higher Education Institutions, Yangzhou University, Yangzhou 225009, China
| | - Heng Wang
- College of Veterinary Medicine, Yangzhou University, Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou 225009, China
- International Research Laboratory of Prevention and Control of Important Animal Infectious Diseases and Zoonotic Diseases of Jiangsu Higher Education Institutions, Yangzhou University, Yangzhou 225009, China
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The Role of Copper Homeostasis in Brain Disease. Int J Mol Sci 2022; 23:ijms232213850. [PMID: 36430330 PMCID: PMC9698384 DOI: 10.3390/ijms232213850] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 11/04/2022] [Accepted: 11/07/2022] [Indexed: 11/12/2022] Open
Abstract
In the human body, copper is an important trace element and is a cofactor for several important enzymes involved in energy production, iron metabolism, neuropeptide activation, connective tissue synthesis, and neurotransmitter synthesis. Copper is also necessary for cellular processes, such as the regulation of intracellular signal transduction, catecholamine balance, myelination of neurons, and efficient synaptic transmission in the central nervous system. Copper is naturally present in some foods and is available as a dietary supplement. Only small amounts of copper are typically stored in the body and a large amount of copper is excreted through bile and urine. Given the critical role of copper in a breadth of cellular processes, local concentrations of copper and the cellular distribution of copper transporter proteins in the brain are important to maintain the steady state of the internal environment. The dysfunction of copper metabolism or regulatory pathways results in an imbalance in copper homeostasis in the brain, which can lead to a myriad of acute and chronic pathological effects on neurological function. It suggests a unique mechanism linking copper homeostasis and neuronal activation within the central nervous system. This article explores the relationship between impaired copper homeostasis and neuropathophysiological progress in brain diseases.
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Renner R, Erfurt-Berge C. Was hat die Ernährung mit der Wundheilung zu tun? PHLEBOLOGIE 2022. [DOI: 10.1055/a-1808-9781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
ZUSAMMENFASSUNGBei einer Störung im Ablauf der Wundheilung kann es zu einem verzögerten oder fehlenden Wundverschluss kommen. Als ein möglicher Störfaktor gilt die Ernährung. Man muss zwischen quantitativer und qualitativer Mangelernährung unterscheiden. Gerade übergewichtige Patienten leiden oft an einer qualitativen Mangelernährung und Sarkopenie.Spezifische Erkrankungen machen eine entsprechende diätetische Nahrungsempfehlung notwendig. So findet man bei dialysepflichtigen Patienten, Dekubitus-Patienten und Ulcus cruris-Patienten oft einen Eiweißmangel. Auch niedrige Level an Vitamin C, Zink, Folsäure, Vitamin D oder Spurenelementen können die Wundheilung negativ beeinflussen.Größere prospektive Studien sollten klären, ob eine Substitution dieser Mangelzustände den gewünschten positiven Effekt auf die Wundheilung hat. Es erscheint aber sinnvoll, eine ausgewogene Ernährung und an die individuellen Ernährungsgewohnheiten angepasste Verbesserung der Aufnahme von Vitaminen, Spurenelementen und Eiweißen anzustreben.
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Affiliation(s)
- Regina Renner
- Hautarztpraxis Esslingen, Esslingen a. N., Deutschland
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Penny H, Flores R, Pennington E, Pedersen A, Tran S. The role of macronutrients and micronutrients in wound healing: a narrative review. J Wound Care 2022; 31:S14-S22. [PMID: 35576197 DOI: 10.12968/jowc.2022.31.sup5.s14] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
There is an extensive amount of research and literature discussing the role of various nutrients throughout the wound healing process. Despite the importance of nutrition in wound healing, dietary protocols often remain absent from wound care standards. This may be due to a lack of comprehensive literature that summarises the complexities and considerations associated with nutrient deficiency and supplementation into an easily accessible and inclusive reference tool. The purpose of this review is to assess the nutrients with key roles in the wound healing process, and subsequently provide information that enables optimisation of nutrition in wound healing. The goal is to consolidate the complexities associated with this topic into a simple, easy-to-use reference tool. We have identified the most important nutrients required for optimal wound healing and condensed the findings into an inclusive chart to be utilised in a clinical setting. This reference tool will include patient populations at risk of deficiency, the stage of wound healing in which each nutrient is required, delivery method and recommended daily intake, outpatient recommendations for rich food sources of each nutrient, and considerations associated with each nutrient.
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Affiliation(s)
- Harry Penny
- UPMC Altoona, 1414 9th Ave, Altoona, PA 16602, US
| | | | | | | | - Son Tran
- Temple University, School of Pediatric Medicine 148 N. 8th Street, Philadelphia, PA 19107, US
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Lin TY, Chou HH, Hsieh TH, Huang HL, Hung SC. Malnutrition is Associated with Increased Morbidity and Mortality in Dialysis Patients Undergoing Endovascular Therapy for Peripheral Artery Disease. Eur J Vasc Endovasc Surg 2022; 64:225-233. [PMID: 35487392 DOI: 10.1016/j.ejvs.2022.03.045] [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: 11/20/2021] [Revised: 02/28/2022] [Accepted: 03/28/2022] [Indexed: 11/18/2022]
Abstract
OBJECTIVES Revascularization for peripheral artery disease (PAD) is increasingly common in dialysis patients. Patients with PAD who have undergone revascularization are at high risk for subsequent complications. Malnutrition is an important modifiable risk factor for dialysis patients, yet little data exist on the prognostic impact of malnutrition on postprocedure long-term outcomes. METHODS A total of 395 consecutive dialysis patients undergoing endovascular revascularization for PAD between 2005 and 2019 were examined for the primary outcome of all-cause mortality. Secondary outcomes included major adverse limb events (MALEs), defined as acute limb ischemia, major amputation, and clinically driven revascularization, and major adverse cardiovascular events (MACEs). Nutritional status was assessed by using the Controlling Nutritional Status (CONUT) score, a screening tool for malnutrition incorporating albumin, cholesterol, and total lymphocyte count. RESULTS According to the CONUT score, 40.8% of patients were moderately or severely malnourished. During a median follow-up of 2.2 years, 218 (55.2%) patients died; 211 (53.4%) patients had MALEs, and MACEs occurred in 135 (34.2%) patients. Compared with normal nutritional status, severe malnutrition was associated with a significantly increased risk for all-cause death (adjusted HR, 4.83; 95% CI, 2.56-9.12) and MALEs (adjusted HR, 2.42; 95% CI, 1.23-4.74) but not MACEs (adjusted HR, 1.81; 95% CI, 0.74-4.40). Similar results were observed when the CONUT score was analyzed as a continuous variable. CONCLUSIONS Malnutrition is common among dialysis patients with PAD requiring endovascular therapy and is strongly associated with increased mortality and MALEs. Clinical trials are needed to evaluate whether nutritional interventions improve outcomes for dialysis patients after peripheral revascularization.
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Affiliation(s)
- Ting-Yun Lin
- Division of Nephrology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan; School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Hsin-Hua Chou
- School of Medicine, Tzu Chi University, Hualien, Taiwan; Division of Cardiology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
| | - Tsung-Han Hsieh
- Department of Research, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
| | - Hsuan-Li Huang
- Division of Cardiology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan; School of Post-baccalaureate Chinese Medicine, Tzu Chi University, Hualien, Taiwan.
| | - Szu-Chun Hung
- Division of Nephrology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan; School of Medicine, Tzu Chi University, Hualien, Taiwan.
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Stretton B, Kovoor JG, Vanlint A, Maddern G, Thompson CH. Perioperative micronutrients, macroscopic benefits? J Perioper Pract 2022; 33:92-98. [PMID: 35445613 DOI: 10.1177/17504589221091058] [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: 11/15/2022]
Abstract
'Micronutrients' are vitamins and minerals vital for healthy metabolic function, wound healing and disease and infection prevention. Micronutrients may play a role in significantly improving postoperative recovery and indices of patient comfort; however, minimal research exists for surgical patients. Furthermore, current guidelines on perioperative nutrition have a macronutrient focus which may fail to guide detection and treatment of the subclinical micronutrient deficiency in a patient who is not obviously malnourished. Limited research into supplementation of some micronutrient deficiencies shows favourable results; however, given the financial implications of wound care, the prevalence of micronutrient deficiency and possible benefits from attention to micronutrition for postoperative recovery, further research into this area is urgently warranted. Interventions to guide optimal future clinical practice are suggested.
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Affiliation(s)
- Brandon Stretton
- Adelaide Medical School, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, SA, Australia
| | - Joshua G Kovoor
- Discipline of Surgery, The Queen Elizabeth Hospital, The University of Adelaide, Adelaide, SA, Australia
| | - Andrew Vanlint
- Adelaide Medical School, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, SA, Australia
| | - Guy Maddern
- Discipline of Surgery, The Queen Elizabeth Hospital, The University of Adelaide, Adelaide, SA, Australia
| | - Campbell H Thompson
- Adelaide Medical School, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, SA, Australia
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10
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Hameed HA, Hasan HA, Luddin N, Husein A, Ariffin A, Alam MK. Osteoblastic Cell Responses of Copper Nanoparticle Coatings on Ti-6Al-7Nb Alloy Using Electrophoretic Deposition Method. BIOMED RESEARCH INTERNATIONAL 2022; 2022:3675703. [PMID: 35496039 PMCID: PMC9042614 DOI: 10.1155/2022/3675703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 01/30/2022] [Accepted: 04/01/2022] [Indexed: 11/17/2022]
Abstract
Aim To investigate and compare the cell cytotoxicity, proliferation, cell attachment, and morphology of human fetal osteoblasts (hFOB) cells of coated samples (titanium nanocopper (Ti Cu), titanium nanohydroxyapatite (Ti HA) and titanium nanocopper ion doped hydroxyapatite (Ti Cu/HA) and uncoated samples (Ti) in order to assess the suitability of these surface modifications on Ti-6Al-7Nb for dental implant application. Materials and Methods The cytotoxicity was studied by examining the hFOB cell response by MTT assessment. The cell morphology was evaluated by inverted microscopy and observed under scanning electronic microscopy (SEM). Results MTT assay results displayed that the Cu content on the surface of Ti-6Al-7Nb alloys did not produce any cytotoxic effect on cell viability. The cell viability rate in all samples ranges from 97% to 126%, indicating that hFOB cells grew at a high proliferation rate. However, no significant differences in cell viability were observed between Ti and Ti Cu and between Ti HA and Ti Cu/HA groups. Microscopic examination demonstrated no difference in the cell morphology of hFOB among all samples. In addition, SEM observation indicated favorable adhesion and spreading of the cells on the coated and uncoated samples. Conclusions The surface modification of Ti-6Al-7Nb alloy with Cu, HA, and Cu/HA exhibits good cell biocompatibility, and the Cu has no influence on the cell proliferation and differentiation of hFOB.
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Affiliation(s)
- Hanan Ali Hameed
- Prosthdontic Department, College of Dentistry, University of Babylon, Iraq
| | - Haider Ali Hasan
- Oral and Maxillofacial Surgery Department, College of Dentistry, University of Babylon, Iraq
| | - Norhayati Luddin
- Prosthodontic Unit, School of Dental Sciences, Universiti Sains Malaysia, Kota Bharu, Kelantan, Malaysia
| | - Adam Husein
- Prosthodontic Unit, School of Dental Sciences, Universiti Sains Malaysia, Kota Bharu, Kelantan, Malaysia
| | - Azirrawani Ariffin
- Prosthodontic Unit, School of Dental Sciences, Universiti Sains Malaysia, Kota Bharu, Kelantan, Malaysia
| | - Mohammad Khursheed Alam
- Department of Preventive Dental Science, College of Dentistry, Jouf University, Sakaka, Aljouf, Saudi Arabia
- Center for Transdisciplinary Research (CFTR), Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India
- Department of Public Health, Faculty of Allied Health Sciences, Daffodil International University, Dhaka, Bangladesh
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11
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Wu Y, Zhou H, Zeng Y, Xie H, Ma D, Wang Z, Liang H. Recent Advances in Copper-Doped Titanium Implants. MATERIALS (BASEL, SWITZERLAND) 2022; 15:2342. [PMID: 35407675 PMCID: PMC8999642 DOI: 10.3390/ma15072342] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/11/2022] [Accepted: 03/18/2022] [Indexed: 01/27/2023]
Abstract
Titanium (Ti) and its alloys have been extensively used as implant materials in clinical practice due to their high corrosion resistance, light weight and excellent biocompatibility. However, the insufficient intrinsic osteogenic capacity of Ti and its alloys impedes bone repair and regeneration, and implant-related infection or inflammation remains the leading cause of implant failure. Bacterial infections or inflammatory diseases constitute severe threats to human health. The physicochemical properties of the material are critical to the success of clinical procedures, and the doping of Cu into Ti implants has been confirmed to be capable of enhancing the bone repair/regeneration, angiogenesis and antibacterial capability. This review outlines the recent advances in the design and preparation of Cu-doped Ti and Ti alloy implants, with a special focus on various methods, including plasma immersion implantation, magnetron sputtering, galvanic deposition, microarc oxidation and sol-gel synthesis. More importantly, the antibacterial and mechanical properties as well as the corrosion resistance and biocompatibility of Cu-doped Ti implants from different methods are systematically reviewed, and their prospects and limitations are also discussed.
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Affiliation(s)
| | | | | | | | | | - Zhoucheng Wang
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China; (Y.W.); (H.Z.); (Y.Z.); (H.X.); (D.M.)
| | - Hanfeng Liang
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China; (Y.W.); (H.Z.); (Y.Z.); (H.X.); (D.M.)
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12
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Akhiani O, Zangouie N, Laripour R, Rashidian A, Ebrahimi M, Hami Z, Chamanara M. Sub-Flap Use of Nano-Selenium Oxide Solution Enhances Skin Flap Viability in Rats: Study the Novel Role of mTOR and p-mTOR Expression. Aesthetic Plast Surg 2022; 46:1452-1462. [PMID: 35048147 DOI: 10.1007/s00266-021-02681-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 11/14/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND Nano-selenium oxide (NSeO) particles are highly noticeable due to their tissue-protective and antioxidant properties. For this purpose, the effect of NSeO was evaluated on skin flap survival and flap oxidative stress markers in rats. Also, another effect of NSeO was investigated on the expression of mTOR and p-mTOR. MATERIALS AND METHODS Fifty rats were divided into five groups of ten. Skin flap size was 3×8 cm in all groups. Groups were: (1) Sham, (2) Flap Surgery group, (3) Flap Surgery + NSeO, (4) Flap Surgery + Rapamycin (mTOR inhibitor), (5) Flap Surgery + Rapamycin + NSeO. The flap necrosis rate was computed using the paper pattern method on day seven after surgery. After day seven, flap tissues were collected for histological evaluations. Then, malondialdehyde (MDA) content and superoxide dismutase (SOD) activity were measured. Furthermore, the expression levels of mTOR and p-mTOR were measured using the Western blot method. RESULTS Treatment with NSeO significantly reduced necrosis (P<0.05). It also resulted in a decrease in MDA level (P<0.05). Histologically, NSeO reduced inflammation and increased positive signs of tissue healing (epithelialization, neovascularization, fibroblast migration, and granulation tissue). NSeO increased SOD activity significantly (P<0.05), whereas, using rapamycin reversed these effects. Also, in all groups, mTOR changes were not significant. Additionally, p-mTOR expression was significantly reduced in groups that rapamycin was injected. CONCLUSION NSeO can reduce flap necrosis and enhance tissue healing in rats. So, it can potentially be used clinically to promote tissue repair significantly, and its effects are independent of the mTOR pathway. NO LEVEL ASSIGNED This journal requires that authors assign a level of evidence to each submission to which Evidence-Based Medicine rankings are applicable. This excludes Review Articles, Book Reviews, and manuscripts that concern Basic Science, Animal Studies, Cadaver Studies, and Experimental Studies. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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Affiliation(s)
- Omid Akhiani
- Department of Pharmacology, School of Medicine, Aja University of Medical Sciences, Tehran, Iran
- Department of Pharmacology and toxicology, School of Pharmacy, Iran university of medical sciences, Tehran, Iran
| | - Nasim Zangouie
- Pharmaceutical Sciences Branch, Tehran Islamic Azad University, Tehran, Iran
| | - Reza Laripour
- Center for Educational Research in Medical Sciences, University of Medical Sciences, Tehran, Iran
- School of Medicine, Aja University of Medical Sciences, Tehran, Iran
| | - Amir Rashidian
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohsen Ebrahimi
- Department of pharmacology and toxicology, Faculty of Medicine, AJA University of Medical Sciences, Tehran, Iran
| | - Zahra Hami
- Toxicology Research Center, Aja University of Medical Sciences, 1411718541, Tehran, Iran
| | - Mohsen Chamanara
- Department of Pharmacology, School of Medicine, Aja University of Medical Sciences, Tehran, Iran.
- Toxicology Research Center, Aja University of Medical Sciences, 1411718541, Tehran, Iran.
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Nosewicz J, Spaccarelli N, Roberts KM, Hart PA, Kaffenberger JA, Trinidad JC, Kaffenberger BH. The Epidemiology, Impact, and Diagnosis of Micronutrient Nutritional Dermatoses Part 1: Zinc, Selenium, Copper, Vitamin A, and Vitamin C. J Am Acad Dermatol 2021; 86:267-278. [PMID: 34748862 DOI: 10.1016/j.jaad.2021.07.079] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 07/16/2021] [Accepted: 07/23/2021] [Indexed: 11/27/2022]
Abstract
Dermatologists play a critical role in diagnosing and managing nutritional deficiencies as they often present with cutaneous findings. Traditionally, nutritional dermatoses are taught in the context of developing countries, famine, population displacement, and poor healthcare access; however, in the United States, common risk factors include chronic liver disease, alcoholism, psychiatric disease, bariatric surgery, inflammatory bowel disease, and hemodialysis. Additionally, nutritional dermatoses may be underdiagnosed in the United States and result in increased morbidity and utilization of hospital resources. There is a need for providers in developed nations to identify these deficiencies, and this review aims to meet that practice gap and provide relevant context to these diseases for dermatologists. This two-part review series will focus on the epidemiology, impact, appearance, and diagnostic modalities for micronutrient deficiencies, including zinc, selenium, copper, and vitamins A and C in part one. The companion review will focus on the B-complex vitamins.
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Affiliation(s)
- Jacob Nosewicz
- Division of Dermatology, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Natalie Spaccarelli
- Division of Dermatology, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Kristen M Roberts
- Division of Gastroenterology, Hepatology and Nutrition, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Phil A Hart
- Division of Gastroenterology, Hepatology and Nutrition, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Jessica A Kaffenberger
- Division of Dermatology, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - John C Trinidad
- Division of Dermatology, The Ohio State University Wexner Medical Center, Columbus, Ohio
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14
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Angiogenin and Copper Crossing in Wound Healing. Int J Mol Sci 2021; 22:ijms221910704. [PMID: 34639045 PMCID: PMC8509573 DOI: 10.3390/ijms221910704] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 09/29/2021] [Accepted: 10/01/2021] [Indexed: 02/06/2023] Open
Abstract
Angiogenesis plays a key role in the wound healing process, involving the migration, growth, and differentiation of endothelial cells. Angiogenesis is controlled by a strict balance of different factors, and among these, the angiogenin protein plays a relevant role. Angiogenin is a secreted protein member of the ribonuclease superfamily that is taken up by cells and translocated to the nucleus when the process of blood vessel formation has to be promoted. However, the chemical signaling that activates the protein, normally present in the plasma, and the transport pathways through which the protein enters the cell are still largely unclear. Copper is also an angiogenic factor that regulates angiogenin expression and participates in the activation of common signaling pathways. The interaction between angiogenin and copper could be a relevant mechanism in regulating the formation of new blood vessel pathways and paving the way to the development of new drugs for chronic non-healing wounds.
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15
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Kjaer M, Frederiksen AKS, Nissen NI, Willumsen N, van Hall G, Jorgensen LN, Andersen JR, Ågren MS. Multinutrient Supplementation Increases Collagen Synthesis during Early Wound Repair in a Randomized Controlled Trial in Patients with Inguinal Hernia. J Nutr 2020; 150:792-799. [PMID: 31897483 DOI: 10.1093/jn/nxz324] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Revised: 09/16/2019] [Accepted: 12/05/2019] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Inguinal hernia disease is associated with an imbalanced collagen metabolism. Surgical stress has a negative impact on nutrients important for collagen synthesis. OBJECTIVE We hypothesized that supplementation with a combination of nutrients would enhance collagen biosynthesis in inguinal hernia disease patients when undergoing hernia repair. METHODS In this exploratory randomized controlled trial, 21 men (age: 55.2 ± 2.8 y; BMI: 25.0 ± 0.7 kg/m2) scheduled for Lichtenstein inguinal hernia repair were assigned to multinutrient supplementation (n = 10; multinutrient group) or no multinutrient supplementation (n = 11; control group). The multinutrient group received 14 g l-arginine, 14 g l-glutamine, 1250 mg vitamin C, and 55 mg zinc daily starting 14 d before surgery and ending 14 d after surgery. The multinutrient and control groups received high-quality protein to ensure a daily intake of 1.5 g protein/kg. Collagen biosynthesis was measured by the biomarkers type I procollagen propeptide (CICP), type III procollagen propeptide (PRO-C3), and type V procollagen propeptide (PRO-C5) in the sera on days -14, 0, and 1, and in the wound fluids on postoperative days 1 and 2. Compliance was recorded after the 28-d intervention period. RESULTS Serum PRO-C5 concentrations decreased (P < 0.05) postoperatively in the control but not the multinutrient group. Neither CICP nor PRO-C3 serum concentrations differed significantly between the 2 groups. In wound fluid, the CICP concentrations increased (P < 0.05) from days 1 to 2 in the multinutrient group and were 49% higher (P = 0.10) than those in the control group on day 2. Wound fluid concentrations PRO-C3 and PRO-C5 showed no significant time or group differences. The 28-d compliance was similar (P = 0.27) in the 2 groups. CONCLUSION Oral supplementation with arginine, glutamine, vitamin C, and zinc augment collagen synthesis during the first 2 d after inguinal hernia repair. This trial was registered at clinicaltrials.gov as NCT03221686.
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Affiliation(s)
- Marie Kjaer
- Digestive Disease Center, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark
| | | | | | | | - Gerrit van Hall
- Clinical Metabolomics Core Facility, Department of Clinical Biochemistry, Rigshospitalet, and Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | | | - Jens Rikardt Andersen
- Department of Nutrition, Exercise, and Sports, University of Copenhagen, Copenhagen, Denmark
| | - Magnus S Ågren
- Digestive Disease Center, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark.,Copenhagen Wound Healing Center, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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16
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Yang JJ, Huang YC, Chuang TH, Herr DR, Hsieh MF, Huang CJ, Huang CM. Cysteine-Capped Hydrogels Incorporating Copper as Effective Antimicrobial Materials against Methicillin-Resistant Staphylococcus aureus. Microorganisms 2020; 8:E149. [PMID: 31973160 PMCID: PMC7074715 DOI: 10.3390/microorganisms8020149] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 01/17/2020] [Accepted: 01/19/2020] [Indexed: 11/17/2022] Open
Abstract
Methicillin-resistant Staphylococcus aureus (S. aureus) (MRSA) has become an alarming threat to public health, and infected soft tissue. Antibiotics are commonly used to treat skin infection with MRSA, but the inappropriate use of antibiotics runs a considerable risk of generating resistant S. aureus. In this study, we created a cysteine-capped hydrogel able to absorb and release copper, an ion with the capability of suppressing the growth of USA300, a community-acquired MRSA. The results of analysis of Fourier transform infrared spectroscopy (FTIR) revealed the binding of copper to a cysteine-capped hydrogel. The topical application of a cysteine-capped hydrogel binding with copper on USA300-infected skin wounds in the dorsal skin of Institute of Cancer Research (ICR) mice significantly enhanced wound healing, hindered the growth of USA300, and reduced the production of pro-inflammatory macrophage inflammatory protein 2-alpha (MIP-2) cytokine. Our work demonstrates a newly designed hydrogel that conjugates a cysteine molecule for copper binding. The cysteine-capped hydrogel can potentially chelate various antimicrobial metals as a novel wound dressing.
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Affiliation(s)
- John Jackson Yang
- Department of Life Sciences, National Central University, Taoyuan County 32001, Taiwan; (J.J.Y.); (Y.-C.H.)
| | - Yung-Chi Huang
- Department of Life Sciences, National Central University, Taoyuan County 32001, Taiwan; (J.J.Y.); (Y.-C.H.)
| | - Tsung-Hsien Chuang
- Immunology Research Center, National Health Research Institutes (NHRI), Zhunan, Miaoli County 35053, Taiwan;
| | - Deron Raymond Herr
- Department of Pharmacology, National University of Singapore, Singapore 117543, Singapore;
| | - Ming-Fa Hsieh
- Department of Biomedical Engineering, Chung Yuan Christian University, Taoyuan City 32023, Taiwan
| | - Chun-Jen Huang
- Department of Biomedical Sciences and Engineering, National Central University, Taoyuan County 32001, Taiwan;
| | - Chun-Ming Huang
- Department of Biomedical Sciences and Engineering, National Central University, Taoyuan County 32001, Taiwan;
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17
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Coger V, Million N, Rehbock C, Sures B, Nachev M, Barcikowski S, Wistuba N, Strauß S, Vogt PM. Tissue Concentrations of Zinc, Iron, Copper, and Magnesium During the Phases of Full Thickness Wound Healing in a Rodent Model. Biol Trace Elem Res 2019; 191:167-176. [PMID: 30552609 PMCID: PMC6656798 DOI: 10.1007/s12011-018-1600-y] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 11/30/2018] [Indexed: 01/19/2023]
Abstract
Wound healing is a complex orchestration of processes involving cell proliferation, migration, differentiation, anabolism, and catabolism in order to restore skin continuity. Within these processes, elements such as metallic ions are involved due to their implications in cell behavior and enzymatic activity regulation. This study analyzed the kinetics of zinc, iron, copper and magnesium concentrations in a full thickness open wound rat model over 14 days. We made wounds with a diameter of 6 mm on the back of Lewis rats and let them heal naturally prior to analysis by histology and inductively coupled plasma mass spectrometry analysis. Histological and immunofluorescence analysis confirmed an inflammation phase until 7 days, epithelial proliferation phase from 16 h to 10 days, and remodeling phase from 7 days onward. These defined phases were correlated with the measured metal element kinetics. Zinc concentrations showed an inverted parabolic progression between 30.4 and a maximum of 39.9 μg/g dry weight. Magnesium values had a similar pattern between 283 and 499 μg/g dry weight. Copper concentrations, on the other hand, followed an inverted sigmoid trend with a decrease from 9.8 to 1.5 μg/g dry weight. Iron had a slight decrease in concentration for 24 h followed by an increase to a maximum of 466 μg/g dry weight. In conclusion, zinc, iron, and copper, even though differing in their total mass within the wound, exhibited concentration curve transitions at day 3. Interestingly, this time point correlates with the maximum proliferating keratinocyte rate during the proliferation phase.
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Affiliation(s)
- Vincent Coger
- Department of Plastic, Aesthetic, Hand and Reconstructive Surgery, Hannover Medical School, Hannover, Germany.
| | - Nina Million
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen, University of Duisburg-Essen, Duisburg, Germany
| | - Christoph Rehbock
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen, University of Duisburg-Essen, Duisburg, Germany
| | - Bernd Sures
- Aquatic Ecology and Centre for Water and Environmental Research (ZWU), University of Duisburg-Essen, Essen, Germany
| | - Milen Nachev
- Aquatic Ecology and Centre for Water and Environmental Research (ZWU), University of Duisburg-Essen, Essen, Germany
| | - Stephan Barcikowski
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen, University of Duisburg-Essen, Duisburg, Germany
| | - Nina Wistuba
- Department of Plastic, Aesthetic, Hand and Reconstructive Surgery, Hannover Medical School, Hannover, Germany
| | - Sarah Strauß
- Department of Plastic, Aesthetic, Hand and Reconstructive Surgery, Hannover Medical School, Hannover, Germany
| | - Peter M Vogt
- Department of Plastic, Aesthetic, Hand and Reconstructive Surgery, Hannover Medical School, Hannover, Germany
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Delaney CL, Smale MK, Miller MD. Nutritional Considerations for Peripheral Arterial Disease: A Narrative Review. Nutrients 2019; 11:E1219. [PMID: 31146408 PMCID: PMC6627356 DOI: 10.3390/nu11061219] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 05/20/2019] [Accepted: 05/24/2019] [Indexed: 12/12/2022] Open
Abstract
Those with peripheral arterial disease (PAD) require important considerations with respect to food and nutrition, owing to advanced age, poor diet behaviours and immobility associated with the disease process and co-morbid state. These considerations, coupled with the economic effectiveness of medical nutrition therapy, mandate that dietetic care plays a vital role in the management of PAD. Despite this, optimising dietetic care in PAD remains poorly understood. This narrative review considers the role of medical nutrition therapy in every stage of the PAD process, ranging from the onset and initiation of disease to well established and advanced disease. In each case, the potential benefits of traditional and novel medical nutrition therapy are discussed.
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Affiliation(s)
- Christopher L Delaney
- Department of Vascular Surgery, Flinders Medical Centre and Flinders University, Bedford Park 5042, South Australia, Australia.
| | - Matilda K Smale
- Department of Nutrition and Dietetics, College of Nursing and Health Sciences, Flinders University, Bedford Park 5042, South Australia, Australia.
| | - Michelle D Miller
- Department of Nutrition and Dietetics, College of Nursing and Health Sciences, Flinders University, Bedford Park 5042, South Australia, Australia.
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Sayyafan MS, Ramzi M, Salmanpour R. Clinical assessment of topical erythromycin gel with and without zinc acetate for treating mild-to-moderate acne vulgaris. J DERMATOL TREAT 2019; 31:730-733. [PMID: 30998422 DOI: 10.1080/09546634.2019.1606394] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Purpose: Erythromycin is an effective topical antibiotic for treating mild-to-moderate inflammatory acne vulgaris, especially papules acne during puberty as well as papules - pustular acne in adult women. Erythromycin is a macrolide antibiotic that has long been used as a topical dosage form to treat acne. It has favorable effects in resolving inflammatory acne lesions not only by reducing Propioni bacterium acnes density, but also by directly inhibiting neutrophil chemotactic factors and reactive oxygen species (ROS) production. Zinc, a metallic element has bacteriostatic activity against Propioni bacterium acnes. Combining zinc with antibiotic (erythromycin) can reduce antibiotic resistance and increase antibiotic absorption in-to the skin.Material and methods: In the present study, erythromycin (2% w/v) with zinc acetate (1.2% w/v) as 'topical gel' and erythromycin (2% w/v) gel alone were evaluated for treating mild to moderate inflammatory acne vulgaris. This double-blind study was carried out on 102 patients 13-25 years of age, divided into two groups. The group A received erythromycin and group B received erythromycin with zinc acetate topical gels during 3 weeks. Acne grading and lesion counts for comedones, papules and pustules were performed during each visit zero, first, second and third weeks.Results: Erythromycin treatment (with zinc acetate) gel showed to be more effective than erythromycin (alone) gel with respect to reducing the number of acne lesions and severity grade of acne.Number of lesions and severity of acne were significantly reduced at the end of 3rd week in both groups (p < .001). Conclusions: In conclusion, it can be stated that erythromycin with and without zinc acetate was clinically effective, and both formulations produced a significant reductions in acne grading as well as inflamed and noninflamed lesion counts (p < .000). Statistically, there was no significant difference between formulation A and B.
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Affiliation(s)
- Mohammad Sadegh Sayyafan
- Department of Pharmaceutics School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Maryam Ramzi
- Department of Pharmaceutics School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Rahmatollah Salmanpour
- Department of Dermatology School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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20
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Effect of copper nanoparticles on physico-chemical properties of chitosan and gelatin-based scaffold developed for skin tissue engineering application. 3 Biotech 2019; 9:102. [PMID: 30800613 DOI: 10.1007/s13205-019-1624-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 02/08/2019] [Indexed: 01/08/2023] Open
Abstract
Development of new and effective scaffold continues to be an area of intense research in skin tissue engineering. The objective of this study was to study the effect of copper nanoparticles over physico-chemical properties of the chitosan and gelatin composite scaffolds for skin tissue engineering. The copper-doped scaffolds were prepared using freeze-drying method. Chitosan and gelatin were taken in varied composition with 0.01%, 0.02%, and 0.03% Cu nanoparticles. The physico-chemical properties of the copper nanoparticles and the scaffolds were analyzed using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy. Porosity of the scaffolds was measured by liquid displacement method and hemocompatibility was tested using goat blood. SEM micrographs of the scaffolds displayed the interconnected pores which ranged between 25 and 40 µm. This average pore size was later enhanced to 95 µm after the addition of copper nanoparticles. Cell viability assay was performed to ensure the growth and proliferation of the skin cells over the scaffolds. FTIR, EDS, and XRD analysis of scaffolds confirmed the presence of copper in the chitosan-based scaffolds. Porosity measurement showed the interconnectivity between pores which ranged between 65 and 88% as required for skin tissue engineering application. The degradation study of the scaffolds was done which depicted that, after the addition of copper nanoparticles with 0.03%, degradation rate was decreased. SEM and cytocompatibility assay on all scaffolds showed the cell adhesion and proliferation on the scaffolds which was not affected after addition of copper nanoparticles. Oxidative stress evaluation was done to study the effect of copper nanoparticles on the cells which showed that there was no such production of ROS in the scaffolds. Hence, scaffolds prepared after doping of copper nanoparticles show suitable physico-chemical and biological properties for skin tissue engineering application.
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Abstract
Wound management is a notable healthcare and financial burden, accounting for >$10 billion in annual healthcare spending in the United States. A multidisciplinary approach involving orthopaedic and plastic surgeons, wound care nursing, and medical and support staff is often necessary to improve outcomes. Orthopaedic surgeons must be familiar with the fundamental principles and evidenced-based concepts for the management of acute and chronic wounds. Knowledge of surgical dressings, negative pressure wound therapy, tissue expanders, dermal apposition, biologics, and extracellular matrices can aide practitioners in optimizing wound care.
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Vollmer DL, West VA, Lephart ED. Enhancing Skin Health: By Oral Administration of Natural Compounds and Minerals with Implications to the Dermal Microbiome. Int J Mol Sci 2018; 19:E3059. [PMID: 30301271 PMCID: PMC6213755 DOI: 10.3390/ijms19103059] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 09/30/2018] [Accepted: 10/01/2018] [Indexed: 12/21/2022] Open
Abstract
The history of cosmetics goes back to early Egyptian times for hygiene and health benefits while the history of topical applications that provide a medicinal treatment to combat dermal aging is relatively new. For example, the term cosmeceutical was first coined by Albert Kligman in 1984 to describe topical products that afford both cosmetic and therapeutic benefits. However, beauty comes from the inside. Therefore, for some time scientists have considered how nutrition reflects healthy skin and the aging process. The more recent link between nutrition and skin aging began in earnest around the year 2000 with the demonstrated increase in peer-reviewed scientific journal reports on this topic that included biochemical and molecular mechanisms of action. Thus, the application of: (a) topical administration from outside into the skin and (b) inside by oral consumption of nutritionals to the outer skin layers is now common place and many journal reports exhibit significant improvement for both on a variety of dermal parameters. Therefore, this review covers, where applicable, the history, chemical structure, and sources such as biological and biomedical properties in the skin along with animal and clinical data on the oral applications of: (a) collagen, (b) ceramide, (c) β-carotene, (d) astaxanthin, (e) coenzyme Q10, (f) colostrum, (g) zinc, and (h) selenium in their mode of action or function in improving dermal health by various quantified endpoints. Lastly, the importance of the human skin microbiome is briefly discussed in reference to the genomics, measurement, and factors influencing its expression and how it may alter the immune system, various dermal disorders, and potentially be involved in chemoprevention.
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Affiliation(s)
- David L Vollmer
- 4Life Research, Scientific Research Division, Sandy, UT 84070, USA.
| | - Virginia A West
- 4Life Research, Scientific Research Division, Sandy, UT 84070, USA.
| | - Edwin D Lephart
- Department of Physiology, Developmental Biology and The Neuroscience Center, Brigham Young University, Provo, UT 84602, USA.
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23
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Berry JAD, Miulli DE, Lam B, Elia C, Minasian J, Podkovik S, Wacker MRS. The neurosurgical wound and factors that can affect cosmetic, functional, and neurological outcomes. Int Wound J 2018; 16:71-78. [PMID: 30251324 DOI: 10.1111/iwj.12993] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 08/28/2018] [Indexed: 01/02/2023] Open
Abstract
Surgically accessing pathological lesions located within the central nervous system (CNS) frequently requires creating an incision in cosmetic regions of the head and neck. The biggest factors of surgical success typically tend to focus on the middle portion of the surgery, but a vast majority of surgical complications tend to happen towards the end of a case, during closure of the surgical site incisions. One of the most difficult complications for a surgeon to deal with is having to take a patient back to the operating room for wound breakdowns and, even worse, wound or CNS infections, which can negate all the positive outcomes from the surgery itself. In this paper, we discuss the underlying anatomy, pharmacological considerations, surgical techniques and nutritional needs necessary to help facilitate appropriate wound healing. A successful surgery begins with preoperative planning regarding the placement of the surgical incision, being cognizant of cosmetics, and the effects of possible adjuvant radiation therapy on healing incisions. We need to assess patient's medications and past medical history to make sure we can optimise conditions for proper wound reepithelialisation, such as minimizing the amount of steroids and certain antibiotics. Contrary to harmful medications, it is imperative to optimise nutritional intake with adequate supplementation and vitamin intake. The goals of this paper are to reinforce the mechanisms by which surgical wounds can fail, leading to postoperative complications, and to provide surgeons with the reminder and techniques that can help foster a more successful surgical outcome.
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Affiliation(s)
- James A D Berry
- Division of Neurosurgery, Department of Surgery, Riverside University Health System, Moreno Valley, California
| | - Dan E Miulli
- Division of Neurosurgery, Department of Surgery, Arrowhead Regional Medical Center, Colton, California
| | - Benjamin Lam
- Department of Plastic and Reconstructive Surgery, Philadelphia College of Osteopathic Medicine, Philadelphia, Pennsylvania
| | - Christopher Elia
- Division of Neurosurgery, Department of Surgery, Riverside University Health System, Moreno Valley, California
| | - Julia Minasian
- Department of Neurosurgery, Western University College of Osteopathic Medicine, Pomona, California
| | - Stacey Podkovik
- Division of Neurosurgery, Department of Surgery, Riverside University Health System, Moreno Valley, California
| | - Margaret R S Wacker
- Division of Neurosurgery, Department of Surgery, Arrowhead Regional Medical Center, Colton, California
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24
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Lin PH, Sermersheim M, Li H, Lee PHU, Steinberg SM, Ma J. Zinc in Wound Healing Modulation. Nutrients 2017; 10:E16. [PMID: 29295546 PMCID: PMC5793244 DOI: 10.3390/nu10010016] [Citation(s) in RCA: 242] [Impact Index Per Article: 34.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 12/17/2017] [Accepted: 12/21/2017] [Indexed: 02/07/2023] Open
Abstract
Wound care is a major healthcare expenditure. Treatment of burns, surgical and trauma wounds, diabetic lower limb ulcers and skin wounds is a major medical challenge with current therapies largely focused on supportive care measures. Successful wound repair requires a series of tightly coordinated steps including coagulation, inflammation, angiogenesis, new tissue formation and extracellular matrix remodelling. Zinc is an essential trace element (micronutrient) which plays important roles in human physiology. Zinc is a cofactor for many metalloenzymes required for cell membrane repair, cell proliferation, growth and immune system function. The pathological effects of zinc deficiency include the occurrence of skin lesions, growth retardation, impaired immune function and compromised would healing. Here, we discuss investigations on the cellular and molecular mechanisms of zinc in modulating the wound healing process. Knowledge gained from this body of research will help to translate these findings into future clinical management of wound healing.
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Affiliation(s)
- Pei-Hui Lin
- Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA.
- Department of Surgery, Division of Cardiac Surgery, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA.
| | - Matthew Sermersheim
- Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA.
- Department of Surgery, Division of Cardiac Surgery, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA.
| | - Haichang Li
- Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA.
- Department of Surgery, Division of Cardiac Surgery, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA.
| | - Peter H U Lee
- Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA.
- Department of Surgery, Division of Cardiac Surgery, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA.
| | - Steven M Steinberg
- Department of Surgery, Division of Trauma, Critical Care and Burn, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA.
| | - Jianjie Ma
- Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA.
- Department of Surgery, Division of Cardiac Surgery, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA.
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25
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Zarrintaj P, Moghaddam AS, Manouchehri S, Atoufi Z, Amiri A, Amirkhani MA, Nilforoushzadeh MA, Saeb MR, Hamblin MR, Mozafari M. Can regenerative medicine and nanotechnology combine to heal wounds? The search for the ideal wound dressing. Nanomedicine (Lond) 2017; 12:2403-2422. [DOI: 10.2217/nnm-2017-0173] [Citation(s) in RCA: 135] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Skin is the outermost covering of the human body and at the same time the largest organ comprising 15% of body weight and 2 m2 surface area. Skin plays a key role as a barrier against the outer environment depending on its thickness, color and structure, which differ from one site to another. The four major types of problematic wounds include ulcers (diabetic, venous, pressure) and burn wounds. Developing novel dressings helps us to improve the wound healing process in difficult patients. Recent advances in regenerative medicine and nanotechnology are revolutionizing the field of wound healing. Antimicrobial activity, exogenous cell therapy, growth factor delivery, biodegradable and biocompatible matrix construction, all play a role in hi-tech dressing design. In the present review, we discuss how the principles of regenerative medicine and nanotechnology can be combined in innovative wound dressings.
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Affiliation(s)
- Payam Zarrintaj
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | | | - Saeed Manouchehri
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Zhaleh Atoufi
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Anahita Amiri
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | | | | | - Mohammad Reza Saeb
- Department of Resin & Additives, Institute for Color Science & Technology, P.O. Box 16765–654, Tehran, Iran
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114, USA
- Department of Dermatology, Harvard Medical School, Boston, MA 02115, USA
- Harvard-MIT Division of Health Sciences & Technology, Cambridge, MA 02139, USA
| | - Masoud Mozafari
- Nanotechnology & Advanced Materials Department, Materials & Energy Research Center (MERC), Tehran, Iran
- Cellular & Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
- Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
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26
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Zhang L, Guo J, Huang X, Zhang Y, Han Y. The dual function of Cu-doped TiO 2 coatings on titanium for application in percutaneous implants. J Mater Chem B 2016; 4:3788-3800. [PMID: 32263317 DOI: 10.1039/c6tb00563b] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
To endow percutaneous implants with improved skin integration and antibacterial activity, microporous TiO2 coatings doped with different doses of Cu2+ (0-1.93 wt%) were directly fabricated on Ti via micro-arc oxidation (MAO). The structures of coatings were investigated; the adhesion, proliferation, phenotype, differentiation and extracellular collagen secretion of fibroblasts, as well as the response of Staphylococcus aureus (S. aureus), were also investigated. The obtained results show that microporous TiO2 coatings all consist of antase and rutile, and incorporation of Cu2+ almost does not alter the phase component, surface roughness and topography of coating. Cu2+ facilitates the fibroblasts to switch to fibrotic phenotype and differentiate to myofibroblasts by enhancing the production of intracellular specific protein contents (connective tissue growth factor (CTGF) and alpha smooth muscle action (α-SMA)). Compared to Ti, the adhesion and proliferation of fibroblasts can be significantly enhanced on the TiO2 coating with 0.67 wt% Cu, while greatly inhibited with 1.93 wt% Cu. The difference should be due to the compromise between the positive effectiveness and the cytotoxicity of Cu2+. Cu2+-doped TiO2 coatings show good antibacterial properties, including contact-killing and release-killing of S. aureus, and these properties are positively related to the dose of Cu2+ in the coatings.
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Affiliation(s)
- Lan Zhang
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China.
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27
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Urso E, Maffia M. Behind the Link between Copper and Angiogenesis: Established Mechanisms and an Overview on the Role of Vascular Copper Transport Systems. J Vasc Res 2015; 52:172-96. [PMID: 26484858 DOI: 10.1159/000438485] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Accepted: 07/07/2015] [Indexed: 11/19/2022] Open
Abstract
Angiogenesis critically sustains the progression of both physiological and pathological processes. Copper behaves as an obligatory co-factor throughout the angiogenic signalling cascades, so much so that a deficiency causes neovascularization to abate. Moreover, the progress of several angiogenic pathologies (e.g. diabetes, cardiac hypertrophy and ischaemia) can be tracked by measuring serum copper levels, which are being increasingly investigated as a useful prognostic marker. Accordingly, the therapeutic modulation of body copper has been proven effective in rescuing the pathological angiogenic dysfunctions underlying several disease states. Vascular copper transport systems profoundly influence the activation and execution of angiogenesis, acting as multi-functional regulators of apparently discrete pro-angiogenic pathways. This review concerns the complex relationship among copper-dependent angiogenic factors, copper transporters and common pathological conditions, with an unusual accent on the multi-faceted involvement of the proteins handling vascular copper. Functions regulated by the major copper transport proteins (CTR1 importer, ATP7A efflux pump and metallo-chaperones) include the modulation of endothelial migration and vascular superoxide, known to activate angiogenesis within a narrow concentration range. The potential contribution of prion protein, a controversial regulator of copper homeostasis, is discussed, even though its angiogenic involvement seems to be mainly associated with the modulation of endothelial motility and permeability.
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Affiliation(s)
- Emanuela Urso
- Department of Biological and Environmental Science and Technologies, University of Salento, Lecce, Italy
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28
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Peng F, Muzik O, Gatson J, Kernie SG, Diaz-Arrastia R. Assessment of Traumatic Brain Injury by Increased 64Cu Uptake on 64CuCl2 PET/CT. J Nucl Med 2015; 56:1252-7. [PMID: 26112025 DOI: 10.2967/jnumed.115.154575] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Accepted: 06/17/2015] [Indexed: 11/16/2022] Open
Abstract
UNLABELLED Copper is a nutritional trace element required for cell proliferation and wound repair. METHODS To explore increased copper uptake as a biomarker for noninvasive assessment of traumatic brain injury (TBI), experimental TBI in C57BL/6 mice was induced by controlled cortical impact, and (64)Cu uptake in the injured cortex was assessed with (64)CuCl2 PET/CT. RESULTS At 24 h after intravenous injection of the tracer, uptake was significantly higher in the injured cortex of TBI mice (1.15 ± 0.53 percentage injected dose per gram of tissue [%ID/g]) than in the uninjured cortex of mice without TBI (0.53 ± 0.07 %ID/g, P = 0.027) or the cortex of mice that received an intracortical injection of zymosan A (0.62 ± 0.22 %ID/g, P = 0.025). Furthermore, uptake in the traumatized cortex of untreated TBI mice (1.15 ± 0.53 %ID/g) did not significantly differ from that in minocycline-treated TBI mice (0.93 ± 0.30 %ID/g, P = 0.33). CONCLUSION Overall, the data suggest that increased (64)Cu uptake in traumatized brain tissues holds potential as a new biomarker for noninvasive assessment of TBI with (64)CuCl2 PET/CT.
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Affiliation(s)
- Fangyu Peng
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, Texas Advanced Imaging Research Center, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Otto Muzik
- Carman and Ann Adams Department of Pediatrics, School of Medicine, Wayne State University, Detroit, Michigan Department of Radiology, School of Medicine, Wayne State University, Detroit, Michigan
| | - Joshua Gatson
- Department of Surgery, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Steven G Kernie
- Department of Pediatrics and Department of Pathology and Cell Biology, Columbia University College of Physicians and Surgeons, New York, New York; and
| | - Ramon Diaz-Arrastia
- Center for Neurosciences and Regenerative Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland
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29
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Abstract
Today, obesity is considered an epidemic all over the world and it is recognized as one of the major public health problems. Bariatric surgery is considered an appropriate therapeutic option for obesity with progressively increasing demands. The changes resulting from massive weight loss after bariatric surgery are related to numerous complications. This article will present the dermatological alterations that can be found after bariatric surgery. They will be subdivided into dermatoses that are secondary to metabolic and nutritional disorders, those derived from cutaneous structural modifications after major weight loss and the influence the latter may have in improving of certain dermatoses.
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Affiliation(s)
| | - Magda Blessmann Weber
- Universidade Federal de Ciências da Saúde de Porto
Alegre (UFCSPA) – Porto Alegre (RS), Brazil
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30
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Mao S, Zhang A, Huang S. Meta-analysis of Zn, Cu and Fe in the hair of Chinese children with recurrent respiratory tract infection. Scandinavian Journal of Clinical and Laboratory Investigation 2014; 74:561-7. [PMID: 24874085 DOI: 10.3109/00365513.2014.921323] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Trace elements play an important role in maintaining the normal metabolic and immune function. The onset of recurrent respiratory tract infection (RRI) is associated with the immune function, genetic factors and nutritional status. However, the association between the levels of trace elements and RRI remains inconclusive. We aimed to investigate the alterations of hair levels of zinc (Zn), copper (Cu) and iron (Fe) in Chinese children with RRI by performing a meta-analysis. A predefined electronic databases search was performed to identify eligible studies for the analysis of hair Zn, Cu or Fe levels in Chinese children with RRI. Thirteen studies were included. RRI patients displayed significantly lower levels of hair Zn (13 studies, random effects SMD: - 1.215, 95% CI: - 1.704 to - 0.725, p < 0.0001), Cu (11 studies, random effects SMD: - 0.384, 95% CI: - 0.717 to - 0.052, p = 0.023) and Fe (12 studies, random effects SMD: - 0.569, 95% CI: - 0.827 to - 0.312, p < 0.0001) compared with controls. No evidence of publication bias was observed. Sensitivity analysis did not change the results significantly. In conclusion, the deficiency of Zn, Cu and Fe may be contributing factors for the susceptibility of RRI in Chinese children. However, more studies in different ethnicities should be performed in the future.
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Affiliation(s)
- Song Mao
- Department of Nephrology, Nanjing Children's Hospital, Affiliated to Nanjing Medical University , Nanjing , China
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31
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Chan LN, Mike LA. The science and practice of micronutrient supplementations in nutritional anemia: an evidence-based review. JPEN J Parenter Enteral Nutr 2014; 38:656-72. [PMID: 24847050 DOI: 10.1177/0148607114533726] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Accepted: 04/03/2014] [Indexed: 12/14/2022]
Abstract
Nutritional anemia is the most common type of anemia, affecting millions of people in all age groups worldwide. While inadequate access to food and nutrients can lead to anemia, patients with certain health status or medical conditions are also at increased risk of developing nutritional anemia. Iron, cobalamin, and folate are the most recognized micronutrients that are vital for the generation of erythrocytes. Iron deficiency is associated with insufficient production of hemoglobin. Deficiency of cobalamin or folate leads to impaired synthesis of deoxyribonucleic acid, proteins, and cell division. Recent research has demonstrated that the status of copper and zinc in the body can significantly affect iron absorption and utilization. With an increasing number of patients undergoing bariatric surgical procedures, more cases of anemia associated with copper and zinc deficiencies have also emerged. The intestinal absorption of these 5 critical micronutrients are highly regulated and mediated by specific apical transport mechanisms in the enterocytes. Health conditions that persistently alter the histology of the upper intestinal architecture, expression, or function of these substrate-specific transporters, or the normal digestion and flow of these key micronutrients, can lead to nutritional anemia. The focus of this article is to review the science of intestinal micronutrient absorption, discuss the clinical assessment of micronutrient deficiencies in relation to anemia, and suggest an effective treatment plan and monitoring strategies using an evidence-based approach.
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32
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Tandon N, Cimetta E, Villasante A, Kupferstein N, Southall MD, Fassih A, Xie J, Sun Y, Vunjak-Novakovic G. Galvanic microparticles increase migration of human dermal fibroblasts in a wound-healing model via reactive oxygen species pathway. Exp Cell Res 2013; 320:79-91. [PMID: 24113575 DOI: 10.1016/j.yexcr.2013.09.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Revised: 09/03/2013] [Accepted: 09/21/2013] [Indexed: 12/13/2022]
Abstract
Electrical signals have been implied in many biological mechanisms, including wound healing, which has been associated with transient electrical currents not present in intact skin. One method to generate electrical signals similar to those naturally occurring in wounds is by supplementation of galvanic particles dispersed in a cream or gel. We constructed a three-layered model of skin consisting of human dermal fibroblasts in hydrogel (mimic of dermis), a hydrogel barrier layer (mimic of epidermis) and galvanic microparticles in hydrogel (mimic of a cream containing galvanic particles applied to skin). Using this model, we investigated the effects of the properties and amounts of Cu/Zn galvanic particles on adult human dermal fibroblasts in terms of the speed of wound closing and gene expression. The collected data suggest that the effects on wound closing are due to the ROS-mediated enhancement of fibroblast migration, which is in turn mediated by the BMP/SMAD signaling pathway. These results imply that topical low-grade electric currents via microparticles could enhance wound healing.
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Affiliation(s)
- Nina Tandon
- Columbia University, Department of Biomedical Engineering, 622 West 168th Street, MC 104B, New York 10027, NY, USA; The Cooper Union for the Advancement of Science and Art, Department of Electrical Engineering, 41 Cooper Square, New York 10003, NY, USA.
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