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Wang L, Xue Z, Tian Y, Zeng W, Zhang T, Lu H. A single-cell transcriptome atlas of Lueyang black-bone chicken skin. Poult Sci 2024; 103:103513. [PMID: 38350389 PMCID: PMC10875617 DOI: 10.1016/j.psj.2024.103513] [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: 12/18/2023] [Revised: 01/24/2024] [Accepted: 01/25/2024] [Indexed: 02/15/2024] Open
Abstract
As the largest organ of the body, the skin participates in various physiological activities, such as barrier function, sensory function, and temperature regulation, thereby maintaining the balance between the body and the natural environment. To date, compositional and transcriptional profiles in chicken skin cells have not been reported. Here, we report detailed transcriptome analyses of cell populations present in the skin of a black-feather chicken and a white-feather chicken using single-cell RNA sequencing (scRNA-seq). By analyzing cluster-specific gene expression profiles, we identified 12 cell clusters, and their corresponding cell types were also characterized. Subsequently, we characterized the subpopulations of keratinocytes, myocytes, mesenchymal cells, fibroblasts, and melanocytes. It is worth noting that we have identified a subpopulation of keratinocytes involved in pigment granule capture and a subpopulation of melanocytes involved in pigment granule deposition, both of which have a higher cell abundance in black-feather chicken compared to white-feather chicken. Meanwhile, we also compared the cellular heterogeneity features of Lueyang black-bone chicken skin with different feather colors. In addition, we also screened out 12 genes those could be potential markers of melanocytes. Finally, we validated the specific expression of SGK1, WNT5A, CTSC, TYR, and LAPTM5 in black-feather chicken, which may be the key candidate genes determining the feather color differentiation of Lueyang black-bone chicken. In summary, this study first revealed the transcriptome characteristics of chicken skin cells via scRNA-seq technology. These datasets provide valuable information for the study of avian skin characteristics and have important implications for future poultry breeding.
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Affiliation(s)
- Ling Wang
- School of Biological Science and Engineering, Shaanxi University of Technology, 723001 Hanzhong, China
- Qinba State Key Laboratory of Biological Resources and Ecological Environment, 723001 Hanzhong, China
- Engineering Research Center of Quality Improvement and Safety Control of Qinba Special Meat Products, Universities of Shaanxi Province, 723001 Hanzhong, China
- QinLing-Bashan Mountains Bioresources Comprehensive Development C. I. C., Shaanxi University of Technology, 723001 Hanzhong, China
| | - Zhen Xue
- School of Biological Science and Engineering, Shaanxi University of Technology, 723001 Hanzhong, China
| | - Yingmin Tian
- School of Mathematics and Computer Science, Shaanxi University of Technology, 723001 Hanzhong, China
| | - Wenxian Zeng
- School of Biological Science and Engineering, Shaanxi University of Technology, 723001 Hanzhong, China
- Qinba State Key Laboratory of Biological Resources and Ecological Environment, 723001 Hanzhong, China
- Engineering Research Center of Quality Improvement and Safety Control of Qinba Special Meat Products, Universities of Shaanxi Province, 723001 Hanzhong, China
| | - Tao Zhang
- School of Biological Science and Engineering, Shaanxi University of Technology, 723001 Hanzhong, China
- Qinba State Key Laboratory of Biological Resources and Ecological Environment, 723001 Hanzhong, China
- Engineering Research Center of Quality Improvement and Safety Control of Qinba Special Meat Products, Universities of Shaanxi Province, 723001 Hanzhong, China
- QinLing-Bashan Mountains Bioresources Comprehensive Development C. I. C., Shaanxi University of Technology, 723001 Hanzhong, China
| | - Hongzhao Lu
- School of Biological Science and Engineering, Shaanxi University of Technology, 723001 Hanzhong, China
- Qinba State Key Laboratory of Biological Resources and Ecological Environment, 723001 Hanzhong, China
- Engineering Research Center of Quality Improvement and Safety Control of Qinba Special Meat Products, Universities of Shaanxi Province, 723001 Hanzhong, China
- QinLing-Bashan Mountains Bioresources Comprehensive Development C. I. C., Shaanxi University of Technology, 723001 Hanzhong, China
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Ataie Z, Horchler S, Jaberi A, Koduru SV, El-Mallah JC, Sun M, Kheirabadi S, Kedzierski A, Risbud A, Silva ARAE, Ravnic DJ, Sheikhi A. Accelerating Patterned Vascularization Using Granular Hydrogel Scaffolds and Surgical Micropuncture. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2307928. [PMID: 37824280 DOI: 10.1002/smll.202307928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Indexed: 10/14/2023]
Abstract
Bulk hydrogel scaffolds are common in reconstructive surgery. They allow for the staged repair of soft tissue loss by providing a base for revascularization. Unfortunately, they are limited by both slow and random vascularization, which may manifest as treatment failure or suboptimal repair. Rapidly inducing patterned vascularization within biomaterials has profound translational implications for current clinical treatment paradigms and the scaleup of regenerative engineering platforms. To address this long-standing challenge, a novel microsurgical approach and granular hydrogel scaffold (GHS) technology are co-developed to hasten and pattern microvascular network formation. In surgical micropuncture (MP), targeted recipient blood vessels are perforated using a microneedle to accelerate cell extravasation and angiogenic outgrowth. By combining MP with an adjacent GHS with precisely tailored void space architecture, microvascular pattern formation as assessed by density, diameter, length, and intercapillary distance is rapidly guided. This work opens new translational opportunities for microvascular engineering, advancing reconstructive surgery, and regenerative medicine.
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Affiliation(s)
- Zaman Ataie
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Summer Horchler
- Division of Plastic Surgery, Department of Surgery, Penn State Health Milton S. Hershey Medical Center, Hershey, PA, 17033, USA
| | - Arian Jaberi
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Srinivas V Koduru
- Division of Plastic Surgery, Department of Surgery, Penn State Health Milton S. Hershey Medical Center, Hershey, PA, 17033, USA
| | - Jessica C El-Mallah
- Division of Plastic Surgery, Department of Surgery, Penn State Health Milton S. Hershey Medical Center, Hershey, PA, 17033, USA
| | - Mingjie Sun
- Division of Plastic Surgery, Department of Surgery, Penn State Health Milton S. Hershey Medical Center, Hershey, PA, 17033, USA
| | - Sina Kheirabadi
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Alexander Kedzierski
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Aneesh Risbud
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | | | - Dino J Ravnic
- Division of Plastic Surgery, Department of Surgery, Penn State Health Milton S. Hershey Medical Center, Hershey, PA, 17033, USA
- Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Amir Sheikhi
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
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Qiao B, Wang J, Qiao L, Maleki A, Liang Y, Guo B. ROS-responsive hydrogels with spatiotemporally sequential delivery of antibacterial and anti-inflammatory drugs for the repair of MRSA-infected wounds. Regen Biomater 2023; 11:rbad110. [PMID: 38173767 PMCID: PMC10761208 DOI: 10.1093/rb/rbad110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 11/15/2023] [Accepted: 12/02/2023] [Indexed: 01/05/2024] Open
Abstract
For the treatment of MRSA-infected wounds, the spatiotemporally sequential delivery of antibacterial and anti-inflammatory drugs is a promising strategy. In this study, ROS-responsive HA-PBA/PVA (HPA) hydrogel was prepared by phenylborate ester bond cross-linking between hyaluronic acid-grafted 3-amino phenylboronic acid (HA-PBA) and polyvinyl alcohol (PVA) to achieve spatiotemporally controlled release of two kinds of drug to treat MRSA-infected wound. The hydrophilic antibiotic moxifloxacin (M) was directly loaded in the hydrogel. And hydrophobic curcumin (Cur) with anti-inflammatory function was first mixed with Pluronic F127 (PF) to form Cur-encapsulated PF micelles (Cur-PF), and then loaded into the HPA hydrogel. Due to the different hydrophilic and hydrophobic nature of moxifloxacin and Cur and their different existing forms in the HPA hydrogel, the final HPA/M&Cur-PF hydrogel can achieve different spatiotemporally sequential delivery of the two drugs. In addition, the swelling, degradation, self-healing, antibacterial, anti-inflammatory, antioxidant property, and biocompatibility of hydrogels were tested. Finally, in the MRSA-infected mouse skin wound, the hydrogel-treated group showed faster wound closure, less inflammation and more collagen deposition. Immunofluorescence experiments further confirmed that the hydrogel promoted better repair by reducing inflammation (TNF-α) and promoting vascular (VEGF) regeneration. In conclusion, this HPA/M&Cur-PF hydrogel that can spatiotemporally sequential deliver antibacterial and anti-inflammatory drugs showed great potential for the repair of MRSA-infected skin wounds.
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Affiliation(s)
- Bowen Qiao
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi’an Jiaotong University, Xi’an 710049, China
- State Key Laboratory for Mechanical Behavior of Materials, Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China
| | - Jiaxin Wang
- State Key Laboratory for Mechanical Behavior of Materials, Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China
| | - Lipeng Qiao
- State Key Laboratory for Mechanical Behavior of Materials, Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China
| | - Aziz Maleki
- Zanjan Pharmaceutical Nanotechnology Research Center (ZPNRC), Zanjan 45139-56184, Iran
| | - Yongping Liang
- State Key Laboratory for Mechanical Behavior of Materials, Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China
| | - Baolin Guo
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi’an Jiaotong University, Xi’an 710049, China
- State Key Laboratory for Mechanical Behavior of Materials, Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China
- Department of Orthopaedics, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, People’s Republic of China
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do Nascimento MF, de Oliveira CR, Cardoso JC, Bordignon NCT, Gondak R, Severino P, Souto EB, de Albuquerque Júnior RLC. UV-polymerizable methacrylated gelatin (GelMA)-based hydrogel containing tannic acids for wound healing. Drug Deliv Transl Res 2023; 13:3223-3238. [PMID: 37474880 PMCID: PMC10624738 DOI: 10.1007/s13346-023-01383-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/13/2023] [Indexed: 07/22/2023]
Abstract
Gelatin-based photopolymerizable methacrylate hydrogel (GelMA) is a promising biomaterial for in situ drug delivery, while aqueous extract of Punica granatum (AEPG) peel fruit rich in gallic acid and ellagic acid is used to improve wound healing. The aim of this study was to develop and analyze the healing properties of GelMA containing AEPG, gallic acid, or ellagic acid in a rodent model. GelMA hydrogels containing 5% AEPG (GelMA-PG), 1.6% gallic acid (GelMA-GA), or 2.1% ellagic acid (GelMA-EA) were produced and their mechanical properties, enzymatic degradation, and thermogravimetric profile determined. Wound closure rates, healing histological grading, and immunohistochemical counts of myofibroblasts were assessed over time. The swelling of hydrogels varied between 50 and 90%, and GelMA exhibited a higher swelling than the other groups. The GPG samples showed higher compression and Young's moduli than GelMA, GGA, and GAE. All samples degraded around 95% in 48 h. GPG and GGA significantly accelerated wound closure, improved collagenization, increased histological grading, and hastened myofibroblast differentiation in comparison to the control, GelMA, and GEA. GelMA containing AEPG (GPG) improved wound healing, and although gallic acid is the major responsible for such biological activity, a potential synergic effect played by other polyphenols present in the extract is evident.
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Affiliation(s)
| | - Clauberto R de Oliveira
- Biotechnological Postgraduate Program-RENORBIO, Federal University of Sergipe, São Cristóvão, Sergipe, 49100-000, Brazil
| | - Juliana C Cardoso
- Postgraduate Program in Health and Environment, Tiradentes University, Aracaju, Sergipe, 49032-490, Brazil
| | - Natalia C T Bordignon
- Department of Dentistry, Post-Graduating Program in Dentistry, Federal University of Santa Catarina, Florianópolis, 88040-370, Brazil
| | - Rogério Gondak
- Department of Dentistry, Post-Graduating Program in Dentistry, Federal University of Santa Catarina, Florianópolis, 88040-370, Brazil
- Department of Pathology, Health Sciences Center, Federal University of Santa Catarina, R. Delfino Conti, S/N, Florianópolis, Santa Catarina, 88040-370, Brazil
| | - Patrícia Severino
- Post-Graduating Program in Industrial Biotechnology, University of Tiradentes, Av. Murilo Dantas, 300, Aracaju, 49010-390, Brazil
| | - Eliana B Souto
- UCIBIO-Applied Molecular Biosciences Unit, MEDTECH, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, 4050-313, Porto, Portugal.
- Associate Laboratory i4HB, Department of Pharmaceutical Technology, Faculty of Pharmacy, Institute for Health and Bioeconomy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal.
| | - Ricardo L C de Albuquerque Júnior
- Department of Dentistry, Post-Graduating Program in Dentistry, Federal University of Santa Catarina, Florianópolis, 88040-370, Brazil.
- Department of Pathology, Health Sciences Center, Federal University of Santa Catarina, R. Delfino Conti, S/N, Florianópolis, Santa Catarina, 88040-370, Brazil.
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Bartoli A, Donadoni M, Quici M, Rizzi G, La Cava L, Foschi A, Calloni M, Casella F, Martini E, Taino A, Cogliati C, Gidaro A. Safety of mid-thigh exit site venous catheters in multidrug resistant colonized patients. J Vasc Access 2023:11297298231188150. [PMID: 37464763 DOI: 10.1177/11297298231188150] [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: 07/20/2023] Open
Abstract
INTRODUCTION Venous catheters inserted in superficial femoral vein and with mid-thigh exit site have emerged as a feasible and safe technique for central or peripheral tip's venous access, especially in agitated, delirious patients. The spread of multidrug-resistant bacterial (MDR) strains is an emerging clinical problem and more and more patients are being colonized by these types of bacteria. The aim of this study is to evaluate the incidence of central line associated bloodstream infections (CLABSI) or catheter related bloodstream infections (CRBSI) in mid-thigh catheters in patients with positive rectal swabs to evaluate the safety of this procedure and the real infection risk. METHODS In this retrospective observational study, we analyzed data on patients with mid-tight catheters inserted from May 2021 to November 2022. All surveillance rectal swabs were recorded. In addition, to collect data on CLABSI and CRBSI, the results of all blood and catheter tip cultures performed during the hospital stay were acquired. RESULTS Six hundred two patients were enrolled, 304 patients (50.5%) had a rectal swab; 128 (42.1%) swabs were positive for MDR. Nine CLABSI (only two in patients with a positive rectal swab) and three CRBSI were detected. No statistical difference in the absolute number of CLABSI and CRBSI and in the number of infections per 1000 catheter days emerged between the overall population and patients with positive rectal swabs (respectively p = 0.45 and p = 0.53). Similarly, no statistical difference in the number of CLABSI and CRBSI was found among patients with a negative swab and patients with a positive one (respectively p = 0.43 and p = 0.51). CONCLUSIONS According to our data, cannulation of the superficial femoral vein represents a safe location in patients with positive rectal swabs.
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Affiliation(s)
- Arianna Bartoli
- Department of Biomedical and Clinical Sciences "Luigi Sacco," University of Milan, Luigi Sacco Hospital, Milan, Lombardy, Italy
| | - Mattia Donadoni
- Department of Biomedical and Clinical Sciences "Luigi Sacco," University of Milan, Luigi Sacco Hospital, Milan, Lombardy, Italy
| | - Massimiliano Quici
- Department of Biomedical and Clinical Sciences "Luigi Sacco," University of Milan, Luigi Sacco Hospital, Milan, Lombardy, Italy
| | - Giulia Rizzi
- Department of Biomedical and Clinical Sciences "Luigi Sacco," University of Milan, Luigi Sacco Hospital, Milan, Lombardy, Italy
| | - Leyla La Cava
- Department of Biomedical and Clinical Sciences "Luigi Sacco," University of Milan, Luigi Sacco Hospital, Milan, Lombardy, Italy
| | - Antonella Foschi
- Department of Infectious Diseases, Luigi Sacco Hospital, Milan, Lombardy, Italy
| | - Maria Calloni
- Department of Biomedical and Clinical Sciences "Luigi Sacco," University of Milan, Luigi Sacco Hospital, Milan, Lombardy, Italy
| | - Francesco Casella
- Department of Biomedical and Clinical Sciences "Luigi Sacco," University of Milan, Luigi Sacco Hospital, Milan, Lombardy, Italy
| | - Elena Martini
- Department of Biomedical and Clinical Sciences "Luigi Sacco," University of Milan, Luigi Sacco Hospital, Milan, Lombardy, Italy
| | - Alba Taino
- Department of Biomedical and Clinical Sciences "Luigi Sacco," University of Milan, Luigi Sacco Hospital, Milan, Lombardy, Italy
| | - Chiara Cogliati
- Department of Biomedical and Clinical Sciences "Luigi Sacco," University of Milan, Luigi Sacco Hospital, Milan, Lombardy, Italy
| | - Antonio Gidaro
- Department of Biomedical and Clinical Sciences "Luigi Sacco," University of Milan, Luigi Sacco Hospital, Milan, Lombardy, Italy
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Wang H, Wang H, Wang K, Xiong J, Huang S, Wolfson JM, Koutrakis P. Characterization of chemical transport in human skin and building material. JOURNAL OF HAZARDOUS MATERIALS 2023; 458:131917. [PMID: 37379590 DOI: 10.1016/j.jhazmat.2023.131917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 06/09/2023] [Accepted: 06/21/2023] [Indexed: 06/30/2023]
Abstract
Volatile organic compounds (VOCs) and semi-volatile organic compounds (SVOCs) are ubiquitous in indoor environment. They can emit from source into air, and subsequently penetrate human skin into blood through dermal uptake, causing adverse health effects. This study develops a two-layer analytical model to characterize the VOC/SVOC dermal uptake process, which is then extended to predict VOC emissions from two-layer building materials or furniture. Based on the model, the key transport parameters of chemicals in every skin or material layer are determined via a hybrid optimization method using data from experiments and literature. The measured key parameters of SVOCs for dermal uptake are more accurate than those from previous studies using empirical correlations. Moreover, the association between the absorption amount of studied chemicals into blood and age is preliminarily investigated. Further exposure analysis reveals that the contribution of dermal uptake to the total exposure can be comparable with that of inhalation for the examined SVOCs. This study makes the first attempt to accurately determine the key parameters of chemicals in skin, which is demonstrated to be critical for health risk assessment.
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Affiliation(s)
- Hao Wang
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Haimei Wang
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Keliang Wang
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Jianyin Xiong
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China.
| | - Shaodan Huang
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing 100191, China; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston 02115, United States.
| | - Jack M Wolfson
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston 02115, United States
| | - Petros Koutrakis
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston 02115, United States
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Yin Y, Xu Q, Wei X, Ma Q, Li D, Zhao J. Rosmarinic Acid-Grafted Dextran/Gelatin Hydrogel as a Wound Dressing with Improved Properties: Strong Tissue Adhesion, Antibacterial, Antioxidant and Anti-Inflammatory. Molecules 2023; 28:molecules28104034. [PMID: 37241772 DOI: 10.3390/molecules28104034] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 04/25/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
Designing a strong tissue adhesive and multifunctional hydrogel dressing for various skin injuries is still a significant challenge. Based on the bioactive activities of rosmarinic acid (RA) and its catechol structure being similar to dopamine, RA-grafted dextran/gelatin hydrogel (ODex-AG-RA) was designed and systemically characterized in this study. The ODex-AG-RA hydrogel exhibited excellent physicochemical properties, including fast gelation time (61.6 ± 2.8 s), strong adhesive strength (27.30 ± 2.02 kPa) and enhanced mechanical properties (1.31 × 104 Pa of G'). The examination of hemolysis and co-culturing with L929 cells showed the strong in vitro biocompatibility of ODex-AG-RA hydrogels. The ODex-AG-RA hydrogels exhibited a 100% mortality rate against S. aureus and at least 89.7% against E. coli in vitro. In vivo evaluation for efficacy in skin wound healing was carried out in a rat model of full-thickness skindefect. The amount of collagen deposition and CD31 on wounds in the two ODex-AG-RA-1 groups on day 14 was 4.3 times and 2.3 times of that in the control group, respectively. Furthermore, the mechanism of ODex-AG-RA-1 for promoting wound healing was proved to be related to its anti-inflammatory properties by adjusting the expression of inflammatory cytokines (TNF-α and CD163) and reducing the level of oxidative stress (MDA and H2O2). Overall, this study demonstrated the wound-healing efficacy of RA-grafted hydrogels for the first time. ODex-AG-RA-1 hydrogel, due to its adhesive, anti-inflammatory, antibacterial and antioxidative activities, was a promising candidate as a wound dressing.
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Affiliation(s)
- Yi Yin
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China
| | - Qianqian Xu
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China
| | - Xin Wei
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China
| | - Qianyun Ma
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China
| | - Dongsheng Li
- Tianjin Key Laboratory of Innovative Ophthalmic Optics Technology, Tianjin Shiji Kangtai Biomedical Engineering Co., Ltd., Tianjin 300462, China
| | - Juanjuan Zhao
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China
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Belvedere R, Novizio N, Eletto D, Porta A, Di Maio U, Petrella A. The Protecting Activity of RIPACUT ®: A New Therapeutic Approach Preserving Epithelial Health Based on the Combination of Iceland Lichen Extract, Silver Salt, and Sodium Hyaluronate. Life (Basel) 2023; 13:life13051088. [PMID: 37240732 DOI: 10.3390/life13051088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/14/2023] [Accepted: 04/24/2023] [Indexed: 05/28/2023] Open
Abstract
Epithelial integrity and function must be maintained in a dynamic healthy equilibrium, keeping unaltered the oxidative and inflammatory conditions and the microbiome of the cutaneous layers. Beside the skin, other mucous membranes can be injured, such as the nasal and anal ones, because of the contact with the external environment. Here, we detected the effects of RIPACUT®, a combination of Iceland lichen extract, silver salt and sodium hyaluronate that individually act in diverse biological ways. The findings we obtained on keratinocytes, nasal and intestinal epithelial cells reveal that this combination showed a marked antioxidant activity, further assessed by the DPPH assay. Additionally, by analyzing the release of the IL-1β, TNF-α and IL-6 cytokines, we proved the anti-inflammatory effect of RIPACUT®. In both cases, the main preserving action was due to Iceland lichen. We also observed a notable antimicrobial activity mediated by the silver compound. These data suggest that RIPACUT® could signify the basis for an attractive pharmacological approach to maintaining healthy epithelial conditions. Interestingly, this may be extended to the nasal and anal areas where it protects against oxidative, inflammatory and infectious insults. Thus, these outcomes encourage the creation of sprays or creams for which sodium hyaluronate can guarantee a surface film-forming effect.
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Affiliation(s)
- Raffaella Belvedere
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Nunzia Novizio
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Daniela Eletto
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Amalia Porta
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Umberto Di Maio
- Shedir Pharma Group Spa, Via Bagnulo 95, 80063 Piano di Sorrento, Italy
| | - Antonello Petrella
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy
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9
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Bruschi ML, de Souza Nunes GC. Magnetic Gels in Skin Cancer Treatment: A Review of Potential Applications in Diagnostics, Drug Delivery and Hyperthermia. Pharmaceutics 2023; 15:pharmaceutics15041244. [PMID: 37111728 PMCID: PMC10143045 DOI: 10.3390/pharmaceutics15041244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/06/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
Skin cancer (SC) is affecting an increasing number of people worldwide. Its lesions affect mainly the most exposed regions of the skin. SC is classified into to main categories: non-melanoma (basal cell carcinoma of the epidermis and squamous cell carcinoma) and melanoma (the abnormal proliferation of melanocytes, which is rarer, more hazardous, and more deadly). Prevention and early diagnosis are important actions, and surgery is often considered. After the removal of cancerous lesions, the local administration of medicine can guarantee anticancer therapeutic action, rapid healing and the recovery of tissue, ensuring the absence of recurrence. Magnetic gels (MGs) have attracted increased attention regarding their pharmaceutical and biomedical applications. They are magnetic nanoparticles (e.g., iron oxide nanoparticles) dispersed in a polymeric matrix, which constitute adaptive systems under a magnetic field. MGs can combine magnetic susceptibility, high elasticity, and softness, and are thus useful platforms for diagnostics, drug delivery, and also for hyperthermia. This manuscript reviews MGs as a technological strategy for the treatment of SC. An overview of SC and the treatment, types, and methods of preparing MGs are discussed. Moreover, the applications of MGs in SC and their future perspectives are considered. The combination of polymeric gels and magnetic nanoparticles continues to be investigated, and new products must hit the market. Clinical trials and new products are expected, due to the important advantages of MGs.
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Affiliation(s)
- Marcos Luciano Bruschi
- Laboratory of Research and Development of Drug Delivery Systems, Postgraduate Program in Pharmaceutical Sciences, Department of Pharmacy, State University of Maringa, Av. Colombo 5790, Maringa 87020-900, PR, Brazil
| | - Glécilla Colombelli de Souza Nunes
- Laboratory of Research and Development of Drug Delivery Systems, Postgraduate Program in Pharmaceutical Sciences, Department of Pharmacy, State University of Maringa, Av. Colombo 5790, Maringa 87020-900, PR, Brazil
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10
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Xia H, Hu Q, Yang Y, Yuan H, Cai Y, Liu Z, Xu Z, Xiong Y, Zhou J, Ye Q, Zhong Z. Effect of Matrix Metalloproteinase 23 Accelerating Wound Healing Induced by Hydroxybutyl Chitosan. ACS APPLIED BIO MATERIALS 2023; 6:1460-1470. [PMID: 36921248 DOI: 10.1021/acsabm.2c01008] [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: 03/17/2023]
Abstract
Skin wounds may cause severe financial and social burden due to the difficulties in wound healing. Original inert dressings cannot meet multiple needs in the process of wound healing. Therefore, the development of materials to accelerate healing progress is essential and urgent. In the previous study, we found that the homogeneously synthesized hydroxybutyl chitosan (HBCS) had an effective performance in promoting wound healing. Proteomic analysis of the same specimen suggested that matrix metalloproteinase 23 (MMP23) may play a key role in HBCS expediting the progress of wound healing. In this work, we aim to reveal the underlying mechanism of MMP23 in the dynamic process of cutaneous proliferation and repair period. In order to regulate the expression level of MMP23 in the local wound area, we leaded in adeno-associated virus (AAV) to specifically decreased expression quantity of MMP23 in rat skin. In contrast to the negative control groups, we found that the wound closed faster and the collagen fibers and neovascularization were significantly increased in AAV groups. These findings highlighted that MMP23 was involved in wound healing after traumatic injury, and managing the expression of MMP23 could be a potential intervention target to accelerate wound healing.
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Affiliation(s)
- Haoyang Xia
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, Hubei Key Laboratory of Medical Technology on Transplantation, Engineering Research Center of Natural Polymer-based Medical Materials in Hubei Province, Wuhan 430071, China
| | - Qianchao Hu
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, Hubei Key Laboratory of Medical Technology on Transplantation, Engineering Research Center of Natural Polymer-based Medical Materials in Hubei Province, Wuhan 430071, China
| | - Yi Yang
- College of Health Science, Wuhan Sports University, Wuhan 430079, China
| | - Haoran Yuan
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, Hubei Key Laboratory of Medical Technology on Transplantation, Engineering Research Center of Natural Polymer-based Medical Materials in Hubei Province, Wuhan 430071, China
| | - Yan Cai
- Department of Chemistry, Hubei Engineering Center of Natural Polymers-based Medical Materials, Key Laboratory of Biomedical Polymers of Ministry of Education, Wuhan University, Wuhan 430072, China
| | - Zhongzhong Liu
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, Hubei Key Laboratory of Medical Technology on Transplantation, Engineering Research Center of Natural Polymer-based Medical Materials in Hubei Province, Wuhan 430071, China
| | - Zhigao Xu
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, Hubei Key Laboratory of Medical Technology on Transplantation, Engineering Research Center of Natural Polymer-based Medical Materials in Hubei Province, Wuhan 430071, China
| | - Yan Xiong
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, Hubei Key Laboratory of Medical Technology on Transplantation, Engineering Research Center of Natural Polymer-based Medical Materials in Hubei Province, Wuhan 430071, China
| | - Jinping Zhou
- Department of Chemistry, Hubei Engineering Center of Natural Polymers-based Medical Materials, Key Laboratory of Biomedical Polymers of Ministry of Education, Wuhan University, Wuhan 430072, China
| | - Qifa Ye
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, Hubei Key Laboratory of Medical Technology on Transplantation, Engineering Research Center of Natural Polymer-based Medical Materials in Hubei Province, Wuhan 430071, China.,Transplantation Medicine Engineering and Technology Research Center, National Health Commission, The 3rd Xiangya Hospital of Central South University, Changsha 410013, China
| | - Zibiao Zhong
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, Hubei Key Laboratory of Medical Technology on Transplantation, Engineering Research Center of Natural Polymer-based Medical Materials in Hubei Province, Wuhan 430071, China
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11
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Lai F, Dai S, Zhao Y, Sun Y. Combination of PDGF-BB and adipose-derived stem cells accelerated wound healing through modulating PTEN/AKT pathway. Injury 2023:S0020-1383(23)00123-7. [PMID: 37028952 DOI: 10.1016/j.injury.2023.02.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 02/01/2023] [Accepted: 02/10/2023] [Indexed: 04/09/2023]
Abstract
Adipose-derived stem cells (ADSCs) have been widely proven to facilitate wound healing. Our study aimed to estimate the influence of combined ADSCs and platelet-derived growth factor-BB (PDGF-BB) on wound healing. We utilized 4 healthy SD rats to isolate ADSCs. Platelet-rich plasma (PRP) was acquired utilizing a two-step centrifugation technology. The role of PRP, PDGF-BB, and PDGF-BB combined with a PI3k inhibitor LY294002 on the viability, migration, and PTEN/AKT pathway in ADSCs were examined utilizing CCK-8, Transwell, and western blot assays. Then, we constructed an open trauma model in SD rats. Effects of ADSCs treated with PDGF-BB on pathological changes, CD31, and PTEN/AKT pathway of wound closure were assessed by hematoxylin & eosin (H&E) staining, Masson staining, immunohistochemical, and western blot assays, respectively. PRP and PDGF-BB intensified the viability and migration of ADSCs by modulating the PTEN/AKT pathway. Interestingly, LY294002 reversed the role of PDGF-BB on ADSCs. In vivo experiments, combined intervention with ADSCs plus PDGF-BB/PRP facilitated wound closure and ameliorated histological injury. Moreover, combined intervention with ADSCs and PDGF-BB attenuated the PTEN level and elevated the CD31 level as well as the ratio of p-AKT/AKT in the skin tissues. A combination of ADSCs and PDGF-BB facilitated wound healing might associate with the regulation of the PTEN/AKT pathway.
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Affiliation(s)
- Fangyuan Lai
- Center for Plastic & Reconstructive Surgery, Department of Plastic & Reconstructive Surgery, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China
| | - Shijie Dai
- College of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Ye Zhao
- Center for Plastic & Reconstructive Surgery, Department of Plastic & Reconstructive Surgery, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China
| | - Yi Sun
- Center for Plastic & Reconstructive Surgery, Department of Plastic & Reconstructive Surgery, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China.
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12
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Souto EPF, Oliveira AM, Hoffmann AR, Mota RA, Galiza GJN, Dantas AFM. Cutaneous phaeohyphomycosis in a greater bulldog bat (Noctilio leporinus) in northeastern Brazil. J Comp Pathol 2023; 201:37-40. [PMID: 36701871 DOI: 10.1016/j.jcpa.2022.12.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 11/11/2022] [Accepted: 12/29/2022] [Indexed: 01/26/2023]
Abstract
An adult male greater bulldog bat (Noctilio leporinus) was found dead in a suburban area in the municipality of Patos, Paraiba, northeastern Brazil. At post-mortem examination, the bat was emaciated and had multifocal to coalescent grey, crusted, dry, scaly cutaneous lesions, irregularly distributed over the dorsal thoracoabdominal region, muzzle, labial commissures, ears and dorsoventral surfaces of the patagia. Histopathology revealed numerous longitudinal and transverse sections of fungal organisms, with weakly basophilic walls, associated with multifocal areas of ulceration of the epidermis, necrosis, rupture and discontinuity of collagen fibres in the dermis without any inflammatory response. Molecular identification matched the organism to Cladosporium spp, Curvularia spp, Exserohilum spp, Bipolaris spp (100%) and Alternaria spp (97%), all of which have been associated with phaeohyphomycosis. Phaeohyphomycosis should be included as a differential diagnosis of cutaneous lesions in chiropterans.
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Affiliation(s)
- E P F Souto
- Laboratory of Animal Pathology, Federal University of Campina Grande, Patos, Paraiba, Brazil.
| | - A M Oliveira
- Laboratory of Animal Pathology, Federal University of Campina Grande, Patos, Paraiba, Brazil
| | - A R Hoffmann
- Department of Veterinary Pathobiology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - R A Mota
- Laboratory of Infectious Diseases, Department of Veterinary Medicine, Federal Rural University of Pernambuco, Recife, Pernambuco, Brazil
| | - G J N Galiza
- Laboratory of Animal Pathology, Federal University of Campina Grande, Patos, Paraiba, Brazil
| | - A F M Dantas
- Laboratory of Animal Pathology, Federal University of Campina Grande, Patos, Paraiba, Brazil
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13
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Vathulya M, Chattopadhyay D, Kandwal P, Nath UK, Kapoor A, Sinha M. Adipose Tissue in Peripheral Obesity as an Assessment Factor for Pressure Ulcers. Adv Wound Care (New Rochelle) 2022. [PMID: 36301930 DOI: 10.1089/wound.2020.1275] [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: 12/29/2022] Open
Abstract
Scope and Significance: Pressure ulcers are very difficult to treat and pose an economic burden, just below cancer and cardiovascular illness, at 4.82 billion U.S. dollars. It is important to understand the pathophysiology of the condition, risk stratification, and ways of preventing it. Prevention forms the most important aspect of their management. The authors systematically evaluated the existing risk prediction scales and explored the evidence from literature regarding the role of additional factors including body mass index, obesity, subcutaneous tissue thickness, and skin integrity in pressure ulcers. With this review it is hoped that the future management of pressure ulcers will concentrate on the preventable and alterable factors in its pathophysiology. Translational Relevance: The review focuses on how adipose tissue thickness can predict the occurrence of pressure ulcer. If adequately proved that a definite thickness of peripheral adipose tissue is efficient in prevention of pressure ulcers, then methods of maintaining the thickness of this tissue will be the next effective strategy in the management of this chronic issue. Clinical Relevance: The review addresses the management of pressure ulcers to wound care providers and emphasize on confounding parameters of obesity, subcutaneous tissue thickness, and skin integrity during the treatment regimen of pressure ulcers. Objectives: The main objective of this review is to draw a consensus concerning the role of adipose tissue in pressure ulcers, based on the published research. A review of the various preexisting predictive scales for pressure ulcers is a secondary objective to highlight the shortcomings in ulcer management. This review finally aims in the future at paving a way to refine our prognosticating scales for pressure sores based on these results. Accurate preventative injury risk scales are needed so that preventative resources can be directed to the patients for whom they are the most appropriate.
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Affiliation(s)
- Madhubari Vathulya
- Department of Burns and Plastic Surgery, All India Institute of Medical Sciences, Rishikesh (AIIMS Rishikesh), Rishikesh, India
| | - Debarati Chattopadhyay
- Department of Burns and Plastic Surgery, All India Institute of Medical Sciences, Rishikesh (AIIMS Rishikesh), Rishikesh, India
| | - Pankaj Kandwal
- Department of Orthopedics, All India Institute of Medical Sciences, Rishikesh (AIIMS Rishikesh), Rishikesh, India
| | - Uttam Kumar Nath
- Department of Medical Oncology & Hematology, All India Institute of Medical Sciences, Rishikesh (AIIMS Rishikesh), Rishikesh, India
| | - Akshay Kapoor
- Department of Burns and Plastic Surgery, All India Institute of Medical Sciences, Rishikesh (AIIMS Rishikesh), Rishikesh, India
| | - Mithun Sinha
- Department of Surgery, IU Heath Comprehensive Wound Center, Indiana Center for Regenerative Medicine and Engineering, Indiana University School of Medicine, Indianapolis, Indiana, USA
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14
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Mazurek Ł, Szudzik M, Rybka M, Konop M. Silk Fibroin Biomaterials and Their Beneficial Role in Skin Wound Healing. Biomolecules 2022; 12:biom12121852. [PMID: 36551280 PMCID: PMC9775069 DOI: 10.3390/biom12121852] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/06/2022] [Accepted: 12/08/2022] [Indexed: 12/14/2022] Open
Abstract
The skin, acting as the outer protection of the human body, is most vulnerable to injury. Wound healing can often be impaired, leading to chronic, hard-to-heal wounds. For this reason, searching for the most effective dressings that can significantly enhance the wound healing process is necessary. In this regard, silk fibroin, a protein derived from silk fibres that has excellent properties, is noteworthy. Silk fibroin is highly biocompatible and biodegradable. It can easily make various dressings, which can be loaded with additional substances to improve healing. Dressings based on silk fibroin have anti-inflammatory, pro-angiogenic properties and significantly accelerate skin wound healing, even compared to commercially available wound dressings. Animal studies confirm the beneficial influence of silk fibroin in wound healing. Clinical research focusing on fibroin dressings is also promising. These properties make silk fibroin a remarkable natural material for creating innovative, simple, and effective dressings for skin wound healing. In this review, we summarise the application of silk fibroin biomaterials as wound dressings in full-thickness, burn, and diabetic wounds in preclinical and clinical settings.
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15
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Grady EM, Ozyurekoglu T. Unique Variation of Barber's Disease: A Case Report. Plast Reconstr Surg Glob Open 2022; 10:e4513. [PMID: 36128433 PMCID: PMC9481439 DOI: 10.1097/gox.0000000000004513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 07/12/2022] [Indexed: 11/25/2022]
Abstract
Barber's disease is an occupational-related disease in which small hair fragments penetrate the dermis of the hand. Although there is limited literature related to the topic, barber's disease classically involves the interdigital space of hairdressers' hands. In this case report, we report an undescribed variation of the condition. The case involves a female hair stylist who presented to the office with numerous hair splinters under the nail plate of her dominant thumb. Subsequent evaluation revealed cystic destruction of the distal phalanx of the thumb. Despite preoperative suspicion for osteomyelitis, pathology revealed reactive bone fragments associated with surrounding tenosynovial tissue and no evidence of osteomyelitis. The proposed etiology of this finding is the inflammatory process related to a hair abscess that formed with a sinus originating in the lateral nail fold. The goal of the case report is to bring to light yet another variation of barber's disease.
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Affiliation(s)
- Edmund Michael Grady
- Christine M. Kleinert Institute for Hand and Microsurgery, Kleinert Kutz Hand Care Center, University of Louisville Department of Surgery, Louisville, Ky
| | - Tuna Ozyurekoglu
- Christine M. Kleinert Institute for Hand and Microsurgery, Kleinert Kutz Hand Care Center, University of Louisville Department of Surgery, Louisville, Ky
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16
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Subramaniam T, Shaiful Hadi N, Sulaiman S, Fauzi MB, Hj Idrus RB, Chowdhury SR, Law JX, Maarof M. Comparison of three different skin substitutes in promoting wound healing in an ovine model. Burns 2022; 48:1198-1208. [PMID: 34893370 DOI: 10.1016/j.burns.2021.08.012] [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] [Received: 04/19/2021] [Revised: 07/23/2021] [Accepted: 08/16/2021] [Indexed: 12/15/2022]
Abstract
Skin substitutes are designed dressings intended to promote wound closure. In previous in vitro and in vivo studies on small animal, an acellular skin patch made of collagen hydrogel with dermal fibroblast conditioned medium (Col-DFCM), a collagen sponge scaffold with freshly harvested skin cells (OTC), and a platelet-rich-plasma gel with freshly harvested skin cells (PRP) have been developed and tested for immediate treatment of full-thickness wound. However, to determine the safety and efficacy of these skin patches for clinical applications, further study in a large animal model is needed. The aim of this study is to evaluate the potential of Col-DFCM, OTC and PRP in treating full-thickness wound in an ovine model via histological analysis and immunohistochemistry staining were performed, with the untreated (NT) group serving as the control. Gross examination was conducted on day 7, 14 and 21 to determine the wound closure rate. The findings of percentage of wound size reduction showed that the wound healed fastest in the presence of Col-DFCM (91.34 ± 23.35%) followed by OTC (84.49 ± 23.13%), PRP (77.73 ± 20.9%) and NT group (73.94 ± 23.71%). Histological evaluation with Hematoxylin & Eosin (H & E) and Masson's trichrome staining was used to study the structure of the wound area. The results showed that OTC treated wound was more mature as indicated by the presence of a thinner epidermis followed by the Col-DFCM, PRP and NT group. Immunohistochemistry analysis also confirmed the integrity and maturity of the regenerated skin, with positive expression of cytokeratin 10 (CK10) and involucrin in the epidermal layer. In conclusion, Col-DFCM, OTC and PRP treatments promote healing of full-thickness wound and have the potential to be used clinically for rapid treatment of full-thickness wound.
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Affiliation(s)
- Thayaalini Subramaniam
- Center for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras 56000, Kuala Lumpur, Malaysia
| | - Nursharafana Shaiful Hadi
- Center for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras 56000, Kuala Lumpur, Malaysia
| | - Shamsul Sulaiman
- Center for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras 56000, Kuala Lumpur, Malaysia
| | - Mh Busra Fauzi
- Center for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras 56000, Kuala Lumpur, Malaysia
| | - Ruszymah Bt Hj Idrus
- Center for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras 56000, Kuala Lumpur, Malaysia; Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras 56000, Kuala Lumpur, Malaysia
| | - Shiplu Roy Chowdhury
- Center for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras 56000, Kuala Lumpur, Malaysia
| | - Jia Xian Law
- Center for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras 56000, Kuala Lumpur, Malaysia
| | - Manira Maarof
- Center for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras 56000, Kuala Lumpur, Malaysia.
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17
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Chen G, Zhou Y, Dai J, Yan S, Miao W, Ren L. Calcium alginate/PNIPAAm hydrogel with body temperature response and great biocompatibility: Application as burn wound dressing. Int J Biol Macromol 2022; 216:686-697. [PMID: 35817237 DOI: 10.1016/j.ijbiomac.2022.07.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 06/16/2022] [Accepted: 07/03/2022] [Indexed: 11/05/2022]
Abstract
Deep burns often do not heal easily, because the dermis of the skin is severely damaged, leading to severe inflammation and bacterial infection. Therefore, it is of great clinical significance to develop a dressing that promotes the healing process of deep burn wound. In this study, we used N-isopropyl acrylamide, sodium alginate and calcium chloride as the main materials, a series of calcium alginate/ poly (N-isopropyl acrylamide)(NIPAAm) hydrogel (CAPH) with different component ratios were synthesized. Its swelling properties, temperature response properties, rheological properties, biocompatibility properties, and in vitro drug release properties were investigated. Based on the above conditions, the CAPH(sodium alginate:NIPAAm = 2:15) with the best comprehensive performance was selected, which has a good biocompatibility. In addition, 0.02 % (w/v) mupirocin was loaded in CAPH. The temperature-responsive property of PNIPAAm in CAPH at 34 °C not only allowed the CAPH to rapidly release the drug under to prevent infection, but also to assist in wound contraction. Application of CAPH to localized wounds of deep second-degree burns in mice showed a faster healing rate and tissue regeneration. At the same time, collagen recovery was enhanced, collagen bundles were arranged in an orderly manner, and the scarring was not obvious after 16 days. Therefore, this research prepared a new safe and effective biomaterial.
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Affiliation(s)
- Guoguang Chen
- School of pharmacy, Nanjing Tech University, 30th South Puzhu Road, Nanjing 211816, China
| | - Yaxin Zhou
- School of pharmacy, Nanjing Tech University, 30th South Puzhu Road, Nanjing 211816, China
| | - Jie Dai
- School of pharmacy, Nanjing Tech University, 30th South Puzhu Road, Nanjing 211816, China
| | - Shiyu Yan
- School of pharmacy, Nanjing Tech University, 30th South Puzhu Road, Nanjing 211816, China
| | - Wenjun Miao
- School of pharmacy, Nanjing Tech University, 30th South Puzhu Road, Nanjing 211816, China
| | - Lili Ren
- School of pharmacy, Nanjing Tech University, 30th South Puzhu Road, Nanjing 211816, China.
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18
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Affiliation(s)
- Jeffrey M Levine
- Jeffrey M. Levine, MD, AGSF, CMD, CWS-P, is a wound consultant for the New Jewish Home in Manhattan and Advantage Surgical and Wound Care based in El Segundo, California; and Associate Clinical Professor of Geriatrics and Palliative Care, Mount Sinai Beth Israel Medical Center, New York, New York. Barbara Delmore, PhD, RN, CWCN, MAPWCA, IIWCC-NYU, FAAN, is Senior Nurse Scientist, Center for Innovations in the Advancement of Care (CIAC) and Clinical Assistant Professor, Hansjörg Wyss, Department of Plastic Surgery, NYU Langone Health, New York, New York. Jill Cox, PhD, RN, APN-c, CWOCN, FAAN, is Clinical Associate Professor, School of Nursing, Rutgers University, Newark, New Jersey, and Wound/Ostomy/Continence Advanced Practice Nurse, Englewood Hospital and Medical Center, Englewood, New Jersey. Submitted July 9, 2021; accepted in revised form October 8, 2021; published online ahead of print November 1, 2021
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19
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Nanodelivery Strategies for Skin Diseases with Barrier Impairment: Focusing on Ceramides and Glucocorticoids. NANOMATERIALS 2022; 12:nano12020275. [PMID: 35055292 PMCID: PMC8779445 DOI: 10.3390/nano12020275] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/10/2022] [Accepted: 01/13/2022] [Indexed: 02/04/2023]
Abstract
The human epidermis has a characteristic lipidic composition in the stratum corneum, where ceramides play a crucial role in the skin barrier homeostasis and in water-holding capacity. Several skin diseases, such as atopic dermatitis and psoriasis, exhibit a dysfunction in the lipid barrier with altered ceramide levels and increased loss of transepidermal water. Glucocorticoids are normally employed in the therapeutical management of these pathologies. However, they have shown a poor safety profile and reduced treatment efficiency. The main objective of this review is to, within the framework of the limitations of the currently available therapeutical approaches, establish the relevance of nanocarriers as a safe and efficient delivery strategy for glucocorticoids and ceramides in the topical treatment of skin disorders with barrier impairment.
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20
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Bekiaridou A, Karlafti E, Oikonomou IM, Ioannidis A, Papavramidis TS. Probiotics and Their Effect on Surgical Wound Healing: A Systematic Review and New Insights into the Role of Nanotechnology. Nutrients 2021; 13:nu13124265. [PMID: 34959817 PMCID: PMC8704946 DOI: 10.3390/nu13124265] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 11/21/2021] [Accepted: 11/26/2021] [Indexed: 11/17/2022] Open
Abstract
Skin tissue repair is of fundamental importance for maintaining homeostasis regulation, protection barrier, absorption, and excretion of skin tissue. Wound healing is a complicated process that can be impaired by infections and therefore have a significant economic and social impact. Simultaneously, the overuse of antibiotics has led to antimicrobial resistance and loss of their efficacy. Thus, the need for alternative antimicrobial agents is urgent. The newest approaches on wound dressings employ new therapeutic agents, such as probiotics. Probiotics alone or in tandem with nanotechnology-based techniques exhibit a broad range of benefits on surgical wounds. This systematic review aims to consider current knowledge of probiotic effects on animals and humans regarding surgical wound healing and provide new insights into the role of nanotechnology. The databases included were PubMed (MEDLINE), Scopus, and Cochrane Library (CENTRAL). Studies focused on burns, chronic wounds, and diabetic ulcers were excluded. The promising industry of probiotics demonstrates a significant upsurge as more and more healthy individuals rely their well-being on alternative medicine. Included probiotics illustrated positive results on wound re-epithelization, neovascularization, and wound healing. No adverse effects were noted.
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Affiliation(s)
- Alexandra Bekiaridou
- 1st Propaedeutic Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, AHEPA Hospital, 54636 Thessaloniki, Greece; (A.B.); (E.K.); (I.M.O.)
| | - Eleni Karlafti
- 1st Propaedeutic Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, AHEPA Hospital, 54636 Thessaloniki, Greece; (A.B.); (E.K.); (I.M.O.)
| | - Ilias Marios Oikonomou
- 1st Propaedeutic Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, AHEPA Hospital, 54636 Thessaloniki, Greece; (A.B.); (E.K.); (I.M.O.)
| | - Aristidis Ioannidis
- 1st Propaedeutic Surgical Department, University Hospital of Thessaloniki AHEPA, Aristotle University of Thessaloniki (AUTH), 54621 Thessaloniki, Greece;
| | - Theodossis S. Papavramidis
- 1st Propaedeutic Surgical Department, University Hospital of Thessaloniki AHEPA, Aristotle University of Thessaloniki (AUTH), 54621 Thessaloniki, Greece;
- Correspondence: ; Fax: +30-231-042-0293
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21
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Sianes-Gallén M, Pujol-García AM, Rus García M, Partera Luque C, López Postigo M, Call Mañosa S, Camposo Montesino MC, Ibáñez Touriño B, Ribas Obon E, Segura Rodríguez T, Cores Fuentes P, Tamame Sanantonio M, Jornet-Gibert M. Pressure injuries during the SARS-CoV-2 pandemic: A retrospective, case-control study. J Tissue Viability 2021; 30:478-483. [PMID: 34389188 PMCID: PMC8328527 DOI: 10.1016/j.jtv.2021.07.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 07/22/2021] [Accepted: 07/31/2021] [Indexed: 01/21/2023]
Abstract
AIM OF STUDY The main objective of this study was to ascertain whether severe alterations in hypoxemic, inflammatory, and nutritional parameters in patients diagnosed with SARS-CoV-2 infection were associated with the occurrence and severity of developed dependency-related injuries. The secondary objective was to determine whether there were prognostic factors associated with the occurrence and severity of developed dependency-related injuries during the SARS-CoV-2 pandemic. MATERIAL AND METHODS A retrospective, single-centre, case-control study was conducted to compare SARS-CoV-2 patients who developed dependency-related injuries after the first 48 h after admission with a control group made up of SARS-CoV-2 patients without dependency-related injuries. The cases of the 1987 patients diagnosed with SARS-CoV-2 infection during the study period were reviewed. Data from 94 patients who developed dependency-related injuries and from 190 patients who did not develop them during hospital admission were analysed. RESULTS High baseline dependency levels, prolonged hospital stays, and low oxygen saturation levels on arrival in emergency department triage were associated with the occurrence of dependency-related injuries among patients diagnosed with SARS-CoV-2 infection. CONCLUSIONS SARS-CoV-2 infection can lead to complications such as dependency-related injuries. Although there are several non-modifiable variables associated with the occurrence of dependency-related injuries in these patients, it is essential to conduct further research and introduce consensus guidelines to reduce their incidence and prevalence.
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Affiliation(s)
- Mònica Sianes-Gallén
- Nurses Unit, Parc Taulí Hospital Universitari, Institut D'Investigació I Innovació Parc Taulí I3PT, Universitat Autònoma de Barcelona, Sabadell, Spain.
| | - Anna María Pujol-García
- Nurses Unit, Parc Taulí Hospital Universitari, Institut D'Investigació I Innovació Parc Taulí I3PT, Universitat Autònoma de Barcelona, Sabadell, Spain.
| | - Montserrat Rus García
- Nurses Unit, Parc Taulí Hospital Universitari, Institut D'Investigació I Innovació Parc Taulí I3PT, Universitat Autònoma de Barcelona, Sabadell, Spain.
| | - Carmen Partera Luque
- Nurses Unit, Parc Taulí Hospital Universitari, Institut D'Investigació I Innovació Parc Taulí I3PT, Universitat Autònoma de Barcelona, Sabadell, Spain.
| | - Montserrat López Postigo
- Nurses Unit, Parc Taulí Hospital Universitari, Institut D'Investigació I Innovació Parc Taulí I3PT, Universitat Autònoma de Barcelona, Sabadell, Spain.
| | - Silvia Call Mañosa
- Nurses Unit, Parc Taulí Hospital Universitari, Institut D'Investigació I Innovació Parc Taulí I3PT, Universitat Autònoma de Barcelona, Sabadell, Spain.
| | - María Carmen Camposo Montesino
- Nurses Unit, Parc Taulí Hospital Universitari, Institut D'Investigació I Innovació Parc Taulí I3PT, Universitat Autònoma de Barcelona, Sabadell, Spain.
| | - Belén Ibáñez Touriño
- Nurses Unit, Parc Taulí Hospital Universitari, Institut D'Investigació I Innovació Parc Taulí I3PT, Universitat Autònoma de Barcelona, Sabadell, Spain.
| | - Eulalia Ribas Obon
- Nurses Unit, Parc Taulí Hospital Universitari, Institut D'Investigació I Innovació Parc Taulí I3PT, Universitat Autònoma de Barcelona, Sabadell, Spain.
| | - Tania Segura Rodríguez
- Nurses Unit, Parc Taulí Hospital Universitari, Institut D'Investigació I Innovació Parc Taulí I3PT, Universitat Autònoma de Barcelona, Sabadell, Spain.
| | - Pilar Cores Fuentes
- Nurses Unit, Parc Taulí Hospital Universitari, Institut D'Investigació I Innovació Parc Taulí I3PT, Universitat Autònoma de Barcelona, Sabadell, Spain.
| | - Marta Tamame Sanantonio
- Nurses Unit, Parc Taulí Hospital Universitari, Institut D'Investigació I Innovació Parc Taulí I3PT, Universitat Autònoma de Barcelona, Sabadell, Spain.
| | - Montsant Jornet-Gibert
- Parc Taulí Hospital Universitari, Institut D'Investigació I Innovació Parc Taulí I3PT, Universitat Autònoma de Barcelona, Sabadell, Spain; Department of Clinical Psychology and Psychobiology, Faculty of Psychology, University of Barcelona, Barcelona, Spain.
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Riedl J, Popp C, Eide C, Ebens C, Tolar J. Mesenchymal stromal cells in wound healing applications: role of the secretome, targeted delivery and impact on recessive dystrophic epidermolysis bullosa treatment. Cytotherapy 2021; 23:961-973. [PMID: 34376336 PMCID: PMC8569889 DOI: 10.1016/j.jcyt.2021.06.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 05/25/2021] [Accepted: 06/22/2021] [Indexed: 12/12/2022]
Abstract
Mesenchymal stromal cells (MSCs) are multi-potent stromal-derived cells capable of self-renewal that possess several advantageous properties for wound healing, making them of interest to the field of dermatology. Research has focused on characterizing the unique properties of MSCs, which broadly revolve around their regenerative and more recently discovered immunomodulatory capacities. Because of ease of harvesting and expansion, differentiation potential and low immunogenicity, MSCs have been leading candidates for tissue engineering and regenerative medicine applications for wound healing, yet results from clinical studies have been variable, and promising pre-clinical work has been difficult to reproduce. Therefore, the specific mechanisms of how MSCs influence the local microenvironment in distinct wound etiologies warrant further research. Of specific interest in MSC-mediated healing is harnessing the secretome, which is composed of components known to positively influence wound healing. Molecules released by the MSC secretome can promote re-epithelialization and angiogenesis while inhibiting fibrosis and microbial invasion. This review focuses on the therapeutic interest in MSCs with regard to wound healing applications, including burns and diabetic ulcers, with specific attention to the genetic skin disease recessive dystrophic epidermolysis bullosa. This review also compares various delivery methods to support skin regeneration in the hopes of combating the poor engraftment of MSCs after delivery, which is one of the major pitfalls in clinical studies utilizing MSCs.
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Affiliation(s)
- Julia Riedl
- Medical Scientist Training Program (MD/PhD), University of Minnesota, Minneapolis, Minnesota, USA; Stem Cell Institute, University of Minnesota, Minneapolis, Minnesota, USA
| | - Courtney Popp
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Cindy Eide
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Christen Ebens
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Jakub Tolar
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA; Stem Cell Institute, University of Minnesota, Minneapolis, Minnesota, USA.
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Nanostructured Lipid Carriers for the Formulation of Topical Anti-Inflammatory Nanomedicines Based on Natural Substances. Pharmaceutics 2021; 13:pharmaceutics13091454. [PMID: 34575531 PMCID: PMC8472073 DOI: 10.3390/pharmaceutics13091454] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/20/2021] [Accepted: 08/27/2021] [Indexed: 11/16/2022] Open
Abstract
The main function of the skin is to protect the body from the external environment. However, the skin can undergo inflammatory processes, due to genetic, hormonal, or environmental factors. When the defense system is overloaded, there is an increase in pro-inflammatory mediators and reactive oxygen species (ROS), which results in skin disorders. Among the substances used to treat these inflammatory processes, many natural substances with anti-inflammatory and antioxidant properties are being studied: nature is yet an abundant source to obtain diverse pharmacological actives. The treatment of skin diseases is usually focused on topical application, as it reduces the risk of systemic side effects and prevents drug degradation by first-pass metabolism. Thus, the properties of drug delivery vehicles can facilitate or inhibit its permeation. Due to the hydrophobic nature of the skin, a promising strategy to improve dermal drug penetration is the use of lipid-based nanoparticles, such as nanostructured lipid carriers (NLC). Therefore, in this review, we present NLC as a tool to improve dermal administration of natural substances with anti-inflammatory properties.
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Bhatia E, Kumari D, Sharma S, Ahamad N, Banerjee R. Nanoparticle platforms for dermal antiaging technologies: Insights in cellular and molecular mechanisms. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2021; 14:e1746. [PMID: 34423571 DOI: 10.1002/wnan.1746] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 06/30/2021] [Accepted: 07/08/2021] [Indexed: 01/16/2023]
Abstract
Aging is a continuous process defined by a progressive functional decline in physiological parameters. Skin, being one of the most vulnerable organs, shows early signs of aging which are predominantly affected by intrinsic factors like hormone, gender, mood, enzymes, and genetic predisposition, and extrinsic factors like exposure to radiation, air pollution, and heat. Visible morphological and anatomical changes associated with skin aging occur due to underlying physiological aberrations governed by numerous complex interactions at cellular and subcellular levels. Nanoparticles are perceived as a powerful tool in the cosmeceutical industry both for augmenting the efficacy of existing agents and as a novel standalone therapy. Both organic and inorganic nanoparticles have been extensively investigated in antiaging applications. The use of nanoparticles helps to enhance the activity of antiaging molecules by selectively targeting cellular and molecular pathways. On the other hand, the nanoparticle platforms also gained increasing popularity as the skin protectant against extrinsic factors such as UV radiation and pollutants. This review comprehensively discusses skin aging and its mechanism by highlighting the impact on cellular, subcellular, and epigenetic elements. Importantly, the review elaborates on the examples of organic and inorganic nanoparticle-based formulations developed for antiaging application and provides mechanistic insights on how they modulate the mechanisms of skin aging. The clinical progress of nanoparticle antiaging technologies and factors that impact clinical translation are also explored. This article is categorized under: Nanotechnology Approaches to Biology > Nanoscale Systems in Biology Therapeutic Approaches and Drug Discovery > Emerging Technologies.
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Affiliation(s)
- Eshant Bhatia
- Nanomedicine Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Durga Kumari
- Nanomedicine Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Shivam Sharma
- Nanomedicine Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Nadim Ahamad
- Nanomedicine Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Rinti Banerjee
- Nanomedicine Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
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Spin M, Vocci MC, Sardeli KM, Serafim CTR, Velozo BC, Popim RC, Castro MCNE. LESÃO POR FRICÇÃO EM IDOSOS. ESTIMA 2021. [DOI: 10.30886/estima.v19.1002_pt] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Objetivos:identificar na literatura científica o conhecimento produzido sobre lesões por fricção em idosos. Métodos: trata-se de uma revisão integrativa de literatura (2014-2019), realizada a partir de busca nas bases de dados/plataformas National Library of Medicine, Biomedical Answers e Biblioteca Virtual em Saúde, com descritores e os operadores booleanos “and” e “or”. Resultados: a partir da busca bibliográfica, seleção e análise, oito artigos compuseram a amostra. Para lesão por fricção em idosos emergiram quatro pilares do cuidado: manutenção da homeostase orgânica e tissular com foco na nutrição e hidratação apropriada; evitar traumas na pele senil, proporcionando um ambiente seguro com dispositivos adequados; e a sistematização da assistência e educação em saúde do cuidado com a pele do idoso. Conclusão: como mecanismos de prevenção, encontram-se a realização da prevenção primária por meio de um plano de cuidados singular e as atividades de educação em saúde, focadas nos fatores de risco e nas vulnerabilidades, minimizando danos e complicações
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Affiliation(s)
- Mayara Spin
- Universidade Estadual Paulista – Faculdade de Medicina de Botucatu − Botucatu (SP), Brasil
| | | | | | | | - Bruna Cristina Velozo
- Universidade Estadual Paulista – Faculdade de Medicina de Botucatu − Botucatu (SP), Brasil
| | - Regina Célia Popim
- Universidade Estadual Paulista – Faculdade de Medicina de Botucatu − Botucatu (SP), Brasil
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Spin M, Vocci MC, Sardeli KM, Serafim CTR, Velozo BC, Popim RC, Castro MCNE. SKIN TEARS IN THE ELDERLY. ESTIMA 2021. [DOI: 10.30886/estima.v19.1002_in] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Objectives: to identify in the scientific literature the knowledge produced about skin tears injuries in the elderly. Methods: it is an integrative literature review (2014-2019), carried out by searching the databases/platforms National Library of Medicine, Biomedical Answers and Biblioteca Virtual em Saúde, with descriptors and the Boolean operators “and” and “or ”. Results: from the bibliographic search, selection and analysis, eight articles made up the sample. For skin tears injuries in the elderly, four pillars of care emerged: maintenance of organic and tissue homeostasis with a focus on proper nutrition and hydration; avoid trauma to senile skin, providing a safe environment with suitable devices; and the systematization of health care and education for elderly skin care. Conclusion: as prevention mechanisms, primary prevention is achieved through a unique care plan and health education activities, focused on risk factors and vulnerabilities, minimizing damage and complications.
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Affiliation(s)
- Mayara Spin
- Universidade Estadual Paulista – Faculdade de Medicina de Botucatu − Botucatu (SP), Brasil
| | | | | | | | - Bruna Cristina Velozo
- Universidade Estadual Paulista – Faculdade de Medicina de Botucatu − Botucatu (SP), Brasil
| | - Regina Célia Popim
- Universidade Estadual Paulista – Faculdade de Medicina de Botucatu − Botucatu (SP), Brasil
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27
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Michalakis K, Panagiotou G, Ilias I, Pazaitou‐Panayiotou K. Obesity and COVID-19: A jigsaw puzzle with still missing pieces. Clin Obes 2021; 11:e12420. [PMID: 33073512 PMCID: PMC7645965 DOI: 10.1111/cob.12420] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 09/18/2020] [Accepted: 09/23/2020] [Indexed: 12/16/2022]
Abstract
Apart from posing various mechanical and medical issues compromising general health, obesity is a major factor for respiratory tract infections, due to specific inflammation and immunological compromise. The burden of obesity on morbidity and mortality of SARS-CoV-2 infection/COVID-19 is considerable. Herein, we aimed to search the literature and present to the readers pathophysiologic pathways that may associate obesity and COVID-19. We present potential mechanisms, which might partly explain why patients with obesity are more prone to suffer from respiratory infections in the context of COVID-19. Better understanding of these pathways could eventually guide management strategies and therapies for COVID-19 in the future.
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Affiliation(s)
| | - Grigorios Panagiotou
- 1st Laboratory of PharmacologySchool of Medicine, Aristotle University of ThessalonikiThessalonikiGreece
| | - Ioannis Ilias
- Department of Endocrinology, Diabetes and MetabolismElena Venizelou HospitalAthensGreece
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Baban NS, Orozaliev A, Stubbs CJ, Song YA. Understanding interfacial fracture behavior between microinterlocked soft layers using physics-based cohesive zone modeling. Phys Rev E 2020; 102:012801. [PMID: 32794903 DOI: 10.1103/physreve.102.012801] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 06/16/2020] [Indexed: 12/23/2022]
Abstract
We examine the underlying fracture mechanics of the human skin dermal-epidermal layer's microinterlocks using a physics-based cohesive zone finite-element model. Using microfabrication techniques, we fabricated highly dense arrays of spherical microstructures of radius ≈50μm without and with undercuts, which occur in an open spherical cavity whose centroid lies below the microstructure surface to create microinterlocks in polydimethylsiloxane layers. From experimental peel tests, we find that the maximum density microinterlocks without and with undercuts enable the respective ≈4-fold and ≈5-fold increase in adhesion strength as compared to the plain layers. Critical visualization of the single microinterlock fracture from the cohesive zone model reveals a contact interaction-based phenomena where the primary propagating crack is arrested and the secondary crack is initiated in the microinterlocked area. Strain energy energetics confirmed significantly lower strain energy dissipation for the microinterlock with the undercut as compared to its nonundercut counterpart. These phenomena are completely absent in a plain interface fracture where the fracture propagates catastrophically without any arrests. These events confirm the difference in the experimental results corroborated by the Cook-Gordon mechanism. The findings from the cohesive zone simulation provide deeper insights into soft microinterlock fracture mechanics that could prominently help in the rational designing of sutureless skin grafts and electronic skin.
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Affiliation(s)
- Navajit S Baban
- Division of Engineering, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates.,Department of Mechanical and Aerospace Engineering, New York University, New York, New York 11201, USA
| | - Ajymurat Orozaliev
- Division of Engineering, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
| | - Christopher J Stubbs
- Department of Mechanical Engineering, University of Idaho, Moscow, Idaho 83848, USA
| | - Yong Ak Song
- Division of Engineering, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates.,Department of Chemical and Biomolecular Engineering, New York University, New York, New York 11201, USA
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Robles-Romero JM, Romero-Martín M, Conde-Guillén G, Cruces-Romero D, Gómez-Salgado J, Ponce-Blandón JA. The Physics of Fluid Dynamics Applied to Vascular Ulcers and Its Impact on Nursing Care. Healthcare (Basel) 2020; 8:healthcare8020147. [PMID: 32481597 PMCID: PMC7349071 DOI: 10.3390/healthcare8020147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 05/24/2020] [Accepted: 05/25/2020] [Indexed: 11/16/2022] Open
Abstract
The high incidence of vascular ulcers and the difficulties encountered in their healing process require the understanding of their multiple etiologies to develop effective strategies focused on providing different treatment options. This work provides a description of the principles of the physics of fluid dynamics related to vascular ulcers. The morphological characteristics of the cardiovascular system promote blood flow. The contraction force of the left ventricle is enhanced by its ability to reduce its radius of curvature and by increasing the thickness of the ventricular wall (Laplace’s Law). Arterial flow must overcome vascular resistance (Ohm’s equation). The elastic nature of the artery and the ability to reduce its diameter as flow rate progresses facilitate blood conduction at high speed up to arteriolar level, and this can be determined by the second equation of continuity. As it is a viscous fluid, we must discuss laminar flow, calculated by the Reynolds number, which favors proper conduction while aiming at the correct net filtration pressure. Any endothelial harmful process that affects the muscle wall of the vessel increases the flow speed, causing a decrease in capillary hydrostatic pressure, thus reducing the exchange of nutrients at the interstitial level. With regard to the return system, the flow direction is anti-gravity and requires endogenous aid to establish the Starling’s equilibrium. Knowledge on the physics of vascular fluid dynamics makes it easier to understand the processes of formation of these ulcers so as to choosing the optimal healing and prevention techniques for these chronic wounds.
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Affiliation(s)
- José Miguel Robles-Romero
- Faculty of Nursing, Department of Nursing, University of Huelva, 21071 Huelva, Spain; (J.M.R.-R.); (M.R.-M.)
| | - Macarena Romero-Martín
- Faculty of Nursing, Department of Nursing, University of Huelva, 21071 Huelva, Spain; (J.M.R.-R.); (M.R.-M.)
- Cruz Roja University Nursing School, University of Seville, 41009 Seville, Spain;
| | - Gloria Conde-Guillén
- Ministry of Education, Government of Spain, Delegation of Huelva, 21002 Huelva, Spain;
| | | | - Juan Gómez-Salgado
- Faculty of Labour Sciences, Department of Sociology, Social Work and Public Health, University of Huelva, 21007 Huelva, Spain
- Safety and Health Postgraduate Programme, Universidad Espíritu Santo, Guayaquil 092301, Ecuador
- Correspondence: ; Tel.: +34-959-219-700
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Cao C, Xiao Z, Wu Y, Ge C. Diet and Skin Aging-From the Perspective of Food Nutrition. Nutrients 2020; 12:E870. [PMID: 32213934 PMCID: PMC7146365 DOI: 10.3390/nu12030870] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 03/12/2020] [Accepted: 03/13/2020] [Indexed: 02/07/2023] Open
Abstract
We regularly face primary challenges in deciding what to eat to maintain young and healthy skin, defining a healthy diet and the role of diet in aging. The topic that currently attracts maximum attention is ways to maintain healthy skin and delay skin aging. Skin is the primary barrier that protects the body from external aggressions. Skin aging is a complex biological process, categorized as chronological aging and photo-aging, and is affected by internal factors and external factors. With the rapid breakthrough of medicine in prolonging human life and the rapid deterioration of environmental conditions, it has become urgent to find safe and effective methods to treat skin aging. For diet, as the main way for the body to obtain energy and nutrients, people have gradually realized its importance to the skin. Therefore, in this review, we discuss the skin structure, aging manifestations, and possible mechanisms, summarize the research progress, challenges, possible directions of diet management, and effects of foodborne antioxidants on skin aging from the perspective of food and nutrition.
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Affiliation(s)
- Changwei Cao
- Livestock Product Processing Engineering and Technology Research Center of Yunnan Province, Yunnan Agricultural University, Kunming 650201, China; (C.C.); (Z.X.)
- College of Food Science, Sichuan Agricultural University, Ya’ an, Sichuan 625014, China;
| | - Zhichao Xiao
- Livestock Product Processing Engineering and Technology Research Center of Yunnan Province, Yunnan Agricultural University, Kunming 650201, China; (C.C.); (Z.X.)
- College of Food Science and technology, Yunnan Agricultural University, Kunming, Yunnan 650201, China
| | - Yinglong Wu
- College of Food Science, Sichuan Agricultural University, Ya’ an, Sichuan 625014, China;
| | - Changrong Ge
- Livestock Product Processing Engineering and Technology Research Center of Yunnan Province, Yunnan Agricultural University, Kunming 650201, China; (C.C.); (Z.X.)
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31
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A Comparison of the Biomechanical Protection Provided by 2 Cyanoacrylate-Based Skin Protectants. J Wound Ostomy Continence Nurs 2020; 47:118-123. [DOI: 10.1097/won.0000000000000618] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Beeckman D, Serraes B, Anrys C, Van Tiggelen H, Van Hecke A, Verhaeghe S. A multicentre prospective randomised controlled clinical trial comparing the effectiveness and cost of a static air mattress and alternating air pressure mattress to prevent pressure ulcers in nursing home residents. Int J Nurs Stud 2019; 97:105-113. [PMID: 31234104 DOI: 10.1016/j.ijnurstu.2019.05.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 05/25/2019] [Accepted: 05/28/2019] [Indexed: 11/29/2022]
Abstract
BACKGROUND Pressure ulcers are a global issue and substantial concern for healthcare systems. Various types of support surfaces that prevent pressure ulcer are available. Data about the effectiveness and cost of static air support surfaces and alternating air pressure mattresses is lacking. OBJECTIVES To compare the effectiveness and cost of static air support surfaces versus alternating air pressure support surfaces in a nursing home population at high risk for pressure ulcers. DESIGN Prospective, multicentre, randomised controlled clinical, non-inferiority trial. SETTING Twenty-six nursing homes in Flanders, Belgium. PARTICIPANTS A consecutive sample of 308 participants was selected based on the following eligibility criteria: high risk for pressure ulcer and/or with category 1 pressure ulcer, being bedbound and/or chair bound, aged > 65 years, and use of an alternating air pressure mattress. METHODS The participants were allocated to the intervention group (n = 154) using static air support surfaces and the control group (n = 154) using alternating air pressure support surfaces. The main outcome measures were cumulative incidence and incidence density of the participants developing a new category II-IV pressure ulcer within a 14-day observation period, time to develop a new pressure ulcer, and purchase costs of the support surfaces. RESULTS The intention-to-treat analysis revealed a significantly lower incidence of category II-IV pressure ulcer in the intervention group (n = 8/154, 5.2%) than in the control group (n = 18/154, 11.7%) (p = 0.04). The median time to develop a pressure ulcer was significantly longer in the intervention group (10.5 days, interquartile range [IQR]: 1-14) than in the control group (5.4 days, [IQR]: 1-12; p = 0.05). The probability to remain pressure ulcer free differed significantly between the two study groups (log-rank X² = 4.051, df = 1, p = 0.04). The overall cost of the mattress was lower in the intervention group than in the control group. CONCLUSIONS A static air mattress was significantly more effective than an alternating air pressure mattress in preventing pressure ulcer in a high-risk nursing home population. Considering multiple lifespans and purchase costs, static air mattresses were more cost-effective than alternating air pressure mattresses.
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Affiliation(s)
- Dimitri Beeckman
- Skin Integrity Research Group (SKINT), University Centre for Nursing and Midwifery, Department of Public Health and Primary Care, Faculty of Medicine and Health Sciences, Ghent University, Belgium; School of Nursing and Midwifery, Royal College of Surgeons in Ireland, Ireland; School of Health Sciences, Örebro University, Sweden; Research Unit of Plastic Surgery, Department of Clinical Research, Faculty of Health Sciences, Southern Denmark; School of Nursing and Midwifery, Monash University, Australia.
| | - Brecht Serraes
- Skin Integrity Research Group (SKINT), University Centre for Nursing and Midwifery, Department of Public Health and Primary Care, Faculty of Medicine and Health Sciences, Ghent University, Belgium; Nursing department (General Hospital) AZ Nikolaas, Hospitaalstraat 1, B-9100 Sint-Niklaas, Belgium.
| | - Charlotte Anrys
- Skin Integrity Research Group (SKINT), University Centre for Nursing and Midwifery, Department of Public Health and Primary Care, Faculty of Medicine and Health Sciences, Ghent University, Belgium.
| | - Hanne Van Tiggelen
- Skin Integrity Research Group (SKINT), University Centre for Nursing and Midwifery, Department of Public Health and Primary Care, Faculty of Medicine and Health Sciences, Ghent University, Belgium.
| | - Ann Van Hecke
- Skin Integrity Research Group (SKINT), University Centre for Nursing and Midwifery, Department of Public Health and Primary Care, Faculty of Medicine and Health Sciences, Ghent University, Belgium.
| | - Sofie Verhaeghe
- Skin Integrity Research Group (SKINT), University Centre for Nursing and Midwifery, Department of Public Health and Primary Care, Faculty of Medicine and Health Sciences, Ghent University, Belgium.
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Epigenetic Regulation of Skin Cells in Natural Aging and Premature Aging Diseases. Cells 2018; 7:cells7120268. [PMID: 30545089 PMCID: PMC6315602 DOI: 10.3390/cells7120268] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 12/07/2018] [Accepted: 12/11/2018] [Indexed: 02/06/2023] Open
Abstract
Skin undergoes continuous renewal throughout an individual’s lifetime relying on stem cell functionality. However, a decline of the skin regenerative potential occurs with age. The accumulation of senescent cells over time probably reduces tissue regeneration and contributes to skin aging. Keratinocytes and dermal fibroblasts undergo senescence in response to several intrinsic or extrinsic stresses, including telomere shortening, overproduction of reactive oxygen species, diet, and sunlight exposure. Epigenetic mechanisms directly regulate skin homeostasis and regeneration, but they also mark cell senescence and the natural and pathological aging processes. Progeroid syndromes represent a group of clinical and genetically heterogeneous pathologies characterized by the accelerated aging of various tissues and organs, including skin. Skin cells from progeroid patients display molecular hallmarks that mimic those associated with naturally occurring aging. Thus, investigations on progeroid syndromes strongly contribute to disclose the causal mechanisms that underlie the aging process. In the present review, we discuss the role of epigenetic pathways in skin cell regulation during physiologic and premature aging.
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Vela-Romera A, Carriel V, Martín-Piedra MA, Aneiros-Fernández J, Campos F, Chato-Astrain J, Prados-Olleta N, Campos A, Alaminos M, Garzón I. Characterization of the human ridged and non-ridged skin: a comprehensive histological, histochemical and immunohistochemical analysis. Histochem Cell Biol 2018; 151:57-73. [PMID: 30099600 PMCID: PMC6328512 DOI: 10.1007/s00418-018-1701-x] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/28/2018] [Indexed: 01/12/2023]
Abstract
The structure of the human skin is directly dependent on its location and the mechanical forces to which it is subjected. In the present work, we have performed a comprehensive analysis of the human ridged and non-ridged skin to identify the differences and similarities between both skin types. For this purpose, human skin samples were obtained from dorsal hand skin (DHS), palmar hand skin (PHS), dorsal foot skin (DFS) and plantar foot skin (PFS) from the same cadaveric donors. Histological, histochemical and semiquantitative and quantitative immunohistochemical analyses were carried out to evaluate the epidermis, dermis and basement membrane. Results show that the epithelial layer of ridged skin had larger cell number and size than non-ridged skin for most strata. Melanocytes and Langerhans cells were more abundant in non-ridged skin, whereas Merkel cells were preferentially found in ridged skin. The expression pattern of CK5/6 was slightly differed between non-ridged and ridged skin. Involucrin expression was slightly more intense in non-ridged skin than in ridged skin. Collagen was more abundant in foot skin dermis than in hand skin, and in ridged skin as compared to non-ridged skin. Elastic fibers were more abundant in DHS. Biglycan was more abundant in foot skin than in hand skin. No differences were found for blood and lymphatic vessels. The basement membrane laminin was preferentially found in foot skin. These results revealed important differences at the epithelial, dermal and basement membrane levels that could contribute to a better knowledge of the human skin histology.
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Affiliation(s)
- A Vela-Romera
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Avenida de la Investigación 11, Torre A, Planta 5, 18016, Granada, Spain.,PhD Program in Biomedicine, Escuela de Posgrado, University of Granada, Granada, Spain
| | - V Carriel
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Avenida de la Investigación 11, Torre A, Planta 5, 18016, Granada, Spain.,Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - M A Martín-Piedra
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Avenida de la Investigación 11, Torre A, Planta 5, 18016, Granada, Spain.,Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | | | - F Campos
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Avenida de la Investigación 11, Torre A, Planta 5, 18016, Granada, Spain.,Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - J Chato-Astrain
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Avenida de la Investigación 11, Torre A, Planta 5, 18016, Granada, Spain
| | - N Prados-Olleta
- Orthopedic Surgery Department, Virgen de las Nieves University Hospital, Granada, Spain.,Department of Surgery, University of Granada, Granada, Spain
| | - A Campos
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Avenida de la Investigación 11, Torre A, Planta 5, 18016, Granada, Spain.,Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - M Alaminos
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Avenida de la Investigación 11, Torre A, Planta 5, 18016, Granada, Spain. .,Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain.
| | - I Garzón
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Avenida de la Investigación 11, Torre A, Planta 5, 18016, Granada, Spain.,Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
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Cho BA, Yoo SK, Seo JS. Signatures of photo-aging and intrinsic aging in skin were revealed by transcriptome network analysis. Aging (Albany NY) 2018; 10:1609-1626. [PMID: 30021930 PMCID: PMC6075446 DOI: 10.18632/aging.101496] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 07/06/2018] [Indexed: 12/18/2022]
Abstract
There are various factors that alter physiological characteristics in skin. Elucidating the underlying mechanism of transcriptional alterations by intrinsic and extrinsic factors may lead us to understand the aging process of skin. To identify the transcriptomic changes of the aging skin, we analyzed publicly available RNA sequencing data from Genotype-Tissue Expression (GTEx) project. GTEx provided RNA sequencing data of suprapubic (n=228) and lower leg (n=349) skins, which are photo-protected and photo-damaged. Using differentially expressed gene analysis and weighted gene co-expression network analysis, we characterized transcriptomic changes due to UV exposure and aging. Genes involved in skin development such as epidermal differentiation complex component (SPRR and LCE families), vasculature development (TGFBR1, TGFBR2, TGFBR3, KDR, FGF2, and VEGFC), and matrix metalloproteinase (MMP2, MMP3, MMP8, MMP10, and MMP13) were up-regulated by UV exposure. Also, down-regulated lipid metabolism and mitochondrial biogenesis were observed in photo-damaged skin. Moreover, wound healing process was universally down-regulated in suprapubic and lower leg with aging and further down-regulation of lipid metabolism and up-regulation of vasculature development were found as photo-aging signatures. In this study, dynamic transcriptomic alterations were observed in aged skin. Hence, our findings may help to discover a potential therapeutic target for skin rejuvenation.
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Affiliation(s)
- Byuri Angela Cho
- Gong Wu Genomic Medicine Institute, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
- Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Republic of Korea
- These authors contributed equally to this work
| | - Seong-Keun Yoo
- Genomic Institute, Macrogen Inc., Seoul, Republic of Korea
- These authors contributed equally to this work
| | - Jeong-Sun Seo
- Gong Wu Genomic Medicine Institute, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
- Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Republic of Korea
- Genomic Institute, Macrogen Inc., Seoul, Republic of Korea
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Alkharabsheh O, Kannarkatt P, Kannarkatt J, Karapetyan L, Laird-Fick HS, Al-Janadi A. An overview of the toxicities of checkpoint inhibitors in older patients with cancer. J Geriatr Oncol 2018; 9:451-458. [PMID: 29567089 DOI: 10.1016/j.jgo.2018.02.002] [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: 06/01/2017] [Revised: 10/20/2017] [Accepted: 02/07/2018] [Indexed: 10/17/2022]
Abstract
Checkpoint inhibitors offer an exciting new option for treatment of a wide variety of cancers. By binding to surface receptors or their associated ligands on T cells, this class of drugs enhances immune activation and response to cancer cells. In available studies, the drugs are well tolerated, although toxicity involving skin, gastrointestinal tract, liver, lungs, and endocrine organs has been observed. Unfortunately, few studies to date have included patients older than 70 years of age. Since aging has been linked to changes in immune function, there are theoretical concerns that this patient population might experience a different profile of adverse events. This article reviews the tolerability of checkpoint inhibitors in older patients with cancer in clinical practice.
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Affiliation(s)
- Omar Alkharabsheh
- Michigan State University, Department of Medicine, Division of Hematology/Oncology, East Lansing, MI, USA.
| | - Paul Kannarkatt
- Cooper University Hospital, Department of Medicine, Camden, NJ, USA.
| | - Joseph Kannarkatt
- Michigan State University, Department of Medicine, Division of Hematology/Oncology, East Lansing, MI, USA.
| | - Lilit Karapetyan
- Michigan State University, Department of Medicine, East Lansing, MI, USA.
| | | | - Anas Al-Janadi
- Michigan State University, Department of Medicine, Division of Hematology/Oncology, East Lansing, MI, USA.
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