1
|
Owen EJ, Heylen RA, Stewart K, Winyard PG, Jenkins ATA. Detecting and monitoring incontinence associated dermatitis: Does impedance spectroscopy have a part to play? Proc Inst Mech Eng H 2024; 238:655-666. [PMID: 36882988 PMCID: PMC11318234 DOI: 10.1177/09544119231159178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 02/06/2023] [Indexed: 03/09/2023]
Abstract
In this review, current understanding of the prevention and treatment of Incontinence Associated Dermatitis (IAD) is discussed. The need for preventative measures which target specific faecal/urinary irritants is highlighted, including the role of urease inhibitors. There is no existing internationally and clinically accepted method to diagnose and categorise the severity of IAD. Diagnosis currently relies on visual inspection; non-invasive techniques to assess skin barrier function could remove subjectiveness, particularly in darker skin tones. Impedance spectroscopy is a non-invasive technique which can be used to monitor skin barrier function, supporting visual assessments. Six studies (2003-2021) which used impedance to assess dermatitis were reviewed; inflamed skin was distinguishable from healthy skin in each case. This suggests that impedance spectroscopy could be useful in diagnosis early-stage IAD, potentially enabling earlier intervention. Finally, the authors present their initial findings on the role of urease in skin breakdown in an in vivo IAD model, using impedance spectroscopy.
Collapse
Affiliation(s)
- Emily J Owen
- Department of Chemistry, University of Bath, Bath, UK
| | | | | | | | | |
Collapse
|
2
|
Zamil DH, Khan RM, Braun TL, Nawas ZY. Dermatological uses of rice products: Trend or true? J Cosmet Dermatol 2022; 21:6056-6060. [PMID: 35587098 DOI: 10.1111/jocd.15099] [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: 12/20/2021] [Revised: 01/29/2022] [Accepted: 05/16/2022] [Indexed: 12/27/2022]
Abstract
BACKGROUND Rice has been used for cosmetic purposes for centuries and its benefits have been translated into modern-day skin careproducts. METHODS Pubmed and google were searched with the terms "skin care" and "cosmetics" in conjunction with the words "rice", "rice bran", and "fermented rice bran". Resulting articles were analysed for potential benefits of ingredients contained within rice for skin care and summarised. RESULTS Individual components of rice have been identified including phenolic compounds, betaine, squalene, tricin, and rice bran. These rice-derived ingredients have been found to be antiaging, anti-inflammatory, whitening, photoprotective, and moisturizing. Moreover, rice-derived ingredients have demonstrated benefits for dermatological conditions. Rice bran ash extract increases melanin synthesis and offers protection from radiation and skin injury. Fermented rice bran extract and rice bran broth baths have shown utility in atopic dermatitis treatments. Literature suggests that rice-derived ingredients are also safe, non-irritating, and hypoallergenic. CONCLUSION Ingredients isolated from rice and its components have wide potential for use in skin care and cosmetic products.
Collapse
|
3
|
Chen A, An Y, Huang W, Xuan T, Zhang Q, Ye M, Luo S, Xuan X, He H, Zheng J, Wu J. Highly Water-Preserving Zwitterionic Betaine-Incorporated Collagen Sponges With Anti-oxidation and Anti-inflammation for Wound Regeneration. Front Cell Dev Biol 2020; 8:491. [PMID: 32766236 PMCID: PMC7381158 DOI: 10.3389/fcell.2020.00491] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 05/25/2020] [Indexed: 12/14/2022] Open
Abstract
A core problem in wound healing – with both fundamental and technological significance – concerns the rational design of bioactive and moist microenvironments. Here, we design a new class of zwitterionic betaine-incorporated collagen sponges (BET@COL) with integrated anti-oxidation and anti-inflammatory properties for promoting wound healing in a full-thickness wound model. The presence of zwitterionic betaine in a 3D network structure of collagen enables tightly bound and locked water molecules inside sponges via ionic solvation and confinement effect, while the integration of this amino acid also empowers the sponge with anti-oxidation and anti-inflammatory functions. In vitro results demonstrated that BET@COL collagen sponges strongly preserved water content up to 33.78 ± 0.78% at the 80th min at 37°C (only 0.44 ± 0.18% in control), and also exhibited high cell biocompatibility. Further, BET@COL collagen sponges with different betaine contents were applied to a full-thickness cutaneous wound model in mice, followed by a systematical evaluation and comparison of the effect of preserved water on wound healing efficiency in vivo. The optimal BET@COL collagen sponges were able to maintain high water content (e.g., moist microenvironment), suppress oxidative stress, improve anti-inflammation, all of which impose synergetic healing effects to promote wound closure, granulation formation, re-epithelization, collagen deposition and angiogenesis. This work demonstrates a new material as a promising candidate for wound dressing.
Collapse
Affiliation(s)
- Anqi Chen
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, China
| | - Ying An
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, China
| | - Wen Huang
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, China
| | - Tengxiao Xuan
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, China
| | - Qianwen Zhang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, China.,Department of Dermatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Mengqi Ye
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, China
| | - Sha Luo
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, China
| | - Xuan Xuan
- Department of Dermatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Huacheng He
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, China
| | - Jie Zheng
- Department of Chemical, Biomolecular, and Corrosion Engineering, The University of Akron, Akron, OH, United States.,Department of Polymer Engineering, The University of Akron, Akron, OH, United States
| | - Jiang Wu
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, China
| |
Collapse
|
4
|
Burnett CL, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD, Liebler DC, Marks JG, Shank RC, Slaga TJ, Snyder PW, Andersen FA, Heldreth B. Safety Assessment of Alkyl Betaines as Used in Cosmetics. Int J Toxicol 2019; 37:28S-46S. [PMID: 29761731 DOI: 10.1177/1091581818773354] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The Cosmetic Ingredient Review Expert Panel (Panel) reviewed the safety of 11 alkyl betaines as used in cosmetics. These ingredients are reported to function as hair and skin conditioning agents, antistatic agents, surfactants-cleansing agents, and viscosity-increasing agents in cosmetic products. Although there are data gaps, the shared chemical core structure, similar functions and concentrations of use in cosmetics, and the expected similarities in physicochemical properties enabled grouping these ingredients and reading across the available toxicological data to support the safety assessment of each individual compound in the entire group. The Panel concluded alkyl betaines were safe as cosmetic ingredients in the present practices of use and concentration, when formulated to be nonirritating.
Collapse
Affiliation(s)
- Christina L Burnett
- 1 Scientific Analyst/Writer, Cosmetic Ingredient Review, Washington, DC, USA
| | - Wilma F Bergfeld
- 2 Panel Member, Cosmetic Ingredient Review Expert, Washington, DC, USA
| | - Donald V Belsito
- 2 Panel Member, Cosmetic Ingredient Review Expert, Washington, DC, USA
| | - Ronald A Hill
- 2 Panel Member, Cosmetic Ingredient Review Expert, Washington, DC, USA
| | - Curtis D Klaassen
- 2 Panel Member, Cosmetic Ingredient Review Expert, Washington, DC, USA
| | - Daniel C Liebler
- 2 Panel Member, Cosmetic Ingredient Review Expert, Washington, DC, USA
| | - James G Marks
- 2 Panel Member, Cosmetic Ingredient Review Expert, Washington, DC, USA
| | - Ronald C Shank
- 2 Panel Member, Cosmetic Ingredient Review Expert, Washington, DC, USA
| | - Thomas J Slaga
- 2 Panel Member, Cosmetic Ingredient Review Expert, Washington, DC, USA
| | - Paul W Snyder
- 2 Panel Member, Cosmetic Ingredient Review Expert, Washington, DC, USA
| | - F Alan Andersen
- 3 Former Director, Cosmetic Ingredient Review, Washington, DC, USA
| | - Bart Heldreth
- 4 Executive Director, Cosmetic Ingredient Review, Washington, DC, USA
| |
Collapse
|
5
|
Rauhala L, Hämäläinen L, Dunlop TW, Pehkonen P, Bart G, Kokkonen M, Tammi M, Tammi R, Pasonen-Seppänen S. The organic osmolyte betaine induces keratin 2 expression in rat epidermal keratinocytes — A genome-wide study in UVB irradiated organotypic 3D cultures. Toxicol In Vitro 2015; 30:462-75. [DOI: 10.1016/j.tiv.2015.09.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 09/01/2015] [Accepted: 09/12/2015] [Indexed: 12/18/2022]
|
6
|
Helen L, O'Donnell BD, Moore E. Nerve localization techniques for peripheral nerve block and possible future directions. Acta Anaesthesiol Scand 2015; 59:962-74. [PMID: 25997933 DOI: 10.1111/aas.12544] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Revised: 03/24/2015] [Accepted: 04/05/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND Ultrasound guidance is now a standard nerve localization technique for peripheral nerve block (PNB). Ultrasonography allows simultaneous visualization of the target nerve, needle, local anesthetic injectate, and surrounding anatomical structures. Accurate deposition of local anesthetic next to the nerve is essential to the success of the nerve block procedure. Due to limitations in the visibility of both needle tip and nerve surface, the precise relationship between needle tip and target nerve is unknown at the moment of injection. Importantly, nerve injury may result both from an inappropriately placed needle tip and inappropriately placed local anesthetic. The relationship between the block needle tip and target nerve is of paramount importance to the safe conduct of peripheral nerve block. METHODS This review summarizes the evolution of nerve localization in regional anesthesia, characterizes a problem faced by clinicians in performing ultrasound-guided nerve block, and explores the potential technological solutions to this problem. RESULTS To date, technology newly applied to PNB includes real-time 3D imaging, multi-planar magnetic needle guidance, and in-line injection pressure monitoring. This review postulates that optical reflectance spectroscopy and bioimpedance may allow for accurate identification of the relationship between needle tip and target nerve, currently a high priority deficit in PNB techniques. CONCLUSIONS Until it is known how best to define the relationship between needle and nerve at the moment of injection, some common sense principles are suggested.
Collapse
Affiliation(s)
- L. Helen
- Sensing and Separation Group; Chemistry Department and Life Science Interface Group; Tyndall National Institute; University College Cork; Cork Ireland
| | - B. D. O'Donnell
- Department of Anesthesia; Cork University Hospital & ASSERT for Health Centre; University College Cork; Cork Ireland
| | - E. Moore
- Sensing and Separation Group; Chemistry Department and Life Science Interface Group; Tyndall National Institute; University College Cork; Cork Ireland
| |
Collapse
|
7
|
Lomash V, Pant SC. A novel decontaminant and wound healant formulation of N,N'-dichloro-bis[2,4,6-trichlorophenyl]urea against sulfur mustard-induced skin injury. Wound Repair Regen 2014; 22:85-95. [PMID: 24393156 DOI: 10.1111/wrr.12126] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2013] [Accepted: 08/28/2013] [Indexed: 11/27/2022]
Abstract
Sulfur mustard (SM)-induced dermatotoxicity can be prevented by an immediate use of decontamination agents. However, practically due to the time lapse between decontamination and exposure, there is always a possibility of wound formation. In view of this, a hydrophilic decontamination formulation of CC-2 (DRDE/WH-03) was fortified with Aloe vera gel and betaine (DRDE/WH-01) for improving its wound healing ability. Swiss albino mice were exposed to SM percutaneously (5 mg/kg) once, and after 24 hours, DRDE/WH-01, DRDE/WH-03, framycetin, and aloe gel were applied topically, daily for 7 days. Skin sections were subjected to histopathology, histomorphologic grading, tissue leukocytosis, and immunohistochemistry of inflammatory-reparative biomarkers on 3 and 7 days, respectively. DRDE/WH-01, framycetin, and aloe gel showed better reepithelialization, angiogenesis, and fibroplasia compared with DRDE/WH-03 and SM control. On the basis of histomorphologic scale, DRDE/WH-01, framycetin, and aloe gel were found to be equally efficacious. Up-regulation of interleukin-6 and infiltrating leukocytes, endothelial nitric oxide synthase and angiogenesis, fibroblast growth factor, and transforming growth factor-alpha with fibroplasia and reepithelialization were well correlated at various stages of the healing process. DRDE/WH-01 was equally effective as framycetin and has shown improved wound healing efficacy compared with DRDE/WH-03. Thus, DRDE/WH-01 can be recommended as a universal decontaminant and wound healant against vesicant-induced skin injury.
Collapse
Affiliation(s)
- Vinay Lomash
- Department of Pharmacology and Toxicology, Defence R&D Establishment, Gwalior, India
| | | |
Collapse
|
8
|
Lomash V, Jadhav SE, Ahmed F, Vijayaraghavan R, Pant SC. Evaluation of wound-healing formulation against sulphur mustard-induced skin injury in mice. Hum Exp Toxicol 2011; 31:588-605. [PMID: 22144726 DOI: 10.1177/0960327111429139] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Sulphur mustard (SM) is a bifunctional alkylating agent that causes cutaneous blisters in human and animals. Remedies to SM-induced dermatotoxicity are still in experimental stage. Due to inevitable requirement of a wound-healing formulation against SM-induced skin lesions, efficacy of formulations including povidone iodine, Aloe vera gel, betaine or framycetin sulphate was evaluated in present study. SM was applied percutaneously (5 mg/kg) once on back region of Swiss albino mice; and after 24 hours, DRDE/WH-02 (Defence Research and Development Establishment/ Wound Healant- 02, containing polyvinylpyrrolidone [PVP], A. vera gel and betaine), Ovadine, Soframycin or A. vera gel were applied topically, daily for 3 or 7 days in different groups. Skin sections were subjected to histopathology, histomorphologic grading, tissue leukocytosis, terminal deoxynucleotidyl transferase dUTP nick end labelling (TUNEL) assay and immunohistochemistry of inflammatory-reparative biomarkers. DRDE/WH-02 treated mice received highest score on the basis of histomorphologic scale and lowest number of TUNEL-positive cells compared to other groups. DRDE/WH-02 showed better wound healing as evidenced by widespread re-epithelialization, homogenous fibroplasias well supported by the expression of transforming growth factor-α, endothelial nitric oxide synthase (eNOS) and fibroblast growth factor. Upregulation of interleukin 6 in DRDE/WH-02-treated mice skin resulted in increased tissue leukocytosis and an early removal of tissue debris that initiated reparative process at faster rate compared to other groups. In conclusion, DRDE/WH-02 provided better healing effect and can be recommended as an effective wound healant against SM-induced skin injury.
Collapse
Affiliation(s)
- V Lomash
- Department of Pharmacology and Toxicology, Defence Research and Development Establishment, Gwalior, Madhya Pradesh, India
| | | | | | | | | |
Collapse
|
9
|
Habibi M, Olasz EB, Klemer DP. Two-dimensional dielectric imaging for dermatologic screening: a feasibility study. Skin Res Technol 2011; 18:324-31. [PMID: 22092364 DOI: 10.1111/j.1600-0846.2011.00566.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/07/2011] [Indexed: 11/28/2022]
Abstract
BACKGROUND/PURPOSE The diagnosis of skin neoplasia can be very challenging, given the low sensitivity and specificity of traditional methods of diagnosis which are based on visual appearance. Techniques which are based on the dielectric properties of cells can improve the diagnostic accuracy of screening techniques; as an example, point-contact coaxial probes for dielectric measurement can improve diagnostic accuracy. Unfortunately, these probes are not well suited for two-dimensional spatial imaging of the skin surface, given that they must be manually scanned over the skin surface. METHODS/RESULTS An electronic scanning probe was developed and fabricated to simulate an open-ended coaxial probe suitable for two-dimensional dielectric imaging of human skin in real time. A clinical study was undertaken to demonstrate proof-of-concept for the instrumentation. A select group of normal healthy subjects as well as a subject with diagnosed squamous cell carcinoma participated in this study. The electronic scanning probe was found to be a potentially useful tool for providing two-dimensional images from diseased skin. CONCLUSION The electronic scanning probe used for the present study addresses existing limitations with current coaxial probes. Measurements of healthy and diseased areas of skin are provided to illustrate the feasibility of the approach.
Collapse
Affiliation(s)
- Mohammad Habibi
- Department of Electrical Engineering and Computer Sciences, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, USA.
| | | | | |
Collapse
|
10
|
|
11
|
Aberg P, Nicander I, Holmgren U, Geladi P, Ollmar S. Assessment of skin lesions and skin cancer using simple electrical impedance indices. Skin Res Technol 2003; 9:257-61. [PMID: 12877688 DOI: 10.1034/j.1600-0846.2003.00017.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND/AIMS Purpose of this investigation was to assess benign pigmented cellular nevus (BEN), basal cell carcinoma (BCC), dermatofibroma (DER), dysplastic nevus (DYS), and seborrheic keratoses (SEB) using in vivo non- invasive electrical impedance technique. METHODS Electrical impedance was measured at 258 BEN, 34 BCC, 17 DER, 35 DYS, and 26 SEB lesions. Controls were measured at healthy skin close to the lesions. The impedance was measured between 1 kHz and 1 MHz at five depth settings. After the impedance measurements the lesions were histopathologically diagnosed. The impedance spectra were parameterized to four indices prior to the statistical analysis of the data. RESULTS There were significant differences between the lesions and their controls for BEN (P < 0.001), BCC (P < 0.001), DYS (P < 0.01), and SEB (P < 0.01). CONCLUSIONS There are clear statistical differences between impedance of common lesions and control skin. With some further developments, the impedance technique can be useful as a diagnostic decision support tool for skin cancer assessment.
Collapse
Affiliation(s)
- Peter Aberg
- Division of Medical Engineering, Karolinska Institutet, Huddinge, Sweden.
| | | | | | | | | |
Collapse
|