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Liu S, Geng J, Chen W, Zong Y, Zhao Y, Du R, He Z. Isolation, structure, biological activity and application progress of ginseng polysaccharides from the Araliaceae family. Int J Biol Macromol 2024; 276:133925. [PMID: 39032904 DOI: 10.1016/j.ijbiomac.2024.133925] [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: 03/29/2024] [Revised: 05/21/2024] [Accepted: 07/15/2024] [Indexed: 07/23/2024]
Abstract
Phytopolysaccharides are a class of natural macromolecules with a range of biological activities. Ginseng, red ginseng, American ginseng, and Panax notoginseng are all members of the Araliaceae family. They are known to contain a variety of medicinal properties and are typically rich in a wide range of medicinal values. Polysaccharides represent is one of the principal active ingredients in the aforementioned plants. However, there is a paucity of detailed reports on the separation methods, structural characteristics and comparison of various pharmacological effects of these polysaccharides. This paper presents a review of the latest research reports on ginseng, red ginseng, American ginseng and ginseng polysaccharides. The differences in extraction, separation, purification, structural characterization, and pharmacological activities of the four polysaccharides are compared and clarified. Upon examination of the current research literature, it becomes evident that the extraction and separation processes of the four polysaccharides are highly similar. Modern pharmacological studies have corroborated the multiple biological activities of these polysaccharides. These activities encompass a range of beneficial effects, including antioxidant stress injury, fatigue reduction, tumor inhibition, depression alleviation, regulation of intestinal flora, immunomodulation, diabetes management, central nervous system protection, anti-aging, and improvement of skin health. This paper presents a review of studies on the extraction, purification, characterization, and bioactivities of four natural plant ginseng polysaccharides. Furthermore, the review presents the most recent research findings on their pharmacological activities. The information provides a theoretical basis for the future application of natural plant polysaccharides and offers a new perspective for the in-depth development of the medicinal value of ginseng in the clinical practice of traditional Chinese medicine.
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Affiliation(s)
- Silu Liu
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Jianan Geng
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Weijia Chen
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Ying Zong
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Yan Zhao
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Rui Du
- Key Laboratory of Animal Production, Product Quality and Security, Ministry of Education of China, Changchun 130118, China; Jilin Provincial Engineering Research Center for Efficient Breeding and Product Development of Sika Deer of China, Changchun 130118, China
| | - Zhongmei He
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China.
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Huang L, Jang WY, Yoon JH, Piao Z, Su J, Kim DS, Kwon KW, Kim JW, Park SH, Kim S, Kim JH, Cho JY. Protective effect of Korean red ginseng water extract on levothyroxine-induced hyperthyroidism and propylthiouracil-induced hypothyroidism in rats. Integr Med Res 2024; 13:101071. [PMID: 39263445 PMCID: PMC11388169 DOI: 10.1016/j.imr.2024.101071] [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: 06/16/2024] [Revised: 07/19/2024] [Accepted: 08/14/2024] [Indexed: 09/13/2024] Open
Abstract
Background Korean red ginseng extract (KRGE) (Family: Araliaceae) is one of the most widely used traditional herbs in Asia. Multiple studies have shown that KRGE has anti-inflammation, anti-fatigue, anti-obesity, anti-oxidant, and anti-cancer effects. Methods Sprague-Dawley rats were divided into five groups for PTU-induced hypothyroidism and six groups for LT4-induced hyperthyroidism. At the experiment's conclusion, rats were sacrificed, and blood, thyroid gland, and liver samples were collected. Body weight was recorded weekly, and serum hormone levels were assessed using enzyme-linked immunoassay. Thyroid gland and liver tissues were stained with hematoxylin and eosin. KRGE was prepared in 0.5% CMC and stored at 4 °C before administration. Results In the LT4-induced hyperthyroidism model, KRGE prevented decreases in body weight, thyroid gland weight, liver weight, serum glucose, and thyroid hormone levels compared to the PTU group. It also reduced increases in T3, T4, and serum aspartate aminotransferase levels after LT4 treatment. Additionally, KRGE improved thyroid gland and liver histopathology, effects not observed in the PTU-induced hypothyroidism model. Conclusion All things considered, our research points to KRGE's potential protective role in rat hyperthyroidism caused by LT4 by lowering thyroid hormone production.
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Affiliation(s)
- Lei Huang
- Department of Biocosmetics, Sungkyunkwan University, Suwon, Republic of Korea
| | - Won Young Jang
- Department of Integrative Biotechnology, Biomedical Institute for Convergence of SKKU (BICS), Sungkyunkwan University, Suwon, Republic of Korea
| | - Ji Hye Yoon
- Department of Biocosmetics, Sungkyunkwan University, Suwon, Republic of Korea
| | - Zhenyan Piao
- Department of Integrative Biotechnology, Biomedical Institute for Convergence of SKKU (BICS), Sungkyunkwan University, Suwon, Republic of Korea
| | - Jinghan Su
- Department of Integrative Biotechnology, Biomedical Institute for Convergence of SKKU (BICS), Sungkyunkwan University, Suwon, Republic of Korea
| | - Dong Seon Kim
- Department of Integrative Biotechnology, Biomedical Institute for Convergence of SKKU (BICS), Sungkyunkwan University, Suwon, Republic of Korea
| | - Ki Woong Kwon
- Department of Integrative Biotechnology, Biomedical Institute for Convergence of SKKU (BICS), Sungkyunkwan University, Suwon, Republic of Korea
| | - Ji Won Kim
- Department of Integrative Biotechnology, Biomedical Institute for Convergence of SKKU (BICS), Sungkyunkwan University, Suwon, Republic of Korea
| | - Sang Hee Park
- Department of Biocosmetics, Sungkyunkwan University, Suwon, Republic of Korea
| | - Sunggyu Kim
- Department of Biocosmetics, Sungkyunkwan University, Suwon, Republic of Korea
- Department of Integrative Biotechnology, Biomedical Institute for Convergence of SKKU (BICS), Sungkyunkwan University, Suwon, Republic of Korea
| | - Jong-Hoon Kim
- Department of Veterinary Physiology College of Medicine, Chonbuk National University Iksan, Republic of Korea
| | - Jae Youl Cho
- Department of Biocosmetics, Sungkyunkwan University, Suwon, Republic of Korea
- Department of Integrative Biotechnology, Biomedical Institute for Convergence of SKKU (BICS), Sungkyunkwan University, Suwon, Republic of Korea
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Truong VL, Bae YJ, Bang JH, Jeong WS. Combination of red ginseng and velvet antler extracts prevents skin damage by enhancing the antioxidant defense system and inhibiting MAPK/AP-1/NF-κB and caspase signaling pathways in UVB-irradiated HaCaT keratinocytes and SKH-1 hairless mice. J Ginseng Res 2024; 48:323-332. [PMID: 38707646 PMCID: PMC11068995 DOI: 10.1016/j.jgr.2024.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 11/29/2023] [Accepted: 01/11/2024] [Indexed: 05/07/2024] Open
Abstract
Background Studies have reported that the combination of two or more therapeutic compounds at certain ratios has more noticeable pharmaceutical properties than single compounds and requires reduced dosage of each agent. Red ginseng and velvet antler have been extensively used in boosting immunity and physical strength and preventing diseases. Thus, this study was conducted to elucidate the skin-protective potentials of red ginseng extract (RGE) and velvet antler extract (VAE) alone or in combination on ultraviolet (UVB)-irradiated human keratinocytes and SKH-1 hairless mice. Methods HaCaT cells were preincubated with RGE/VAE alone or in combination for 2 h before UVB (30 mJ/cm2) irradiation. SKH-1 mice were orally given RGE/VAE alone or in combination for 15 days before exposure to single dose of UVB (600 mJ/cm2). Treated cells and treated skin tissues were collected and subjected to subsequent experiments. Results RGE/VAE pretreatment alone or in combination significantly prevented UVB-induced cell death, apoptosis, reactive oxygen species production, and DNA damage in keratinocytes and SKH-1 mouse skins by downregulating mitogen-activated protein kinases/activator protein 1/nuclear factor kappa B and caspase signaling pathways. These extracts also strengthened the antioxidant defense systems and skin barriers in UVB-irradiated HaCaT cells and SKH-1 mouse skins. Furthermore, RGE/VAE co-administration appeared to be more effective in preventing UVB-caused skin injury than these extracts used alone. Conclusion Overall, these findings suggest that the consumption of RGE/VAE, especially in combination, offers a protective ability against UVB-caused skin injury by preventing inflammation and apoptosis and enhancing antioxidant capacity.
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Affiliation(s)
| | | | | | - Woo-Sik Jeong
- Food and Bio-industry Research Institute, School of Food Science & Biotechnology, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, Republic of Korea
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Draelos ZD, Grimes PE, Watchmaker J, Nelson DB. A Multi-center Trial Evaluating a Serum Comprised of Plant-based Adaptogens Targeting Skin Quality. THE JOURNAL OF CLINICAL AND AESTHETIC DERMATOLOGY 2024; 17:15-19. [PMID: 38444422 PMCID: PMC10911267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
Objective The ability of the skin to maintain homeostasis declines with age. Adaptogens support the capacity of the skin to respond to stress. We sought to evaluate the efficacy of a novel serum comprised of plant-based adaptogens for improving photoaged skin following twice-daily application. Methods A multi-center, 12-week trial was conducted in participants aged 45 to 65 years, Fitzpatrick Skin Type (FST) I to VI, with mild-to-severe photoaging based on a 10-point grading scale (3 [Minimum] to 7 [Maximum]). Visible improvements were assessed in erythema, pore size, skin dullness, skin texture, and uneven pigmentation utilizing a six-point grading scale (0=None to 5=Severe). Global skin quality was measured utilizing our Global Skin Quality Index (GSQI). Sebum measurements were obtained in a subset of participants. Patient satisfaction and tolerability were recorded throughout the study. Results Fifty-three participants were enrolled and completed the study. Mean age was 56 years and 66 percent were White, 17 percent were Black, 8 percent were Hispanic, 6 percent were Asian/Pacific Islander, and 81 percent had moderate photodamage. At Week 12, significant mean percent improvements from baseline were demonstrated in erythema (50%), dullness (44%), texture (52%), pore size (23%), and uneven pigmentation (21%; all p<.0001). Significant GSQI improvements from baseline were observed at Week 12 (39%; p<0.0001). Significant mean reductions from baseline in skin surface sebum were demonstrated at Week 12 (-38%; p<0.0001). All adverse events (AEs) were mild and transient. Conclusion A novel serum comprised of plant-based adaptogens, demonstrated improvements from baseline in the appearance of erythema, dullness, texture, pore size, uneven pigmentation, and global skin quality over 12 weeks. Participants reported high levels of satisfaction, with mild, transient AEs reported.
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Affiliation(s)
- Zoe Diana Draelos
- Dr. Draelos is with Dermatology Consulting Services PLLC in High Point, North Carolina
| | - Pearl E. Grimes
- Dr. Grimes is with The Grimes Center of Medical and Aesthetic Dermatology and the Vitiligo and Pigmentation Institute of Southern California in Los Angeles, California
| | | | - Diane B. Nelson
- Ms. Nelson is with Skinbetter Science, a Dermatological Beauty brand of L'Oréal USA, Inc., in Phoenix, Arizona
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Draelos ZD, Grimes PE, Watchmaker J, Nelson DB. Gene Expression Analysis of a Topical Serum Comprised of Plant-based Adaptogens Developed to Support Homeostasis and Skin Quality. THE JOURNAL OF CLINICAL AND AESTHETIC DERMATOLOGY 2024; 17:43-46. [PMID: 38444426 PMCID: PMC10911264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
Objective A topical serum comprised of plant-based adaptogens was purposefully developed to support the ability of the skin to adapt and achieve balance. The study described herein evaluated changes in the expression of target genes related to skin homeostasis following topical exposure. Methods Utilizing an in vitro epidermal skin model, quantitative polymerase chain reaction (qPCR) analysis of gene expression was conducted following 48-hour exposure to 15μL of the study product (MYS serum) to the surface of each tissue (N=4). Biomarkers that play a key role in skin homeostasis were analyzed: Aryl hydrocarbon receptor (AhR), chloride channel accessory 2 (CLCA2), metallothionein 1A (MT1A), 1F (MT1F), and 1G (MT1G), and thioredoxin reductase 1 (TXNRD1). Statistically significant changes were calculated using unpaired t-test analysis (p<0.05) versus control (saline). A linear Fold Change (FC) value >2 was considered statistically significant. Results An 85 percent (FC=1.85) increase in expression of AhR vs. control occurred following exposure to MYS serum indicating enhanced support of cellular and epidermal homeostasis, and the skin barrier's response to stress. Statistically significant increases in expression occurred with TXNRD1 (293%; FC=3.93), MT1A (307%; FC=4.07), MT1F (529%; FC=6.29), and MT1G (163%; FC=12.63) vs. control, indicating support of skin's adaptive response to stress and immune homeostasis. Significantly decreased levels of CLCA2 were demonstrated (69%; FC=-3.24) indicating inhibition of oxidative stress-induced senescence. Conclusion Utilizing an in vitro epidermal skin model, a serum comprised of plant-based adaptogens demonstrated changes in the expression of target genes that play important roles in skin's ability to respond to stress and achieve homeostasis.
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Affiliation(s)
- Zoe Diana Draelos
- Dr. Draelos is with Dermatology Consulting Services PLLC in High Point, North Carolina
| | - Pearl E. Grimes
- Dr Grimes is with The Grimes Center of Medical and Aesthetic Dermatology and the Vitiligo and Pigmentation Institute of Southern California in Los Angeles, California
| | | | - Diane B. Nelson
- Ms. Nelson is with Skinbetter Science, a Dermatological Beauty brand of L'Oréal USA, Inc. in Phoenix, Arizona
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Youssef FS, Ramadan MF, Echeverria Moran V, Aremu AO, Mamadalieva NZ. Editorial: Potential of natural products as drug leads possessing antioxidant and anti-aging properties. Front Pharmacol 2022; 13:1094950. [PMID: 36569304 PMCID: PMC9782410 DOI: 10.3389/fphar.2022.1094950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 11/23/2022] [Indexed: 12/13/2022] Open
Affiliation(s)
- Fadia S. Youssef
- Department of Pharmacognosy, Faculty of Pharmacy, Ain-Shams University, Cairo, Egypt,*Correspondence: Fadia S. Youssef,
| | - Mohamed Fawzy Ramadan
- Department of Clinical Nutrition, Faculty of Applied Medical Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Valentina Echeverria Moran
- Facultad de Medicina, Universidad San Sebastián, Concepción, Chile,Research and Development Service, Bay Pines VA Healthcare System, Bay Pines, FL, United States
| | - Adeyemi O. Aremu
- School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal, Durban, South Africa,Indigenous Knowledge Systems Centre, Faculty of Natural and Agricultural Sciences, North-West University, Mmabatho, South Africa
| | - Nilufar Z. Mamadalieva
- S. Yu. Yunusov Institute of the Chemistry of Plant Substances, Academy of Sciences Republic of Uzbekistan (UzAS), Tashkent, Uzbekistan
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Song C, Lorz LR, Lee J, Cho JY. In Vitro Photoprotective, Anti-Inflammatory, Moisturizing, and Antimelanogenic Effects of a Methanolic Extract of Chrysophyllum lucentifolium Cronquist. PLANTS 2021; 11:plants11010094. [PMID: 35009097 PMCID: PMC8747116 DOI: 10.3390/plants11010094] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 12/17/2021] [Accepted: 12/24/2021] [Indexed: 12/20/2022]
Abstract
UVB exposure causes DNA mutation and ROS generation, which lead to skin photoaging, skin wrinkling, skin sagging, and uneven skin pigmentation. ROS activate the NF-κB and MAPK signaling pathways leading to production of inflammatory molecules such as COX-2, collagen-degrading proteins such as matrix metalloproteinases (MMPs), and moisture-deficiency-related proteins such as hyaluronidases (HYALs). UVB exposure also induces irregular skin pigmentation though melanin overproduction, related to CREB transcription factor activity and transcription of melanogenesis genes. Here, we demonstrate that Chrysophyllum lucentifolium methanol extract (Cl-ME) has antioxidant activity; it dose-dependently decreased the expression of COX-2, MMP-1, MMP-9, HYAL-1, and HYAL-4 by downregulating the NF-κB (IKKα/β, IκBα) and MAPK (ERK, JNK, and p38) pathways and increased the expression of Col1a1, which encodes a protein important for maintaining skin elasticity. Cl-ME also showed promising antimelanogenic activity by decreasing the expression of CREB, a transcription factor, which in turn inhibited the expression of genes encoding tyrosinase, MITF, TYRP1, and TYRP2. In summary, a methanol extract of C. lucentifolium exhibited antiphotoaging and antimelanogenic activity and could be useful in the cosmeceutical industry.
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Affiliation(s)
- Chaoran Song
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon 16419, Korea; (C.S.); (L.R.L.)
| | - Laura Rojas Lorz
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon 16419, Korea; (C.S.); (L.R.L.)
| | - Jongsung Lee
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon 16419, Korea; (C.S.); (L.R.L.)
- Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon 16419, Korea
- Department of Biocosmetics, Sungkyunkwan University, Suwon 16419, Korea
- Correspondence: (J.L.); (J.Y.C.); Tel.: +82-31-290-7862 (J.L.); +82-31-290-7868 (J.Y.C.)
| | - Jae Youl Cho
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon 16419, Korea; (C.S.); (L.R.L.)
- Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon 16419, Korea
- Department of Biocosmetics, Sungkyunkwan University, Suwon 16419, Korea
- Correspondence: (J.L.); (J.Y.C.); Tel.: +82-31-290-7862 (J.L.); +82-31-290-7868 (J.Y.C.)
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Quality Distinguish of Red Ginseng from Different Origins by HPLC–ELSD/PDA Combined with HPSEC–MALLS–RID, Focus on the Sugar-Markers. SEPARATIONS 2021. [DOI: 10.3390/separations8110198] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Red ginseng (RG) has been extensively utilized in Asian countries due to its pharmacological effects. For the quality evaluation of RG, small molecules, such as ginsenosides, have been widely considered as candidates of its quality markers (Q-markers), and various analytical techniques have been developed in order to identify these compounds. However, despite the efforts to analyze the hydrophobic constituents, it is worth pointing out that about 60% of the mass of RG is made of carbohydrates, including mono-, oligo- and polysaccharides. Consequently, the quality differentiation and identification of RG from the perspective of sugar-markers should be focused. High performance liquid chromatography and evaporative light scattering detector (HPLC–ELSD) method for the determination of disaccharides in RG was established. Furthermore, high performance size exclusion chromatography–multi-angle laser light scattering–refractive index detector (HPSEC–MALLS–RID) for the determination of molecular weight and high performance liquid chromatography photodiode array (HPLC–PDA) for the determination of compositional monosaccharides in RG polysaccharides were also established. HPLC–ELSD/PDA combined with HPSEC–MALLS–RID could be used to determine the contents of disaccharides, molecular weights, and compositional monosaccharides of RG polysaccharides, which could be used for quality control, and this is a new view on the sugar marker to quality differentiation of various origins of RG.
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Choi SH, Won KJ, Lee R, Cho HS, Hwang SH, Nah SY. Wound Healing Effect of Gintonin Involves Lysophosphatidic Acid Receptor/Vascular Endothelial Growth Factor Signaling Pathway in Keratinocytes. Int J Mol Sci 2021; 22:10155. [PMID: 34576317 PMCID: PMC8467330 DOI: 10.3390/ijms221810155] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/14/2021] [Accepted: 09/17/2021] [Indexed: 12/18/2022] Open
Abstract
Gintonin, a novel compound of ginseng, is a ligand of the lysophosphatidic acid (LPA) receptor. The in vitro and in vivo skin wound healing effects of gintonin remain unknown. Therefore, the objective of this study was to investigate the effects of gintonin on wound healing-linked responses, especially migration and proliferation, in skin keratinocytes HaCaT. In this study, 2,3-bis-(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide assay, Boyden chamber migration assay, scratch wound healing assay, and Western blot assay were performed. A tail wound mouse model was used for the in vivo test. Gintonin increased proliferation, migration, and scratch closure in HaCaT cells. It also increased the release of vascular endothelial growth factor (VEGF) in HaCaT cells. However, these increases, induced by gintonin, were markedly blocked by treatment with Ki16425, an LPA inhibitor, PD98059, an ERK inhibitor, 1,2-Bis(2-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid tetrakis (acetoxymethyl ester), a calcium chelator, and U73122, a PLC inhibitor. The VEGF receptor inhibitor axitinib also attenuated gintonin-enhanced HaCaT cell proliferation. Gintonin increased the phosphorylation of AKT and ERK1/2 in HaCaT cells. In addition, gintonin improved tail wound healing in mice. These results indicate that gintonin may promote wound healing through LPA receptor activation and/or VEGF release-mediated downstream signaling pathways. Thus, gintonin could be a beneficial substance to facilitate skin wound healing.
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Affiliation(s)
- Sun-Hye Choi
- Ginsentology Research Laboratory and Department of Physiology, College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea; (S.-H.C.); (R.L.); (H.-S.C.)
| | - Kyung-Jong Won
- Department of Physiology and Medical Science, School of Medicine, Konkuk University, Seoul 05029, Korea;
| | - Rami Lee
- Ginsentology Research Laboratory and Department of Physiology, College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea; (S.-H.C.); (R.L.); (H.-S.C.)
| | - Han-Sung Cho
- Ginsentology Research Laboratory and Department of Physiology, College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea; (S.-H.C.); (R.L.); (H.-S.C.)
| | - Sung-Hee Hwang
- Department of Pharmaceutical Engineering, College of Health Sciences, Sangji University, Wonju 26339, Korea
| | - Seung-Yeol Nah
- Ginsentology Research Laboratory and Department of Physiology, College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea; (S.-H.C.); (R.L.); (H.-S.C.)
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Sebastia-Saez D, Benaouda F, Lim CH, Lian G, Jones S, Chen T, Cui L. Numerical analysis of the strain distribution in skin domes formed upon the application of hypobaric pressure. Skin Res Technol 2021; 27:948-958. [PMID: 33822382 DOI: 10.1111/srt.13047] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 03/11/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Suction cups are widely used in applications such as in measurement of mechanical properties of skin in vivo, in drug delivery devices or in acupuncture treatment. Understanding mechanical response of skin under hypobaric pressure is of great importance for users of suction cups. The aim of this work is to predict the hypobaric pressure induced 3D stretching of the skin. METHODS Experimental skin tensile tests were carried out for mechanical property characterization. Both linear elasticity and hyperelasticity parameters were determined and implemented in Finite Element modelling. Skin suction tests were performed in both experiments and FEM simulations for model validation. 3D skin stretching is then visualized in detail in FEM simulations. RESULTS The simulations showed that the skin was compressed consistently along the thickness direction, leading to reduced thickness. At the center of the dome, the radial and angular strain decreases from the top surface to the bottom surface, although always in tension. Hyperelasticity modelling showed superiority over linear elasticity modelling while predicting the strain distribution because the stretch ratio reaches values exceeding the initial linear elastic stage of the stress-strain curve for skin. CONCLUSION Hyperelasticity modelling is an effective approach to predict the 3D strain distribution, which paves a way to accurately design safe commercial products that interface with the skin.
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Affiliation(s)
- Daniel Sebastia-Saez
- Department of Chemical and Process Engineering, University of Surrey, Surrey, UK
| | - Faiza Benaouda
- Institute for Pharmaceutical Science, King's College London, London, UK
| | - Chui Hua Lim
- Institute for Pharmaceutical Science, King's College London, London, UK
| | | | - Stuart Jones
- Institute for Pharmaceutical Science, King's College London, London, UK
| | - Tao Chen
- Department of Chemical and Process Engineering, University of Surrey, Surrey, UK
| | - Liang Cui
- Department of Civil and Environmental Engineering, University of Surrey, Surrey, UK
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