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De Tollenaere M, Meunier M, Lapierre L, Chapuis E, Guilleret A, Harrison I, Jean T, Rannou A, Scandolera A, Reynaud R. High molecular weight hyaluronic acid vectorised with clay provides long-term hydration and reduces skin brightness. Skin Res Technol 2024; 30:e13672. [PMID: 38591218 PMCID: PMC11002775 DOI: 10.1111/srt.13672] [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: 03/07/2024] [Accepted: 03/11/2024] [Indexed: 04/10/2024]
Abstract
BACKGROUND Hyaluronic acid (HA) is a widely used active cosmetic ingredient. Its multiple skin care benefits are modulated by its molecular weight. Low molecular weight (LMW) HA can penetrate the skin, but high molecular weight (HMW) HA remains at the surface. Here, we assessed how vectorization of HMW HA with bentonite clay-achieved with an innovative technology-enhances its cosmetic and hydrating properties. MATERIALS AND METHODS The two HA forms were applied to skin explants; their penetration and smoothing effects were monitored by Raman spectroscopy and scanning electron microscopy. The two forms were biochemically characterised by chromatography, enzyme sensitivity assays, and analysis of Zeta potential. Cosmetics benefits such as, the smoothing effect of vectorised-HA was assessed in ex vivo experiments on skin explants. A placebo-controlled clinical study was finally conducted applying treatments for 28 days to analyse the final benefits in crow's feet area. RESULTS Raman spectroscopy analysis revealed native HMW HA to accumulate at the surface of skin explants, whereas vectorised HMW HA was detected in deeper skin layers. This innovative vectorisation process changed the zeta potential of vectorised HMW HA, being then more anionic and negative without impacting the biochemical structure of native HA. In terms of cosmetic benefits, following application of vectorised HMW HA ex vivo, the skin's surface was visibly smoother. This smoothing was clinically confirmed, with a significant reduction in fine lines. CONCLUSION The development of innovative process vectorising HMW HA allowed HMW HA penetration in the skin. This enhanced penetration extends the clinical benefits of this iconic cosmetic ingredient.
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Baskar Murthy A, Palaniappan V, Karthikeyan K. Aluminium in dermatology - Inside story of an innocuous metal. Indian J Dermatol Venereol Leprol 2024; 0:1-9. [PMID: 38595024 DOI: 10.25259/ijdvl_188_2023] [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: 02/20/2023] [Accepted: 07/23/2023] [Indexed: 04/11/2024]
Abstract
Aluminium, the third most abundant element in the earth's crust, was long considered virtually innocuous to humans but has gained importance in the recent past. Aluminium is ubiquitous in the environment, with various sources of exposure like cosmetics, the food industry, occupational industries, the medical field, transport and electronics. Aluminium finds its utility in various aspects of dermatology as an effective haemostatic agent, anti-perspirant and astringent. Aluminium has a pivotal role to play in wound healing, calciphylaxis, photodynamic therapy and vaccine immunotherapy with diagnostic importance in Finn chamber patch testing and confocal microscopy. The metal also finds significance in cosmetic procedures like microdermabrasion and as an Nd:YAG laser component. It is important to explore the allergic properties of aluminium, as in contact dermatitis and vaccine granulomas. The controversial role of aluminium in breast cancer and breast cysts also needs to be evaluated by further studies.
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Affiliation(s)
- Aravind Baskar Murthy
- Department of Dermatology, Venereology and Leprosy, Sri Manakula Vinayagar Medical College and Hospital, Madagadipet, Puducherry, India
| | - Vijayasankar Palaniappan
- Department of Dermatology, Venereology and Leprosy, Sri Manakula Vinayagar Medical College and Hospital, Madagadipet, Puducherry, India
| | - Kaliaperumal Karthikeyan
- Department of Dermatology, Venereology and Leprosy, Sri Manakula Vinayagar Medical College and Hospital, Madagadipet, Puducherry, India
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Kim GJ, Kim D, Lee KJ, Kim D, Chung KH, Choi JW, An JH. Effect of Nano-Montmorillonite on Osteoblast Differentiation, Mineral Density, and Osteoclast Differentiation in Bone Formation. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E230. [PMID: 32013042 PMCID: PMC7075198 DOI: 10.3390/nano10020230] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 01/19/2020] [Accepted: 01/26/2020] [Indexed: 12/14/2022]
Abstract
Calcium-type montmorillonite, a phyllosilicate mineral, has diverse health benefits when introduced into the gastrointestinal tract or applied to the skin. However, the predominant use of this layered material has thus far been in traditional industries, despite its potential application in the pharmaceutical industry. We investigated the effects and mechanism of nano-montmorillonite (NM) on osteoblast and osteoclast differentiation in vivo and in vitro. We examined the osteogenic effects of NM with high calcium content (3.66 wt%) on alkaline phosphatase (ALP) activity, mineralization, bone microarchitecture, and expression level of osteoblast and osteoclast related genes in Ca-deficient ovariectomized (OVX) rats. Micro-computed tomography of OVX rats revealed that NM attenuated the low-Ca-associated changes in trabecular and cortical bone mineral density. It improved ALP activity and mineralization, as well as the expression of osteoblast and osteoclast differentiation associated genes. NM also activated the expression of runt-related transcription factor 2, osteocalcin, bone morphogenetic protein 2, and type 1 collagen via phosphorylated small mothers against decapentaplegic homolog 1/5/8 signaling. Further, NM repressed the expression of receptor activator for cathepsin K, nuclear factor kappa-B ligand and tartrate-resistant acid phosphatase. Therefore, NM inhibits osteoclastogenesis, stimulates osteoblastogenesis, and alleviates osteoporosis.
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Affiliation(s)
- Gyeong-Ji Kim
- Department of Food and Nutrition, KC University, Seoul 07661, Korea;
- Department of Biomedical Engineering, Sogang University, Seoul 04107, Korea
| | - Daniel Kim
- Advanced Geo-materials R&D Department, Pohang Branch, Korea Institute of Geoscience and Mineral Resources, Pohang 37559, Korea;
| | - Kwon-Jai Lee
- Department of Advanced Materials Engineering, Daejeon University, Daejeon 34520, Korea;
| | - Daeyoung Kim
- Department of Nanomaterials Science and Engineering, University of Science and Technology, Daejeon 34113, Korea;
| | - Kang-Hyun Chung
- Department of Food Science and Technology, Seoul National University of Science & Technology, Seoul 01811, Korea;
| | - Jeong Woo Choi
- Department of Biomedical Engineering, Sogang University, Seoul 04107, Korea
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107l, Korea
| | - Jeung Hee An
- Department of Food and Nutrition, KC University, Seoul 07661, Korea;
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Mahmoudi M, Adib-Hajbaghery M, Mashaiekhi M. Comparing the effects of Bentonite & Calendula on the improvement of infantile diaper dermatitis: A randomized controlled trial. Indian J Med Res 2016; 142:742-6. [PMID: 26831423 PMCID: PMC4774071 DOI: 10.4103/0971-5916.174567] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND & OBJECTIVES Infantile diaper dermatitis is a common, acute inflammatory reaction of the skin around diaper among infants. This study was undertaken to compare the effect of topical application of Bentonite and Calendula creams on the improvement of infantile diaper dermatitis. METHODS This double blind randomized controlled trial was undertaken on 100 patients of infantile diaper dermatitis. The 100 participants were randomly assigned into two groups of 50 each, and were prescribed the coded medicine. The mothers were trained to apply the cream and level of improvement was judged by observing the affected area on the first visit and then after three days of receiving treatment. RESULTS The mean age of infants was 6.45±5.53 months in Calendula group and 7.35±6.28 months in Bentonite group. Overall, 88 per cent of lesions in the Bentonite group started improving in the first six hours while this rate was 54 per cent in Calendula group (P<0.001). The risk ratio for the improvement in the first six hours was 2.99 folds in the Bentonite group. Also, lesions in 86 per cent infants in the Bentonite group and 52 per cent in the Calendula group were completely improved in the first three days after treatment (P<0.001). INTERPRETATION & CONCLUSIONS Our results showed that in comparison with Calendula, Bentonite had faster healing effect and was more effective on the improvement of infantile diaper dermatitis (IRCT ID: IRCT 2012112811593N1).
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Affiliation(s)
| | - Mohsen Adib-Hajbaghery
- Department of Medical-Surgical Nursing, Faculty of Nursing & Midwifery, Kashan, Kashan, Iran
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Adib-Hajbaghery M, Mahmoudi M, Mashaiekhi M. Shampoo-Clay Heals Diaper Rash Faster Than Calendula Officinalis. Nurs Midwifery Stud 2014. [DOI: 10.17795/nmsjournal14180] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Abstract
Hand eczema is often a chronic, multifactorial disease. It is usually related to occupational or routine household activities. Exact etiology of the disease is difficult to determine. It may become severe enough and disabling to many of patients in course of time. An estimated 2-10% of population is likely to develop hand eczema at some point of time during life. It appears to be the most common occupational skin disease, comprising 9-35% of all occupational diseases and up to 80% or more of all occupational contact dermatitis. So, it becomes important to find the exact etiology and classification of the disease and to use the appropriate preventive and treatment measures. Despite its importance in the dermatological practice, very few Indian studies have been done till date to investigate the epidemiological trends, etiology, and treatment options for hand eczema. In this review, we tried to find the etiology, epidemiology, and available treatment modalities for chronic hand eczema patients.
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Affiliation(s)
| | | | - Rahul Gupta
- Department of Dermatology, SMS Medical College, Jaipur, India
| | - Puneet Agarwal
- Department of Dermatology, Mahatma Gandhi Institute of Medical Sciences, Jaipur, India
| | - Sheetal Napalia
- Department of Dermatology, Mahatma Gandhi Institute of Medical Sciences, Jaipur, India
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Adib-Hajbaghery M, Mahmoudi M, Mashaiekhi M. Shampoo-clay heals diaper rash faster than calendula officinalis. Nurs Midwifery Stud 2014; 3:e14180. [PMID: 25414900 PMCID: PMC4228529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Revised: 09/07/2013] [Accepted: 09/08/2013] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Diaper rash is one of the most common skin disorders of infancy and childhood. Some studies have shown that Shampoo-clay was effective to treat chronic dermatitis. Then, it is supposed that it may be effective in diaper rash; however, no published studies were found in this regard. OBJECTIVES This study aimed to compare the effects of Shampoo-clay (S.C) and Calendula officinalis (C.O) to improve infantile diaper rash. PATIENTS AND METHODS A randomized, double blind, parallel controlled, non-inferiority trial was conducted on 60 outpatient infants referred to health care centers or pediatric clinics in Khomein city and diagnosed with diaper rash. Patients were randomly assigned into two treatment groups including S.C group (n = 30) and C.O group (n = 30) by using one to one allocation ratio. The rate of complete recovery in three days was the primary outcome. Data was collected using a checklist and analyzed using t-test, Chi-square and Fisher's exact tests and risk ratio. RESULTS Totally, 93.3% of lesions in the S.C group healed in the first 6 hours, while this rate was 40% in C.O group (P < 0.001). The healing ratio for improvement in the first 6 hours was 7 times more in the S.C group. In addition, 90% of infants in the SC group and 36.7% in the C.O group were improved completely in the first 3 days (P < 0.001). CONCLUSIONS S.C was effective to heal diaper rash, and also had faster effects compared to C.O.
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Affiliation(s)
- Mohsen Adib-Hajbaghery
- Trauma Nursing Research Center, Kashan University of Medical Sciences, Kashan, IR Iran,Corresponding author: Mohsen Adib-Hajbaghery, Trauma Nursing Research Center, Kashan University of Medical Sciences, Kashan, IR Iran. Tel: +98-3615550021, Fax: +98-3615554999, E-mail:
| | - Mansoreh Mahmoudi
- Department of Medical-Surgical Nursing, Faculty of Nursing and Midwifery, Arak University of Medical Sciences, Arak, IR. Iran
| | - Mahdi Mashaiekhi
- Department of Pediatrics, Emam Khomeini Hospital, Khomein, Markazi Province, IR Iran
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Broding HC, van der Pol A, de Sterke J, Monsé C, Fartasch M, Brüning T. In vivo monitoring of epidermal absorption of hazardous substances by confocal Raman micro-spectroscopy. J Dtsch Dermatol Ges 2011; 9:618-27. [PMID: 21790981 DOI: 10.1111/j.1610-0387.2011.07657.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Presently, percutaneous absorption of potentially hazardous chemicals in humans can only be assessed in animal experiments, in vitro, or predicted mathematically. Our aim was to demonstrate the proof-of-principle of a novel quantitative in vivo assay for percutaneous absorption: confocal Raman micro-spectroscopy (CRS). The advantages and limitations of CRS for health risk assessments are discussed. PATIENTS AND METHODS 2-butoxyethanol, toluene, and pyrene were applied in pure form, diluted in water, or in ethanol on the skin of three healthy volunteers. CRS measurements were done following application for 15 min and 3 hours. The concentrations of the three substances as a function of distance to the skin surface were calculated and further analyzed with regard to mass transport into the stratum corneum (μg/cm(2)) and the flux through the stratum corneum (μg/cm(2)h). The results were compared with the available data from literature. RESULTS Considering the preliminary nature of these data, good accordance with data from the literature was observed. In addition, we observed that 2-butoxyethanol penetrates markedly faster when dissolved in water as compared to ethanol. This observation is also in agreement with previous results. CONCLUSIONS CRS has the potential to provide fast, accurate and reliable results for advanced studies of in vivo percutaneous absorption kinetics of hazardous substances in human skin. This will require further research with other substances and under differing conditions.
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Affiliation(s)
- Horst Christoph Broding
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance-Institute of the Ruhr-University Bochum (IPA), Bochum, Germany.
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Effectiveness of skin protection creams in the prevention of occupational dermatitis: results of a randomized, controlled trial. Int Arch Occup Environ Health 2008; 82:653-62. [PMID: 18972125 DOI: 10.1007/s00420-008-0377-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2007] [Accepted: 09/23/2008] [Indexed: 01/17/2023]
Abstract
OBJECTIVES The aim of the trial was to investigate whether the publicized effects of skin protection creams can be replicated in a real occupational setting during activities that expose the skin. METHODS A prospective, randomized, four-tailed controlled pilot trial was performed to compare the effect of skin protection and skin care alone or in combination with cleansing against a control group (only cleansing). Two branches were selected for the investigation: the building industry and the timber industry. A total of 1,006 workers from these two branches were recruited, and out of these 485 workers were examined longitudinally for at least three time points over 1 year (lost for follow-up: 430 workers, exclusion: 91 workers). At each time point, as a primary outcome measure, we assessed the condition of the skin at both hands in a blinded manner and the individual was assigned to one of the following categories: no eczema, mild, moderate and severe eczema. As a secondary outcome measure, the worker's transepidermal water loss (TEWL) was measured under standardized conditions at the back of both hands. In addition, the workers were asked to evaluate their skin condition during the study. RESULTS With regard to differences in the occurrence of eczemas, we found only in workers in building industry without application of skin protection or skin care creams a statistical significant increase in the incidence between the first and the second visit and a statistical significant decrease in the incidence between the second and third visit. When evaluating the secondary outcome-measurement changes in the TEWL values, an improvement was found for the group skin protection and skin care in combination and by skin care alone. Females in the timber industry started with better TEWL values than males, which may be due to better overall skin care. In this group we found an improvement for the group skin protection and skin care in combination and by skin protection alone. For skin protection alone, we noted a slight, but not significant improvement in all other groups. The subjective improvement of skin condition was reported from the participants who used skin protection and skin care in combination. CONCLUSIONS Taking all these secondary-outcome measurements together, the main result of this study was that skin protection creams alone have a small effect on the skin barrier in workers in the building and timber industries compared with skin care alone or in combination with skin protection.
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Kütting B, Drexler H. Effectiveness of skin protection creams as a preventive measure in occupational dermatitis: a critical update according to criteria of evidence-based medicine. Int Arch Occup Environ Health 2003; 76:253-9. [PMID: 12684811 DOI: 10.1007/s00420-003-0437-6] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2002] [Accepted: 01/10/2003] [Indexed: 12/01/2022]
Abstract
OBJECTIVES This study attempts to assess the evidence of the generally recommended three-step programme of skin protection in the prevention of occupational skin disease. METHODS The following clinical questions, representative of critical appraisal of this preventive measurement, were generated: (1) Can a skincare regimen effectively reduce or eliminate work-related poor skin conditions? (2) Do protective creams prevent harmful substances from penetrating and adhering to the skin? (3) Is the differentiation between pre-exposure and post-exposure products justified by reliable data? Answers were generated according to the method used in evidence-based medicine by searching the literature, critically appraising the results and applying the results to the clinical questions. For our search we decided to use PubMed as the most convenient access to Medline and because, in contrast to other databases, this access is available free of charge. RESULTS To investigate the efficacy of barrier creams as pre-exposure skin protectors various in vitro and in vivo test methods have been developed. Over the past years the test techniques have been improved in order to adopt a real workplace situation. Efforts for standardisation of evaluation criteria have been made, too. Nevertheless, there is a lack of placebo-controlled, randomised clinical trials evaluating the benefit of these products in the prevention of occupational contact dermatitis under real workplace conditions. The literature data are conflicting; some publications report on the positive aspects of skin protection, whereas others stress the negative ones. CONCLUSION Not enough data have been accumulated for one to prove the benefit of skin protection measures under real workplace condition. Up to now, it is almost unclear if the various in vitro and in vivo methods used are suitable to simulate real workplace conditions and if these test results can be related to real occupational exposure. For the evidence-based recommendation of skin protection, further studies, especially under daily working conditions evaluating the contribution of each single element of skincare programme (products, frequency of application and education programme) are needed.
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Affiliation(s)
- Birgitta Kütting
- Institute for Occupational, Social and Environmental Medicine, University of Erlangen-Nuremberg, Schillerstrasse 25/29, 91054 Erlangen, Germany.
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