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Yu H, Zhang G, You M, Shi X, Lu S, Tang Z, Yin H, Zhang Y, Chen Q. Herbal small molecule-based low/medium internal phase supramolecular gel emulsion for diabetic wound healing. J Colloid Interface Sci 2024; 671:270-282. [PMID: 38810341 DOI: 10.1016/j.jcis.2024.05.090] [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: 03/05/2024] [Revised: 05/13/2024] [Accepted: 05/14/2024] [Indexed: 05/31/2024]
Abstract
It remains a big challenge to fabricate low / medium internal phase gel emulsion for the safe wound dressing with low stimulation to the skin. Herein, utilizing the self-assembly and gelation of amphiphilic herbal small molecule-glycyrrhizic acid (GA) derived from traditional Chinese medicine, a new type of supramolecular gel emulsion (SGE) with antibacterial activity and low / medium internal phase was proposed. In the SGE, the oil droplets were stabilized by the nanofibers self-assembled from GA, and the SGE was formed by the supramolecular assembly of GA nanofibers in the presence of Pickering emulsions. As a result, under low / medium internal phase (φ = 30-50 %), SGEs could be readily prepared. Antibacterial tests demonstrated that the growth of gram-positive Staphylococcus aureus (S. aureus) and gram-negative Escherichia coli (E. coli) could be effectively inhibited by the SGE. Additionally, compared to high internal phase SGE, SGE with φ = 50 % displayed lower cytotoxicity and a positive impact on the healing process of infectious diabetic wounds. This work provided a novel approach for constructing low / medium internal phase gel emulsion via herbal small molecule-based supramolecular assembly.
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Affiliation(s)
- Hui Yu
- Joint Research Centre on Medicine, The Affiliated Xiangshan Hospital of Wenzhou Medical University, Ningbo, Zhejiang 315700, China; Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, China
| | - Guoxin Zhang
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, China; Postgraduate training base Alliance of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Min You
- Joint Research Centre on Medicine, The Affiliated Xiangshan Hospital of Wenzhou Medical University, Ningbo, Zhejiang 315700, China; Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, China
| | - Xinlei Shi
- Joint Research Centre on Medicine, The Affiliated Xiangshan Hospital of Wenzhou Medical University, Ningbo, Zhejiang 315700, China; Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, China
| | - Shaoping Lu
- Joint Research Centre on Medicine, The Affiliated Xiangshan Hospital of Wenzhou Medical University, Ningbo, Zhejiang 315700, China; Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, China
| | - Ziqing Tang
- Joint Research Centre on Medicine, The Affiliated Xiangshan Hospital of Wenzhou Medical University, Ningbo, Zhejiang 315700, China; Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, China
| | - Haiyan Yin
- Joint Research Centre on Medicine, The Affiliated Xiangshan Hospital of Wenzhou Medical University, Ningbo, Zhejiang 315700, China; Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, China
| | - Yitian Zhang
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, China; Postgraduate training base Alliance of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Qiang Chen
- Joint Research Centre on Medicine, The Affiliated Xiangshan Hospital of Wenzhou Medical University, Ningbo, Zhejiang 315700, China; Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, China.
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Alves LGS, Vila Nova BG, Assunção RG, da Silva LCT, Sá GC, Silva LDS, Silva MA, de Santana AVS, de Jesus TR, Lucena FRC, da Silva MADS, da Silva LCN, Serra ICPB, Abreu AG. Melaleuca alternifolia essential oil in a natural product-based formulation: Antimicrobial and healing effects in Staphylococcus aureus-infected wounds. Eur J Pharm Biopharm 2024; 202:114416. [PMID: 39013494 DOI: 10.1016/j.ejpb.2024.114416] [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: 03/14/2024] [Revised: 07/09/2024] [Accepted: 07/12/2024] [Indexed: 07/18/2024]
Abstract
Owing to its exposed nature, the skin can be injured by various factors, including by Staphylococcus aureus, which inhabits its innate microbiota. Treatment of infected wounds presents an important challenge, making it imperative to develop new treatment options. Plant-derived formulations, such as those containing Melaleuca alternifolia essential oil (MaEO), are used for wound treatment because of their healing, anti-inflammatory, and antimicrobial properties. This study presents a cream containing 2% MaEO (2% CMa) and evaluates its effects in an S. aureus-infected wound murine model. The 2% CMa was subjected to quality control testing and pH and analysis of density, organoleptic characteristics, and microbiological effects. The quality control parameters all revealed the good stability of the 2% CMa. The formulation strongly reduced the S. aureus ATCC 6538 colony-forming unit (CFU) count in an ex vivo porcine skin model. In the murine model, daily topical application of 2% CMa reduced the severity and size of S. aureus-infected wounds and the bacterial load. These effects may be due to the presence of terpinen-4-ol, which exhibits anti-inflammatory activity. Based on these findings, the formulation exhibits good quality and safety. We suggest the topical application of this formulation, which exhibited an antimicrobial effect, as an interesting treatment strategy for wound healing.
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Affiliation(s)
- Lully Gabrielly Silva Alves
- Microbial Pathogenicity Laboratory, CEUMA University, São Luís, MA, Brazil; Pharmacy Laboratory, CEUMA University, São Luís, MA, Brazil
| | | | - Raissa Guará Assunção
- Microbial Pathogenicity Laboratory, CEUMA University, São Luís, MA, Brazil; Health Sciences Graduate Program, Biological and Health Sciences Center, Federal University of Maranhão, São Luís, Brazil
| | | | | | | | | | | | | | | | | | | | | | - Afonso Gomes Abreu
- Microbial Pathogenicity Laboratory, CEUMA University, São Luís, MA, Brazil; Health Sciences Graduate Program, Biological and Health Sciences Center, Federal University of Maranhão, São Luís, Brazil.
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Battisti MA, Constantino L, Argenta DF, Reginatto FH, Pizzol FD, Caon T, Campos AM. Nanoemulsions and nanocapsules loaded with Melaleuca alternifolia essential oil for sepsis treatment. Drug Deliv Transl Res 2024; 14:1239-1252. [PMID: 38227165 DOI: 10.1007/s13346-023-01458-w] [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] [Accepted: 10/12/2023] [Indexed: 01/17/2024]
Abstract
Sepsis represents a complex clinical syndrome that results from a harmful host response to infection. The infections most associated with sepsis are pneumonia, intra-abdominal infection, and urinary tract infection. Tea tree oil (TTO) has shown high antibacterial activity; however, it exhibits low aqueous solubility and high volatility, which have motivated its nanoencapsulation. In this study, the performance of nanoemulsions (NE) and nanocapsules (NC) loaded with TTO was compared. These systems were prepared by spontaneous emulsification and nanoprecipitation methods, respectively. Poly-ε-caprolactone or Eudragit® RS100 were tested as polymers for NCs whereas Tween® 80 or Pluronic® F68 as surfactants in NE preparation. Pluronic® F68 and Eudragit® RS100 resulted in more homogeneous and stable nanoparticles. In accelerated stability studies at 4 and 25 °C, both colloidal suspensions (NC and NE) were kinetically stable. NCs showed to be more stable to photodegradation and less cytotoxic than NEs. After sepsis induction by the cecal ligation and puncture (CLP) model, both NE and NC reduced neutrophil infiltration into peritoneal lavage (PL) and kidneys. Moreover, the systems increased group thiols in the kidney and lung tissue and reduced bacterial growth in PL. Taken together, both systems showed to be effective against injury induced by sepsis; however, NCs should be prioritized due to advantages in terms of cytotoxicity and physicochemical stability.
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Affiliation(s)
- Mariana Alves Battisti
- Postgraduate Program in Pharmacy (PGFAR), Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Campus Universitário, Trindade, 88040-900, Florianópolis, SC, Brazil
| | - Larissa Constantino
- Postgraduate Program in Pharmacy (PGFAR), Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Campus Universitário, Trindade, 88040-900, Florianópolis, SC, Brazil
| | - Débora Fretes Argenta
- Postgraduate Program in Pharmacy (PGFAR), Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Campus Universitário, Trindade, 88040-900, Florianópolis, SC, Brazil
| | - Flávio Henrique Reginatto
- Postgraduate Program in Pharmacy (PGFAR), Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Campus Universitário, Trindade, 88040-900, Florianópolis, SC, Brazil
| | - Felipe Dal Pizzol
- Laboratory of Experimental Pathophysiology, Postgraduate Program in Health Sciences, University of South Santa Catarina, Criciúma, Brazil
| | - Thiago Caon
- Postgraduate Program in Pharmacy (PGFAR), Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Campus Universitário, Trindade, 88040-900, Florianópolis, SC, Brazil
| | - Angela Machado Campos
- Postgraduate Program in Pharmacy (PGFAR), Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Campus Universitário, Trindade, 88040-900, Florianópolis, SC, Brazil.
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Kamiya H, Haraguchi A, Mitarai H, Yuda A, Wada H, Shuxin W, Ziqing R, Weihao S, Wada N. In vitro evaluation of the antimicrobial properties of terpinen-4-ol on apical periodontitis-associated bacteria. J Infect Chemother 2024; 30:306-314. [PMID: 37922985 DOI: 10.1016/j.jiac.2023.10.021] [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: 08/18/2023] [Revised: 10/12/2023] [Accepted: 10/29/2023] [Indexed: 11/07/2023]
Abstract
Manuka oil and tea tree oil are essential oils with known antibacterial properties that are believed to be caused by one main component: terpinen-4-ol. Terpinen-4-ol has potent antibacterial activity against caries-related microorganisms. However, few studies have investigated the antimicrobial effects of terpinen-4-ol on bacteria in apical periodontitis. Thus, the objective of the present study was to evaluate the antibacterial and antibiofilm potential of terpinen-4-ol against Enterococcus faecalis, Porphyromonas gingivalis, Prevotella intermedia, and Fusobacterium nucleatum, which have all been detected in apical periodontitis. The minimum inhibitory and minimum bactericidal concentrations of terpinen-4-ol were determined to assess its activity against biofilms. The minimum inhibitory concentration of terpinen-4-ol was 0.25% against E. faecalis and F. nucleatum, 0.05% against P. gingivalis, and 0.1% against P. intermedia. The minimum bactericidal concentration of terpinen-4-ol was 1.0% against E. faecalis, 0.2% against P. gingivalis and P. intermedia, and 0.5% against F. nucleatum. In the biofilm evaluations, all terpinen-4-ol-treated bacteria had significant reductions in biofilm viability compared with controls in experiments assessing attachment inhibitory activity. Furthermore, structural alterations and decreased bacterial cell clumping were observed under scanning electron microscopy, and significantly decreased cell survival was noted using fluorescence microscopy. Together, these results suggest that terpinen-4-ol is a potential antibacterial agent with bactericidal properties, and can also act on established biofilms.
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Affiliation(s)
- Harunobu Kamiya
- Department of General Dentistry, Division of Interdisciplinary Dentistry, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Akira Haraguchi
- Division of General Dentistry, Kyushu University Hospital, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
| | - Hiromi Mitarai
- Division of General Dentistry, Kyushu University Hospital, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Asuka Yuda
- Division of General Dentistry, Kyushu University Hospital, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Hiroko Wada
- Laboratory of Oral Pathology, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Wang Shuxin
- Department of General Dentistry, Division of Interdisciplinary Dentistry, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Ran Ziqing
- Department of General Dentistry, Division of Interdisciplinary Dentistry, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Sun Weihao
- Department of General Dentistry, Division of Interdisciplinary Dentistry, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Naohisa Wada
- Department of General Dentistry, Division of Interdisciplinary Dentistry, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
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Mansoor K, Aburjai T, Al-Mamoori F, Schmidt M. Plants with cosmetic uses. Phytother Res 2023; 37:5755-5768. [PMID: 37770185 DOI: 10.1002/ptr.8019] [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: 03/12/2023] [Revised: 08/16/2023] [Accepted: 09/11/2023] [Indexed: 10/03/2023]
Abstract
The use of plants as a source of active principles for cosmetics has significantly increased in the last few years. Safety, compatibility with all types of skin, fewer side effects, and availability are among the advantages of herbal cosmetics above synthetic ingredients. The present review aims to explore the most important plants used in cosmetics. A literature search was carried out in several electronic databases with the following phrases: skincare and plants; cosmetics and plants; natural and cosmetics; and natural and skincare. Furthermore, more detailed filters such as clinical studies, meta-analyses, and systemic reviews were applied to positive results. Various plants and plant extracts currently used in skin care, scaring, whitening, and aging, as well as in sun protection, acne, eczema, and others, have been included in this review. The effectiveness of these plants is based mainly on preclinical research, and to a lesser extent on clinical studies. Some plant extracts or oils have been tested clinically, such as onions, aloe, and tea tree oil, more than other plant extracts. Despite many studies on natural products to improve dermal needs, proper clinical cosmeceutical trials are much fewer than expected. Therefore, more clinical trials are needed to evaluate appropriate efficacy. Furthermore, new formulation technologies might enhance the cosmeceutical benefits, but more work is warranted.
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Affiliation(s)
- Kenza Mansoor
- Department of Pharmaceutical Medicinal Chemistry and Pharmacognosy, Faculty of Pharmacy and Medical Sciences, University of Petra, Amman, Jordan
| | - Talal Aburjai
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Jordan, Amman, Jordan
| | - Farah Al-Mamoori
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Zarqa University, Zarqa, Jordan
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Sokan-Adeaga AA, Sokan-Adeaga MA, Sokan-Adeaga ED, Oparaji AN, Edris H, Tella EO, Balogun FA, Aledeh M, Amubieya OE. Environmental toxicants and health adversities: A review on interventions of phytochemicals. J Public Health Res 2023; 12:22799036231181226. [PMID: 37440795 PMCID: PMC10334012 DOI: 10.1177/22799036231181226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Accepted: 04/28/2023] [Indexed: 07/15/2023] Open
Abstract
Toxicity arising from environmental contaminants has attracted global interest in the last few decades, due to the high morbidity and mortality associated with them. Efforts have been made to combat the consequential outcomes of environmental toxicity in humans through traditional remediation techniques and therapeutic measures which have been hampered by one or more limitations. Consequently, this scenario has triggered interest in the medicinal properties of phytochemicals. Thus, this review gives a succinct and in-depth elucidation of the various environmental contaminants and their toxicity effects on humans. It delves into the various classes of phytochemicals and their intervention roles. The study adopted a desk review of existing literatures from scientific reports and peer reviewed articles through triangulation of data sources. "Phytochemicals" are group of secondary metabolites obtained from plants with medicinal properties. These groups of compounds are included but not limited to flavonoids, tannins, saponins, alkaloids, cardenoloids, terpenoids, and phytosteroids. This review corroborates the prophylactic and therapeutics efficacy of these phytochemicals as anti-metastatic, anti-inflammatory, anti-aging, anti-oxidant, anti-microbial and live saving substances with empirical findings from several laboratory, clinical trials and epidemiologic studies. It conclude that given the wide range of medicinal properties of phytochemicals, there is an urgent need for its full optimization in the pharmaceutical industry and future studies should focus on identifying the bioactive molecules in these compounds and its effectiveness against mixer toxicity.
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Affiliation(s)
- Adewale Allen Sokan-Adeaga
- Department of Environmental Health
Science, Faculty of Public Health, College of Medicine, Lead City University,
Ibadan, Nigeria
| | - Micheal Ayodeji Sokan-Adeaga
- Department of Community Health and
Primary Health Care, Faculty of Clinical Sciences, College of Medicine, University
of Lagos, Lagos, Nigeria
| | - Eniola Deborah Sokan-Adeaga
- Department of Physiology, Faculty of
Basic Medical Sciences, College of Medicine, Ladoke Akintola University of
Technology (LAUTECH), Ogbomosho, Oyo State, Nigeria
| | | | - Hoseinzadeh Edris
- Incubation and Innovation Center, Saveh
University of Medical Sciences, Saveh, Iran
| | - Esther Oluwabukunola Tella
- Department of Environmental Health
Science, Faculty of Public Health, College of Medicine, Lead City University,
Ibadan, Nigeria
| | - Francis Adeniyi Balogun
- Department of Community Health, Faculty
of Public Health, College of Medicine, Lead City University, Ibadan, Nigeria
| | - Muhammad Aledeh
- College of Health, Psychology and
Social Care, University of Derby, Derby, United Kingdom
- Wiener Gesundheitsverbund, Psychiatric
Department, Klinik Donaustadt, Vienna, Austria
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Hugo Infante V, Maria Maia Campos P, Darvin M, Lohan S, Schleusener J, Schanzer S, Lademann J, Meinke M. Cosmetic Formulations with Melaleuca alternifolia Essential Oil for the Improvement of Photoaged Skin: A Double-Blind, Randomized, Placebo-Controlled Clinical Study. Photochem Photobiol 2023; 99:176-183. [PMID: 35668682 DOI: 10.1111/php.13660] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 05/29/2022] [Indexed: 01/25/2023]
Abstract
This aim of this study was to evaluate the penetration depth, antioxidant capacity and the clinical efficacy of Melaleuca alternifolia pure essential oil and in a nanoemulsion to prevent skin photoaging. For this, 2% of pure essential oil or 2% of this essential oil in a nanoemulsion were vehiculated in a formulation. The skin penetration was evaluated using confocal Raman microspectroscopy. The radical protection factor was evaluated using electron paramagnetic resonance spectroscopy. For a clinical study, 40 male participants, aged 18-28 years, were enrolled, being divided into three groups: vehicle formulation, M. alternifolia pure essential oil and M. alternifolia Nanoemulsion. All the participants also received a sunscreen SPF 50 to use during the day. Before and after 90 days of study, skin hydrolipidics and morphological characteristics were performed by skin imaging and biophysical techniques. The nanoemulsion presented a lower antioxidant capacity and a higher penetration through the stratum corneum, reaching the viable epidermis, improving the stratum granulosum morphology. The groups presented an increase in the papillary depth, improving in the dermis echogenicity and the collagen fibers. Melaleuca alternifolia essential provides the potential to improve photoaged skin, being the application of nanoemulsion able to reach deeper skin layers.
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Affiliation(s)
| | | | - Maxim Darvin
- Pharmaceutical Sciences, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Silke Lohan
- Pharmaceutical Sciences, University of Sao Paulo, Ribeirao Preto, Brazil
| | | | - Sabine Schanzer
- Department of Dermatology and Allergology, Universitätsmedizin Berlin, Berlin, Germany
| | | | - Martina Meinke
- Klinik für Dermatologie, CCP, Charité - Universitätsmedizin Berlin, Berlin, Germany
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Nurzyńska-Wierdak R, Pietrasik D, Walasek-Janusz M. Essential Oils in the Treatment of Various Types of Acne-A Review. PLANTS (BASEL, SWITZERLAND) 2022; 12:90. [PMID: 36616219 PMCID: PMC9824697 DOI: 10.3390/plants12010090] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 12/19/2022] [Accepted: 12/20/2022] [Indexed: 06/17/2023]
Abstract
Acne is a chronic, common disease that poses a significant therapeutic, psychological and social problem. The etiopathogenesis of this disease is not fully understood. Drugs used in general and external therapy should have anti-seborrhoeic, anticomadogenic, bactericidal, bacteriostatic, and anti-inflammatory properties. Acne treatment is often associated with the long-term use of antibiotics, contributing to the global antibiotic resistance crisis. In order to solve this problem, attention has been paid to essential oils and their terpene components with potent antimicrobial, anti-inflammatory, and antioxidant properties. Research shows that certain essential oils effectively reduce inflammatory acne lesions through mechanisms related to the sebaceous glands, colonization of Cutibacterium acnes, and reactive oxygen species (ROS). An example is tea tree oil (TTO), a more commonly used topical agent for treating acne. TTO has antimicrobial and anti-inflammatory activity. The paper presents the latest scientific information on the activity and potential use of specific essential oils in treating acne. Evidence of antibacterial, anti-inflammatory, and antioxidant activity of several essential oils and their main components was presented, indicating the possibility of using them in the treatment of acne.
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Cui H, Guo C, Wang Q, Feng C, Duan Z. A pilot study on the efficacy of topical lotion containing anti-acne postbiotic in subjects with mild -to -moderate acne. Front Med (Lausanne) 2022; 9:1064460. [PMID: 36569166 PMCID: PMC9780477 DOI: 10.3389/fmed.2022.1064460] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 11/25/2022] [Indexed: 12/13/2022] Open
Abstract
Introduction Acne can compromise facial esthetics and become a mental burden, especially when it occurs in puberty. Skincare cosmetics with anti-acne efficiency is more convenient than other treatment modalities, such as dietary supplements, in certain circumstances. The purpose of this study was to investigate the efficacy of an anti-acne lotion in alleviating acne. Methods In our study, an anti-acne lotion containing ferment lysate produced by Lactiplantibacillus plantarum VHProbi® E15 were applied to subjects with mild -to -moderate acne over 4 weeks. The efficacy was evaluated based on instrumental measurements using Visia®-CR and CK-MPA® system. Results and discussion The anti-acne lotion exhibited favorable safety, meeting the stringent criteria for the detection of microbes, heavy metals, toxicity, and irritation. After 2 weeks of treatment, a statistically significant improvement in acne lesions was observed compared to baseline (P < 0.01), and this continued to the end of the study. After 4 weeks of treatment, the transepidermal water loss (P < 0.05) and sebum production (P < 0.05) were significantly decreased in subjects compared to baseline. In addition, the pore/area of interest (AOI) and stratum corneum hydration displayed slightly positive changes throughout treatment. Thus, we conclude that applying topical anti-acne lotion may be safe and confer effective benefits in people with mild -to -moderate acne and represents a promising therapeutic option for acne.
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Lupu M, Malciu AM, Voiculescu VM. Feasibility of Reflectance Confocal Microscopy Monitoring in Oily, Acne-Prone Facial Skin Treated with a Topical Combination of Alpha and Beta-Hydroxy Acids, Anti-Inflammatory Molecules, and Herculane Thermal Water: A Blinded, One-Month Study. LIFE (BASEL, SWITZERLAND) 2022; 12:life12121973. [PMID: 36556338 PMCID: PMC9783705 DOI: 10.3390/life12121973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 11/15/2022] [Accepted: 11/23/2022] [Indexed: 11/29/2022]
Abstract
Oily, acne-prone skin is a common skin type which may be monitored in vivo using reflectance confocal microscopy (RCM). The aim of the study was to assess the feasibility of RCM in evaluating the effectiveness of a topical combination of alpha- and beta-hydroxy acids, anti-inflammatory and antibacterial molecules, and Herculane thermal water on acne-prone skin. Thirty-five subjects with oily, acne-prone skin were prescribed topical combination products and were evaluated by clinical, Wood's lamp, and RCM imaging at baseline and after 28 days. At 28 days, the RCM-evaluated number of dilated infundibula, infundibula filled with keratotic material, and infundibula with thickened bright borders, as well as the density of the inflammatory infiltrate, were significantly decreased. Wood's light images at 28 days showed a significantly reduced number of C. acnes-colonized infundibula, and both the median area and the intensity of the red-orange fluorescence were decreased. The reduction in the clinical score was concurrent with the improvement in the RCM parameters, suggesting that this non-invasive imaging technique is appropriate for efficiency evaluations of topical acne treatments.
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Affiliation(s)
- Mihai Lupu
- Department of Dermatology, MEDAS Medical Center, 030442 Bucharest, Romania
- Department of Dermatology, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
- Correspondence: (M.L.); (V.M.V.)
| | - Ana Maria Malciu
- Department of Dermatology and Allergology, Elias Emergency University Hospital, 011461 Bucharest, Romania
| | - Vlad Mihai Voiculescu
- Department of Dermatology, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
- Department of Dermatology and Allergology, Elias Emergency University Hospital, 011461 Bucharest, Romania
- Correspondence: (M.L.); (V.M.V.)
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11
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Zdrada J, Odrzywołek W, Stolecka-Warzecha A, Wilczyński S, Błońska-Fajfrowska B. The influence of cosmetics dedicated to oily and acne-prone skin on skin parameters. J Cosmet Dermatol 2022; 21:6092-6099. [PMID: 35665586 DOI: 10.1111/jocd.15143] [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: 02/21/2022] [Revised: 05/24/2022] [Accepted: 06/02/2022] [Indexed: 12/27/2022]
Abstract
INTRODUCTION Patient compliance with care recommendations is closely related to the role of cosmetics in delaying or preventing the side effects of medications used to treat acne. METHODS A total of 33 volunteers with symptoms of acne vulgaris were qualified for the study. The skin parameters were measured before the experiment, after the 4 and at the 8 weeks of use. The measurements were subject to moisturizing the skin and secretion of sebum and skin color. A skin acoustic parameters using high-frequency ultrasound (33 MHz) was also performed. The recorded images were used to determine the epidermal entrance echo thickness and echo density of dermis. RESULTS The results show a change in the value of skin parameters during the 8-week application of a specific skin care procedure. The secretion of sebum did not change significantly, there was a decrease in hydration, and the level of melanin and hemoglobin remained at the same level. The thickness of the epidermis entrance echo in the ultrasound image was thinned. CONCLUSION For many mild/moderate acne patients, cosmetics proven to be effective and well tested in clinical trials can offer a real benefit in reducing both inflammation, sebum production, melanin, and irritation, but should also be moisturizing.
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Affiliation(s)
- Julita Zdrada
- Department of Basic Biomedical Science, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, Katowice, Poland
| | - Wiktoria Odrzywołek
- Department of Basic Biomedical Science, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, Katowice, Poland
| | - Anna Stolecka-Warzecha
- Department of Basic Biomedical Science, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, Katowice, Poland
| | - Sławomir Wilczyński
- Department of Basic Biomedical Science, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, Katowice, Poland
| | - Barbara Błońska-Fajfrowska
- Department of Basic Biomedical Science, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, Katowice, Poland
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12
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Kamel R, Afifi SM, Abdou AM, Esatbeyoglu T, AbouSamra MM. Nanolipogel Loaded with Tea Tree Oil for the Management of Burn: GC-MS Analysis, In Vitro and In Vivo Evaluation. Molecules 2022; 27:molecules27196143. [PMID: 36234697 PMCID: PMC9570711 DOI: 10.3390/molecules27196143] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/13/2022] [Accepted: 09/15/2022] [Indexed: 11/16/2022] Open
Abstract
The GC-MS analysis of tea tree oil (TTO) revealed 38 volatile components with sesquiterpene hydrocarbons (43.56%) and alcohols (41.03%) as major detected classes. TTO efficacy is masked by its hydrophobicity; nanoencapsulation can address this drawback. The results showed that TTO-loaded solid lipid nanoparticles (SLN1), composed of glyceryl monostearate (2% w/w) and Poloxamer188 (5% w/w), was spherical in shape with a core-shell microstructure. TTO-SLN1 showed a high entrapment efficiency (96.26 ± 2.3%), small particle size (235.0 ± 20.4 nm), low polydispersity index (0.31 ± 0.01), and high negative Zeta potential (−32 mV). Moreover, it exhibited a faster active agent release (almost complete within 4 h) compared to other formulated TTO-SLNs as well as the plain oil. TTO-SLN1 was then incorporated into cellulose nanofibers gel, isolated from sugarcane bagasse, to form the ‘TTO-loaded nanolipogel’ which had a shear-thinning behavior. Second-degree thermal injuries were induced in Wistar rats, then the burned skin areas were treated daily for 7 days with the TTO-loaded nanolipogel compared to the unmedicated nanolipogel, the TTO-loaded conventional gel, and the normal saline (control). The measurement of burn contraction proved that TTO-loaded nanolipogel exhibited a significantly accelerated skin healing, this was confirmed by histopathological examination as well as quantitative assessment of inflammatory infiltrate. This study highlighted the success of the proposed nanotechnology approach in improving the efficacy of TTO used for the repair of skin damage induced by burns.
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Affiliation(s)
- Rabab Kamel
- Pharmaceutical Technology Department, National Research Centre, Cairo 12622, Egypt
- Correspondence: or (R.K.); (T.E.); Tel.: +201113639193 (R.K.); +49-511-762-5589 (T.E.)
| | - Sherif M. Afifi
- Pharmacognosy Department, Faculty of Pharmacy, University of Sadat City, Sadat City 32897, Egypt
| | - Amr M. Abdou
- Department of Microbiology and Immunology, National Research Centre, Cairo 12622, Egypt
| | - Tuba Esatbeyoglu
- Institute of Food Science and Human Nutrition, Department of Food Development and Food Quality, Gottfried Wilhelm Leibniz University Hannover, Am Kleinen Felde 30, 30167 Hannover, Germany
- Correspondence: or (R.K.); (T.E.); Tel.: +201113639193 (R.K.); +49-511-762-5589 (T.E.)
| | - Mona M. AbouSamra
- Pharmaceutical Technology Department, National Research Centre, Cairo 12622, Egypt
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13
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Antiparasitic Activity of Tea Tree Oil (TTO) and Its Components against Medically Important Ectoparasites: A Systematic Review. Pharmaceutics 2022; 14:pharmaceutics14081587. [PMID: 36015213 PMCID: PMC9416580 DOI: 10.3390/pharmaceutics14081587] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 07/14/2022] [Accepted: 07/22/2022] [Indexed: 12/04/2022] Open
Abstract
Ectoparasites are pathogens that can infect the skin and cause immense pain, discomfort, and disease. They are typically managed with insecticides. However, the fast-emerging antimicrobial resistance and the slow rate of development of new bio-actives combined with environmental and health concerns over the continued use of neurotoxic insecticides warrant newer and alternative methods of control. Tea tree oil (TTO), as an alternative agent, has shown remarkable promise against ectoparasites in recent studies. To our knowledge, this is the first systematic review to assess preclinical and clinical studies exploring the antiparasitic activity of TTO and its components against clinically significant ectoparasites, such as Demodex mites, scabies mites, house dust mites, lice, fleas, chiggers, and bed bugs. We systematically searched databases, including PubMed, MEDLINE (EBSCOhost), Embase (Scopus), CENTRAL, Cochrane Library, CINAHL, ScienceDirect, Web of Science, SciELO, and LILACS in any language from inception to 4 April 2022. Studies exploring the therapeutic activity of TTO and its components against the ectoparasites were eligible. We used the ToxRTool (Toxicological data reliability assessment) tool, the Joanna Briggs Institute (JBI) critical appraisal tools, and the Jadad scale to assess the methodological qualities of preclinical (in vitro and in vivo) studies, non-randomised controlled trials (including cohort, case series, and case studies), and randomised controlled trials, respectively. Of 497 identified records, 71 studies were included in this systematic review, and most (66%) had high methodological quality. The findings of this review revealed the promising efficacy of TTO and its components against ectoparasites of medical importance. Most importantly, the compelling in vitro activity of TTO against ectoparasites noted in this review seems to have translated well into the clinical environment. The promising outcomes observed in clinical studies provide enough evidence to justify the use of TTO in the pharmacotherapy of ectoparasitic infections.
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14
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The Role of Herbal Medicine in the Treatment of Acne Vulgaris: A Systematic Review of Clinical Trials. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:2011945. [PMID: 35754694 PMCID: PMC9217581 DOI: 10.1155/2022/2011945] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 05/25/2022] [Accepted: 05/28/2022] [Indexed: 12/29/2022]
Abstract
Over the past few decades, interest in medicinal plants and phytochemicals for the treatment of skin disorders, including acne vulgaris, has progressively increased. Acne vulgaris is a chronic inflammatory disease of the pilosebaceous unit, which mainly occurs in adolescents and young adults. The treatment focuses on the four main factors involved in its pathogenesis: increased sebum production, hyperkeratinization, overgrowth of Cutibacterium acnes, and inflammation. The treatment includes topical retinoids, benzoyl peroxide, antibiotics, and oral isotretinoin. In this regard, the use of herbal medicine as a complementary and alternative medicine is a promising strategy. The main objective of this study was to systematically evaluate the efficacy and safety of medicinal plants and phytochemicals in the treatment of acne vulgaris. Three scientific databases (PubMed, Web of Science, and Scopus) were searched from inception to January 2021. Clinical trials comparing herbal therapies with placebo or other medicines for the treatment of acne vulgaris were included and analyzed. Outcome measures of interest comprised acne lesions (inflammatory and noninflammatory), sebum production, acne severity, and quality of life. The risk of bias in the included randomized controlled trials (RCTs) was assessed using the Cochrane risk-of-bias tool. A total of 34 clinical trials involving 1753 participants met the inclusion criteria for this systematic review. Most trials showed that herbal medicine significantly reduces inflammatory and noninflammatory acne lesions and has a relevant effect on acne severity. Some medicinal plants revealed equal or higher efficacy to standard treatments. No significant difference between groups in sebum production and quality of life was observed and no severe adverse events were reported. This systematic review provides evidence that medicinal plants and phytochemicals are promising treatments for mild to moderate acne vulgaris. However, more quality of evidence and standardized methodologies are needed to support their effectiveness and safety claims.
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Zhang Z, Zhang X, Fu Z, Cao L, Xiong Z, Tang Y, Feng Y. Fibrous palygorskite clays as versatile nanocarriers for skin delivery of tea tree oils in efficient acne therapy. Int J Pharm 2022; 623:121903. [PMID: 35697203 DOI: 10.1016/j.ijpharm.2022.121903] [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: 02/19/2022] [Revised: 05/16/2022] [Accepted: 06/07/2022] [Indexed: 02/02/2023]
Abstract
This paper presents a facile approach to develop palygorskite (Pal), a fibrous clay mineral, as a delivery system of tea tree oil (TTO) for topical acne therapy. The obtained TTO-Pal composite showed an efficient loading of TTO (27.4%) with a selective accumulation of terpine-4-ol and 1,8-cineole (two major antimicrobial TTO constituents), sustained release of TTO at skin physiological conditions (pH5.4, 32 °C) and superior skin sebum (2.2 g/g) absorbability. In vitro toxicological assessments showed that the Pal incorporation strategy significantly reduced the acute contact toxicity of TTO. The antimicrobial results revealed a preferable bacteriostatic effect for the TTO-Pal system towards opportunistic dermal pathogens (Escherichia coli, Staphylococcus aureus and Propionibacterium acnes) over the beneficial bacterium (Staphylococcus epidermis). Moreover, TTO-Pal based formulations exhibited pronounced clinical therapeutic efficacy in treating facial acne by rapidly reducing inflamed lesions, modulating skin sebum overproduction and restoring barrier function. This is the first report of using fibrous clay as a biocompatible nanocarrier system for topical delivery of essential oils in efficient management of facial acne with both in vitro and in vivo evidences, which may open perspectives for fibrous clay-drug delivery system in topical application and expand the high added value development of this mineral resource in the advanced healthcare fields.
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Affiliation(s)
- Zhaolun Zhang
- Beijing Key Laboratory of Plant Resources Research and Development, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Xi Zhang
- Beijing Key Laboratory of Plant Resources Research and Development, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Zhengpeng Fu
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Lihua Cao
- Beijing Key Laboratory of Plant Resources Research and Development, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Ziyi Xiong
- Beijing Key Laboratory of Plant Resources Research and Development, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Ying Tang
- Beijing Key Laboratory of Plant Resources Research and Development, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China.
| | - Yongjun Feng
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China; Gansu West Attapulgite Application Research Institute, Baiyin, Gansu 730900, China.
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16
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Yue Y, Xin G, Hua W, Kumar R, Juan W, Junsong X, Huafeng T. Chemical composition, antimicrobial activities and microencapsulation by complex coacervation of tea tree essential oils. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.16585] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yuan Yue
- College of Chemistry and Materials Engineering Beijing Technology and Business University Beijing 100048 China
| | - Geng Xin
- College of Chemistry and Materials Engineering Beijing Technology and Business University Beijing 100048 China
| | - Wu Hua
- College of Chemistry and Materials Engineering Beijing Technology and Business University Beijing 100048 China
| | - Rakesh Kumar
- Department of Biotechnology Central University of South Bihar Gaya 824236 India
| | - Wang Juan
- Key Laboratory of Brewing Molecular Engineering of China Light Industry Beijing Technology and Business University Beijing 100048 China
| | - Xiao Junsong
- School of Food and Health Beijing Technology and Business University Beijing 100048 China
| | - Tian Huafeng
- College of Chemistry and Materials Engineering Beijing Technology and Business University Beijing 100048 China
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Infante VHP, Maia Campos PMBG, Gaspar LR, Darvin ME, Schleusener J, Rangel KC, Meinke MC, Lademann J. Safety and efficacy of combined essential oils for the skin barrier properties: In vitro, ex vivo and clinical studies. Int J Cosmet Sci 2022; 44:118-130. [PMID: 34986500 DOI: 10.1111/ics.12761] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 01/03/2022] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To evaluate the safety and the synergistic effects of tea tree, lavender, eucalyptus and tangerine essential oils in combination on the skin using in vitro, ex vivo and clinical studies. METHODS The phototoxicity was predicted using 3T3 neutral red uptake phototoxicity test (OECD TG 432). Skin penetration was evaluated by confocal Raman microspectroscopy using direct application of essential oils to pig ears. For the clinical studies, 40 participants were enrolled and randomized in three groups: (1) lavender, eucalyptus and tangerine, (2) the same essential oils plus melaleuca and (3) placebo group. The skin was evaluated by noninvasive techniques before and after a 90-day period of topical use. RESULTS The essential oils were non-phototoxic, but the tangerine oil showed dose-dependent cytotoxicity (IC50: 33.1 µg/ml), presenting 35% of penetration in the viable epidermis. On the contrary, 17.7 µg/ml in combination was applied per day in the clinical study and the penetration rate for the combinations (10%, 1.77 µg/ml achieving the viable epidermis) guaranteed the safety, since in the clinical study, the application of the four essential oils improved skin barrier and morphologic skin characteristics, as well as increased skin hydration and decreased sebum levels, with no unwanted effects reported. CONCLUSIONS All essential oils studied were considered non-cytotoxic or non-phototoxic separately except tangerine, which present a dose-dependent cytotoxicity. Finally, the essential oils in combination in an appropriate amount were safe and effective in the improvement of the hydrolipidic balance and morphological properties of the skin.
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Affiliation(s)
- Victor H P Infante
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
- Freie Universität Berlin, Department of Dermatology, Venereology and Allergology, Humboldt-Universität zu Berlin, Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Patrícia M B G Maia Campos
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Lorena Rigo Gaspar
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Maxim E Darvin
- Freie Universität Berlin, Department of Dermatology, Venereology and Allergology, Humboldt-Universität zu Berlin, Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Johannes Schleusener
- Freie Universität Berlin, Department of Dermatology, Venereology and Allergology, Humboldt-Universität zu Berlin, Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Karen C Rangel
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Martina C Meinke
- Freie Universität Berlin, Department of Dermatology, Venereology and Allergology, Humboldt-Universität zu Berlin, Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Jürgen Lademann
- Freie Universität Berlin, Department of Dermatology, Venereology and Allergology, Humboldt-Universität zu Berlin, Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Berlin, Germany
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18
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Quercetin loaded cosm-nutraceutical electrospun composite nanofibers for acne alleviation: Preparation, characterization and experimental clinical appraisal. Int J Pharm 2022; 612:121309. [PMID: 34801653 DOI: 10.1016/j.ijpharm.2021.121309] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 11/15/2021] [Accepted: 11/16/2021] [Indexed: 01/25/2023]
Abstract
In the cosmeceutical field, it is essential to develop topical delivery systems which would allow drugs to create a depot and permeate within the skin. The aim of the present study was to develop composite nanofibers of polyvinyl alcohol/quercetin/essential oils using the electrospinning technique, and assess their efficiency in acne alleviation. Quercetin was chosen due to its anti-inflammatory, anti-oxidant, and antibacterial activities. Nanofibers were characterized for their morphology, ex-vivo deposition/permeation, physical/mechanical integrity, thermal properties, and chemical characteristics. In addition, the anti-bacterial efficacy was tested on Propionibacterium acne (P. acne), and a cytotoxicity assay was carried out. Lastly, an experimental clinical trial was conducted on acne patients, where the percentage reduction of inflammatory, non-inflammatory and total acne lesions was taken as evaluation criterion. Results showed that quercetin was successfully loaded into the nanofibers which were homogenously dispersed. They showed a reasonable skin deposition percentage of 28.24% ± 0.012, a significantly higher antibacterial efficacy against Propionibacterium acne than quercetin alone, and were utterly safe on skin fibroblastic cells. Upon clinical examination on acne patients, the nanofibers showed 61.2%, 14.7%, and 52.9% reduction of inflammatory, comedonal, and total acne lesions respectively, suggesting a promising topical anti-acne delivery system.
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19
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Azelaic acid and Melaleuca alternifolia essential oil co-loaded vesicular carrier for combinational therapy of acne. Ther Deliv 2021; 13:13-29. [PMID: 34842461 DOI: 10.4155/tde-2021-0059] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Aim: Azelaic acid (AzA), a comedolytic, antibacterial, anti-inflammatory anti-melanogenic agent, prescribed against acne vulgaris is safe on skin. Its combination with another widely used anti-acne agent, tea tree oil (EO) whose delivery is limited by volatility, instability and lipophilicity constraints was attempted. Method: Solvent injection was used to prepare AzA-EO integrated ethosomes. Result: Ethosomes were transformed into carbopol hydrogel, which exhibited pseudo-plastic properties with appreciable firmness, work of shear, stickiness and work of adhesion. The hydrogel showed better permeation and retention characteristics vis-a-vis commercial formulation (AzidermTM), when evaluated in Wistar rat skin. Further, ethosome hydrogel composite was better tolerated with no side effects. Conclusion: The findings suggests that the aforementioned strategy could be a potential treatment used for acne management.
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20
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Leung AK, Barankin B, Lam JM, Leong KF, Hon KL. Dermatology: how to manage acne vulgaris. Drugs Context 2021; 10:dic-2021-8-6. [PMID: 34691199 PMCID: PMC8510514 DOI: 10.7573/dic.2021-8-6] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Accepted: 09/08/2021] [Indexed: 11/29/2022] Open
Abstract
Background Acne vulgaris is the most common skin disease that can lead to disfigurement and psychological distress. This article aims to provide a narrative updated review on the management of acne vulgaris. Methods A PubMed search was performed with Clinical Queries using the key term “acne”. The search strategy included clinical trials, meta-analyses, randomized controlled trials, observational studies and reviews. The search was restricted to articles published in English. Results Treatments of acne include proper skin care, topical medications, oral medications and procedural therapies. Topical agents are the first-line treatment for mild-to-moderate acne and can be used as combination therapy for more severe acne. Systemic therapies are usually prescribed for the initial treatment of moderate-to-severe acne as well as for acne that is refractory to topical therapies. Conclusion Topical retinoids are the drugs of choice for the treatment and maintenance therapy of patients with mild-to-moderate acne vulgaris. Depending on the severity of the acne, topical retinoids may be used alone or in combination with benzoyl peroxide and topical or oral antibiotics. Oral antibiotics are an important therapy for inflammatory acne unresponsive to topical therapy. Neither topical nor oral antibiotics should be used as monotherapy. Oral contraceptives and/or spironolactone are useful for many women with acne. Oral isotretinoin is the drug of choice for severe, extensive, nodular acne vulgaris but is also often used in moderate cases where scarring is evident, acne-related psychosocial distress is significant or other treatment modalities have failed.
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Affiliation(s)
- Alexander Kc Leung
- Department of Pediatrics, The University of Calgary, and The Alberta Children's Hospital, Calgary, Alberta, Canada
| | | | - Joseph M Lam
- Department of Dermatology and Skin Sciences, University of British Columbia and BC Children's Hospital, Vancouver, British Columbia, Canada
| | - Kin Fon Leong
- Pediatric Institute, Kuala Lumpur General Hospital, Kuala Lumpur, Malaysia
| | - Kam Lun Hon
- Department of Paediatrics and Adolescent Medicine, The Hong Kong Children's Hospital, Hong Kong
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21
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Yasin M, Younis A, Javed T, Akram A, Ahsan M, Shabbir R, Ali MM, Tahir A, El-Ballat EM, Sheteiwy MS, Sammour RH, Hano C, Alhumaydhi FA, El-Esawi MA. River Tea Tree Oil: Composition, Antimicrobial and Antioxidant Activities, and Potential Applications in Agriculture. PLANTS 2021; 10:plants10102105. [PMID: 34685914 PMCID: PMC8540646 DOI: 10.3390/plants10102105] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 09/24/2021] [Accepted: 09/27/2021] [Indexed: 11/20/2022]
Abstract
Melaleuca is one of the genera of the Myrtaceae family enriched in tea tree oil (TTO). Tea tree oils of Melaleuca bracteata and Melaleuca alternifolia are of prime importance and have antioxidant and antimicrobial properties. Terpinen-4-ol and 1-8 cineole are major constituents of M. alternifolia oil. The percentages of the compounds in the oils can slightly vary according to the region of plant harvest, the distillation technique, or the part of the plant used for oil extraction. TTO has a bactericidal effect against various bacterial species such as Bacillus cereus, B. subtilis, E. coli, Pseudomonas putida, and S. aureus. Several reports proved that this essential oil is also effective against fungal strains of Fusarium, Aspergillus, and Candida species. It also has antioxidant properties such as radical scavenging activity and reducing power. The antioxidant properties of TTO at a concentration of 30 mM were observed to be greater than those of butylated hydroxytoluene (BHT), commonly used as a synthetic antioxidant. TTO is also an effective organic fungicide, herbicide, and insecticide for use in the agriculture sector. Postharvest application of the oil has been found efficient on sweet basil, citrus, and strawberry. It is concluded that tea tree oil has the potential to be used in the food, agriculture, and pharmaceutical industries as a natural antimicrobial and preservative agent. This review provides comprehensive information regarding the antioxidant and antimicrobial activities of tea tree oil and its potential applications in agriculture.
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Affiliation(s)
- Mursleen Yasin
- Institute of Horticulture Science, University of Agriculture, Faisalabad 38000, Pakistan; (M.Y.); (A.Y.); (A.A.); (M.M.A.)
| | - Adnan Younis
- Institute of Horticulture Science, University of Agriculture, Faisalabad 38000, Pakistan; (M.Y.); (A.Y.); (A.A.); (M.M.A.)
| | - Talha Javed
- College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (T.J.); (R.S.)
- Department of Agronomy, University of Agriculture, Faisalabad 38000, Pakistan
| | - Ahsan Akram
- Institute of Horticulture Science, University of Agriculture, Faisalabad 38000, Pakistan; (M.Y.); (A.Y.); (A.A.); (M.M.A.)
| | - Muhammad Ahsan
- Department of Horticulture, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan;
| | - Rubab Shabbir
- College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (T.J.); (R.S.)
- Seed Science and Technology, University of Agriculture, Faisalabad 38000, Pakistan;
| | - Muhammad Moaaz Ali
- Institute of Horticulture Science, University of Agriculture, Faisalabad 38000, Pakistan; (M.Y.); (A.Y.); (A.A.); (M.M.A.)
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Ayesha Tahir
- Seed Science and Technology, University of Agriculture, Faisalabad 38000, Pakistan;
| | - Enas M. El-Ballat
- Botany Department, Faculty of Science, Tanta University, Tanta 31527, Egypt;
| | - Mohamed S. Sheteiwy
- Department of Agronomy, Faculty of Agriculture, Mansoura University, Mansoura 35516, Egypt;
| | - Reda Helmy Sammour
- Department of Botany and Microbiology, College of Sciences, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia;
| | - Christophe Hano
- Laboratoire de Biologie des Ligneux et des Grandes Cultures (LBLGC), INRAE USC1328, Université d’Orléans, 28000 Chartres, France;
| | - Fahad A. Alhumaydhi
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah 51452, Saudi Arabia;
| | - Mohamed A. El-Esawi
- Botany Department, Faculty of Science, Tanta University, Tanta 31527, Egypt;
- Correspondence:
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22
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Johnson CJ, Eix EF, Lam BC, Wartman KM, Meudt JJ, Shanmuganayagam D, Nett JE. Augmenting the Activity of Chlorhexidine for Decolonization of Candida auris from Porcine skin. J Fungi (Basel) 2021; 7:jof7100804. [PMID: 34682225 PMCID: PMC8537331 DOI: 10.3390/jof7100804] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 09/08/2021] [Accepted: 09/15/2021] [Indexed: 01/15/2023] Open
Abstract
Candida auris readily colonizes skin and efficiently spreads among patients in healthcare settings worldwide. Given the capacity of this drug-resistant fungal pathogen to cause invasive disease with high mortality, hospitals frequently employ chlorhexidine bathing to reduce skin colonization. Using an ex vivo skin model, we show only a mild reduction in C. auris following chlorhexidine application. This finding helps explain why chlorhexidine bathing may have failures clinically, despite potent in vitro activity. We further show that isopropanol augments the activity of chlorhexidine against C. auris on skin. Additionally, we find both tea tree (Melaleuca alternifolia) oil and lemongrass (Cymbopogon flexuosus) oil to further enhance the activity of chlorhexidine/isopropanol for decolonization. We link this antifungal activity to individual oil components and show how some of these components act synergistically with chlorhexidine/isopropanol. Together, the studies provide strategies to improve C. auris skin decolonization through the incorporation of commonly used topical compounds.
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Affiliation(s)
- Chad J. Johnson
- Department of Medicine, University of Wisconsin, Madison, WI 53706, USA; (C.J.J.); (E.F.E.); (B.C.L.); (K.M.W.)
| | - Emily F. Eix
- Department of Medicine, University of Wisconsin, Madison, WI 53706, USA; (C.J.J.); (E.F.E.); (B.C.L.); (K.M.W.)
- Department of Medical Microbiology and Immunology, University of Wisconsin, Madison, WI 53706, USA
| | - Brandon C. Lam
- Department of Medicine, University of Wisconsin, Madison, WI 53706, USA; (C.J.J.); (E.F.E.); (B.C.L.); (K.M.W.)
| | - Kayla M. Wartman
- Department of Medicine, University of Wisconsin, Madison, WI 53706, USA; (C.J.J.); (E.F.E.); (B.C.L.); (K.M.W.)
| | - Jennifer J. Meudt
- Department of Animal and Dairy Sciences, University of Wisconsin, Madison, WI 53706, USA; (J.J.M.); (D.S.)
| | - Dhanansayan Shanmuganayagam
- Department of Animal and Dairy Sciences, University of Wisconsin, Madison, WI 53706, USA; (J.J.M.); (D.S.)
- Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI 53726, USA
- Center for Biomedical Swine Research and Innovation, University of Wisconsin School of Medicine and Public Health, Madison, WI 53726, USA
| | - Jeniel E. Nett
- Department of Medicine, University of Wisconsin, Madison, WI 53706, USA; (C.J.J.); (E.F.E.); (B.C.L.); (K.M.W.)
- Department of Medical Microbiology and Immunology, University of Wisconsin, Madison, WI 53706, USA
- Correspondence: ; Tel.: +1-608-263-1545
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Wu GX, Wang YW, Wu CS, Lin YH, Hung CH, Huang HH, Kuo SM. Therapeutic Efficacy of Sesquiterpene Farnesol in Treatment of Cutibacterium acnes-Induced Dermal Disorders. Molecules 2021; 26:5723. [PMID: 34577195 PMCID: PMC8465053 DOI: 10.3390/molecules26185723] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 09/14/2021] [Accepted: 09/17/2021] [Indexed: 11/16/2022] Open
Abstract
Acne vulgaris is a highly prevalent skin disorder requiring treatment and management by dermatologists. Antibiotics such as clindamycin are commonly used to treat acne vulgaris. However, from both medical and public health perspectives, the development of alternative remedies has become essential due to the increase in antibiotic resistance. Topical therapy is useful as a single or combined treatment for mild and moderate acne and is often employed as maintenance therapy. Thus, the current study investigated the anti-inflammatory, antibacterial, and restorative effects of sesquiterpene farnesol on acne vulgaris induced by Cutibacterium acnes (C. acnes) in vitro and in a rat model. The minimum inhibitory concentration (MIC) of farnesol against C. acnes was 0.14 mM, and the IC50 of 24 h exposure to farnesol in HaCaT keratinocytes was approximately 1.4 mM. Moreover, 0.8 mM farnesol exhibited the strongest effects in terms of the alleviation of inflammatory responses and abscesses and necrotic tissue repair in C.acnes-induced acne lesions; 0.4 mM farnesol and clindamycin gel also exerted similar actions after a two-time treatment. By contrast, nearly doubling the tissue repair scores, 0.4 mM farnesol displayed great anti-inflammatory and the strongest reparative actions after a four-time treatment, followed by 0.8 mM farnesol and a commercial gel. Approximately 2-10-fold decreases in interleukin (IL)-1β, IL-6, and tumor necrosis factor (TNF)-α, found by Western blot analysis, were predominantly consistent with the histopathological findings and tissue repair scores. The basal hydroxypropyl methylcellulose (HPMC) gel did not exert anti-inflammatory or reparative effects on rat acne lesions. Our results suggest that the topical application of a gel containing farnesol is a promising alternative remedy for acne vulgaris.
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Affiliation(s)
- Guan-Xuan Wu
- Department of Biomedical Engineering, I-Shou University, Kaohsiung City 82445, Taiwan; (G.-X.W.); (Y.-W.W.)
| | - Yu-Wen Wang
- Department of Biomedical Engineering, I-Shou University, Kaohsiung City 82445, Taiwan; (G.-X.W.); (Y.-W.W.)
| | - Chun-Shien Wu
- Center of General Education, I-Shou University, Kaohsiung City 82445, Taiwan;
| | - Yen-Hung Lin
- Institute of Biotechnology and Chemical Engineering, I-Shou University, Kaohsiung City 82445, Taiwan; (Y.-H.L.); (C.-H.H.)
- Department of Pharmacy and Master Program, Tajen University, Yanpu Township 90741, Taiwan
| | - Chih-Hsin Hung
- Institute of Biotechnology and Chemical Engineering, I-Shou University, Kaohsiung City 82445, Taiwan; (Y.-H.L.); (C.-H.H.)
| | - Han-Hsiang Huang
- Department of Veterinary Medicine, National Chiayi University, Chiayi City 60054, Taiwan;
| | - Shyh-Ming Kuo
- Department of Biomedical Engineering, I-Shou University, Kaohsiung City 82445, Taiwan; (G.-X.W.); (Y.-W.W.)
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Jones VA, Patel PM, Wilson C, Wang H, Ashack KA. Complementary and alternative medicine treatments for common skin diseases: A systematic review and meta-analysis. JAAD Int 2021; 2:76-93. [PMID: 34409356 PMCID: PMC8362305 DOI: 10.1016/j.jdin.2020.11.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/16/2020] [Indexed: 12/16/2022] Open
Abstract
Background Complementary and alternative medicine (CAM) treatments are growing in popularity as alternative treatments for common skin conditions. Objectives To perform a systematic review and meta-analysis to determine the tolerability and treatment response to CAM treatments in acne, atopic dermatitis (AD), and psoriasis. Methods PubMed/Medline and Embase databases were searched to identify eligible studies measuring the effects of CAM in acne, AD, and psoriasis. Effect size with 95% confidence interval (CI) was estimated using the random-effect model. Results The search yielded 417 articles; 40 studies met the inclusion criteria. The quantitative results of CAM treatment showed a standard mean difference (SMD) of 3.78 (95% CI [−0.01, 7.57]) and 0.58 (95% CI [−6.99, 8.15]) in the acne total lesion count, a SMD of −0.70 (95% CI [−1.19, −0.21]) in the eczema area and severity index score and a SMD of 0.94 (95% CI [−0.83, 2.71]) in the scoring of atopic dermatitis score for AD, and a SMD of 3.04 (95% CI [−0.35, 6.43]) and 5.16 (95% CI [−0.52, 10.85]) in the Psoriasis Area Severity Index score for psoriasis. Limitations Differences between the study designs, sample sizes, outcome measures, and treatment durations limit the generalizability of data. Conclusions Based on our quantitative findings we conclude that there is insufficient evidence to support the efficacy and the recommendation of CAM for acne, AD, and psoriasis.
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Key Words
- AD, atopic dermatitis
- AV, aloe vera
- CAM, complementary and alternative medicine
- CCO, coconut oil
- GT, green tea
- PASI, psoriasis area and severity index
- SCORAD, scoring of atopic dermatitis
- SMD, standardized mean difference
- SSO, sunflower seed oil
- TCS, topical corticosteroid
- TLC, total lesion count
- TTO, tea tree oil
- acne vulgaris
- aloe vera
- atopic dermatitis
- coconut oil
- colloidal oatmeal
- complementary alternative medicine
- curcumin
- eczema
- green tea
- honey
- meta-analysis
- natural ingredients
- psoriasis
- shea butter
- sunflower seed oil
- systematic review
- tea tree oil
- turmeric
- witch hazel
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Affiliation(s)
- Virginia A. Jones
- Department of Dermatology, University of Illinois at Chicago, Chicago, Illinois
| | - Payal M. Patel
- Department of Dermatology, University of Illinois at Chicago, Chicago, Illinois
| | - Claire Wilson
- Department of Dermatology, University of Illinois at Chicago, Chicago, Illinois
| | - Hongnan Wang
- Department of Mathematics, Statistics and Computer Science, University of Illinois at Chicago, Chicago, Illinois
| | - Kurt A. Ashack
- Department of Dermatology, University of Illinois at Chicago, Chicago, Illinois
- Dermatology Associates of West Michigan, Grand Rapids, Michigan
- Correspondence to: Kurt A. Ashack, MD, MHS, Dermatology Associates of West Michigan, 1740 East Paris Ave SE, Grand Rapids, MI 49546.
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Youn BH, Kim YS, Yoo S, Hur MH. Antimicrobial and hand hygiene effects of Tea Tree Essential Oil disinfectant: A randomised control trial. Int J Clin Pract 2021; 75:e14206. [PMID: 33950544 DOI: 10.1111/ijcp.14206] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 03/25/2021] [Accepted: 03/31/2021] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Hand hygiene is paramount in preventing healthcare-associated infections in medical environments and the spread of infectious diseases in non-medical environments. AIMS This study used a randomised controlled trial to investigate the effects of a tea tree (Melaleuca alternifolia) oil disinfectant on hand disinfection and skin condition. METHODS A tea tree oil group received 5 mL of 10% tea tree oil disinfectant mixed in a ratio of 2:2:1:15 of Melaleuca alternifolia oil, solubiliser, glycerin and sterile distilled water. Data collection took place between April 9 and April 13, 2018. The subjects were 112 healthy adults. An alcohol group received 2 mL of a gel-type hand sanitiser comprising 83% ethanol used without water; a benzalkonium chloride group received 0.8 mL of a foam-type hand sanitiser containing benzalkonium chloride used without water and a control group received no treatment. Subjective skin condition, transepidermal water loss and adenosine triphosphate were assessed, and a microbial culture test was performed following treatment. RESULTS The general characteristics and the pretreatment dependent variables did not differ significantly by group. Posttreatment adenosine triphosphate log10 values significantly differed across all four groups (F = 3.23, P = .025). Similarly, posttreatment bacterial density log10 values differed significantly across the tea tree oil, alcohol, benzalkonium chloride and control groups (F = 91.71, P < .001). CONCLUSION The study confirmed that tea tree oil disinfectant is effective for hand disinfection. Accordingly, tea tree oil disinfectants may be introduced to nursing practice as a new hand hygiene product to prevent and reduce healthcare-associated infections.
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Affiliation(s)
| | - Yeon-Suk Kim
- Department of Nursing, Woosong College, Daejeon, South Korea
| | - Seungmin Yoo
- Department of Microbiology and Immunology, Eulji University School of Medicine, Daejeon, South Korea
| | - Myung-Haeng Hur
- College of Nursing, Eulji University, Uijeongbu, South Korea
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A topical gel of tea tree oil nanoemulsion containing adapalene versus adapalene marketed gel in patients with acne vulgaris: a randomized clinical trial. Arch Dermatol Res 2021; 314:673-679. [PMID: 34251536 DOI: 10.1007/s00403-021-02267-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 06/14/2021] [Accepted: 06/30/2021] [Indexed: 10/20/2022]
Abstract
Adapalene is used for treatment of acne vulgaris, a common dermatological disease. Nano-based carriers have been developed to improve solubility and bioavailability of adapalene and other acne treatment drugs. In our previous report, tea tree oil nanoemulsion containing adapalene gel (TTO NE + ADA Gel) showed appropriate physical and biological properties such as stability, viscosity, pH, size, morphology and biocompatibility in an animal model. The present study was designed to assess efficacy and safety of the TTO NE + ADA Gel in comparison with 0.1% adapalene marketed gel (ADA Marketed Gel). A total of 100 patients were randomized to receive TTO NE + ADA Gel or ADA Marketed Gel, once daily at night, for 12 weeks. Analysis for efficacy was conducted by acne lesion count (total, inflammatory and non-inflammatory) and acne severity index at weeks 4, 8 and 12 using generalized estimating equation along with the safety assessments in each measurement for assessing dryness, erythema, burning sensation and irritation. Significantly better reduction in total, inflammatory, and non-inflammatory acne lesions were reported for TTO NE + ADA Gel as compared to the ADA Marketed Gel overall and on each measurement occasion (p value < 0.001 for all). Mean acne severity index also reduced with TTO NE + ADA Gel significantly in comparison with ADA Marketed Gel (p value < 0.001). Dryness was the most common adverse effect reported in both groups and it was higher in TTO NE + ADA Gel group. In conclusion, TTO NE + ADA Gel compared to ADA Marketed Gel appears more effective in the treatment of acne vulgaris, with no important change in adverse effects.
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Extraction of Essential Oil from River Tea Tree (Melaleuca bracteata F. Muell.): Antioxidant and Antimicrobial Properties. SUSTAINABILITY 2021. [DOI: 10.3390/su13094827] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Tea tree oil (TTO) from the genus Melaleuca L. has antimicrobial, antibacterial, antifungal, and antioxidant properties and is used by the cosmetic, pharmaceutical, and horticultural industries. In Pakistan, Melaleuca bracteata can be exploited for essential oil purposes, as this species is well adapted to Pakistan’s agroclimatic conditions. The objective of the present study was to evaluate the yield of M. bracteata essential oil together with its antioxidant and antimicrobial properties under local prevailing conditions of the subtropics. Essential oil was extracted through the hydrodistillation method. Using this method, six batches of 8 kg samples (fresh leaves and branches) underwent a distillation process for 4–5 h. The average yield obtained was about 0.2%. The GCMS was used to identify the components of extracted essential oil. Eugenol methyl ether is the major component in extracted essential oil, i.e., 96% of the total. A high content of flavonoids and phenolics and a Fe-reducing power ability of M. bracteata were observed. The oil was also found effective against B. subtilis, B. cereus, White rot, and A. flavus. Hence, it is concluded that there is a possibility to use TTO for its biocidal properties, and it must also be inspected and then commercialized in Pakistan by the agriculture and cosmetic industries.
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Amparo TR, Seibert JB, Silveira BM, Costa FSF, Almeida TC, Braga SFP, da Silva GN, dos Santos ODH, de Souza GHB. Brazilian essential oils as source for the discovery of new anti-COVID-19 drug: a review guided by in silico study. PHYTOCHEMISTRY REVIEWS : PROCEEDINGS OF THE PHYTOCHEMICAL SOCIETY OF EUROPE 2021; 20:1013-1032. [PMID: 33867898 PMCID: PMC8042356 DOI: 10.1007/s11101-021-09754-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 11/27/2020] [Indexed: 06/12/2023]
Abstract
The emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in China and its spread worldwide has become one of the biggest health problem due to the lack of knowledge about an effective chemotherapy. Based on the current reality of the SARS-CoV-2 pandemic, this study aimed to make a review literature about potential anti-coronavirus natural compounds guided by an in silico study. In the first step, essential oils from native species found in the Brazilian herbal medicine market and Brazilian species that have already shown antiviral potential were used as source for the literature search and compounds selection. Among these compounds, 184 showed high antiviral potential against rhinovirus or picornavirus by quantitative structure-activity relationship analysis. (E)-α-atlantone; 14-hydroxy-α-muurolene; allo-aromadendrene epoxide; amorpha-4,9-dien-2-ol; aristochene; azulenol; germacrene A; guaia-6,9-diene; hedycaryol; humulene epoxide II; α-amorphene; α-cadinene; α-calacorene and α-muurolene showed by a molecular docking study the best result for four target proteins that are essential for SARS-CoV-2 lifecycle. In addition, other parameters obtained for the selected compounds indicated low toxicity and showed good probability to achieve cell permeability and be used as a drug. These results guided the second literature search which included other species in addition to native Brazilian plants. The majority presence of any of these compounds was reported for essential oils from 45 species. In view of the few studies relating essential oils and antiviral activity, this review is important for future assays against the new coronavirus. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s11101-021-09754-4.
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Affiliation(s)
| | | | - Benila Maria Silveira
- Laboratório de Fitotecnologia, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Fernanda Senna Ferreira Costa
- Laboratório de Fitotecnologia, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
- Laboratório de Microbiologia Ambiental e Biotecnologia, Universidade Vila Velha, Vila Velha, Brazil
| | - Tamires Cunha Almeida
- Laboratório de Fitotecnologia, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
- Laboratório de Pesquisas Clínicas, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Saulo Fehelberg Pinto Braga
- Laboratório de Fitotecnologia, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
- Laboratório de Química Medicinal e Bioensaios, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Glenda Nicioli da Silva
- Laboratório de Fitotecnologia, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
- Laboratório de Pesquisas Clínicas, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
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Wunnoo S, Bilhman S, Amnuaikit T, Ontong JC, Singh S, Auepemkiate S, Voravuthikunchai SP. Rhodomyrtone as a New Natural Antibiotic Isolated from Rhodomyrtus tomentosa Leaf Extract: A Clinical Application in the Management of Acne Vulgaris. Antibiotics (Basel) 2021; 10:antibiotics10020108. [PMID: 33499400 PMCID: PMC7912151 DOI: 10.3390/antibiotics10020108] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/18/2021] [Accepted: 01/19/2021] [Indexed: 12/05/2022] Open
Abstract
Rhodomyrtone, a plant-derived principal compound isolated from Rhodomyrtus tomentosa (Myrtaceae) leaf extract, was assessed as a potential natural alternative for the treatment of acne vulgaris. The clinical efficacy of a 1% liposomal encapsulated rhodomyrtone serum was compared with a marketed 1% clindamycin gel. In a randomized and double-blind controlled clinical trial, 60 volunteers with mild to moderate acne severity were assigned to two groups: rhodomyrtone serum and clindamycin gel. The volunteers were instructed to apply the samples to acne lesions on their faces twice daily. A significant reduction in the total numbers of acne lesions was demonstrated in both treatment groups between week 2 and 8 (p < 0.05). Significant differences in acne numbers compared with the baseline were evidenced at week 2 onwards (p < 0.05). At the end of the clinical trial, the total inflamed acne counts in the 1% rhodomyrtone serum group were significantly reduced by 36.36%, comparable to 34.70% in the clindamycin-treated group (p < 0.05). Furthermore, a commercial prototype was developed, and a clinical assessment of 45 volunteers was performed. After application of the commercial prototype for 1 week, 68.89% and 28.89% of volunteers demonstrated complete and improved inflammatory acne, respectively. All of the subjects presented no signs of irritation or side effects during the treatment. Most of the volunteers (71.11%) indicated that they were very satisfied. Rhodomyrtone serum was demonstrated to be effective and safe for the treatment of inflammatory acne lesions.
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Affiliation(s)
- Suttiwan Wunnoo
- Division of Biological Science, Faculty of Science and Natural Product Research Center of Excellence, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand; (S.W.); (S.B.); (J.C.O.); (S.S.)
| | - Siwaporn Bilhman
- Division of Biological Science, Faculty of Science and Natural Product Research Center of Excellence, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand; (S.W.); (S.B.); (J.C.O.); (S.S.)
| | - Thanaporn Amnuaikit
- Department of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand;
| | - Julalak C. Ontong
- Division of Biological Science, Faculty of Science and Natural Product Research Center of Excellence, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand; (S.W.); (S.B.); (J.C.O.); (S.S.)
| | - Sudarshan Singh
- Division of Biological Science, Faculty of Science and Natural Product Research Center of Excellence, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand; (S.W.); (S.B.); (J.C.O.); (S.S.)
| | - Sauvarat Auepemkiate
- Department of Pathology, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand;
| | - Supayang P. Voravuthikunchai
- Division of Biological Science, Faculty of Science and Natural Product Research Center of Excellence, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand; (S.W.); (S.B.); (J.C.O.); (S.S.)
- Correspondence: ; Tel.: +66-7428-8321
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Xu WJ, Xie X, Wu L, Tian XM, Wang CC, Kong LY, Luo J. Cajuputones A-C, β-Triketone Flavanone Hybrids from the Branches and Leaves of Melaleuca cajuputi. Chem Biodivers 2020; 17:e2000706. [PMID: 33026163 DOI: 10.1002/cbdv.202000706] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 10/01/2020] [Indexed: 01/21/2023]
Abstract
Three new β-triketone flavanone hybrids, cajuputones A-C were obtained from Melaleuca cajuputi (the Australian 'tea tree'). The structures of cajuputones A-C were elucidated by 1D/2D NMR spectroscopy and HR-ESI-MS analyses; and their absolute configurations were established by electric circular dichroism (ECD) calculations using TDDFT method. Structurally, cajuputones A-C feature a rare 6/6/6/6 oxatetracyclic ring system fused between an acylphloroglucinol-derived β-triketone and a pinocembrin or strobopinin moiety via an angle-type pyran-like motif. DFT-based conformational optimization in chloroform explained the similarity of the 1D NMR data of cajuputones B and C (C-2 epimers).
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Affiliation(s)
- Wen-Jun Xu
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Xin Xie
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Lin Wu
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Xiao-Meng Tian
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Cheng-Cheng Wang
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Ling-Yi Kong
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Jun Luo
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
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da Silva NP, Carmo Rapozo Lavinas Pereira ED, Duarte LM, de Oliveira Freitas JC, de Almeida CG, da Silva TP, Melo RCN, Morais Apolônio AC, de Oliveira MAL, de Mello Brandão H, Pittella F, Fabri RL, Tavares GD, de Faria Pinto P. Improved anti-Cutibacterium acnes activity of tea tree oil-loaded chitosan-poly(ε-caprolactone) core-shell nanocapsules. Colloids Surf B Biointerfaces 2020; 196:111371. [PMID: 32980571 DOI: 10.1016/j.colsurfb.2020.111371] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 08/20/2020] [Accepted: 08/31/2020] [Indexed: 11/16/2022]
Abstract
The purpose of this study was to develop tea tree oil (TTO)-loaded chitosan-poly(ε-caprolactone) core-shell nanocapsules (NC-TTO-Ch) aiming the topical acne treatment. TTO was analyzed by gas chromatography-mass spectrometry, and nanocapsules were characterized regarding mean particle size (Z-average), polydispersity index (PdI), zeta potential (ZP), pH, entrapment efficiency (EE), morphology by Atomic Force Microscopy (AFM), and anti-Cutibacterium acnes activity. The main constituents of TTO were terpinen-4-ol (37.11 %), γ-terpinene (16.32 %), α-terpinene (8.19 %), ρ-cimene (6.56 %), and α-terpineol (6.07 %). NC-TTO-Ch presented Z-average of 268.0 ± 3.8 nm and monodisperse size distribution (PdI < 0.3). After coating the nanocapsules with chitosan, we observed an inversion in ZP to a positive value (+31.0 ± 1.8 mV). This finding may indicate the presence of chitosan on the nanocapsules' surface, which was corroborated by the AFM images. In addition, NC-TTO-Ch showed a slightly acidic pH (∼5.0), compatible with topical application. The EE, based on Terpinen-4-ol concentration, was approximately 95 %. This data suggests the nanocapsules' ability to reduce the TTO volatilization. Furthermore, NC-TTO-Ch showed significant anti-C. acnes activity, with a 4× reduction in the minimum inhibitory concentration, compared to TTO and a decrease in C. acnes cell viability, with an increase in the percentage of dead cells (17 %) compared to growth control (6.6 %) and TTO (9.7 %). Therefore, chitosan-poly(ε-caprolactone) core-shell nanocapsules are a promising tool for TTO delivery, aiming at the activity against C. acnes for the topical acne treatment.
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Affiliation(s)
- Natália Prado da Silva
- Protein Structure and Function Study Laboratory, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil; Laboratory of Nanostructured Systems Development, Department of Pharmaceutical Science, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Eloá do Carmo Rapozo Lavinas Pereira
- Laboratory of Nanostructured Systems Development, Department of Pharmaceutical Science, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Lucas Mattos Duarte
- Group of Analytical Chemistry and Chemometrics, Department of Chemistry, Institute of Exact Sciences, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil; Department of Analytical Chemistry, Institute of Chemistry, Fluminense Federal University, Niterói, Rio de Janeiro, 24020-121, Brazil
| | - Jhamine Caroline de Oliveira Freitas
- Protein Structure and Function Study Laboratory, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil; Bioactive Natural Products Laboratory, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | | | - Thiago Pereira da Silva
- Laboratory of Cellular Biology, Department of Biology, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Rossana C N Melo
- Laboratory of Cellular Biology, Department of Biology, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Ana Carolina Morais Apolônio
- Department of Parasitology, Microbiology and Immunology, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Marcone Augusto Leal de Oliveira
- Group of Analytical Chemistry and Chemometrics, Department of Chemistry, Institute of Exact Sciences, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Humberto de Mello Brandão
- Laboratory of Nanotechnology, Brazilian Agricultural Research Corporation (EMBRAPA), Juiz de Fora, Brazil
| | - Frederico Pittella
- Laboratory of Nanostructured Systems Development, Department of Pharmaceutical Science, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Rodrigo Luiz Fabri
- Bioactive Natural Products Laboratory, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Guilherme Diniz Tavares
- Laboratory of Nanostructured Systems Development, Department of Pharmaceutical Science, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil.
| | - Priscila de Faria Pinto
- Protein Structure and Function Study Laboratory, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
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Cha H, Kim SK, Kook M, Yi TH. Lactobacillus paraplantarum THG-G10 as a potential anti-acne agent with anti-bacterial and anti-inflammatory activities. Anaerobe 2020; 64:102243. [PMID: 32712375 DOI: 10.1016/j.anaerobe.2020.102243] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 06/11/2020] [Accepted: 07/14/2020] [Indexed: 02/01/2023]
Abstract
Cutibacterium acnes (formerly Propionibacterium acnes) is the main bacterium targeted for the prevention and medical treatment of acne vulgaris. Lactic acid bacteria (LAB) are a group of microorganisms classified by their ability to produce lactic acid through fermentation. Although the activities of LAB have been studied, their potential anti-acne effects are not well known. Here, Lactobacillus paraplantarum THG-G10, which has anti-bacterial activity against C. acnes, was isolated from traditional Kimchi in Republic of Korea. The anti-acne effects of dried cell-free supernatant of L. paraplantarum THG-G10 (DC-G10) were evaluated by determining its anti-microbial and anti-inflammatory activities. Anti-microbial activity was examined by a broth dilution assay: 25 mg/ml of DC-G10 inhibited the growth of C. acnes KCTC 5012 and KACC 1194; salicylic acid and benzoyl peroxide for acne treatment inhibited the growth of C. acnes KCTC 5012 and KACC 11946 at concentrations of 1.25 and 7.5 mg/ml, respectively; and tea tree oil inhibited the growth of C. acnes KCTC 5012 but not the growth of C. acnes KACC 11946 at 50 mg/ml. Anti-inflammatory activity was evaluated by a nitric oxide (NO) assay: only DC-G10 and ascorbic acid reduced LPS-induced NO production in RAW 264.7 cells in a dose-dependent manner. In addition, the toxicities of erythromycin, salicylic acid, benzoyl peroxide, tea tree oil, and DC-G10 were examined in HaCaT cells and normal human dermal fibroblasts (NHDFs). In these cells, the cytotoxic effects of DC-G10 were weaker than the effects of erythromycin, benzoyl peroxide, and ascorbic acid. Furthermore, scanning electron microscopy revealed that DC-G10 induces deleterious morphological changes in the bacterial cell membrane. These results demonstrate that DC-G10 may be an effective and safe treatment for acne vulgaris.
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Affiliation(s)
- HyeMin Cha
- Department of Oriental Medicinal Material and Processing, College of Life Science, Kyung Hee University Global Campus, 1732 Deokyoungdae-ro, Giheung-gu, Yongin-si, Gyeonggi-do, 446-701, Republic of Korea
| | - Su-Kyung Kim
- Department of Oriental Medicinal Material and Processing, College of Life Science, Kyung Hee University Global Campus, 1732 Deokyoungdae-ro, Giheung-gu, Yongin-si, Gyeonggi-do, 446-701, Republic of Korea
| | - MooChang Kook
- Department of Food and Nutrition, Baewha Women's University, Seoul, 03039, Republic of Korea.
| | - Tae-Hoo Yi
- Department of Oriental Medicinal Material and Processing, College of Life Science, Kyung Hee University Global Campus, 1732 Deokyoungdae-ro, Giheung-gu, Yongin-si, Gyeonggi-do, 446-701, Republic of Korea.
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Johansen B, Duval RE, Sergere JC. Antimicrobial Spectrum of Titroleane™: A New Potent Anti-Infective Agent. Antibiotics (Basel) 2020; 9:E391. [PMID: 32650521 PMCID: PMC7400619 DOI: 10.3390/antibiotics9070391] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 07/03/2020] [Accepted: 07/05/2020] [Indexed: 01/22/2023] Open
Abstract
Tea Tree oil (TTO) is well known for its numerous good properties but might be also irritating or toxic when used topically or ingested, thus limiting the number of possible applications in Humans. The aim of the study was to characterize the antimicrobial spectrum as well as the toxicity of Titroleane™, a new anti-infective agent obtained from TTO but cleared of its toxic monoterpenes part. The susceptibility to Titroleane™ of various pathogens (bacteria and fungi) encountered in animal and human health was studied in comparison with that of TTO. Antimicrobial screening was carried out using the broth microdilution method. Activities against aerobic, anaerobic, fastidious and non-fastidious microorganisms were performed. For all microorganisms tested, the MIC values for Titroleane™ ranged from 0.08% to 2.5%, except for Campylobacter jejuni, and Aspergillus niger. In particular, Titroleane™ showed good efficacy against skin and soft tissue infection pathogens, such as methicillin resistant Staphylococcus aureus (MRSA), intra-abdominal infections and oral pathogens, as well as fish farming pathogens. Toxicity testing showed little and similar cytotoxicities between TTO and Titroleane™ of 37% and 23%, respectively at a concentration of 0.025% (v/v). Finally, we demonstrated that the antimicrobial activity of Titroleane™ is similar to that of TTO.
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Affiliation(s)
- Bianca Johansen
- SETUBIO SA, Bioparc Vichy, F-03270 Hauterive, France
- Université de Lorraine, CNRS, L2CM, F-54000 Nancy, France
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Amer SS, Nasr M, Abdel-Aziz RTA, Moftah NH, El Shaer A, Polycarpou E, Mamdouh W, Sammour O. Cosm-nutraceutical nanovesicles for acne treatment: Physicochemical characterization and exploratory clinical experimentation. Int J Pharm 2020; 577:119092. [PMID: 32004681 DOI: 10.1016/j.ijpharm.2020.119092] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 01/26/2020] [Accepted: 01/27/2020] [Indexed: 12/12/2022]
Abstract
The full exploration of the 'nutraceuticals' therapeutic potential in cosmetics has been hindered by their poor stratum corneum permeation. Therefore, the aim of the present study was to formulate a nutraceutical; quercetin, in novel vitamin C based nanovesicles (aspasomes), and to explore their beneficial effects in the treatment of acne. Aspasomes were characterized for their particle size, zeta potential, entrapment efficiency (EE%), 3-months storage stability, skin deposition/permeation, antioxidant potential, and morphology. Aspasomes antibacterial efficacy on Propionibacterium acnes using the zone of inhibition assay was also tested, whilst their safety on skin fibroblastic cells was assessed in vitro using 3T3 CCL92 cell lines. An exploratory clinical trial was conducted in acne patients, and the percentage reduction of inflammatory, non-inflammatory and total acne lesions was taken as the evaluation criterion. Results revealed that quercetin-loaded aspasomes displayed a desirable nanometer size (125-184 nm), negative charge with good storage stability, and high skin deposition reaching 40%. Aspasomes managed to preserve the antioxidant activity of quercetin, and exhibited a significantly higher antibacterial effect (15 ± 1.53 mm) against Propionibacterium acnes than quercetin alone (8.25 ± 2.08 mm), and were safe on skin fibroblastic cells. Upon clinical examination in 20 acne patients (14 females, 6 males), quercetin aspasomes exhibited reduction percentages of 77.9%, 11.8% and 55.3% for inflammatory lesions, comedones and total lesions respectively. This opens vast applications of the presented formulation in the treatment of other oxidative skin diseases, and delineates the nutraceuticals and nanoformulations prepared from natural materials as promising dermatological treatment modes.
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Affiliation(s)
- Sandra Sherif Amer
- Department of Pharmaceutics, Faculty of Pharmacy and Drug Manufacturing, Pharos University in Alexandria, Alexandria, Egypt; Drug Discovery, Delivery and Patient Care (DDDPC) Theme, School of Life Sciences, Pharmacy and Chemistry, Department of Pharmacy, Kingston University London, Kingston upon Thames, Surrey, KT1 2EE, United Kingdom; Department of Chemistry, School of Sciences and Engineering, The American University in Cairo, Egypt
| | - Maha Nasr
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt.
| | - Rasha T A Abdel-Aziz
- Department of Dermatology, STD's and Andrology, Faculty of Medicine, Minia University, Al Minya, Egypt
| | - Noha H Moftah
- Department of Dermatology, STD's and Andrology, Faculty of Medicine, Minia University, Al Minya, Egypt
| | - Amr El Shaer
- Drug Discovery, Delivery and Patient Care (DDDPC) Theme, School of Life Sciences, Pharmacy and Chemistry, Department of Pharmacy, Kingston University London, Kingston upon Thames, Surrey, KT1 2EE, United Kingdom
| | - Elena Polycarpou
- Drug Discovery, Delivery and Patient Care (DDDPC) Theme, School of Life Sciences, Pharmacy and Chemistry, Department of Pharmacy, Kingston University London, Kingston upon Thames, Surrey, KT1 2EE, United Kingdom
| | - Wael Mamdouh
- Department of Chemistry, School of Sciences and Engineering, The American University in Cairo, Egypt
| | - Omaima Sammour
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
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Labib RM, Ayoub IM, Michel HE, Mehanny M, Kamil V, Hany M, Magdy M, Moataz A, Maged B, Mohamed A. Appraisal on the wound healing potential of Melaleuca alternifolia and Rosmarinus officinalis L. essential oil-loaded chitosan topical preparations. PLoS One 2019; 14:e0219561. [PMID: 31525200 PMCID: PMC6746351 DOI: 10.1371/journal.pone.0219561] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 06/26/2019] [Indexed: 01/30/2023] Open
Abstract
The present study investigates the wound healing potential of three chitosan-based topical preparations loaded with either tea tree essential oil, rosemary essential oil or a mixture of both oils in vivo. Essential oils of M. alternifolia and R. officinalis were analyzed using GC/MS. Essential oil-loaded chitosan topical preparations were formulated. Wound healing potential was evaluated in vivo using an excision wound model in rats. GC/MS analysis of M. alternifolia and R. officinalis essential oils revealed richness in oxygenated monoterpenes, representing 51.06% and 69.61% of the total oil composition, respectively. Topical application of chitosan-based formulation loaded with a mixture of tea tree and rosemary oils resulted in a significant increase in wound contraction percentage compared to either group treated with individual essential oils and the untreated group. Histopathological examination revealed that topical application of tea tree and rosemary oil combination demonstrated complete re-epithelialization associated with activated hair follicles. The high percentage of oxygenated monoterpenes in both essential oils play an important role in the antioxidant and wound healing potential observed herein. Incorporation of tea tree and rosemary essential oils in chitosan-based preparations in appropriate combination could efficiently promote different stages of wound healing.
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Affiliation(s)
- Rola M. Labib
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Iriny M. Ayoub
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Haidy E. Michel
- Department of Pharmcology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Mina Mehanny
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Center for Infection Research (HZI), Saarland University, Saarbrücken, Germany
| | - Verena Kamil
- Drug Design Program, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Meryl Hany
- Drug Design Program, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Mirette Magdy
- Drug Design Program, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Aya Moataz
- Drug Design Program, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Boula Maged
- Drug Design Program, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Ahmed Mohamed
- Drug Design Program, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
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Lubtikulthum P, Kamanamool N, Udompataikul M. A comparative study on the effectiveness of herbal extracts vs 2.5% benzoyl peroxide in the treatment of mild to moderate acne vulgaris. J Cosmet Dermatol 2019; 18:1767-1775. [PMID: 31012999 DOI: 10.1111/jocd.12962] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 02/23/2019] [Accepted: 03/22/2019] [Indexed: 11/30/2022]
Affiliation(s)
| | - Nanticha Kamanamool
- Department of Preventive and Social Medicine Srinakharinwirot University Bangkok Thailand
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Forni C, Facchiano F, Bartoli M, Pieretti S, Facchiano A, D'Arcangelo D, Norelli S, Valle G, Nisini R, Beninati S, Tabolacci C, Jadeja RN. Beneficial Role of Phytochemicals on Oxidative Stress and Age-Related Diseases. BIOMED RESEARCH INTERNATIONAL 2019; 2019:8748253. [PMID: 31080832 PMCID: PMC6475554 DOI: 10.1155/2019/8748253] [Citation(s) in RCA: 202] [Impact Index Per Article: 40.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 02/11/2019] [Accepted: 03/20/2019] [Indexed: 12/17/2022]
Abstract
Aging is related to a number of functional and morphological changes leading to progressive decline of the biological functions of an organism. Reactive Oxygen Species (ROS), released by several endogenous and exogenous processes, may cause important oxidative damage to DNA, proteins, and lipids, leading to important cellular dysfunctions. The imbalance between ROS production and antioxidant defenses brings to oxidative stress conditions and, related to accumulation of ROS, aging-associated diseases. The purpose of this review is to provide an overview of the most relevant data reported in literature on the natural compounds, mainly phytochemicals, with antioxidant activity and their potential protective effects on age-related diseases such as metabolic syndrome, diabetes, cardiovascular disease, cancer, neurodegenerative disease, and chronic inflammation, and possibly lower side effects, when compared to other drugs.
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Affiliation(s)
- Cinzia Forni
- Department of Biology, University of Rome “Tor Vergata”, Rome, Italy
| | - Francesco Facchiano
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Manuela Bartoli
- Department of Ophthalmology, Medical College of Georgia at Augusta University, Augusta, GA, USA
| | - Stefano Pieretti
- National Center for Drug Research and Evaluation, Istituto Superiore di Sanità, Rome, Italy
| | - Antonio Facchiano
- Laboratory of Molecular Oncology, Istituto Dermopatico dell'Immacolata, IDI-IRCCS, Rome, Italy
| | - Daniela D'Arcangelo
- Laboratory of Molecular Oncology, Istituto Dermopatico dell'Immacolata, IDI-IRCCS, Rome, Italy
| | - Sandro Norelli
- Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy
| | - Giorgia Valle
- Department of Biology, University of Rome “Tor Vergata”, Rome, Italy
| | - Roberto Nisini
- Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy
| | - Simone Beninati
- Department of Biology, University of Rome “Tor Vergata”, Rome, Italy
| | | | - Ravirajsinh N. Jadeja
- Department of Biochemistry and Molecular Biology, Medical College of Georgia at Augusta University, Augusta, GA, USA
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38
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Silva CDS, Figueiredo HMD, Stamford TLM, Silva LHMD. Inhibition of Listeria monocytogenes by Melaleuca alternifolia (tea tree) essential oil in ground beef. Int J Food Microbiol 2019; 293:79-86. [DOI: 10.1016/j.ijfoodmicro.2019.01.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 01/08/2019] [Accepted: 01/09/2019] [Indexed: 02/07/2023]
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Juliano C, Marchetti M, Pisu ML, Usai M. In Vitro Antimicrobial Activity of Essential Oils from Sardinian Flora against Cutibacterium (Formerly Propionibacterium) acnes and Its Enhancement by Chitosan. Sci Pharm 2018; 86:scipharm86030040. [PMID: 30217104 DOI: 10.3390/scipharm86030040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 09/09/2018] [Accepted: 09/11/2018] [Indexed: 02/06/2023] Open
Abstract
The in vitro antibacterial activity of some essential oils from Sardinian flora, both alone and in combination with chitosan, was investigated against a strain of Cutibacterium acnes, a bacterium involved in pathogenesis of acne. The composition of the essential oils was determined by gas chromatography and gas chromatography/mass spectrometry. The results of this investigation demonstrated that some of the oils examined, characterised by different chemical profiles, possessed some activity against C. acnes. Interestingly, this antibacterial effect was enhanced by sub-inhibitory concentrations of chitosan. These observations suggest the potential application of this synergy in the development of innovative topical formulations useful in the management of acne.
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Affiliation(s)
- Claudia Juliano
- Dipartimento di Chimica e Farmacia, Università degli Studi di Sassari, via Muroni 23/A, 07100 Sassari, Italy.
| | - Mauro Marchetti
- C.N.R.-Istituto di Chimica Biomolecolare, traversa La Crucca 3, 07040 Sassari, Italy.
| | - Maria Luisa Pisu
- Dipartimento di Chimica e Farmacia, Università degli Studi di Sassari, via Muroni 23/A, 07100 Sassari, Italy.
| | - Marianna Usai
- Dipartimento di Chimica e Farmacia, Università degli Studi di Sassari, via Muroni 23/A, 07100 Sassari, Italy.
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In Vitro Evaluation of Antioxidant and Antimicrobial Activities of Melaleuca alternifolia Essential Oil. BIOMED RESEARCH INTERNATIONAL 2018; 2018:2396109. [PMID: 29854733 PMCID: PMC5960548 DOI: 10.1155/2018/2396109] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 03/04/2018] [Accepted: 03/26/2018] [Indexed: 11/18/2022]
Abstract
The in vitro antioxidant and antimicrobial activity of the essential oil from Melaleuca alternifolia (M. alternifolia) was evaluated in this report. The antioxidant potential of the essential oil from M. alternifolia was evaluated by the DPPH (2,2-diphenyl-1-picrylhydrazyl) method, thiobarbituric acid reactive species (TBARS) assay, and the hydroxyl radical scavenging activity method. The essential oil from M. alternifolia was able to reduce DPPH with an EC50 (concentration for 50% of maximal effect) of 48.35 μg/ml, inhibit the lipid peroxidation with an IC50 (50% inhibitory concentration) of 135.9 μg/ml, and eliminate hydroxyl radicals with an EC50 of 43.71 μg/ml. Antimicrobial screening, minimum inhibitory concentration, and minimum bactericidal concentration assays showed that the essential oil from M. alternifolia inhibited strongly the growth of different types of microorganisms, including Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, Penicillium italicum Wehmer, and Penicillium digitatum Sacc. Thus, the essential oil of M. alternifolia possesses antioxidant and antimicrobial activity and could be suitable for use as a natural preservative ingredient in food, agriculture, and pharmaceutical industries.
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Scotti L, Genovese S, Bucciarelli T, Martini F, Epifano F, Fiorito S, Preziuso F, Taddeo VA. Analysis of biologically active oxyprenylated phenylpropanoids in Tea tree oil using selective solid-phase extraction with UHPLC-PDA detection. J Pharm Biomed Anal 2018; 154:174-179. [PMID: 29549856 DOI: 10.1016/j.jpba.2018.03.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 03/01/2018] [Accepted: 03/02/2018] [Indexed: 02/08/2023]
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Zhang J, Wu H, Jiang D, Yang Y, Tang W, Xu K. The antifungal activity of essential oil from Melaleuca leucadendra (L.) L. grown in China and its synergistic effects with conventional antibiotics against Candida. Nat Prod Res 2018. [PMID: 29537894 DOI: 10.1080/14786419.2018.1448979] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Jing Zhang
- Anhui Prevention and Treatment Center for Occupational Disease, Anhui No. 2 Province People’s Hospital, Hefei, China
| | - Huihui Wu
- Anhui Prevention and Treatment Center for Occupational Disease, Anhui No. 2 Province People’s Hospital, Hefei, China
| | - Dan Jiang
- Anhui Prevention and Treatment Center for Occupational Disease, Anhui No. 2 Province People’s Hospital, Hefei, China
| | - Yongan Yang
- Jiangsu Nature Biological Engineering Technology Co., Ltd, Nanjing, China
| | - Wenjian Tang
- School of Pharmacy, Anhui Medical University, Hefei, China
| | - Kehan Xu
- School of Basic Medical, Anhui Medical University, Hefei, China
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Abstract
Complementary and alternative medicine approaches are popular among some patient segments due to the perception that they are "natural" and thus are believed to be less likely to be dangerous, to be less toxic, or to cause fewer side effects. In dermatology, these can include aromatherapy, botanicals, and essential oils (plant extracts). Preliminary evidence, biological activity studies, and small pilot clinical trials conducted outside of North America, mostly in young adults, suggest that some may have value in acne treatment. When additional research and larger clinical trials are conducted, both clinicians and patients will be able to understand the risks and benefits compared with allopathic remedies.
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Affiliation(s)
- Warren J Winkelman
- Nestlé Skin Health Investigation, Education, Longevity Development (SHIELD), New York, NY.
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44
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Owen L, Laird K. Synchronous application of antibiotics and essential oils: dual mechanisms of action as a potential solution to antibiotic resistance. Crit Rev Microbiol 2018; 44:414-435. [PMID: 29319372 DOI: 10.1080/1040841x.2018.1423616] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Antibiotic resistance has increased dramatically in recent years, yet the antibiotic pipeline has stalled. New therapies are therefore needed to continue treating antibiotic resistant infections. One potential strategy currently being explored is the use of non-antibiotic compounds to potentiate the activity of currently employed antibiotics. Many natural products including Essential Oils (EOs) possess broad spectrum antibacterial activity and so have been investigated for this purpose. This article aims to review recent literature concerning the antibacterial activity of EOs and their interactions with antibiotics, with consideration of dual mechanisms of action of EOs and antibiotics as a potential solution to antibiotic resistance. Synergistic interactions between EOs and their components with antibiotics have been reported, including several instances of antibiotic resensitization in resistant isolates, in support of this strategy to control antibiotic resistance. However, a lack of consistency in methods and interpretation criteria makes drawing conclusions of efficacy of studied combinations difficult. Synergistic effects are often not explored beyond preliminary identification of antibacterial interactions and mechanism of action is rarely defined, despite many hypotheses and recommendations for future study. Much work is needed to fully understand EO-antibiotic associations before they can be further developed into novel antibacterial formulations.
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Affiliation(s)
- Lucy Owen
- a Infectious Disease Research Group, The School of Pharmacy , De Montfort University , Leicester , UK
| | - Katie Laird
- a Infectious Disease Research Group, The School of Pharmacy , De Montfort University , Leicester , UK
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45
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Ganguly R, Kunwar A, Kota S, Kumar S, Aswal V. Micellar structural transitions and therapeutic properties in tea tree oil solubilized pluronic P123 solution. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2017.10.045] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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46
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Grobel H, Murphy SA. Acne Vulgaris and Acne Rosacea. Integr Med (Encinitas) 2018. [DOI: 10.1016/b978-0-323-35868-2.00077-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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47
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Tan AU, Schlosser BJ, Paller AS. A review of diagnosis and treatment of acne in adult female patients. Int J Womens Dermatol 2017; 4:56-71. [PMID: 29872679 PMCID: PMC5986265 DOI: 10.1016/j.ijwd.2017.10.006] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 10/11/2017] [Accepted: 10/11/2017] [Indexed: 01/19/2023] Open
Abstract
This review focuses on the treatment options for adult female patients with acne. Acne in adult female patients may start during adolescence and persist or have an onset in adulthood. Acne has various psychosocial effects that impact patients’ quality of life. Treatment of acne in adult women specifically has its challenges due to the considerations of patient preferences, pregnancy, and lactation. Treatments vary widely and treatment should be tailored specifically for each individual woman. We review conventional therapies with high levels of evidence, additional treatments with support from cohort studies and case reports, complementary and/or alternative therapies, and new agents under development for the treatment of patients with acne.
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Affiliation(s)
- A U Tan
- Northwestern University, Department of Dermatology, Chicago, IL
| | - B J Schlosser
- Northwestern University, Department of Dermatology, Chicago, IL
| | - A S Paller
- Northwestern University, Department of Dermatology, Chicago, IL
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Development and Sequential Analysis of a New Multi-Agent, Anti-Acne Formulation Based on Plant-Derived Antimicrobial and Anti-Inflammatory Compounds. Int J Mol Sci 2017; 18:ijms18010175. [PMID: 28106736 PMCID: PMC5297807 DOI: 10.3390/ijms18010175] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Revised: 01/05/2017] [Accepted: 01/10/2017] [Indexed: 11/25/2022] Open
Abstract
The antibacterial and anti-inflammatory potential of natural, plant-derived compounds has been reported in many studies. Emerging evidence indicates that plant-derived essential oils and/or their major compounds may represent a plausible alternative treatment for acne, a prevalent skin disorder in both adolescent and adult populations. Therefore, the purpose of this study was to develop and subsequently analyze the antimicrobial activity of a new multi-agent, synergic formulation based on plant-derived antimicrobial compounds (i.e., eugenol, β-pinene, eucalyptol, and limonene) and anti-inflammatory agents for potential use in the topical treatment of acne and other skin infections. The optimal antimicrobial combinations selected in this study were eugenol/β-pinene/salicylic acid and eugenol/β-pinene/2-phenoxyethanol/potassium sorbate. The possible mechanisms of action revealed by flow cytometry were cellular permeabilization and inhibition of efflux pumps activity induced by concentrations corresponding to sub-minimal inhibitory (sub-MIC) values. The most active antimicrobial combination represented by salycilic acid/eugenol/β-pinene/2-phenoxyethanol/potassium sorbate was included in a cream base, which demonstrated thermodynamic stability and optimum microbiological characteristics.
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Yadav E, Kumar S, Mahant S, Khatkar S, Rao R. Tea tree oil: a promising essential oil. JOURNAL OF ESSENTIAL OIL RESEARCH 2016. [DOI: 10.1080/10412905.2016.1232665] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Fox L, Csongradi C, Aucamp M, du Plessis J, Gerber M. Treatment Modalities for Acne. Molecules 2016; 21:E1063. [PMID: 27529209 PMCID: PMC6273829 DOI: 10.3390/molecules21081063] [Citation(s) in RCA: 128] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 07/26/2016] [Accepted: 08/08/2016] [Indexed: 01/19/2023] Open
Abstract
Acne is a common inflammatory skin disease which affects the pilosebaceous units of the skin. It can have severe psychological effects and can leave the patient with severe skin scarring. There are four well-recognized pathological factors responsible for acne which is also the target for acne therapy. In this review, different treatment options are discussed, including topical (i.e., retinoids, and antibiotics) and systemic (i.e., retinoids, antibiotics, and hormonal) treatments. Since the general public has been showing an increasing interest in more natural and generally safer treatment options, the use of complementary and alternative medicines (CAM) for treating acne was also discussed. The use of physical therapies such as comedone extraction, cryoslush therapy, cryotherapy, electrocauterization, intralesional corticosteroids and optical treatments are also mentioned. Acne has been extensively researched with regards to the disease mechanism as well as treatment options. However, due to the increasing resistance of Propionibacterium acnes towards the available antibiotics, there is a need for new treatment methods. Additionally, the lack of necessary evidence on the efficacy of CAM therapies makes it necessary for researchers to investigate these treatment options further.
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Affiliation(s)
- Lizelle Fox
- Centre of Excellence for Pharmaceutical Sciences, North-West University, Private Bag X6001, Potchefstroom 2520, South Africa.
| | - Candice Csongradi
- Centre of Excellence for Pharmaceutical Sciences, North-West University, Private Bag X6001, Potchefstroom 2520, South Africa.
| | - Marique Aucamp
- Centre of Excellence for Pharmaceutical Sciences, North-West University, Private Bag X6001, Potchefstroom 2520, South Africa.
| | - Jeanetta du Plessis
- Centre of Excellence for Pharmaceutical Sciences, North-West University, Private Bag X6001, Potchefstroom 2520, South Africa.
| | - Minja Gerber
- Centre of Excellence for Pharmaceutical Sciences, North-West University, Private Bag X6001, Potchefstroom 2520, South Africa.
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