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Assaggaf H, El Hachlafi N, Elbouzidi A, Taibi M, Alnasser SM, Bendaif H, Aalilou Y, Qasem A, Attar A, Bouyahya A, Ardianto C, Ming LC, Goh KW, Fikri-Benbrahim K, Mrabti HN. Exploring the antidiabetic and anti-inflammatory potential of Lavandula officinalis essential oil: In vitro and in silico insights. Heliyon 2024; 10:e34135. [PMID: 39170293 PMCID: PMC11336354 DOI: 10.1016/j.heliyon.2024.e34135] [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: 02/23/2024] [Revised: 04/29/2024] [Accepted: 07/03/2024] [Indexed: 08/23/2024] Open
Abstract
Medicinal plants have been utilized for centuries in traditional medicine systems worldwide, providing a rich source of bioactive compounds with diverse biological activities. Lavandula officinalis, a member of the Lamiaceae family, has been recognized for its multifaceted pharmacological activities. In this current investigation, our primary objective was to scrutinize the in vitro inhibitory potential of L. officinalis essential oil (LOEO) against alpha-amylase and alpha-glucosidase, with the aim of understanding its antidiabetic effects. Additionally, the assay encompassed tyrosinase and lipoxygenase (LOX) to assess its anti-inflammatory attributes. Unraveling the underlying molecular mechanisms of these activities prompted an in-silico study. The purpose was to establish correlations between in-vitro observations and computational insights derived from molecular docking, which forecasts the interaction of LOEO molecules with their respective targets, alongside ADMET prediction. The Gas Chromatography-Mass Spectrometry (GC-MS) analysis allow to identify eighteen compounds, with the dominance of L-camphor (43.12 %), 1,8-cineole (34.27 %) and borneol (8.60 %) in LOEO. The antidiabetic evaluation revealed that LOEO exhibited noteworthy inhibitory activity against both α-amylase and α-glucosidase, displaying IC50 values of 3.14 ± 0.05 mg/mL and 2.07 ± 0.03 mg/mL, respectively. The subsequent in-silico study highlighted the particularly strong binding affinity of (E)-Farnesene, with a binding score of -7.4 kcal/mol for alpha-glucosidase, while Germacrene D displayed the highest affinity among the ligands (-7.9 kcal/mol) for the alpha-amylase target. Furthermore, the investigation into in vitro anti-inflammatory activity unveiled LOEO efficacy against tyrosinase (IC50 = 42.74 μg/mL) and LOX (IC50 = 11.58 ± 0.07 μg/mL). The in-silico analysis echoed these findings, indicating α-Cadinene's notable binding affinity of 6 kcal/mol with tyrosinase and α-Cedrene's binding score of -6.5 kcal/mol for LOX. Impressively, for both COX-1 and COX-2, α-Cedrene exhibited significant binding affinities of -7.6 and -7.3 kcal/mol, respectively. The convergence between the in vitro and in silico outcomes underscores the potential of LOEO and its constituent compounds as potent inhibitors targeting both diabetes and the inflammatory processes.
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Affiliation(s)
- Hamza Assaggaf
- Department of Laboratory Medicine, Faculty of Applied Medical Sciences, Umm Al-Qura University, Makkah, 21955, Saudi Arabia
| | - Naoufal El Hachlafi
- Laboratory of Microbial Biotechnology and Bioactive Molecules, Faculty of Sciences and Technologies Faculty, Sidi Mohamed Ben Abdellah University, P.O. Box 2202, Imouzzer Road, Fez, Morocco
- Laboratories of Pharmacology and Toxicology, Pharmaceutical and Toxicological Analysis Research Team, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Rabat, Morocco
| | - Amine Elbouzidi
- Laboratoire d’Amélioration des Productions Agricoles, Biotechnologie et Environnement (LAPABE), Faculté des Sciences, Morocco des Sciences, Université Mohammed Premier, Oujda, 60000, Morocco
| | - Mohamed Taibi
- Laboratoire d’Amélioration des Productions Agricoles, Biotechnologie et Environnement (LAPABE), Faculté des Sciences, Morocco des Sciences, Université Mohammed Premier, Oujda, 60000, Morocco
- Centre de l’Oriental des Sciences et Technologies de l’Eau et de l’Environnement (COSTEE), Université Mohammed Premier, Oujda, 60000, Morocco
| | - Sulaiman Mohammed Alnasser
- Department of Pharmacology and Toxicology, College of Pharmacy, Qassim University, Qassim, 51452, Saudi Arabia
| | - Hajar Bendaif
- Laboratoire des Ressources Naturelles et Environnement, Faculté Polydisciplinaire de Taza, Morocco
| | - Youssra Aalilou
- Laboratories of Pharmacology and Toxicology, Pharmaceutical and Toxicological Analysis Research Team, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Rabat, Morocco
| | - Ahmed Qasem
- Department of Laboratory Medicine, Faculty of Applied Medical Sciences, Umm Al-Qura University, Makkah, 21955, Saudi Arabia
| | - Ammar Attar
- Department of Laboratory Medicine, Faculty of Applied Medical Sciences, Umm Al-Qura University, Makkah, 21955, Saudi Arabia
| | - Abdelhakim Bouyahya
- Laboratory of Human Pathologies Biology, Faculty of Sciences, Mohammed V University in Rabat, Rabat, 10106, Morocco
| | - Chrismawan Ardianto
- Department of Pharmacy Practice, Faculty of Pharmacy, Universitas Airlangga, Surabaya, Indonesia
| | - Long Chiau Ming
- Department of Pharmacy Practice, Faculty of Pharmacy, Universitas Airlangga, Surabaya, Indonesia
- School of Medical and Life Sciences, Sunway University, Sunway City, 47500, Malaysia
- Pengiran Anak Puteri Rashidah Sa'adatul Bolkiah Institute of Health Sciences, Universiti Brunei Darussalam, Gadong, BE1410, Brunei Darussalam
| | - Khang Wen Goh
- Faculty of Data Science and Information Technology, INTI International University, Nilai, Malaysia
| | - Kawtar Fikri-Benbrahim
- Laboratory of Microbial Biotechnology and Bioactive Molecules, Faculty of Sciences and Technologies Faculty, Sidi Mohamed Ben Abdellah University, P.O. Box 2202, Imouzzer Road, Fez, Morocco
| | - Hanae Naceiri Mrabti
- High Institute of Nursing Professions and Health Techniques Casablanca, Casablanca, 20250, Morocco
- Euromed Research Center, Euromed Faculty of Pharmacy, School of Engineering and Biotechnology, Euromed University of Fes (UEMF), Meknes Road, Fez, 30000, Morocco
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Burke BE, Baillie JE. Randomized placebo controlled trial of phytoterpenes in DMSO for the treatment of plantar fasciitis. Sci Rep 2024; 14:17621. [PMID: 39085322 PMCID: PMC11291970 DOI: 10.1038/s41598-024-65979-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Accepted: 06/26/2024] [Indexed: 08/02/2024] Open
Abstract
Plantar fasciitis is the most common cause of heel pain in adults with an overall prevalence of 0.85% in the adult population of the US, affecting over 2 million adults annually. Most current treatment modalities are not supported by sufficient evidence to recommend one particular strategy over another. Topical application of analgesics for soft tissue pain is well established, however the plantar fascia presents challenges in this regard due to thick skin, fibrotic tissue, and an often thickened fat pad. Sixty-two patients with plantar fasciitis were randomized to a placebo controlled trial testing the efficacy of a topical solution of plant terpenes containing camphor, menthol, eugenol, eucalyptol, and vanillin. Skin permeation of the mixture was enhanced with 15% dimethylsulfoxide (DMSO), 1% limonene, and rosemary oil. One ml of solution was applied topically twice daily, and pain scores evaluated on Day 0, Day 1, Day 3, and Day 10. Using the validated foot function index 78.1% of patients reported an 85% or greater decrease in their total pain score by day 10 while placebo treatment was without effect (One Way ANOVA, P < 0.01). This study adapts the treatment modality of topical analgesia for soft tissue pain to a problematic area of the body and shows therapeutic promise.ClinicalTrials.gov Identifier: NCT05467631.
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Affiliation(s)
- Briant E Burke
- Institute for Biomedical Sciences, 967 East Parkcenter Blvd, Ste 205, Boise, ID, 83706, USA.
| | - Jon E Baillie
- Institute for Biomedical Sciences, 967 East Parkcenter Blvd, Ste 205, Boise, ID, 83706, USA
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Imam MW, Luqman S. Unveiling the mechanism of essential oil action against skin pathogens: from ancient wisdom to modern science. Arch Microbiol 2024; 206:347. [PMID: 38985339 DOI: 10.1007/s00203-024-03986-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 04/22/2024] [Accepted: 04/28/2024] [Indexed: 07/11/2024]
Abstract
Essential oils are among the most well-known phyto-compounds, and since ancient times, they have been utilized in medicine. Over 100 essential oils have been identified and utilized as therapies for various skin infections and related ailments. While numerous commercial medicines are available in different dosage forms to treat skin diseases, the persisting issues include their side effects, toxicity, and low efficacy. As a result, researchers are seeking novel classes of compounds as substitutes for synthetic drugs, aiming for minimal side effects, no toxicity, and high efficacy. Essential oils have shown promising antimicrobial activity against skin-associated pathogens. This review presents essential knowledge and scientific information regarding essential oil's antimicrobial capabilities against microorganisms that cause skin infections. Essential oils mechanisms against different pathogens have also been explored. Many essential oils exhibit promising activity against various microbes, which has been qualitatively assessed using the agar disc diffusion experiment, followed by determining the minimum inhibitory concentration for quantitative evaluation. It has been observed that Staphylococcus aureus and Candida albicans have been extensively researched in the context of skin-related infections and their antimicrobial activity, including established modes of action. In contrast, other skin pathogens such as Staphylococcus epidermidis, Streptococcus pyogens, Propionibacterium acnes, and Malassezia furfur have received less attention or neglected. This review report provides an updated understanding of the mechanisms of action of various essential oils with antimicrobial properties. This review explores the anti-infectious activity and mode of action of essential against distinct skin pathogens. Such knowledge can be valuable in treating skin infections and related ailments.
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Affiliation(s)
- Md Waquar Imam
- Bioprospection and Product Development Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015, Uttar Pradesh, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201001, Uttar Pradesh, India
| | - Suaib Luqman
- Bioprospection and Product Development Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015, Uttar Pradesh, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201001, Uttar Pradesh, India.
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Dziągwa-Becker M, Oleszek M. Is the Biopesticide from Tea Tree Oil an Effective and Low-Risk Alternative to Chemical Pesticides? A Critical Review. Molecules 2024; 29:3248. [PMID: 39064827 PMCID: PMC11278977 DOI: 10.3390/molecules29143248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 07/04/2024] [Accepted: 07/05/2024] [Indexed: 07/28/2024] Open
Abstract
The use of chemical pesticides in agriculture contributes to soil, water and air pollution, biodiversity loss, and injury to non-target species. The European Commission has already established a Harmonized Risk Indicator to quantify the progress in reducing the risks linked to pesticides. Therefore, there is an increasing need to promote biopesticides, or so-called low-risk pesticides (LRP). Tea tree oil (TTO) is known for its antiseptic, antimicrobial, antiviral, antifungal, and anti-inflammatory properties. TTO has been extensively studied in pest management as well as in the pharmaceutical and cosmetic industry; there are already products based on its active substances on the market. This review focuses on the overall evaluation of TTO in terms of effectiveness and safety as a biopesticide for the first time. The collected data can be an added value for further evaluation of TTO in terms of the authorization extension as a fungicide in 2026.
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Affiliation(s)
- Magdalena Dziągwa-Becker
- Department of Weed Science and Tillage Systems, Institute of Soil Science and Plant Cultivation, State Research Institute, Wrocław ul. Orzechowa 61, 50-540 Wrocław, Poland
| | - Marta Oleszek
- Department of Biochemistry and Crop Quality, Institute of Soil Science and Plant Cultivation, State Research Institute, Czartoryskich 8, 24-100 Puławy, Poland;
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Visan AI, Negut I. Coatings Based on Essential Oils for Combating Antibiotic Resistance. Antibiotics (Basel) 2024; 13:625. [PMID: 39061307 PMCID: PMC11273621 DOI: 10.3390/antibiotics13070625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Revised: 06/24/2024] [Accepted: 07/03/2024] [Indexed: 07/28/2024] Open
Abstract
In the current era of widespread antimicrobial resistance, the utilization of essential oils (EOs) derived from plants has emerged as a promising alternative in combating pathogens that have developed resistance to antibiotics. This review explores the therapeutic potential of essential oils as valuable tools in restoring the efficacy of antibiotics, highlighting their unique ability to affect bacteria in multiple ways and target various cellular systems. Despite the challenge of elucidating their precise mode of action, EOs have shown remarkable results in rigorous testing against a diverse range of bacteria. This review explores the multifaceted role of EOs in combating bacterial microorganisms, emphasizing their extraction methods, mechanisms of action, and comparative efficacy against synthetic antibiotics. Key findings underscore the unique strategies EOs deploy to counter bacteria, highlighting significant differences from conventional antibiotics. The review extends to advanced coating solutions for medical devices, exploring the integration of EO formulations into these coatings. Challenges in developing effective EO coatings are addressed, along with various innovative approaches for their implementation. An evaluation of these EO coatings reveals their potential as formidable alternatives to traditional antibacterial agents in medical device applications. This renaissance in exploring natural remedies emphasizes the need to combine traditional wisdom with modern scientific advancements to address the urgent need for effective antimicrobial solutions in the post-antibiotic era.
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Affiliation(s)
| | - Irina Negut
- National Institute for Lasers, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Ilfov, Romania;
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Guan Y, Lu S, Sun Y, Zhang R, Lu X, Pang L, Wang L. Effect of Tea Tree Essential Oil on the Quality, Antioxidant Activity, and Microbiological Safety of Lightly Processed Lily ( Lilium brownii var. viridulum) during Storage. Foods 2024; 13:2106. [PMID: 38998612 PMCID: PMC11241024 DOI: 10.3390/foods13132106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2024] [Revised: 06/14/2024] [Accepted: 06/19/2024] [Indexed: 07/14/2024] Open
Abstract
The Lanzhou lily is a regionally distinctive vegetable; the emergence of lightly processed lilies has addressed the inconvenience of consuming fresh lilies. However, the cleaning and impurity removal during the processing of lightly processed lily may strip off its original protective barrier and affect the edible quality. As one of the preservation methods, tea tree essential oil (TTEO) has the characteristics of being green, safe, and efficient preservative properties. This study focused on investigating the effects of different concentrations (25 μL/L, 50 μL/L, and 100 μL/L) of TTEO on the quality and microbiological safety of lightly processed lily. The results showed that compared with the control, appropriate concentrations of TTEO treatment could delay weight loss, improve appearance, firmness, and sensory quality, and maintain microbiological safety with the best effect observed at 50 μL/L. Meanwhile, TTEO treatment induced phenylalanine ammonia-lyase activity, thereby increasing the total phenolic content. Furthermore, TTEO enhanced the superoxide dismutase (SOD) and ascorbate peroxidase (APX) activity, which reduced O2-· production rate and H2O2 content. TTEO inhibited lipoxygenase (LOX) activity, reducing the relative conductivity and malondialdehyde content, thereby delaying lipid peroxidation and quality deterioration. This indicates that TTEO could enhance antioxidant capacity by regulating reactive oxygen species (ROS) metabolism and delay the quality deterioration of lightly processed lily by inhibiting lipid peroxidation.
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Affiliation(s)
- Yuge Guan
- School of Food and Health, Zhejiang Agricultural and Forestry University, Hangzhou 311300, China
| | - Sainan Lu
- School of Food and Health, Zhejiang Agricultural and Forestry University, Hangzhou 311300, China
| | - Yan Sun
- School of Food and Health, Zhejiang Agricultural and Forestry University, Hangzhou 311300, China
| | - Rentao Zhang
- School of Food and Health, Zhejiang Agricultural and Forestry University, Hangzhou 311300, China
| | - Xinghua Lu
- School of Food and Health, Zhejiang Agricultural and Forestry University, Hangzhou 311300, China
| | - Linjiang Pang
- School of Food and Health, Zhejiang Agricultural and Forestry University, Hangzhou 311300, China
| | - Lei Wang
- Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
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Roy S, Ghosh A, Majie A, Karmakar V, Das S, Dinda SC, Bose A, Gorain B. Terpenoids as potential phytoconstituent in the treatment of diabetes: From preclinical to clinical advancement. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 129:155638. [PMID: 38728916 DOI: 10.1016/j.phymed.2024.155638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 03/21/2024] [Accepted: 04/13/2024] [Indexed: 05/12/2024]
Abstract
BACKGROUND Diabetes mellitus, a hyperglycemic condition associated with multitudinous organ dysfunction, is a hallmark of the metabolic disorder. This life-threatening condition affects millions of individuals globally, harming them financially, physically and psychologically in the course of therapy. PURPOSES The course therapy for illnesses has undergone ground-breaking transformations due to recent technical advances and insights. Alternatively, the administration of hyperglycemia-reducing agents results in several complications, including severe cardiovascular disease, kidney failure, hepatic problems, and several dermatological conditions. Consideration of alternate diabetic therapy having minimal side effects or no adverse reactions has been driven by such problems. STUDY DESIGN An extensive literature study was conducted in authoritative scientific databases such as PubMed, Scopus, and Web of Science to identify the studies elucidating the bioactivities of terpenoids in diabetic conditions. METHODS Keywords including 'terpenoids', 'monoterpenes', 'diterpenes', 'sesquiterpenes', 'diabetes', 'diabetes mellitus', 'clinical trials', 'preclinical studies', and 'increased blood glucose' were used to identify the relevant research articles. The exclusion criteria, such as English language, duplication, open access, abstract only, and studies not involving preclinical and clinical research, were set. Based on these criteria, 937 relevant articles were selected for further evaluation. RESULTS Triterpenes can serve as therapeutic agents for diabetic retinopathy, peripheral neuropathy, and kidney dysfunction by inhibiting several pathways linked to hyperglycemia and its complications. Therefore, it is essential to draw special attention to these compounds' therapeutic effectiveness and provide scientific professionals with novel data. CONCLUSION This study addressed recent progress in research focussing on mechanisms of terpenoid, its by-products, physiological actions, and therapeutic applications, particularly in diabetic and associated disorders.
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Affiliation(s)
- Sukanta Roy
- School of Pharmacy, The Neotia University, Diamond Harbour Rd, Sarisha, West Bengal, India
| | - Arya Ghosh
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, India
| | - Ankit Majie
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, India
| | - Varnita Karmakar
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, India
| | - Sourav Das
- School of Pharmacy, The Neotia University, Diamond Harbour Rd, Sarisha, West Bengal, India
| | - Subas Chandra Dinda
- School of Pharmacy, The Neotia University, Diamond Harbour Rd, Sarisha, West Bengal, India
| | - Anirbandeep Bose
- School of Medical Science, Adamas University, Barbaria, Jagannathpur, Kolkata, India.
| | - Bapi Gorain
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, India.
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Prerna, Chadha J, Khullar L, Mudgil U, Harjai K. A comprehensive review on the pharmacological prospects of Terpinen-4-ol: From nature to medicine and beyond. Fitoterapia 2024; 176:106051. [PMID: 38838826 DOI: 10.1016/j.fitote.2024.106051] [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: 03/09/2024] [Revised: 06/01/2024] [Accepted: 06/01/2024] [Indexed: 06/07/2024]
Abstract
Owing to their extensive biological potential, essential oils (EOs) and their bioactive phytochemicals have gained attention from the scientific community. Within this domain, Terpinen-4-ol (T-4-ol), a bioactive monoterpene alcohol and the major constituent of tea tree oil (TTO), has made its way into translational research. Recent literature on T-4-ol strongly indicates its diverse pharmacological properties, including but not limited to antimicrobial, antivirulent, anti-oxidant, anti-inflammatory, anti-hypertensive, and anti-cancer effects. Hence, this review is the first to provide a comprehensive overview of the sources, bioavailability, safety, pharmaceutical delivery systems, and multifaceted biological properties of T-4-ol, emphasizing its medicinal potential for widescale application. The antibacterial and antifungal effectiveness of T-4-ol has been discussed, encompassing its role in combating a broad spectrum of bacterial and fungal pathogens. The review delves into the antivirulent prospects of T-4-ol, shedding light on its ability to attenuate virulence and mitigate bacterial pathogenesis. Scientific literature on the anti-oxidant and anti-inflammatory activity of T-4-ol highlighting its role in neutralizing reactive oxygen species and modulating inflammatory pathways has also been collated. Furthermore, the review elaborates on the cardioprotective and anti-hypertensive properties of T-4-ol and augments literature on its anti-cancer mechanism against various cancer cell lines. The review also provides in-depth knowledge of the pharmaceutical formulations of T-4-ol and recent knowledge about its application in clinical/field trials. The exploration of these diverse attributes positions T-4-ol as a promising candidate for further research and therapeutic repurposing in various biomedical applications.
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Affiliation(s)
- Prerna
- Department of Microbiology, Panjab University, Chandigarh, India
| | - Jatin Chadha
- Department of Microbiology, Panjab University, Chandigarh, India
| | - Lavanya Khullar
- Department of Microbiology, Panjab University, Chandigarh, India
| | - Umang Mudgil
- Department of Microbiology, Panjab University, Chandigarh, India
| | - Kusum Harjai
- Department of Microbiology, Panjab University, Chandigarh, India.
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Chioveanu FG, Niculet E, Torlac C, Busila C, Tatu AL. Beyond the Surface: Understanding Demodex and Its Link to Blepharitis and Facial Dermatoses. Clin Ophthalmol 2024; 18:1801-1810. [PMID: 38948346 PMCID: PMC11213710 DOI: 10.2147/opth.s440199] [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: 12/25/2023] [Accepted: 04/29/2024] [Indexed: 07/02/2024] Open
Abstract
Demodex represents the most frequent ectoparasite found in humans. Although Demodex mites are considered commensals of human pilosebaceous units, an abnormally high mite density can cause several ocular and cutaneous symptoms and signs, sometimes to a severe degree. Both Demodex spp. (folliculorum and brevis) play a significant part in eye pathology and facial dermatoses. These mites have been related to blepharitis, ocular rosacea, meibomian gland dysfunction and various skin diseases, including rosacea, demodicosis and seborrheic dermatitis. Understanding the importance of Demodex in both eye and skin conditions is crucial for accurate diagnosis and appropriate management strategies, which may involve targeted treatments to control the mite population and reduce associated symptoms.
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Affiliation(s)
- Flavia Giorgiana Chioveanu
- Hexamed” Ophthalmology Clinic, Braila, Romania
- Biomedical Doctoral School, “Dunarea de Jos” University, Galati, Romania
| | - Elena Niculet
- Department of Morphological and Functional Sciences, Faculty of Medicine and Pharmacy, “Dunarea de Jos” University, Galaţi, Romania
- Multidisciplinary Integrated Center of Dermatological Interface Research MIC-DIR, “Dunarea de Jos” University, Galaţi, Romania
| | - Cristina Torlac
- Biomedical Doctoral School, “Dunarea de Jos” University, Galati, Romania
- Individual Medical Office - Dentistry, Galati, Romania
| | - Camelia Busila
- Dunarea de Jos University of Galati, Faculty of Medicine and Pharmacy, Galati, Romania
- Sf. Ioan Emergency Clinical Paediatric Hospital, Galati, Romania
| | - Alin Laurentiu Tatu
- Multidisciplinary Integrated Center of Dermatological Interface Research MIC-DIR, “Dunarea de Jos” University, Galaţi, Romania
- Clinical Medical Department, Faculty of Medicine and Pharmacy, “Dunarea de Jos” University, Galaţi, Romania
- Dermatology Department, “Sf. Cuvioasa Parascheva” Clinical Hospital of Infectious Diseases, Galaţi, Romania
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Vršanská M, Veselá L, Baláková I, Kovaříková E, Jansová E, Knoll A, Voběrková S, Kubíčková L, Vaverková MD. A comprehensive study of food waste management and processing in the Czech Republic: Potential health risks and consumer behavior. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 927:172214. [PMID: 38580122 DOI: 10.1016/j.scitotenv.2024.172214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 04/01/2024] [Accepted: 04/02/2024] [Indexed: 04/07/2024]
Abstract
Food waste is currently a widely discussed phenomenon with significant economic and social consequences. One third of the food produced in the world is wasted at various points along the food supply chain. This article presents a comprehensive study that examines consumer behavior in dealing with food waste and activities in the composting process that enable waste sanitation. The survey conducted as part of this study showed that consumers want to eliminate odors, are concerned about potential infections, and generally sort less food waste. This study suggested that the addition of appropriate additives could be a solution. The results indicated that additives could eliminate negative side effects such as unpleasant odors, the presence of insects and rodents, and act as a prevention of the occurrence of pathogenic organisms. Tea tree oil showed the best positive physical and chemical properties among the additives tested (CaCO3 and citric acid) with a significant effect on inhibiting the growth of bacterial strains such as Salmonella strains and had the strongest antibacterial effect, neutralized unpleasant odors, and stabilized the waste. The use of additives could be a future solution to meet consumer demands, improve the quality of food waste and advance the circular economy to improve the sustainability of agricultural systems.
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Affiliation(s)
- Martina Vršanská
- Department of Chemistry and Biochemistry, Mendel University in Brno, třída Generála Píky 1999/5, 613 00 Brno, Czech Republic
| | - Lucie Veselá
- Department of Marketing and Trade, Faculty of Business and Economics, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic
| | - Irena Baláková
- Department of Marketing and Trade, Faculty of Business and Economics, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic
| | - Ester Kovaříková
- Department of Chemistry and Biochemistry, Mendel University in Brno, třída Generála Píky 1999/5, 613 00 Brno, Czech Republic
| | - Eva Jansová
- Department of Chemistry and Biochemistry, Mendel University in Brno, třída Generála Píky 1999/5, 613 00 Brno, Czech Republic
| | - Aleš Knoll
- Department of Animal Morphology, Physiology and Genetics, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic
| | - Stanislava Voběrková
- Department of Chemistry and Biochemistry, Mendel University in Brno, třída Generála Píky 1999/5, 613 00 Brno, Czech Republic
| | - Lea Kubíčková
- Department of Marketing and Trade, Faculty of Business and Economics, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic
| | - Magdalena Daria Vaverková
- Department of Applied and Landscape Ecology, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic; Department of Revitalization and Architecture, Institute of Civil Engineering, Warsaw University of Life Sciences, Nowoursynowska 159, 02 776 Warsaw, Poland.
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Babbar R, Sharma P, Arora R, Sharma T, Garg M, Singh S, Kumar S, Sindhu RK. Unveiling the phyto-restorative potential of ethereal distillates for atopic dermatitis: an advanced therapeutic approach. JOURNAL OF COMPLEMENTARY & INTEGRATIVE MEDICINE 2024; 0:jcim-2024-0103. [PMID: 38708994 DOI: 10.1515/jcim-2024-0103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Accepted: 04/11/2024] [Indexed: 05/07/2024]
Abstract
Atopic dermatitis is acknowledged as a vital inflammatory disorder associated with the integumentary system of the body and is characterized by the formation of thick reddish-grey scars and erythema formation on skin, prevalent amidst the populace. Numerous synthetic drugs are available for treatment like antihistamines, immunosuppressants, glucocorticoids etc., but contrarily, essential oil therapy is exclusively lime lighted to favour the purpose. The utilization of available engineered drugs, possess the marked adverse effects owing to prolonged duration of therapy and therefore, essential oils are explored well and proved to exhibit the anti-eczematic, anti-inflammatory and antipruritic properties. Ethereal distillates own the assorted and selective therapeutic properties attributable to presence of bioactive compounds liable to treat this torturous and integumentary disorder, likely lavender oil, patchouli oil, frankincense oil etc., have been found to exert their pharmacological actions by impeding the liberation and action of inflammatory mediators and immunological hyperactivities that are engaged in exacerbating this idiopathic illness. The current attempt provided the update with the aim to bring forth the naturally originated treatment that is pertinent to provide the invulnerable therapy by circumventing the noxious symptoms i.e. erythema formation and inflamed lesions.
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Affiliation(s)
- Ritchu Babbar
- Chitkara College of Pharmacy, 154025 Chitkara University , Rajpura, Punjab, India
| | - Parth Sharma
- Chitkara College of Pharmacy, 154025 Chitkara University , Rajpura, Punjab, India
| | - Rashmi Arora
- Chitkara College of Pharmacy, 154025 Chitkara University , Rajpura, Punjab, India
| | - Twinkle Sharma
- Chitkara College of Pharmacy, 154025 Chitkara University , Rajpura, Punjab, India
| | - Madhukar Garg
- Chitkara College of Pharmacy, 154025 Chitkara University , Rajpura, Punjab, India
| | - Sumitra Singh
- Department of Pharmaceutical Sciences, 29051 Guru Jambheshwar University of Science and Technology , Hisar, Haryana, India
| | - Satyender Kumar
- School of Pharmacy, 193167 Sharda University , Greater Noida, Uttar Pradesh, India
| | - Rakesh K Sindhu
- School of Pharmacy, 193167 Sharda University , Greater Noida, Uttar Pradesh, India
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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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13
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Kim JH, Park CM, Jeong HC, Jeong GH, Cha GS, Lee S, Yun CH. Production of Mono-Hydroxylated Derivatives of Terpinen-4-ol by Bacterial CYP102A1 Enzymes. J Microbiol Biotechnol 2024; 34:725-734. [PMID: 38044690 PMCID: PMC11016761 DOI: 10.4014/jmb.2310.10018] [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: 10/13/2023] [Revised: 11/20/2023] [Accepted: 11/22/2023] [Indexed: 12/05/2023]
Abstract
CYP102A1 from Bacillus megaterium is an important enzyme in biotechnology, because engineered CYP102A1 enzymes can react with diverse substrates and produce human cytochrome P450-like metabolites. Therefore, CYP102A1 can be applied to drug metabolite production. Terpinen-4-ol is a cyclic monoterpene and the primary component of essential tea tree oil. Terpinen-4-ol was known for therapeutic effects, including antibacterial, antifungal, antiviral, and anti-inflammatory. Because terpenes are natural compounds, examining novel terpenes and investigating the therapeutic effects of terpenes represent responses to social demands for eco-friendly compounds. In this study, we investigated the catalytic activity of engineered CYP102A1 on terpinen-4-ol. Among CYP102A1 mutants tested here, the R47L/F81I/F87V/E143G/L188Q/N213S/E267V mutant showed the highest activity to terpinen-4-ol. Two major metabolites of terpinen-4-ol were generated by engineered CYP102A1. Characterization of major metabolites was confirmed by liquid chromatography-mass spectrometry (LC-MS), gas chromatography-MS, and nuclear magnetic resonance spectroscopy (NMR). Based on the LC-MS results, the difference in mass-to-charge ratio of an ion (m/z) between terpinen-4-ol and its major metabolites was 16. One major metabolite was defined as 1,4-dihydroxy-p-menth-2-ene by NMR. Given these results, we speculate that another major metabolite is also a mono-hydroxylated product. Taken together, we suggest that CYP102A1 can be applied to make novel terpene derivatives.
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Affiliation(s)
- Jeong-Hoon Kim
- School of Biological Sciences and Biotechnology, Graduate School, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Chan Mi Park
- School of Biological Sciences and Technology, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Hae Chan Jeong
- School of Biological Sciences and Biotechnology, Graduate School, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Gyeong Han Jeong
- Research Division for Biotechnology, Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Research Institute (KAERI), Jeongeup 56212, Republic of Korea
| | - Gun Su Cha
- Namhae Garlic Research Institute, Namhae 52430, Republic of Korea
| | - Sungbeom Lee
- Research Division for Biotechnology, Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Research Institute (KAERI), Jeongeup 56212, Republic of Korea
- Department of Radiation Science and Technology, University of Science and Technology, Daejeon 34113, Republic of Korea
| | - Chul-Ho Yun
- School of Biological Sciences and Technology, Chonnam National University, Gwangju 61186, Republic of Korea
- Institute of Synthetic Biology for Carbon Neutralization, Chonnam National University, Gwangju 61186, Republic of Korea
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14
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Zhang R, Huang X, Wu Q, Chu S, Bai X, Zhou Y, You J, Yang C, Tan H. Multifunctional gelatin nanoparticle stabilized-Pickering emulsion hydrogel based on dextran and amikacin with controlled drug release and enhanced antibacterial capability for promoting infected wound healing. Int J Biol Macromol 2024; 262:130172. [PMID: 38360230 DOI: 10.1016/j.ijbiomac.2024.130172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 01/17/2024] [Accepted: 02/12/2024] [Indexed: 02/17/2024]
Abstract
Plant essential oils possess broad-spectral antimicrobial property, but the applications are impeded by their insolubility in water, extreme volatility, and strong irritation. Nanoparticle-stabilized emulsion (Pickering emulsion) gels are colloidal systems with ability to accommodate two immiscible phases in one system. The thick adsorption nanoparticle layers and the cross-linked networks in continuous phase could provide protective barriers for antibacterial oil and achieve on-demand controlled release. An emulsion hydrogel templated from gelatin nanoparticle-stabilized emulsion is one-pot constructed by conducting a tunable cross-linking process between oxidized dextran (Odex) and amikacin in the continuous phase and concomitantly trapping tea tree essential oil (TO) droplets in the three-dimensional network. The resulted emulsion hydrogel presents tunable gelation time, adequate mechanical strength, fascinating injectability, and self-healing capability. It is pH-responsiveness and presents controlled release of amikacin and TO, exhibiting a long-term bacteriostasis of 144 h. The emulsion hydrogel facilitates the outstanding wound healing efficiency in 14 days (95.2 ± 0.8 % of wound closure), accompanied with enhanced collagen deposition and angiogenic activities. The incorporation of TO into emulsion hydrogel system reduced its irritation and improved its biosafety, showing potential application in bacteria inhibition even as implants in vivo.
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Affiliation(s)
- Ruiyun Zhang
- College of Medicine, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Xiao Huang
- College of Medicine, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Qiaoli Wu
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Shirun Chu
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Xue Bai
- College of Medicine, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Yuanyuan Zhou
- College of Medicine, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Jing You
- School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Chen Yang
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, School of pharmacy, Chengdu University, Chengdu 610106, PR China
| | - Huan Tan
- College of Medicine, Southwest Jiaotong University, Chengdu 610031, PR China.
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15
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Rambo MKD, Lins RF, Silva FLN, Alonso A, Rambo MCD, Leal JEC, Sousa-Neto DD. Effect of cationic surfactant on the physicochemical and antibacterial properties of colloidal systems (emulsions and microemulsions). BRAZ J BIOL 2024; 84:e278013. [PMID: 38422288 DOI: 10.1590/1519-6984.278013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 01/12/2024] [Indexed: 03/02/2024] Open
Abstract
Colloidal systems have been used to encapsulate, protect and release essential oils in mouthwashes. In this study, we investigated the effect of cetylpyridinium chloride (CPC) on the physicochemical properties and antimicrobial activity of oil-in-water colloidal systems containing tea tree oil (TTO) and the nonionic surfactant polysorbate 80. Our main aim was to evaluate whether CPC could improve the antimicrobial activity of TTO, since this activity is impaired when this essential oil is encapsulated with polysorbate 80. These systems were prepared with different amounts of TTO (0-0.5% w/w) and CPC (0-0.5% w/w), at a final concentration of 2% (w/w) polysorbate 80. Dynamic light scattering (DLS) results revealed the formation of oil-swollen micelles and oil droplets as a function of TTO concentration. Increases in CPC concentrations led to a reduction of around 88% in the mean diameter of oil-swollen micelles. Although this variation was of only 20% for the oil droplets, the samples appearance changed from turbid to transparent. The surface charge of colloidal structures was also markedly affected by the CPC as demonstrated by the transition in zeta potential from slightly negative to highly positive values. Electron paramagnetic resonance (EPR) studies showed that this transition is followed by significant increases in the fluidity of surfactant monolayer of both colloidal structures. The antimicrobial activity of colloidal systems was tested against a Gram-negative (Escherichia coli) and Gram-positive (Staphylococcus aureaus) bacteria. Our results revealed that the inhibition of bacterial growth is observed for the same CPC concentration (0.05% w/w for E. coli and 0.3% w/w for S. aureus) regardless of TTO content. These findings suggest that TTO may not act as an active ingredient in polysorbate 80 containing mouthwashes.
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Affiliation(s)
- M K D Rambo
- Universidade Federal do Tocantins - UFT, Laboratório de Química, Programa de Pós-graduação em Ciências do Ambiente - Ciamb, Palmas, TO, Brasil
| | - R F Lins
- Universidade Federal do Norte do Tocantins - UFNT, Colegiado de Química, Araguaína, TO, Brasil
| | - F L N Silva
- Universidade Federal do Norte do Tocantins - UFNT, Colegiado de Química, Araguaína, TO, Brasil
| | - A Alonso
- Universidade Federal de Goiás - UFG, Instituto de Física, Goiânia, GO, Brasil
| | - M C D Rambo
- Instituto de Educação, Ciência e Tecnologia do Tocantins - IFTO, Colegiado de Matemática, Palmas, TO, Brasil
| | - J E C Leal
- Instituto de Educação, Ciência e Tecnologia do Tocantins - IFTO, Colegiado de Agronegócio, Palmas, TO, Brasil
| | - D de Sousa-Neto
- Universidade Federal do Norte do Tocantins - UFNT, Faculdade de Ciências da Saúde, Araguaína, TO, Brasil
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16
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Moreno ALDM, de Moraes Melo Neto CL, Coelho Goiato M, Moreno NVDA, dos Santos DM, de Lima CC, Lopes Motta RH, Ramacciato JC. Effect of Chlorhexidine and Tea Tree Oil on Reducing the Number of Oral Microorganisms. Eur J Dent 2024; 18:397-400. [PMID: 37532117 PMCID: PMC10959613 DOI: 10.1055/s-0043-1769900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2023] Open
Abstract
OBJECTIVES Thus, the aim of this study was to compare the effect of using two preoperative mouthwashes (0.12% chlorhexidine and 0.2% tea tree oil) on the number of colonies of oral microorganisms. MATERIALS AND METHODS Forty participants who needed to be rehabilitated with dental implants were included in this study. They were randomly divided into two groups (chlorhexidine group and tea tree group; n = 20, each). For each group, saliva samples were collected at four different times: T0 (initially)-before using the mouthwash, T1-after 1 minute of using the mouthwash, T10-after 10 minutes of using the mouthwash, and T60-after 60 minutes of using the mouthwash. At T0 and T1, saliva samples were collected before implant placement surgery, and at T10 and T60, saliva samples were collected during surgery. In each group, one saliva sample was collected at each evaluated time point for each patient, totaling 4 saliva collections per patient. MSB agar (Mitis-Salivarius-Bacitracin) and BHI agar (Brain Heart Infusion) culture media were used in each group. Microbial colony counts were performed using a magnifying glass and recorded in CFU (colony forming units)/mL. Statistical analyses were performed using the Friedman, Mann-Whitney U and Wilcoxon tests (p < 0.05). RESULTS Based on MSB agar culture medium, at T0, the number of Streptococcus mutans colonies in the chlorhexidine group was significantly higher compared with the tea tree group (p <0.05; MSB agar). The chlorhexidine group showed significantly lower CFU/mL values for Streptococcus mutans at T1, T10, and T60 compared with the tea tree group (p <0.05; MSB agar). Based on BHI agar culture medium, at T0, the chlorhexidine group showed a significantly lower value of CFU/mL compared with the tea tree group (p < 0.05; BHI agar). At T1, T10, and T60, the chlorhexidine group showed significantly lower CFU/mL values compared with the tea tree group (p <0.05; BHI agar). CONCLUSION Chlorhexidine is more indicated as a preoperative mouthwash than tea tree oil, due to its significantly more effective antimicrobial action.
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Affiliation(s)
- André Luiz de Melo Moreno
- Department of Dental Materials and Prosthodontics, São Paulo State University (UNESP), School of Dentistry, Araçatuba, São Paulo, Brazil
| | | | - Marcelo Coelho Goiato
- Department of Dental Materials and Prosthodontics, São Paulo State University (UNESP), School of Dentistry, Araçatuba, São Paulo, Brazil
- Oral Oncology Center, São Paulo State University (UNESP), School of Dentistry, Araçatuba, São Paulo, Brazil
| | | | - Daniela Micheline dos Santos
- Department of Dental Materials and Prosthodontics, São Paulo State University (UNESP), School of Dentistry, Araçatuba, São Paulo, Brazil
- Oral Oncology Center, São Paulo State University (UNESP), School of Dentistry, Araçatuba, São Paulo, Brazil
| | - Cássia Cunha de Lima
- Department of Dental Materials and Prosthodontics, São Paulo State University (UNESP), School of Dentistry, Araçatuba, São Paulo, Brazil
| | - Rogério Heládio Lopes Motta
- Area of Pharmacology, Anesthesiology and Therapeutics, São Leopoldo Mandic University, School of Dentistry, Campinas, São Paulo, Brazil
| | - Juliana Cama Ramacciato
- Area of Pharmacology, Anesthesiology and Therapeutics, São Leopoldo Mandic University, School of Dentistry, Campinas, São Paulo, Brazil
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Naccari C, Cicero N, Orlandella BM, Naccari V, Palma E. Antimicrobial activity of essential oils ( Citrus bergamia Risso & Poiteau, Melaleuca alternifolia and Chenopodium botrys) on pathogen strains isolated in milk samples from mastitic sheep. Nat Prod Res 2024:1-7. [PMID: 38164696 DOI: 10.1080/14786419.2023.2300041] [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: 10/16/2023] [Accepted: 12/20/2023] [Indexed: 01/03/2024]
Abstract
The aim of this investigation was to study in vitro antibacterial activity of essential oils (EOs) (Citrus bergamia Risso & Poiteau, Melaleuca alternifolia and Chenopodium botrys) on pathogenic strains isolated in milk samples from mastitic sheep. The in vitro antibacterial activity showed that EOs induced higher bacterial inhibition against pathogens isolated in mastitic milk (Staphylococcus xylosus, Staphylococcus epidermidis, Streptococcus salivarius, Enterococcus faecium, Streptococcus agalactiae and Pseudomonas aeruginosa) than common antimicrobial agents used in veterinary medicine, with Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) values significantly lower, excepted for P. Aeruginosa. The antibacterial activity of EOs has been attributed to the chemical composition of each phyto-complexes, constituted by monoterpenes, sesquiterpenes and their associated alcohols, identified by GC-MS analysis, with a synergic action in the bacterial cells. The results obtained confirmed in vitro antimicrobial activity of these EOs and their potential use in the treatment of sheep mastitis infection.
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Affiliation(s)
- Clara Naccari
- Department of Health Sciences, University "Magna Græcia" of Catanzaro, Catanzaro, Italy
| | - Nicola Cicero
- Department of Biomedical Sciences, Dental and Morphological and Functional Images - Food Chemistry Section, University of Messina, Messina, Italy
- Science 4 Life S.r.l, Spin-off of the University of Messina, Messina, Italy
| | | | - Vincenzo Naccari
- Azienda USL di Ferrara, Dipartimento di Sanità Pubblica, Unità Operativa Sanità Animale, Ferrara, Italy
| | - Ernesto Palma
- Department of Health Sciences, University "Magna Græcia" of Catanzaro, Catanzaro, Italy
- CIS - Centro Servizio Interdipartimentale - IRC-FSH "Centro di Ricerche Farmacologiche, Sicurezza degli alimenti e Salute ad alto contenuto tecnologico", University "Magna Græcia" of Catanzaro, Catanzaro, Italy
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Romero-Montero A, Melgoza-Ramírez LJ, Ruíz-Aguirre JA, Chávez-Santoscoy A, Magaña JJ, Cortés H, Leyva-Gómez G, Del Prado-Audelo ML. Essential-Oils-Loaded Biopolymeric Nanoparticles as Strategies for Microbial and Biofilm Control: A Current Status. Int J Mol Sci 2023; 25:82. [PMID: 38203252 PMCID: PMC10778842 DOI: 10.3390/ijms25010082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 12/01/2023] [Accepted: 12/06/2023] [Indexed: 01/12/2024] Open
Abstract
The emergence of bacterial strains displaying resistance to the currently available antibiotics is a critical global concern. These resilient bacteria can form biofilms that play a pivotal role in the failure of bacterial infection treatments as antibiotics struggle to penetrate all biofilm regions. Consequently, eradicating bacteria residing within biofilms becomes considerably more challenging than their planktonic counterparts, leading to persistent and chronic infections. Among various approaches explored, essential oils loaded in nanoparticles based on biopolymers have emerged, promising strategies that enhance bioavailability and biological activities, minimize side effects, and control release through regulated pharmacokinetics. Different available reviews analyze nanosystems and essential oils; however, usually, their main goal is the analysis of their antimicrobial properties, and progress in biofilm combat is rarely discussed, or it is not the primary objective. This review aims to provide a global vision of biofilm conformation and describes mechanisms of action attributed to each EO. Furthermore, we present a comprehensive overview of the latest developments in biopolymeric nanoparticles research, especially in chitosan- and zein-based nanosystems, targeting multidrug-resistant bacteria in both their sessile and biofilm forms, which will help to design precise strategies for combating biofilms.
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Affiliation(s)
- Alejandra Romero-Montero
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico; (A.R.-M.); (G.L.-G.)
| | - Luis Javier Melgoza-Ramírez
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Mexico City 14380, Mexico; (L.J.M.-R.); (J.A.R.-A.); (J.J.M.)
| | - Jesús Augusto Ruíz-Aguirre
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Mexico City 14380, Mexico; (L.J.M.-R.); (J.A.R.-A.); (J.J.M.)
| | - Alejandra Chávez-Santoscoy
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Campus Monterrey, Ave. Eugenio Garza Sada 2501 Sur, Monterrey 64849, Mexico;
| | - Jonathan Javier Magaña
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Mexico City 14380, Mexico; (L.J.M.-R.); (J.A.R.-A.); (J.J.M.)
- Laboratorio de Medicina Genómica, Departamento de Genómica, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Mexico City 14389, Mexico;
| | - Hernán Cortés
- Laboratorio de Medicina Genómica, Departamento de Genómica, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Mexico City 14389, Mexico;
| | - Gerardo Leyva-Gómez
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico; (A.R.-M.); (G.L.-G.)
| | - María Luisa Del Prado-Audelo
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Mexico City 14380, Mexico; (L.J.M.-R.); (J.A.R.-A.); (J.J.M.)
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19
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Jayakumar J, Vinod V, Biswas L, Kumar V A, Biswas R. Exploring alternative strategies for Staphylococcus aureus nasal decolonization: insights from preclinical studies. Lett Appl Microbiol 2023; 76:ovad137. [PMID: 38066697 DOI: 10.1093/lambio/ovad137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 11/23/2023] [Accepted: 12/07/2023] [Indexed: 12/25/2023]
Abstract
Nasal decolonization of Staphylococcus aureus with the antibiotic mupirocin is a common clinical practice before complex surgical procedures, to prevent hospital acquired infections. However, widespread use of mupirocin has led to the development of resistant S. aureus strains and there is a limited scope for developing new antibiotics for S. aureus nasal decolonization. It is therefore necessary to develop alternative and nonantibiotic nasal decolonization methods. In this review, we broadly discussed the effectiveness of different nonantibiotic antimicrobial agents that are currently not in clinical practice, but are experimentally proved to be efficacious in promoting S. aureus nasal decolonization. These include lytic bacteriophages, bacteriolytic enzymes, tea tree oil, apple vinegar, and antimicrobial peptides. We have also discussed the possibility of using photodynamic therapy for S. aureus nasal decolonization. This article highlights the importance of further large scale clinical studies for selecting the most suitable and alternative nasal decolonizing agent.
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Affiliation(s)
- Jayalakshmi Jayakumar
- Amrita School of Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - Vivek Vinod
- Amrita School of Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - Lalitha Biswas
- Amrita School of Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - Anil Kumar V
- Department of Microbiology, Amrita Institute of Medical Sciences and Research Center (AIMS), Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - Raja Biswas
- Amrita School of Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi 682041, India
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20
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Voelker J, Mauleon R, Shepherd M. A terpene synthase supergene locus determines chemotype in Melaleuca alternifolia (tea tree). THE NEW PHYTOLOGIST 2023; 240:1944-1960. [PMID: 37737003 DOI: 10.1111/nph.19262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 08/22/2023] [Indexed: 09/23/2023]
Abstract
Leaf oil terpenes vary categorically in many plant populations, leading to discrete phenotypes of adaptive and economic significance, but for most species, a genetic explanation for the concerted fluctuation in terpene chemistry remains unresolved. To uncover the genetic architecture underlying multi-component terpene chemotypes in Melaleuca alternifolia (tea tree), a genome-wide association study was undertaken for 148 individuals representing all six recognised chemotypes. A number of single nucleotide polymorphisms in a genomic region of c. 400 kb explained large proportions of the variation in key monoterpenes of tea tree oil. The region contained a cluster of 10 monoterpene synthase genes, including four genes predicted to encode synthases for 1,8-cineole, terpinolene, and the terpinen-4-ol precursor, sabinene hydrate. Chemotype-dependent null alleles at some sites suggested structural variants within this gene cluster, providing a possible basis for linkage disequilibrium in this region. Genotyping in a separate domesticated population revealed that all alleles surrounding this gene cluster were fixed after artificial selection for a single chemotype. These observations indicate that a supergene accounts for chemotypes in M. alternifolia. A genetic model with three haplotypes, encompassing the four characterised monoterpene synthase genes, explained the six terpene chemotypes, and was consistent with available biparental cross-segregation data.
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Affiliation(s)
- Julia Voelker
- Faculty of Science and Engineering, Southern Cross University, Military Road, East Lismore, NSW, 2480, Australia
| | - Ramil Mauleon
- Faculty of Science and Engineering, Southern Cross University, Military Road, East Lismore, NSW, 2480, Australia
| | - Mervyn Shepherd
- Faculty of Science and Engineering, Southern Cross University, Military Road, East Lismore, NSW, 2480, Australia
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Prasad K, Sasi S, Weerasinghe J, Levchenko I, Bazaka K. Enhanced Antimicrobial Activity through Synergistic Effects of Cold Atmospheric Plasma and Plant Secondary Metabolites: Opportunities and Challenges. Molecules 2023; 28:7481. [PMID: 38005203 PMCID: PMC10673009 DOI: 10.3390/molecules28227481] [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: 09/05/2023] [Revised: 11/02/2023] [Accepted: 11/03/2023] [Indexed: 11/26/2023] Open
Abstract
The emergence of antibiotic resistant microorganisms possesses a great threat to human health and the environment. Considering the exponential increase in the spread of antibiotic resistant microorganisms, it would be prudent to consider the use of alternative antimicrobial agents or therapies. Only a sustainable, sustained, determined, and coordinated international effort will provide the solutions needed for the future. Plant secondary metabolites show bactericidal and bacteriostatic activity similar to that of conventional antibiotics. However, to effectively eliminate infection, secondary metabolites may need to be activated by heat treatment or combined with other therapies. Cold atmospheric plasma therapy is yet another novel approach that has proven antimicrobial effects. In this review, we explore the physiochemical mechanisms that may give rise to the improved antimicrobial activity of secondary metabolites when combined with cold atmospheric plasma therapy.
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Affiliation(s)
- Karthika Prasad
- School of Engineering, College of Engineering, Computing and Cybernetics, The Australian National University, Canberra, ACT 2600, Australia; (S.S.); (J.W.); (I.L.)
| | - Syamlal Sasi
- School of Engineering, College of Engineering, Computing and Cybernetics, The Australian National University, Canberra, ACT 2600, Australia; (S.S.); (J.W.); (I.L.)
| | - Janith Weerasinghe
- School of Engineering, College of Engineering, Computing and Cybernetics, The Australian National University, Canberra, ACT 2600, Australia; (S.S.); (J.W.); (I.L.)
| | - Igor Levchenko
- School of Engineering, College of Engineering, Computing and Cybernetics, The Australian National University, Canberra, ACT 2600, Australia; (S.S.); (J.W.); (I.L.)
- Plasma Sources and Application Centre, NIE, Nanyang Technological University, Singapore 637616, Singapore
| | - Kateryna Bazaka
- School of Engineering, College of Engineering, Computing and Cybernetics, The Australian National University, Canberra, ACT 2600, Australia; (S.S.); (J.W.); (I.L.)
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Liu Y, Xu L, Du H, Feng J, Zhang W, Li H, Xu F, Lin J, Fu H, Zhao X, Zheng Y, Chang LJ, Shu G. Effects of adding tea tree oil on growth performance, immune function, and intestinal function of broilers. Poult Sci 2023; 102:102936. [PMID: 37708764 PMCID: PMC10506096 DOI: 10.1016/j.psj.2023.102936] [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: 04/15/2023] [Revised: 07/08/2023] [Accepted: 07/08/2023] [Indexed: 09/16/2023] Open
Abstract
The aim of this study was to investigate the effects of adding tea tree oil (TTO) in the basal diet on growth performance, immune function, and intestinal function in broilers. This study utilized 1,650 one-day-old broilers with good health and similar body weight. Subjects were randomized into 5 groups with 6 replicates each: the control group (CON, basal diet), positive control group (PCG, basal diet + 100 mg/kg oregano oil in diet), low-dose TTO group (TTO-L, 50 mg/kg TTO added in the basal diet), medium-dose TTO group (TTO-M, 100 mg/kg TTO added in the basal diet), and high-dose TTO group (TTO-H, 200 mg/kg TTO added in the basal diet). The whole test period lasted 28 d. The results showed that the broilers fed with TTO supplemented diet had significantly higher body weight and average daily gain (ADG) (P = 0.013), and had a lower feed conversion ratio (F/G) (P = 0.010) throughout the trial period. The index of thymus in TTO-M increased significantly compared to CON (P = 0.015) on d 28. On d 14 and 28, C3, IFN-γ, TNF-α, and IL-2 levels in TTO-L serum were significantly increased (P < 0.001); the 3 test groups supplemented with TTO had significantly higher titers of avian influenza H9 subtype in their serum (P < 0.05). Tea tree oil supplement in the diet also had a positive and significant effect on the intestinal morphology of broilers throughout the experiment (P < 0.05). These results indicate that TTO has the ability to promote broiler growth, regulate immunity, and improve intestinal morphology. The proposed dosage of adding 50 mg/kg in broiler basal diets provides a theoretical basis for its subsequent use in livestock feeds.
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Affiliation(s)
- Ying Liu
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Lu Xu
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Hong Du
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Jing Feng
- Institute of Animal Husbandry and Veterinary Medicine, Academy of Agricultural and Animal Husbandry Sciences, Tibet Autonomous Region, Lhasa, China
| | - Wei Zhang
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Haohuan Li
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Funeng Xu
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Juchun Lin
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Hualing Fu
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Xiaoling Zhao
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Yilei Zheng
- Center for Veterinary Sciences, Zhejiang University, Hangzhou, China
| | - Li-Jen Chang
- Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Washington, DC, USA
| | - Gang Shu
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.
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de Oliveira BIC, Martinez JL, de Souza FAF, Weber SH, Rosa EAR, Birgel EH, Daniel Ollhoff R. Utilizing intramammary Melaleuca alternifolia as an organic internal sealant for dry-off therapy in Murrah buffaloes. Trop Anim Health Prod 2023; 55:381. [PMID: 37884761 DOI: 10.1007/s11250-023-03797-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 10/10/2023] [Indexed: 10/28/2023]
Abstract
The effects of intramammary dry cow therapy based on the administration of 5% Melaleuca alternifolia tea tree essential oil (TTO) as an internal teat sealant to Murrah cows were evaluated. A longitudinal prospective and retrospective negative control study was performed using 12 buffaloes from a total of 20 Murrah buffaloes on an organic farm, with the cow used as a control for herself. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) for treatments with pure oil (TTO) and medication containing 5% TTO (O5) were determined. The buffaloes were clinically examined, and the teats were evaluated using thermography and ultrasound. Udder health was monitored during the first 100 days in milk (DIM) using milk somatic cell count (SCC) and California mastitis test (CMT). Laboratory tests against standard strains Staphylococcus aureus ATCC®25,923™, Escherichia coli ATCC®25,922™, and wild bacterial strains showed maximum MIC values of 50 µL/mL for the TTO and O5 treatments. One wild-type S. aureus strain showed no MBC. No adverse effects were observed after the intramammary application of TTO. The CMT and SCC values were similar (P > 0.05) for all observations. The medication containing 5% TTO was effective in vitro and compatible with the intramammary tissue in vivo of Murrah buffaloes. TTO was safe, not inducing inflammatory processes or other modifications of the teat detectable by thermography or ultrasound. It was able to protect buffaloes during the dry period under field conditions, demonstrating potential use as a teat sealant for organic farms.
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Affiliation(s)
- Bruno I C de Oliveira
- Programa de Pós-Graduação Em Ciência Animal, Pontifícia Universidade Católica Do Paraná, Curitiba, Paraná, Brazil
- Faculdade de Ciências Sociais E Agrárias de Itapeva, Itapeva, São Paulo, Brazil
| | | | - Francinea A F de Souza
- Programa de Pós-Graduação Em Ciência Animal, Pontifícia Universidade Católica Do Paraná, Curitiba, Paraná, Brazil
- Universidade Cesumar, Curitiba, Paraná, Brazil
| | - Saulo H Weber
- Programa de Pós-Graduação Em Ciência Animal, Pontifícia Universidade Católica Do Paraná, Curitiba, Paraná, Brazil
| | - Edvaldo A R Rosa
- Programa de Pós-Graduação Em Ciência Animal, Pontifícia Universidade Católica Do Paraná, Curitiba, Paraná, Brazil
| | - Eduardo H Birgel
- Faculdade de Zootecnia E Engenharia de Alimentos, Universidade de São Paulo, Pirassununga, São Paulo, Brazil
| | - R Daniel Ollhoff
- Programa de Pós-Graduação Em Ciência Animal, Pontifícia Universidade Católica Do Paraná, Curitiba, Paraná, Brazil.
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Filatov VA, Ilin EA, Kulyak OY, Kalenikova EI. Development and Validation of a Gas Chromatography-Mass Spectrometry Method for the Analysis of the Novel Plant-Based Substance with Antimicrobial Activity. Antibiotics (Basel) 2023; 12:1558. [PMID: 37887259 PMCID: PMC10603869 DOI: 10.3390/antibiotics12101558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 10/18/2023] [Accepted: 10/20/2023] [Indexed: 10/28/2023] Open
Abstract
The research into new pharmaceutical substances based on essential oils, individual biologically active phytochemicals, and plant extracts is a priority in field of pharmaceutical sciences. A novel multicomponent substance based on Melaleuca alternifolia (M. alternifolia) leaf oil (TTO), 1,8-cineole (eucalyptol), and (-)-α-bisabolol with potent synergetic antimicrobial activity was investigated and suggested for the treatment of seborrheic dermatitis (SD) and dandruff. The objective of this research was to establish and validate a specific, accurate, and precise gas chromatography-mass spectrometry (GC-MS) method for further quantitative and qualitative analysis in order to ensure quality control. The main parameters of validation were suitability, specificity, linearity, accuracy, and intermediate precision according to the European Pharmacopoeia (XI edition), Russian Pharmacopoeia (XIV edition), and some parameters of ICH requirements. The peaks of fifteen chemical phytoconstituents were identified in the test sample solution with the prevalence of (-)-α-bisabolol (27.67%), 1,8-cineole (25.63%), and terpinen-4-ol (16.98%). These phytochemicals in the novel substance were chosen for standardization and validation of the GC-MS method. The chosen chromatographic conditions were confirmed for testing of the plant-based substance in a suitability test. It was established that the GC-MS method provides a significant separation, symmetry of peaks and resolution between phytochemicals. The calibration curves of each phytochemical had good linearity (R2 > 0.999) in five concentrations. In the same concertation range, the accuracy of terpinen-4-ol, 1,8-cineol, and (-)-α-bisabolol determination using the method of additives was 98.3-101.60%; the relative standard deviation (RSD) ranged from 0.89% to 1.51% and corresponded to requirements. The intraday and interday precision was ≤2.56%. Thus, the GC-MS method was validated to be specific, sensitive, linear, accurate, and precise. This GC-MS method could be recommended as a routine analytic technique for multicomponent plant-based substances-enriched terpenes.
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Affiliation(s)
- Viktor A. Filatov
- Department of Pharmaceutical Chemistry and Organization of Pharmaceutical Business, Faculty of Basic Medicine, Lomonosov Moscow State University, 119991 Moscow, Russia; (O.Y.K.); (E.I.K.)
- Science Center, SkyLab AG, 1066 Lausanne, Switzerland
| | - Egor A. Ilin
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia;
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Russia
| | - Olesya Yu. Kulyak
- Department of Pharmaceutical Chemistry and Organization of Pharmaceutical Business, Faculty of Basic Medicine, Lomonosov Moscow State University, 119991 Moscow, Russia; (O.Y.K.); (E.I.K.)
- All-Russian Scientific Research Institute of Medicinal and Aromatic Plants, 117216 Moscow, Russia
| | - Elena I. Kalenikova
- Department of Pharmaceutical Chemistry and Organization of Pharmaceutical Business, Faculty of Basic Medicine, Lomonosov Moscow State University, 119991 Moscow, Russia; (O.Y.K.); (E.I.K.)
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Manzanelli FA, Ravetti S, Brignone SG, Garro AG, Martínez SR, Vallejo MG, Palma SD. Enhancing the Functional Properties of Tea Tree Oil: In Vitro Antimicrobial Activity and Microencapsulation Strategy. Pharmaceutics 2023; 15:2489. [PMID: 37896249 PMCID: PMC10610334 DOI: 10.3390/pharmaceutics15102489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 10/12/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023] Open
Abstract
In the context of addressing antimicrobial drug resistance in periocular infections, Tea Tree Oil (TTO) has emerged as a promising therapeutic option. This study aimed to assess the efficacy of TTO against bacterial strains isolated from ocular infections, with a particular focus on its ability to inhibit biofilm formation. Additionally, we designed and analyzed microcapsules containing TTO to overcome certain unfavorable physicochemical properties and enhance its inherent biological attributes. The quality of TTO was confirmed through rigorous analysis using GC-MS and UV-Vis techniques. Our agar diffusion assay demonstrated the effectiveness of Tea Tree Oil (TTO) against ocular bacterial strains, including Corynebacterium spp., coagulase-negative Staphylococcus spp., and Staphylococcus aureus, as well as a reference strain of Staphylococcus aureus (ATCC 25923). Notably, the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) for all tested microorganisms were found to be 0.2% and 0.4%, respectively, with the exception of Corynebacterium spp., which exhibited resistance to TTO. Furthermore, TTO exhibited a substantial reduction in biofilm biomass, ranging from 30% to 70%, as determined by the MTT method. Through the spray-drying technique, we successfully prepared two TTO-containing formulations with high encapsulation yields (80-85%), microencapsulation efficiency (90-95%), and embedding rates (approximately 40%). These formulations yielded microcapsules with diameters of 6-12 μm, as determined by laser scattering particle size distribution analysis, and exhibited regular, spherical morphologies under scanning electron microscopy. Importantly, UV-Vis analysis post-encapsulation confirmed the presence of TTO within the capsules, with preserved antioxidant and antimicrobial activities. In summary, our findings underscore the substantial therapeutic potential of TTO and its microcapsules for treating ocular infections.
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Affiliation(s)
- Franco Antonio Manzanelli
- Centro de Investigaciones y Transferencia de Villa María (CIT VM), Villa María 5900, Argentina; (F.A.M.); (S.R.)
| | - Soledad Ravetti
- Centro de Investigaciones y Transferencia de Villa María (CIT VM), Villa María 5900, Argentina; (F.A.M.); (S.R.)
- Instituto Académico Pedagógico de Ciencias Humanas, Universidad Nacional de Villa María, Villa María 5900, Argentina;
| | - Sofia Gisella Brignone
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA), CONICET, Córdoba 5000, Argentina; (S.G.B.); (M.G.V.)
- Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba 5000, Argentina
| | - Ariel Gustavo Garro
- Instituto Académico Pedagógico de Ciencias Humanas, Universidad Nacional de Villa María, Villa María 5900, Argentina;
- Ministerio de Ciencia y Tecnología, Gobierno de Córdoba, Córdoba 5004, Argentina
| | - Sol Romina Martínez
- Instituto de Investigación en Tecnologías Energéticas y Materiales Avanzados (IITEMA), CONICET, Departamento de Química, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Río Cuarto 5804, Argentina;
| | - Mariana Guadalupe Vallejo
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA), CONICET, Córdoba 5000, Argentina; (S.G.B.); (M.G.V.)
- Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba 5000, Argentina
| | - Santiago Daniel Palma
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA), CONICET, Córdoba 5000, Argentina; (S.G.B.); (M.G.V.)
- Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba 5000, Argentina
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Yan XM, Zhou SS, Liu H, Zhao SW, Tian XC, Shi TL, Bao YT, Li ZC, Jia KH, Nie S, Guo JF, Kong L, Porth IM, Mao JF. Unraveling the evolutionary dynamics of the TPS gene family in land plants. FRONTIERS IN PLANT SCIENCE 2023; 14:1273648. [PMID: 37900760 PMCID: PMC10600500 DOI: 10.3389/fpls.2023.1273648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 09/15/2023] [Indexed: 10/31/2023]
Abstract
Terpenes and terpenoids are key natural compounds for plant defense, development, and composition of plant oil. The synthesis and accumulation of a myriad of volatile terpenoid compounds in these plants may dramatically alter the quality and flavor of the oils, which provide great commercial utilization value for oil-producing plants. Terpene synthases (TPSs) are important enzymes responsible for terpenic diversity. Investigating the differentiation of the TPS gene family could provide valuable theoretical support for the genetic improvement of oil-producing plants. While the origin and function of TPS genes have been extensively studied, the exact origin of the initial gene fusion event - it occurred in plants or microbes - remains uncertain. Furthermore, a comprehensive exploration of the TPS gene differentiation is still pending. Here, phylogenetic analysis revealed that the fusion of the TPS gene likely occurred in the ancestor of land plants, following the acquisition of individual C- and N- terminal domains. Potential mutual transfer of TPS genes was observed among microbes and plants. Gene synteny analysis disclosed a differential divergence pattern between TPS-c and TPS-e/f subfamilies involved in primary metabolism and those (TPS-a/b/d/g/h subfamilies) crucial for secondary metabolites. Biosynthetic gene clusters (BGCs) analysis suggested a correlation between lineage divergence and potential natural selection in structuring terpene diversities. This study provides fresh perspectives on the origin and evolution of the TPS gene family.
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Affiliation(s)
- Xue-Mei Yan
- National Engineering Research Center of Tree Breeding and Ecological Restoration, State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Shan-Shan Zhou
- National Engineering Research Center of Tree Breeding and Ecological Restoration, State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
- Shuangyushu No.1 Primary School, Beijing, China
| | - Hui Liu
- National Engineering Research Center of Tree Breeding and Ecological Restoration, State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Shi-Wei Zhao
- National Engineering Research Center of Tree Breeding and Ecological Restoration, State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Xue-Chan Tian
- National Engineering Research Center of Tree Breeding and Ecological Restoration, State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Tian-Le Shi
- National Engineering Research Center of Tree Breeding and Ecological Restoration, State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Yu-Tao Bao
- National Engineering Research Center of Tree Breeding and Ecological Restoration, State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Zhi-Chao Li
- National Engineering Research Center of Tree Breeding and Ecological Restoration, State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Kai-Hua Jia
- National Engineering Research Center of Tree Breeding and Ecological Restoration, State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
- Key Laboratory of Crop Genetic Improvement & Ecology and Physiology, Institute of Crop Germplasm Resources, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Shuai Nie
- National Engineering Research Center of Tree Breeding and Ecological Restoration, State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
- Rice Research Institute, Guangdong Academy of Agricultural Sciences & Key Laboratory of Genetics and Breeding of High Quality Rice in Southern China (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs & Guangdong Key Laboratory of New Technology in Rice Breeding, Guangzhou, China
| | - Jing-Fang Guo
- National Engineering Research Center of Tree Breeding and Ecological Restoration, State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
- Department of Horticulture and Food, Guangdong Eco-Engineering Polytechnic, Guangzhou, China
| | - Lei Kong
- National Engineering Research Center of Tree Breeding and Ecological Restoration, State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
- Personnel Section, Qufu Nishan National Forest Park Management Service Center, Qufu, China
| | - Ilga M. Porth
- Départment des Sciences du Bois et de la Forêt, Faculté de Foresterie, de Géographie et Géomatique, Université Laval Québec, Québec, QC, Canada
| | - Jian-Feng Mao
- National Engineering Research Center of Tree Breeding and Ecological Restoration, State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
- Department of Plant Physiology, Umeå Plant Science Centre, Umeå University, Umeå, Sweden
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Nguyen L, DeVico B, Mannan M, Chang M, Rada Santacruz C, Siragusa C, Everhart S, Fazen CH. Tea Tree Essential Oil Kills Escherichia coli and Staphylococcus epidermidis Persisters. Biomolecules 2023; 13:1404. [PMID: 37759804 PMCID: PMC10526169 DOI: 10.3390/biom13091404] [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: 08/15/2023] [Revised: 09/08/2023] [Accepted: 09/14/2023] [Indexed: 09/29/2023] Open
Abstract
Persister cells are a small subpopulation of non-growing bacteria within a population that can survive long exposures to antibiotic treatment. Following antibiotic removal, persister cells can regrow and populate, playing a key role in the chronic reoccurrence of bacterial infections. The development of new molecules and methods to kill bacterial persisters is critical. Essential oils and other natural products have long been studied for their antimicrobial effects. Here, we studied the effectiveness of tea tree essential oil (TTO), a common component in many commercial care products, against Escherichia coli and Staphylococcus epidermidis persister cells. Using biphasic kill curve assays, we found that concentrations of 0.5% and 1.0% TTO for E. coli and S. epidermidis, respectively, completely eradicated persister cells over a period of 24 h, with the component terpinen-4-ol responsible for most of the killing. Using a colorimetric assay, it was determined that the TTO exhibited its anti-persister effects through a membrane disruption mechanism.
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Affiliation(s)
| | | | | | | | | | | | | | - Christopher H. Fazen
- Department of Chemistry, Drew University, Madison, NJ 07940, USA; (L.N.); (B.D.); (M.M.); (M.C.); (C.R.S.); (C.S.); (S.E.)
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28
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Dah-Nouvlessounon D, Chokki M, Agossou EA, Houédanou JB, Nounagnon M, Sina H, Vulturar R, Heghes SC, Cozma A, Mavoungou JF, Fodor A, Baba-Moussa F, Suharoschi R, Baba-Moussa L. Polyphenol Analysis via LC-MS-ESI and Potent Antioxidant, Anti-Inflammatory, and Antimicrobial Activities of Jatropha multifida L. Extracts Used in Benin Pharmacopoeia. Life (Basel) 2023; 13:1898. [PMID: 37763302 PMCID: PMC10532662 DOI: 10.3390/life13091898] [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: 07/26/2023] [Revised: 09/08/2023] [Accepted: 09/09/2023] [Indexed: 09/29/2023] Open
Abstract
Jatropha multifida L., a plant from the Euphorbiaceae family, is commonly used in Benin's traditional medicine due to its therapeutic benefits. This study aims to explore the medicinal efficacy of Jatropha multifida L. by evaluating its various biological activities. An initial phytochemical analysis was conducted, following which the polyphenols and flavonoids were quantified and identified using LC-MS-ESI. The antimicrobial efficacy of the extracts was tested using agar diffusion. Their antioxidant capacity was assessed using several methods: DPPH radical reduction, ABTS radical cation reduction, ferric ion (FRAP) reduction, and lipid peroxidation (LPO). Anti-inflammatory activity was determined based on the inhibition of protein (specifically albumin) denaturation. The study identified several phenolic and flavonoid compounds, including 2-Hydroxybenzoic acid, o-Coumaroylquinic acid, Apigenin-apiosyl-glucoside, and luteolin-galactoside. Notably, the extracts of J. multifida demonstrated bactericidal effects against a range of pathogens, with Concentration Minimally Bactericidal (CMB) values ranging from 22.67 mg/mL (for organisms such as S. aureus and C. albicans) to 47.61 mg/mL (for E. coli). Among the extracts, the ethanolic variant displayed the most potent DPPH radical scavenging activity, with an IC50 value of 0.72 ± 0.03 mg/mL. In contrast, the methanolic extract was superior in ferric ion reduction, registering 46.23 ± 1.10 µgEAA/g. Interestingly, the water-ethanolic extract surpassed others in the ABTS reduction method with a score of 0.49 ± 0.11 mol ET/g and also showcased the highest albumin denaturation inhibition rate of 97.31 ± 0.35% at a concentration of 1000 µg/mL. In conclusion, the extracts of Jatropha multifida L. are enriched with bioactive compounds that exhibit significant biological activities, underscoring their therapeutic potential.
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Affiliation(s)
- Durand Dah-Nouvlessounon
- Laboratory of Biology and Molecular Typing in Microbiology, Department of Biochemistry and Cell Biology, Faculty of Sciences and Techniques, University of Abomey-Calavi, Cotonou 05BP1604, Benin; (D.D.-N.); (J.-B.H.); (M.N.); (H.S.)
| | - Michaelle Chokki
- Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 3-5 Calea Manastur Street, 400372 Cluj-Napoca, Romania;
- Laboratoire de Microbiologie et de Technologie Alimentaire, FAST, Université d’Abomey-Calavi, 01BP: 526 ISBA-Champ de Foire, Cotonou 01BP188, Benin;
| | - Essé A. Agossou
- Laboratory of Pharmacology and Improved Traditional Medicines, FAST, Department of Animal Physiology, University of Abomey-Calavi, Cotonou 01BP526, Benin;
| | - Jean-Baptiste Houédanou
- Laboratory of Biology and Molecular Typing in Microbiology, Department of Biochemistry and Cell Biology, Faculty of Sciences and Techniques, University of Abomey-Calavi, Cotonou 05BP1604, Benin; (D.D.-N.); (J.-B.H.); (M.N.); (H.S.)
| | - Martial Nounagnon
- Laboratory of Biology and Molecular Typing in Microbiology, Department of Biochemistry and Cell Biology, Faculty of Sciences and Techniques, University of Abomey-Calavi, Cotonou 05BP1604, Benin; (D.D.-N.); (J.-B.H.); (M.N.); (H.S.)
| | - Haziz Sina
- Laboratory of Biology and Molecular Typing in Microbiology, Department of Biochemistry and Cell Biology, Faculty of Sciences and Techniques, University of Abomey-Calavi, Cotonou 05BP1604, Benin; (D.D.-N.); (J.-B.H.); (M.N.); (H.S.)
| | - Romana Vulturar
- Department of Molecular Sciences, “luliu Hatieganu” University of Medicine and Pharmacy, 8 Victor Babes, 400012 Cluj-Napoca, Romania;
| | - Simona Codruta Heghes
- Department of Drug Analysis, “luliu Hatieganu” University of Medicine and Pharmacy, 6 Louis Pasteur Street, 400012 Cluj-Napoca, Romania;
| | - Angela Cozma
- Internal Medicine Department, 4th Medical Clinic “luliu Hatieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania;
| | - Jacques François Mavoungou
- Department of Microbiology, International University of Libreville, ESSASSA-Libreville Campus, Essassa BP 20411, Gabon;
| | - Adriana Fodor
- Clinical Center of Diabetes, Nutrition and Metabolic Diseases, “luliu Hatieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania;
| | - Farid Baba-Moussa
- Laboratoire de Microbiologie et de Technologie Alimentaire, FAST, Université d’Abomey-Calavi, 01BP: 526 ISBA-Champ de Foire, Cotonou 01BP188, Benin;
| | - Ramona Suharoschi
- Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 3-5 Calea Manastur Street, 400372 Cluj-Napoca, Romania;
| | - Lamine Baba-Moussa
- Laboratory of Biology and Molecular Typing in Microbiology, Department of Biochemistry and Cell Biology, Faculty of Sciences and Techniques, University of Abomey-Calavi, Cotonou 05BP1604, Benin; (D.D.-N.); (J.-B.H.); (M.N.); (H.S.)
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Bungau AF, Radu AF, Bungau SG, Vesa CM, Tit DM, Purza AL, Endres LM. Emerging Insights into the Applicability of Essential Oils in the Management of Acne Vulgaris. Molecules 2023; 28:6395. [PMID: 37687224 PMCID: PMC10489792 DOI: 10.3390/molecules28176395] [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: 07/31/2023] [Revised: 08/31/2023] [Accepted: 08/31/2023] [Indexed: 09/10/2023] Open
Abstract
The occurrence of pustules, comedones, nodules, and cysts defines acne vulgaris, a prevalent chronic inflammatory dermatological condition. In the past few decades, essential oils extracted from varied natural sources have acquired recognition due to their potential medicinal applications in acne therapy. However, there is not yet sufficient medical data to fully characterize this interaction. Multiple factors contribute to the development of acne vulgaris, including excessive sebaceous production, inflammatory processes, hyperkeratinization, and infection with Cutibacterium acnes. Essential oils, including oregano, lavender, lemon grass, myrtle, lemon, thyme, eucalyptus, rosemary, and tea tree, have been found to possess anti-inflammatory, antioxidant, and antimicrobial properties, which may target the multifactorial causes of acne. Analytical methods for determining antioxidant potential (i.e., total phenolic content, diphenyl-1-picrylhydrazyl free radical scavenging assay, reducing power assay, ferrous ion chelating activity, thiobarbituric acid reactive species assay, β-carotene bleaching assay, etc.) are essential for the evaluation of these essential oils, and their method optimization is crucial. Further studies could include the development of novel acne treatments incorporating essential oils and an assessment of their efficacy in large clinical trials. In addition, further research is necessary to ascertain the mechanisms of action of essential oils and their optimal doses and safety profiles for optimal implementation in the management of acne vulgaris.
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Affiliation(s)
- Alexa Florina Bungau
- Doctoral School of Biological and Biomedical Sciences, University of Oradea, 410087 Oradea, Romania; (A.F.B.); (C.M.V.); (D.M.T.)
- Department of Preclinical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania
| | - Andrei-Flavius Radu
- Doctoral School of Biological and Biomedical Sciences, University of Oradea, 410087 Oradea, Romania; (A.F.B.); (C.M.V.); (D.M.T.)
- Department of Preclinical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania
| | - Simona Gabriela Bungau
- Doctoral School of Biological and Biomedical Sciences, University of Oradea, 410087 Oradea, Romania; (A.F.B.); (C.M.V.); (D.M.T.)
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, 410028 Oradea, Romania;
| | - Cosmin Mihai Vesa
- Doctoral School of Biological and Biomedical Sciences, University of Oradea, 410087 Oradea, Romania; (A.F.B.); (C.M.V.); (D.M.T.)
- Department of Preclinical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania
| | - Delia Mirela Tit
- Doctoral School of Biological and Biomedical Sciences, University of Oradea, 410087 Oradea, Romania; (A.F.B.); (C.M.V.); (D.M.T.)
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, 410028 Oradea, Romania;
| | - Anamaria Lavinia Purza
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, 410028 Oradea, Romania;
| | - Laura Maria Endres
- Department of Psycho-Neurosciences and Recovery, Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania;
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Iacovelli F, Romeo A, Lattanzio P, Ammendola S, Battistoni A, La Frazia S, Vindigni G, Unida V, Biocca S, Gaziano R, Divizia M, Falconi M. Deciphering the Broad Antimicrobial Activity of Melaleuca alternifolia Tea Tree Oil by Combining Experimental and Computational Investigations. Int J Mol Sci 2023; 24:12432. [PMID: 37569803 PMCID: PMC10420022 DOI: 10.3390/ijms241512432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 08/01/2023] [Accepted: 08/03/2023] [Indexed: 08/13/2023] Open
Abstract
Tea Tree Oil (TTO) is an essential oil obtained from the distillation of Melaleuca alternifolia leaves and branches. Due to its beneficial properties, TTO is widely used as an active ingredient in antimicrobial preparations for topical use or in cosmetic products and contains about 100 different compounds, with terpinen-4-ol, γ-terpinene and 1,8-cineole (or eucalyptol) being the molecules most responsible for its biological activities. In this work, the antimicrobial activity of whole TTO and these three major components was evaluated in vitro against fungi, bacteria and viruses. Molecular dynamics simulations were carried out on a bacterial membrane model and a Coxsackievirus B4 viral capsid, to propose an atomistic explanation of their mechanism of action. The obtained results indicate that the strong antimicrobial activity of TTO is attributable to the induction of an altered membrane functionality, mediated by the incorporation of its components within the lipid bilayer, and to a possible ability of the compounds to bind and alter the structural properties of the viral capsid.
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Affiliation(s)
- Federico Iacovelli
- Department of Biology, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome, Italy; (F.I.); (A.R.); (P.L.); (S.A.); (A.B.); (S.L.F.)
| | - Alice Romeo
- Department of Biology, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome, Italy; (F.I.); (A.R.); (P.L.); (S.A.); (A.B.); (S.L.F.)
| | - Patrizio Lattanzio
- Department of Biology, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome, Italy; (F.I.); (A.R.); (P.L.); (S.A.); (A.B.); (S.L.F.)
| | - Serena Ammendola
- Department of Biology, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome, Italy; (F.I.); (A.R.); (P.L.); (S.A.); (A.B.); (S.L.F.)
| | - Andrea Battistoni
- Department of Biology, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome, Italy; (F.I.); (A.R.); (P.L.); (S.A.); (A.B.); (S.L.F.)
| | - Simone La Frazia
- Department of Biology, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome, Italy; (F.I.); (A.R.); (P.L.); (S.A.); (A.B.); (S.L.F.)
| | - Giulia Vindigni
- Department of Systems Medicine, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, Italy; (G.V.); (V.U.); (S.B.)
| | - Valeria Unida
- Department of Systems Medicine, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, Italy; (G.V.); (V.U.); (S.B.)
| | - Silvia Biocca
- Department of Systems Medicine, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, Italy; (G.V.); (V.U.); (S.B.)
| | - Roberta Gaziano
- Microbiology Section, Department of Experimental Medicine, University of Rome Tor Vergata, Via Montpellier, 1–00133 Rome, Italy;
| | - Maurizio Divizia
- Department of Biomedicine and Prevention, University of Tor Vergata, 00133 Rome, Italy;
| | - Mattia Falconi
- Department of Biology, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome, Italy; (F.I.); (A.R.); (P.L.); (S.A.); (A.B.); (S.L.F.)
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Yousef MM, Zohri ANA, Darwish AMG, Shamseldin A, Kabeil SA, Abdelkhalek A, Binsuwaidan R, Jaremko M, Alshwyeh HA, Hafez EE, Saied EM. Exploring the antibacterial potential of plant extracts and essential oils against Bacillus thermophilus in beet sugar for enhanced sucrose retention: a comparative assessment and implications. Front Microbiol 2023; 14:1219823. [PMID: 37547698 PMCID: PMC10400092 DOI: 10.3389/fmicb.2023.1219823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 06/23/2023] [Indexed: 08/08/2023] Open
Abstract
Sugar beet is one of the greatest sources for producing sugar worldwide. However, a group of bacteria grows on beets during the storage process, leading to a reduction in sucrose yield. Our study focused on identifying common bacterial species that grow on beets during manufacturing and contribute to sucrose loss. The ultimate goal was to find a potential antibacterial agent from various plant extracts and oils to inhibit the growth of these harmful bacteria and reduce sucrose losses. The screening of bacterial species that grow on beet revealed that a large group of mesophilic bacteria, such as Bacillus subtilis, Leuconostoc mesenteroides, Pseudomonas fluorescens, Escherichia coli, Acinetobacter baumannii, Staphylococcus xylosus, Enterobacter amnigenus, and Aeromonas species, in addition to a dominant thermophilic species called Bacillus thermophilus, were found to be present during the manufacturing of beets. The application of 20 plant extracts and 13 different oils indicated that the extracts of Geranium gruinum, Datura stramonium, and Mentha spicata were the best antibacterials to reduce the growth of B. thermophilus with inhibition zones equal to 40, 39, and 35 mm, respectively. In contrast, the best active oils for inhibiting the growth of B. thermophilus were Mentha spicata and Ocimum bacilicum, with an inhibitory effect of 50 and 45 mm, respectively. RAPD-PCR with different primers indicated that treating sugar juice with the most effective oils against bacteria resulted in new recombinant microorganisms, confirming their roles as strong antibacterial products. The characterization of Mentha spicata and Ocimum bacilicum oils using GC/MS analysis identified cis-iso pulegone and hexadecanoic acid as the two main bioactive compounds with potential antibacterial activity. An analysis of five genes using DD-PCR that have been affected due to antibacterial activity from the highly effective oil from Mentha spicata concluded that all belonged to the family of protein defense. Our findings indicate that the application of these pure antibacterial plant extracts and oils would minimize the reduction of sucrose during sugar production.
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Affiliation(s)
- Mohamed M. Yousef
- Faculty of Sugar Industry Technology and Integrated Industries, Assiut University, Assiut, Egypt
| | - Abdel-Naser A. Zohri
- Department of Botany and Microbiology, Faculty of Science, Assuit University, Assiut, Egypt
| | - Amira M. G. Darwish
- Food Industry Technology Program, Faculty of Industrial and Energy Technology, Borg Al Arab Technological University, Alexandria, Egypt
- Food Technology Department, Arid Lands Cultivation Research Institute, City of Scientific Research and Technological Applications (SRTA-City), Alexandria, Egypt
| | - Abdelaal Shamseldin
- Department of Environmental Biotechnology, GEBRI Institute at the City of Scientific Research and Technology Applications, New Borg El-Arab, Alexandria, Egypt
| | - Sanaa A. Kabeil
- Department of Protein Research, GEBRI Institute at the City of Scientific Research and Technology Applications, Alexandria, Egypt
| | - Ahmed Abdelkhalek
- Plant Protection and Biomolecular Diagnosis Department, Arid Lands Cultivation Research Institute, City of Scientific Research and Technological Applications, New Borg El-Arab, Alexandria, Egypt
| | - Reem Binsuwaidan
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Mariusz Jaremko
- Division of Biological and Environmental Sciences and Engineering, Smart-Health Initiative and Red Sea Research Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Hussah Abdullah Alshwyeh
- Department of Biology, College of Science, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
- Basic and Applied Scientific Research Center, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Elsayed E. Hafez
- Plant Protection and Biomolecular Diagnosis Department, Arid Lands Cultivation Research Institute, City of Scientific Research and Technological Applications, New Borg El-Arab, Alexandria, Egypt
| | - Essa M. Saied
- Chemistry Department, Faculty of Science, Suez Canal University, Ismailia, Egypt
- Institute for Chemistry, Humboldt Universität zu Berlin, Berlin, Germany
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He S, Wen H, Yao N, Wang L, Huang J, Li Z. A Sustained-Release Nanosystem with MRSA Biofilm-Dispersing and -Eradicating Abilities Accelerates Diabetic Ulcer Healing. Int J Nanomedicine 2023; 18:3951-3972. [PMID: 37489140 PMCID: PMC10363391 DOI: 10.2147/ijn.s410996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 07/10/2023] [Indexed: 07/26/2023] Open
Abstract
Introduction Drug-resistant bacterial infections and biofilm formation play important roles in the pathogenesis of diabetic refractory wounds. Tea tree oil (TTO) exhibits antimicrobial, antimycotic, and antiviral activities, especially against common clinically resistant strains, such as methicillin-resistant Staphylococcus aureus (MRSA), making it a potential natural antimicrobial for the treatment of acute and chronic wounds. However, TTO is insoluble in water, volatile, light-sensitive, and cytotoxic. While previous macroscopic studies have focused on sterilization with TTO, none have sought to alter its structure or combine it with other materials to achieve sustained release. Methods Electrospun TTO nanoliposomes (TTO-NLs), arranged linearly via high-pressure homogenization, could stabilize the structure and performance of TTO to achieve slow drug release. Herein, we established a composite nano-sustained release system, TTO-NL/polyvinyl alcohol/chitosan (TTO-NL@PCS), using high-voltage electrospinning. Results Compared with the control, TTO-NL@PCS exhibits higher concentrations of the active TTO drug components, terpinen-4-ol and 1,8-cineole. Owing to its increased stability and slow release, early exposure to TTO-NL@PCS increases the abundance of reactive oxygen species in vitro, ultimately causing the biofilm to disperse and completely killing MRSA without inducing cytotoxic effects to the host. Moreover, in BKS-Leprem2Cd479/Gpt mice with a whole-layer skin infection, untargeted metabolomics analysis of wound exudates reveals upregulated PGF2α/FP receptor signaling and interleukin (IL)-1β and IL-6 expression following application of the composite system. The composite also ameliorates the chemotaxis disorder in early treatment and attenuates the wound inflammatory response during the repair stage of diabetic inflammatory wounds, and upregulates VEGF expression in the wound bed. Conclusion TTO-NL@PCS demonstrates the remarkable potential for accelerating diabetic and MRSA-infected wound healing.
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Affiliation(s)
- Shan He
- Department of Burns, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People’s Republic of China
| | - Huangding Wen
- Department of Burns, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People’s Republic of China
| | - Nannan Yao
- Department of Neurology, Cangzhou Central Hospital, Cangzhou, 061000, People’s Republic of China
| | - Lu Wang
- Department of Neurology, Hebei General Hospital, Shijiazhuang, 050000, People’s Republic of China
| | - Junqun Huang
- Department of Anaesthesia, The Seventh Affiliated Hospital, Southern Medical University, Foshan, 528000, People’s Republic of China
| | - Zhiqing Li
- Department of Burns, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People’s Republic of China
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Wei S, Tian Q, Husien HM, Tao Y, Liu X, Liu M, Bo R, Li J. The synergy of tea tree oil nano-emulsion and antibiotics against multidrug-resistant bacteria. J Appl Microbiol 2023; 134:lxad131. [PMID: 37401131 DOI: 10.1093/jambio/lxad131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 06/16/2023] [Accepted: 06/30/2023] [Indexed: 07/05/2023]
Abstract
AIMS We determined the synergistic effects of tea tree essential oil nano-emulsion (nanoTTO) and antibiotics against multidrug-resistant (MDR) bacteria in vitro and in vivo. Then, the underlying mechanism of action of nanoTTO was investigated. METHODS AND RESULTS Minimum inhibitory concentrations and fractional inhibitory concentration index (FICI) were determined. The transepithelial electrical resistance (TEER) and the expression of tight junction (TJ) protein of IPEC-J2 cells were measured to determine the in vitro efficacy of nanoTTO in combination with antibiotics. A mouse intestinal infection model evaluated the in vivo synergistic efficacy. Proteome, adhesion assays, quantitative real-time PCR, and scanning electron microscopy were used to explore the underlying mechanisms. Results showed that nanoTTO was synergistic (FICI ≤ 0.5) or partial synergistic (0.5 < FICI < 1) with antibiotics against MDR Gram-positive and Gram-negative bacteria strains. Moreover, combinations increased the TEER values and the TJ protein expression of IPEC-J2 cells infected with MDR Escherichia coli. The in vivo study showed that the combination of nanoTTO and amoxicillin improved the relative weight gain and maintained the structural integrity of intestinal barriers. Proteome showed that type 1 fimbriae d-mannose specific adhesin of E. coli was downregulated by nanoTTO. Then, nanoTTO reduced bacterial adhesion and invasion and inhibited the mRNA expression of fimC, fimG, and fliC, and disrupted bacterial membranes.
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Affiliation(s)
- SiMin Wei
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, PR China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, PR China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu, PR China
| | - QiMing Tian
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, PR China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, PR China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu, PR China
| | - Hosameldeen Mohamed Husien
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, PR China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, PR China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu, PR China
- College of Veterinary Medicine, Albutana University, Rufaa 22217, Al Jazirah, Sudan
| | - Ya Tao
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, PR China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, PR China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu, PR China
| | - XiaoPan Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, PR China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, PR China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu, PR China
| | - MingJiang Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, PR China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, PR China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu, PR China
| | - RuoNan Bo
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, PR China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, PR China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu, PR China
| | - JinGui Li
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, PR China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, PR China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu, PR China
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Kumar P, Mathew S, Gamage R, Bodkin F, Doyle K, Rossetti I, Wagnon I, Zhou X, Raju R, Gyengesi E, Münch G. From the Bush to the Brain: Preclinical Stages of Ethnobotanical Anti-Inflammatory and Neuroprotective Drug Discovery-An Australian Example. Int J Mol Sci 2023; 24:11086. [PMID: 37446262 DOI: 10.3390/ijms241311086] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/29/2023] [Accepted: 07/01/2023] [Indexed: 07/15/2023] Open
Abstract
The Australian rainforest is a rich source of medicinal plants that have evolved in the face of dramatic environmental challenges over a million years due to its prolonged geographical isolation from other continents. The rainforest consists of an inherent richness of plant secondary metabolites that are the most intense in the rainforest. The search for more potent and more bioavailable compounds from other plant sources is ongoing, and our short review will outline the pathways from the discovery of bioactive plants to the structural identification of active compounds, testing for potency, and then neuroprotection in a triculture system, and finally, the validation in an appropriate neuro-inflammatory mouse model, using some examples from our current research. We will focus on neuroinflammation as a potential treatment target for neurodegenerative diseases including multiple sclerosis (MS), Parkinson's (PD), and Alzheimer's disease (AD) for these plant-derived, anti-inflammatory molecules and highlight cytokine suppressive anti-inflammatory drugs (CSAIDs) as a better alternative to conventional nonsteroidal anti-inflammatory drugs (NSAIDs) to treat neuroinflammatory disorders.
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Affiliation(s)
- Payaal Kumar
- Pharmacology Unit, School of Medicine, Western Sydney University, Campbelltown, NSW 2560, Australia
| | - Shintu Mathew
- Pharmacology Unit, School of Medicine, Western Sydney University, Campbelltown, NSW 2560, Australia
| | - Rashmi Gamage
- Pharmacology Unit, School of Medicine, Western Sydney University, Campbelltown, NSW 2560, Australia
| | - Frances Bodkin
- Pharmacology Unit, School of Medicine, Western Sydney University, Campbelltown, NSW 2560, Australia
| | - Kerrie Doyle
- Indigenous Health Unit, School of Medicine, Western Sydney University, Campbelltown, NSW 2560, Australia
| | - Ilaria Rossetti
- Pharmacology Unit, School of Medicine, Western Sydney University, Campbelltown, NSW 2560, Australia
| | - Ingrid Wagnon
- Pharmacology Unit, School of Medicine, Western Sydney University, Campbelltown, NSW 2560, Australia
| | - Xian Zhou
- NICM Health Research Institute, Western Sydney University, Westmead, NSW 2145, Australia
| | - Ritesh Raju
- Pharmacology Unit, School of Medicine, Western Sydney University, Campbelltown, NSW 2560, Australia
| | - Erika Gyengesi
- Pharmacology Unit, School of Medicine, Western Sydney University, Campbelltown, NSW 2560, Australia
| | - Gerald Münch
- Pharmacology Unit, School of Medicine, Western Sydney University, Campbelltown, NSW 2560, Australia
- NICM Health Research Institute, Western Sydney University, Westmead, NSW 2145, Australia
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Gomes JAP, Azar DT, Baudouin C, Bitton E, Chen W, Hafezi F, Hamrah P, Hogg RE, Horwath-Winter J, Kontadakis GA, Mehta JS, Messmer EM, Perez VL, Zadok D, Willcox MDP. TFOS Lifestyle: Impact of elective medications and procedures on the ocular surface. Ocul Surf 2023; 29:331-385. [PMID: 37087043 DOI: 10.1016/j.jtos.2023.04.011] [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: 04/07/2023] [Accepted: 04/10/2023] [Indexed: 04/24/2023]
Abstract
The word "elective" refers to medications and procedures undertaken by choice or with a lower grade of prioritization. Patients usually use elective medications or undergo elective procedures to treat pathologic conditions or for cosmetic enhancement, impacting their lifestyle positively and, thus, improving their quality of life. However, those interventions can affect the homeostasis of the tear film and ocular surface. Consequently, they generate signs and symptoms that could impair the patient's quality of life. This report describes the impact of elective topical and systemic medications and procedures on the ocular surface and the underlying mechanisms. Moreover, elective procedures performed for ocular diseases, cosmetic enhancement, and non-ophthalmic interventions, such as radiotherapy and bariatric surgery, are discussed. The report also evaluates significant anatomical and biological consequences of non-urgent interventions to the ocular surface, such as neuropathic and neurotrophic keratopathies. Besides that, it provides an overview of the prophylaxis and management of pathological conditions resulting from the studied interventions and suggests areas for future research. The report also contains a systematic review investigating the quality of life among people who have undergone small incision lenticule extraction (SMILE). Overall, SMILE refractive surgery seems to cause more vision disturbances than LASIK in the first month post-surgery, but less dry eye symptoms in long-term follow up.
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Affiliation(s)
- José Alvaro P Gomes
- Dept. of Ophthalmology and Visual Sciences, Federal University of Sao Paulo/Paulista School of Medicine (UNIFESP/EPM), Sao Paulo, SP, Brazil.
| | - Dimitri T Azar
- University of Illinois College of Medicine, Chicago, IL, USA
| | - Christophe Baudouin
- Quinze-Vingts National Eye Hospital & Vision Institute, IHU FOReSIGHT, Paris, France
| | - Etty Bitton
- Ecole d'optométrie, Université de Montréal, Montréal, Canada
| | - Wei Chen
- Eye Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | | | - Pedram Hamrah
- Department of Ophthalmology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA, USA
| | - Ruth E Hogg
- Centre for Public Health, School of Medicine, Dentistry and Biomedical Sciences, Belfast, UK
| | | | | | | | | | - Victor L Perez
- Foster Center for Ocular Immunology, Duke University Eye Center, Durham, NC, USA
| | - David Zadok
- Shaare Zedek Medical Center, Affiliated to the Hebrew University, School of Medicine, Jerusalem, Israel
| | - Mark D P Willcox
- School of Optometry and Vision Science, University of New South Wales, Sydney, Australia
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Nascimento T, Gomes D, Simões R, da Graça Miguel M. Tea Tree Oil: Properties and the Therapeutic Approach to Acne-A Review. Antioxidants (Basel) 2023; 12:1264. [PMID: 37371994 DOI: 10.3390/antiox12061264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 06/05/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
Acne vulgaris is an inflammatory dermatological pathology that affects mostly young people. However, it can also appear in adulthood, mainly in women. It has a high psychosocial impact, not only at the time of active lesions but also due to the consequences of lesions such as scarring and hyperpigmentation. Several factors are involved in the physiopathology of acne and the constant search for active ingredients is a reality, namely phytotherapeutic ingredients. Tea tree oil is an essential oil extracted from Melaleuca alternifolia (Maiden & Betch) Cheel with known antibacterial, anti-inflammatory, and antioxidant properties, making it a candidate for the treatment of acne. This review aims to describe the various properties of tea tree oil that make it a possible ingredient to use in the treatment of acne and to present several human studies that have evaluated the efficacy and safety of using tea tree oil in the treatment of acne. It can be concluded that tea tree oil has good antibacterial, anti-inflammatory, and antioxidant properties that result in a decrease in the number of inflammatory lesions, mainly papules, and pustules. However, given the diversity of study designs, it is not possible to draw concrete conclusions on the efficacy and safety of this oil in the treatment of acne.
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Affiliation(s)
- Tânia Nascimento
- Escola Superior de Saúde, Universidade do Algarve (ESSUAlg), Campus de Gambelas, Edifício 2, 8005-139 Faro, Portugal
- Algarve Biomedical Center Research Institute (ABC-RI), Universidade do Algarve, Campus de Gambelas, Edifício 2, 8005-139 Faro, Portugal
| | - Diana Gomes
- Faculdade de Ciências e Tecnologia, Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal
| | - Ricardo Simões
- Faculdade de Ciências e Tecnologia, Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal
| | - Maria da Graça Miguel
- Faculdade de Ciências e Tecnologia, Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal
- Mediterranean Institute for Agriculture, Environment and Development, Mediterranean Institute for Agriculture, Environment and Development, Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal
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Paramalingam P, Baharum NA, Abdullah JO, Hong JK, Saidi NB. Antifungal Potential of Melaleuca alternifolia against Fungal Pathogen Fusarium oxysporum f. sp. cubense Tropical Race 4. Molecules 2023; 28:molecules28114456. [PMID: 37298932 DOI: 10.3390/molecules28114456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/21/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023] Open
Abstract
Fusarium wilt of bananas caused by Fusarium oxysporum f. sp. cubense Tropical Race 4 (Foc TR4) poses the most serious threat to banana production globally. The disease has been managed using chemical fungicides, yet the control levels are still unsatisfactory. This study investigated the antifungal activities of tea tree (Melaleuca alternifolia) essential oil (TTO) and hydrosol (TTH) against Foc TR4 and their bioactive components. The potential of TTO and TTH in inhibiting the growth of Foc TR4 was evaluated in vitro using agar well diffusion and spore germination assays. Compared to the chemical fungicide, TTO effectively suppressed the mycelial growth of Foc TR4 at 69%. Both the minimum inhibitory concentration (MIC) and minimum fungicidal concentration (MFC) of TTO and TTH were established at 0.2 µg/µL and 50% v/v, respectively, suggesting the fungicidal nature of the plant extracts. The disease control efficacies were also demonstrated by a (p ≤ 0.05) delayed Fusarium wilt symptom development in the susceptible banana plants with reduced LSI dan RDI scores from 70% to around 20-30%. A GC/MS analysis of TTO identified terpinen-4-ol, eucalyptol, and α-terpineol as the major components. In contrast, an LC/MS analysis of TTH identified different compounds, including dihydro-jasmonic acid and methyl ester. Our findings indicate the potential of tea tree extracts as natural alternatives to chemical fungicides to control Foc TR4.
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Affiliation(s)
- Pavitra Paramalingam
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Nadiya Akmal Baharum
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Janna Ong Abdullah
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Jeum Kyu Hong
- Division of Horticultural Science, Gyeongsang National University, 33 Dongjin-ro, Jinju 52725, Republic of Korea
- Agri-Food Bio Convergence Institute, Gyeongsang National University, 33 Dongjin-ro, Jinju 52725, Republic of Korea
| | - Noor Baity Saidi
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
- Laboratory of Sustainable Agronomy and Crop Protection, Institute of Plantation Studies, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
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Fernández-Engroba J, Ferragut-Alegre Á, Oliva-Albaladejo G, de la Paz MF. In vitro evaluation of multiple antibacterial agents for the treatment of chronic staphylococcal anterior blepharitis. ARCHIVOS DE LA SOCIEDAD ESPANOLA DE OFTALMOLOGIA 2023:S2173-5794(23)00077-4. [PMID: 37209719 DOI: 10.1016/j.oftale.2023.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 04/09/2023] [Indexed: 05/22/2023]
Abstract
OBJECTIVE To evaluate the bactericidal efficacy of several compounds used in the treatment of chronic staphylococcal anterior blepharitis through an in vitro study. MATERIALS AND METHODS Standard commercial strains of Staphylococcus aureus (SAu) (ATCC 25923 Culti-Loops) and coagulase-negative Staphylococcus (CoNS) (ATCC 12228 Culti-Loops) were cultured. Susceptibility tests were performed to vancomycin 30 μg, netilmicin 30 μg, hypochlorous acid (HOCl) 0.01% (Ocudox™, Brill®), Melaleuca alternifolia leaf oil (MeAl) (Navyblef® Daily Care, NOVAX ®) and 1% chlorhexidine digluconate (DGCH) (Cristalmina™, Salvat®) using the agar disk diffusion method (Rosco Neo-Sensitabs®). After 24 hours, the induced halos were measured with automatic calipers. The results were analyzed using the EUCAST- and CLSI potency Neo-Sensitabs® guidelines. RESULTS Vancomycin induced a halo of 22.37 mm and 21.81 mm in SAu and CoNS, respectively. Netilmicin produced halos of 24.45 mm in SAu and 32.49 mm in CoNS. MeAl induced halos of 12.65 mm in SAu and 15.83 mm in CoNS. A 12.11 mm halo was found in SAu and an 18.38 mm halo in CoNS using HOCl. DGCH produced halos of 26.55 mm and 23.12 mm in SAu and CoNS, respectively. CONCLUSION Netilmicin and vancomycin demonstrated antibiotic activity against both pathogens, so they can be alternative rescue therapies to treat chronic staphylococcal blepharitis. DGCH has efficacy against both comparable to antibiotics, while HOCl and MeAl show less efficacy.
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Affiliation(s)
- J Fernández-Engroba
- Centro de Oftalmología Barraquer, Barcelona, Spain; Institut Universitari Barraquer, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Á Ferragut-Alegre
- Centro de Oftalmología Barraquer, Barcelona, Spain; Institut Universitari Barraquer, Universitat Autònoma de Barcelona, Barcelona, Spain.
| | - G Oliva-Albaladejo
- Centro de Oftalmología Barraquer, Barcelona, Spain; Institut Universitari Barraquer, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - M F de la Paz
- Centro de Oftalmología Barraquer, Barcelona, Spain; Institut Universitari Barraquer, Universitat Autònoma de Barcelona, Barcelona, Spain
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Budala DG, Martu MA, Maftei GA, Diaconu-Popa DA, Danila V, Luchian I. The Role of Natural Compounds in Optimizing Contemporary Dental Treatment-Current Status and Future Trends. J Funct Biomater 2023; 14:jfb14050273. [PMID: 37233383 DOI: 10.3390/jfb14050273] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 04/28/2023] [Accepted: 05/12/2023] [Indexed: 05/27/2023] Open
Abstract
For a long period of time, natural remedies were the only ailment available for a multitude of diseases, and they have proven effective even after the emergence of modern medicine. Due to their extremely high prevalence, oral and dental disorders and anomalies are recognized as major public health concerns. Herbal medicine is the practice of using plants with therapeutic characteristics for the purpose of disease prevention and treatment. Herbal agents have made a significant entry into oral care products in recent years, complementing traditional treatment procedures due to their intriguing physicochemical and therapeutic properties. There has been a resurgence of interest in natural products because of recent updates, technological advancements, and unmet expectations from current strategies. Approximately eighty percent of the world's population uses natural remedies, especially in poorer nations. When conventional treatments have failed, it may make sense to use natural drugs for the treatment of pathologic oral dental disorders, as they are readily available, inexpensive, and have few negative effects. The purpose of this article is to provide a comprehensive analysis of the benefits and applications of natural biomaterials in dentistry, to gather relevant information from the medical literature with an eye toward its practical applicability, and make suggestions for the directions for future study.
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Affiliation(s)
- Dana Gabriela Budala
- Department of Implantology, Removable Prostheses, Dental Prostheses Technology, Faculty of Dental Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, 700115 Iași, Romania
| | - Maria-Alexandra Martu
- Department of Periodontology, Faculty of Dental Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, 16 Universității Street, 700115 Iași, Romania
| | - George-Alexandru Maftei
- Department of Dento-Alveolar Surgery and Oral Pathology, "Grigore T. Popa" University of Medicine and Pharmacy Iași, Universitatii Street 16, 700115 Iași, Romania
| | - Diana Antonela Diaconu-Popa
- Department of Implantology, Removable Prostheses, Dental Prostheses Technology, Faculty of Dental Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, 700115 Iași, Romania
| | - Vlad Danila
- Department of Dento-Alveolar Surgery and Oral Pathology, "Grigore T. Popa" University of Medicine and Pharmacy Iași, Universitatii Street 16, 700115 Iași, Romania
| | - Ionut Luchian
- Department of Periodontology, Faculty of Dental Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, 16 Universității Street, 700115 Iași, Romania
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Vázquez A, Tabanca N, Kendra PE. HPTLC Analysis and Chemical Composition of Selected Melaleuca Essential Oils. Molecules 2023; 28:molecules28093925. [PMID: 37175338 PMCID: PMC10180325 DOI: 10.3390/molecules28093925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 04/28/2023] [Accepted: 05/05/2023] [Indexed: 05/15/2023] Open
Abstract
Tea tree oil (TTO) is a volatile essential oil obtained by distillation, mainly from the Australian native plant Melaleuca alternifolia (Maiden & Betche) Cheel (Myrtaceae). In this study, a comparative analysis of the chemical constituents of seven tea tree oils (M. alternifolia) and four other Melaleuca spp. oils (M. cajuputi, (MCa), two chemotypes of M. quinquenervia, (MNe and MNi), and M. ericifolia (MRo)) was carried out using gas chromatography-mass spectrometry (GC-MS) and high-performance thin-layer chromatography (HPTLC). Among the seven TTOs, terpinen-4-ol (37.66-44.28%), γ-terpinene (16.42-20.75%), α-terpinene (3.47-12.62%), α-terpineol (3.11-4.66%), and terpinolene (2.75-4.19%) were the most abundant compounds. On the other hand, the most abundant compounds of the other Melaleuca oils varied, such as 1,8-cineole (64.63%) in MCa oil, (E)-nerolidol (48.40%) and linalool (33.30%) in MNe oil, 1,8-cineole (52.20%) in MNi oil, and linalool (38.19%) and 1,8-cineole (27.57%) in MRo oil. HPTLC fingerprinting of Melaleuca oils enabled the discrimination of TTO oils from other Melaleuca spp. oils. Variation was observed in the profile of the Rf values among EOs. The present study shows that HPTLC is one of the best ways to identify and evaluate the quality control in authenticating TTOs, other Melaleuca EOs, or EOs from other species within the Myrtaceae.
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Affiliation(s)
- Aimé Vázquez
- United States Department of Agriculture-Agricultural Research Service (USDA-ARS), Subtropical Horticulture Research Station (SHRS), Miami, FL 33158, USA
| | - Nurhayat Tabanca
- United States Department of Agriculture-Agricultural Research Service (USDA-ARS), Subtropical Horticulture Research Station (SHRS), Miami, FL 33158, USA
| | - Paul E Kendra
- United States Department of Agriculture-Agricultural Research Service (USDA-ARS), Subtropical Horticulture Research Station (SHRS), Miami, FL 33158, USA
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41
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Iseppi R, Condò C, Messi P. Synergistic Inhibition of Methicillin-Resistant Staphylococcus aureus (MRSA) by Melaleuca alternifolia Chell (Tea Tree) and Eucalyptus globulus Labill. Essential Oils in Association with Oxacillin. Antibiotics (Basel) 2023; 12:antibiotics12050846. [PMID: 37237749 DOI: 10.3390/antibiotics12050846] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 04/27/2023] [Accepted: 04/28/2023] [Indexed: 05/28/2023] Open
Abstract
The presence of antibiotic-resistant bacteria has become a major therapeutic priority. This trend indicates the need for alternative agents to antibiotics, such as natural compounds of plant origin. By assessing membrane permeability, we investigated the antimicrobial activity of Melaleuca alternifolia and Eucalyptus globulus essential oils (EOs) against three strains of methicillin-resistant Staphylococcus aureus (MRSA). Using the checkerboard method, the efficacy of single EOs, in association with each other or in combination with oxacillin, was quantified by calculating the fractional inhibitory concentrations (FIC Index). All EOs showed a reduction in bacterial load, an alteration of membrane permeability which leads to an increase in its function, resulting in the release of nucleic acids and proteins. The treatment with EO-oxacillin combinations and associated EO-EO resulted in a synergistic effect in most of the tests performed. EO-EO association showed a high activity in the alteration of the membrane, increasing the permeability to about 80% in all the MRSA strains treated. In conclusion, the combination of EOs and antibiotics represents a valid therapeutic support against MRSA bacteria, allowing for a decrease in the antibiotic concentration needed for therapeutic use.
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Affiliation(s)
- Ramona Iseppi
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Giuseppe Campi 287, 41125 Modena, Italy
| | - Carla Condò
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Giuseppe Campi 287, 41125 Modena, Italy
| | - Patrizia Messi
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Giuseppe Campi 287, 41125 Modena, Italy
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Aghaei H, Torabi B, Abdolalizadeh P, Vaghfipanah H. Comparison of the effect of tea tree oil eye gel with standard treatment in patients with anterior blepharitis: An open-label clinical trial. Indian J Ophthalmol 2023; 71:2188-2192. [PMID: 37202946 PMCID: PMC10391484 DOI: 10.4103/ijo.ijo_2546_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/20/2023] Open
Abstract
Purpose Daily cleansing of eyelids is very important to carry out a successful blepharitis treatment. However, there are no therapeutic guidelines for blepharitis. The aim was to compare the symptomatic relief of anterior blepharitis using Blephamed eye gel, a cosmetic product, versus standard treatment. Methods The study was a prospective, interventional open label clinical trial at a university-based hospital. The test population was subjects aged 18-65 years who presented with mild to moderate anterior blepharitis. Eyelid hygiene was applied twice a day. At each visit, a detailed assessment of symptomatology was carried out. A two-way repeated measure mixed model ANOVA was used to compare two groups by time. Results In total, 61 patients with mean age of 60.08 ± 16.69 years were enrolled in the study including 30 patients in standard group and 31 patients in Blephamed group. Two groups did not differ in terms of age (P = 0.31) and eye laterality (P = 0.50). The baseline scores of erythema, edema, debris, and symptoms as well as total score were similar between two groups (all P values >0.50). Two groups became different for all these parameters at day 45 (all P values <0.001). Significant interaction was detected between time and intervention groups for all severity parameters of blepharitis as well as total score (all P values <0.001). Conclusion Eyelid hygiene with Blephamed more significantly decreased symptoms of anterior blepharitis compared to standard treatment.
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Affiliation(s)
- Hossein Aghaei
- Eye Research Center, The Five Senses Institute, Rassoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Behrouz Torabi
- Eye Research Center, The Five Senses Institute, Rassoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Parya Abdolalizadeh
- Eye Research Center, The Five Senses Institute, Rassoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Homa Vaghfipanah
- Eye Research Center, The Five Senses Institute, Rassoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
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43
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Rapper SLD, Viljoen A, van Vuuren S. Optimizing the Antimicrobial Synergism of Melaleuca alternifolia (Tea Tree) Essential Oil Combinations for Application against Respiratory Related Pathogens. PLANTA MEDICA 2023; 89:454-463. [PMID: 36626923 DOI: 10.1055/a-1947-5680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Antimicrobial research into the use of Melaleuca alternifolia essential oil has demonstrated broad-spectrum activity; however, much of the research published focuses on identifying the potential of this essential oil individually, rather than in combination for an enhanced antimicrobial effect. This study aimed to determine the antimicrobial activity of four essential oil combinations, all inclusive of M. alternifolia, against nine pathogens associated with the respiratory tract. The minimum inhibitory concentration assay was used to determine the antimicrobial activity of four essential oil combinations, M. alternifolia in combination with Cupressus sempervirens, Origanum majorana, Myrtus communis, and Origanum vulgare essential oils. The interactions between essential oil combinations were analyzed using isobolograms and SynergyFinder 2.0 software to visualize the synergistic potential at varied ratios. The antimicrobial activity of the different combinations of essential oils all demonstrated the ability to produce an enhanced antimicrobial effect compared to the essential oils when investigated independently. The findings of this study determined that isobolograms provide a more in-depth analysis of an essential oil combination interaction; however, the value of that interaction should be further quantified using computational modelling such as SynergyFinder. This study further supports the need for more studies where varied ratios of essential oils are investigated for antimicrobial potential.
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Affiliation(s)
- Stephanie Leigh-de Rapper
- Department of Pharmacy and Pharmacology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Alvaro Viljoen
- Department of Pharmaceutical Sciences, Faculty of Sciences, Tshwane University of Technology, Pretoria, South Africa
- SAMRC Herbal Drugs Research Unit, Department of Pharmaceutical Sciences, Tshwane University of Technology, Pretoria, South Africa
| | - Sandy van Vuuren
- Department of Pharmacy and Pharmacology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
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Li J, Chen W, Liu H, Liu H, Xiang S, You F, Jiang Y, Lin J, Zhang D, Zheng C. Pharmacologic effects approach of essential oils and their components on respiratory diseases. JOURNAL OF ETHNOPHARMACOLOGY 2023; 304:115962. [PMID: 36529244 DOI: 10.1016/j.jep.2022.115962] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 11/12/2022] [Accepted: 11/20/2022] [Indexed: 06/17/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Essential oils (EOs) are concentrated hydrophobic liquids with volatility and a unique aroma. Formed by aromatic plants as secondary metabolites, EOs have been used as traditional medicines to treat various health problems worldwide. Historical records show that herbs rich in EOs have been widely used to treat respiratory diseases in China, Europe, and many other regions. AIM OF THE REVIEW This review summarizes the traditional applications and modern pharmacological mechanisms of EOs derived from aromatic herbs and their active ingredients in respiratory diseases in preclinical and clinical trials through multitarget synergy. MATERIALS AND METHODS Information about EOs and respiratory diseases was collected from electronic databases, such as ScienceDirect, Web of Science, PubMed, Google Scholar, Baidu Scholar, and the China National Knowledge Infrastructure (CNKI). RESULTS This review presents the preventive and therapeutic effects of EOs on respiratory diseases, including chronic obstructive pulmonary disease, bronchial asthma, acute lung injury, pulmonary infection, and pulmonary fibrosis. The molecular mechanisms of EOs in treating different lung diseases are summarized, including anti-inflammation, anti-oxidation, mucolytic, and immune regulatory mechanisms. CONCLUSIONS EOs show potential as supplements or substitutes for treating lung diseases.
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Affiliation(s)
- Jia Li
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, Sichuan Province, China.
| | - Wu Chen
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, Sichuan Province, China.
| | - Huimin Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, No. 1066 Avenue Liutai, Chengdu, 611137, China.
| | - Hong Liu
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, Sichuan Province, China.
| | - Sirui Xiang
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, Sichuan Province, China.
| | - Fengming You
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, Sichuan Province, China.
| | - Yifang Jiang
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, Sichuan Province, China.
| | - Junzhi Lin
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, Sichuan Province, China.
| | - Dingkun Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, No. 1066 Avenue Liutai, Chengdu, 611137, China.
| | - Chuan Zheng
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, Sichuan Province, China.
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Oran NT, Alan N, Akokay P, Büyükçoban S, Uğur Ergür B. The healing effect of topical tea tree oil on pressure ulcers in a rat model. J Wound Care 2023; 32:xiv-xxi. [PMID: 36930536 DOI: 10.12968/jowc.2023.32.sup3a.xiv] [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] [Indexed: 03/18/2023]
Abstract
Objective: The effects of topical tea tree oil (TTO) on the healing of pressure ulcers (PUs) in an animal model was evaluated. Method: To induce PUs, ischaemia-reperfusion cycles were performed by the external application of magnetic plates, with an ischaemic period of eight hours and a reperfusion period of 16 hours. Male and female Wistar rats were divided into three equally sized groups (n=20): one group received topical glycerin twice daily, another group received topical 10% (volume/volume (v/v)) TTO in glycerin twice daily; and the remaining group was untreated. The animals were assessed after one, four, seven and 14 cycles of ischaemia-reperfusion by thermal camera imaging, and then euthanised and sampled to investigate the degree of inflammation, collagen synthesis and apoptosis in the PUs. Results: Although topical glycerin alone suppressed local inflammation and apoptosis, this suppressive effect was accentuated at all timepoints by the application of topical TTO + glycerin. Similarly, an increase in collagen synthesis was observed in the glycerin group and this was accentuated by TTO at all timepoints. Parallel to the histological findings, the local temperature had decreased significantly on days 4 and 7 for both treatment groups (glycerin and TTO+glycerin). Conclusion: In this study, treatment with 10% (v/v) TTO in glycerin effectively suppressed skin inflammation and apoptosis, while it increased collagen synthesis during PU formation.
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Affiliation(s)
| | - Nurten Alan
- Dokuz Eylul University, Faculty of Nursing, Izmir, Turkey
| | - Pinar Akokay
- Kavram Vocational School, Medical Laboratory Section, Izmir, Turkey
| | - Sibel Büyükçoban
- Department of Anesthesiology and Reanimation, Dokuz Eylül University Faculty of Medicine, Izmir, Turkey
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Oran NT, Alan N, Akokay P, Büyükçoban S, Uğur Ergür B. The healing effect of topical tea tree oil on pressure ulcers in a rat model. J Wound Care 2023; 32:xiv-xxi. [PMID: 36930195 DOI: 10.12968/jowc.2023.32.3.xiv] [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] [Indexed: 03/18/2023]
Abstract
Objective: The effects of topical tea tree oil (TTO) on the healing of pressure ulcers (PUs) in an animal model was evaluated. Method: To induce PUs, ischaemia-reperfusion cycles were performed by the external application of magnetic plates, with an ischaemic period of eight hours and a reperfusion period of 16 hours. Male and female Wistar rats were divided into three equally sized groups (n=20): one group received topical glycerin twice daily, another group received topical 10% (volume/volume (v/v)) TTO in glycerin twice daily; and the remaining group was untreated. The animals were assessed after one, four, seven and 14 cycles of ischaemia-reperfusion by thermal camera imaging, and then euthanised and sampled to investigate the degree of inflammation, collagen synthesis and apoptosis in the PUs. Results: Although topical glycerin alone suppressed local inflammation and apoptosis, this suppressive effect was accentuated at all timepoints by the application of topical TTO + glycerin. Similarly, an increase in collagen synthesis was observed in the glycerin group and this was accentuated by TTO at all timepoints. Parallel to the histological findings, the local temperature had decreased significantly on days 4 and 7 for both treatment groups (glycerin and TTO+glycerin). Conclusion: In this study, treatment with 10% (v/v) TTO in glycerin effectively suppressed skin inflammation and apoptosis, while it increased collagen synthesis during PU formation.
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Affiliation(s)
| | - Nurten Alan
- Dokuz Eylul University, Faculty of Nursing, Izmir, Turkey
| | - Pinar Akokay
- Kavram Vocational School, Medical Laboratory Section, Izmir, Turkey
| | - Sibel Büyükçoban
- Department of Anesthesiology and Reanimation, Dokuz Eylül University Faculty of Medicine, Izmir, Turkey
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Evaluating the efficacy of internal teat sealants at dry-off for the prevention of new intra-mammary infections during the dry-period or clinical mastitis during early lactation in dairy cows: A systematic review update and sequential meta-analysis. Prev Vet Med 2023; 212:105841. [PMID: 36657355 DOI: 10.1016/j.prevetmed.2023.105841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 12/09/2022] [Accepted: 01/08/2023] [Indexed: 01/13/2023]
Abstract
A systematic review and Bayesian sequential pair-wise meta-analyses were conducted to assess the efficacy of internal teat sealants (ITS) administered at dry-off in comparison to no treatment for preventing new intramammary infections (IMI) and clinical mastitis (CM) in dairy cattle. This work updated a previous systematic review and network meta-analysis conducted in 2019 but employed a narrowed scope and eligibility. The updated eligibility included studies that used ITS without concurrent therapy compared to a no treatment control (NTC), a study population of dairy cows or prepartum heifers, controlled trial design, and assessed one of the following outcomes: incidence of new IMI at calving or CM during the first 30 days in milk (DIM). Risk of bias was assessed through the Cochrane Risk of Bias 2.0 tool. Evidence quality was assessed using Grading of Recommendations Assessment, Development, and Evaluation (GRADE). There were 141 potentially relevant records identified from the updated search conducted on April 29, 2021, with a publication date restriction of 2018 or later; one study passed full-text screening and was included. Of the 32 studies included in the previous review, 12 studies were relevant after applying the modified eligibility criteria, totaling 13 studies included in this review (12 addressing IMI at calving outcome, 4 addressing CM at 30 DIM outcome). Sequential meta-analysis was conducted for both outcomes in R 3.6.0. Decisions for stopping were assessed at each analysis for intervention effect or futility in finding an effect based on a priori minimum clinically relevant values (ORδ =0.5, 0.75). ITS at dry-off significantly reduced odds of new IMI at calving compared to NTC at the second meta-analysis (OR2 =0.27, 95% CI=0.22-0.34), and onward (OR12 =0.29, 95% CI=0.27-0.32). For CM at 30 DIM, significance was reached at the second meta-analysis (OR2 =0.59, 95% CI=0.47-0.73), and onward (OR3 =0.47, 95% CI=0.42-0.51). Stopping for effect occurred at the second analysis in both outcomes and ORδs, but low-quality evidence and heterogeneity concerns were noted. A continuity-correction to include zero-event CM studies showed significance at the third meta-analysis (OR3 =0.79, 95% CI=0.73-0.86), stopping for effect at the fourth for ORδ = 0.75 (OR4 =0.77, 95% CI=0.72-0.83), and stopping for futility at the second for ORδ = 0.5 (OR2 =0.94, 95% CI=0.75-1.20), but the main CM analysis was considered more appropriate due to the sensitivity analysis' very low-quality evidence assessment. Based on sequential evidence available, sufficient research currently exists for practical use, and cessation of future research until substantial changes to ITS application occur may be appropriate.
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Lin Y, Qiu Z, Lin X, Wu Y, Niu X, Yin G, Shao D, Xiang X, Li Y, Yang C. The Role of MbEGS1 and MbEGS2 in Methyleugenol Biosynthesis by Melaleuca bracteata. PLANTS (BASEL, SWITZERLAND) 2023; 12:1026. [PMID: 36903887 PMCID: PMC10005710 DOI: 10.3390/plants12051026] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 02/22/2023] [Accepted: 02/22/2023] [Indexed: 06/18/2023]
Abstract
Many aromatic plant volatile compounds contain methyleugenol, which is an attractant for insect pollination and has antibacterial, antioxidant, and other properties. The essential oil of Melaleuca bracteata leaves contains 90.46% methyleugenol, which is an ideal material for studying the biosynthetic pathway of methyleugenol. Eugenol synthase (EGS) is one of the key enzymes involved in the synthesis of methyleugenol. We recently reported two eugenol synthase genes (MbEGS1 and MbEGS2) present in M. bracteata, where MbEGS1 and MbEGS2 were mainly expressed in flowers, followed by leaves, and had the lowest expression levels in stems. In this study, the functions of MbEGS1 and MbEGS2 in the biosynthesis of methyleugenol were investigated using transient gene expression technology and virus-induced gene silencing (VIGS) technology in M. bracteata. Here, in the MbEGSs genes overexpression group, the transcription levels of the MbEGS1 gene and MbEGS2 gene were increased 13.46 times and 12.47 times, respectively, while the methyleugenol levels increased 18.68% and 16.48%. We further verified the function of the MbEGSs genes by using VIGS, as the transcript levels of the MbEGS1 and MbEGS2 genes were downregulated by 79.48% and 90.35%, respectively, and the methyleugenol content in M. bracteata decreased by 28.04% and 19.45%, respectively. The results indicated that the MbEGS1 and MbEGS2 genes were involved in the biosynthesis of methyleugenol, and the transcript levels of the MbEGS1 and MbEGS2 genes correlated with the methyleugenol content in M. bracteata.
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Affiliation(s)
- Yongsheng Lin
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Institute of Natural Products of Horticultural Plants, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Ziwen Qiu
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Institute of Natural Products of Horticultural Plants, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xiaojie Lin
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Institute of Natural Products of Horticultural Plants, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yingxiang Wu
- Qingyuan Agricultural Science and Technology Extension Service Center, Qingyuan 511518, China
| | - Xianqian Niu
- Fujian Institute of Tropical Crops, Zhangzhou 363001, China
| | - Guanwen Yin
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Institute of Natural Products of Horticultural Plants, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Dandan Shao
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Institute of Natural Products of Horticultural Plants, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xuwen Xiang
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Institute of Natural Products of Horticultural Plants, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yongyu Li
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Institute of Natural Products of Horticultural Plants, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Chao Yang
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Institute of Natural Products of Horticultural Plants, Fujian Agriculture and Forestry University, Fuzhou 350002, China
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Filatov VA, Kulyak OY, Kalenikova EI. Chemical Composition and Antimicrobial Potential of a Plant-Based Substance for the Treatment of Seborrheic Dermatitis. Pharmaceuticals (Basel) 2023; 16:ph16030328. [PMID: 36986428 PMCID: PMC10053605 DOI: 10.3390/ph16030328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/08/2023] [Accepted: 02/10/2023] [Indexed: 02/23/2023] Open
Abstract
Seborrheic dermatitis (SD) is the most prevalent dermatological disease, occurring in up to 50% of newborns, children, and adults around the world. The antibacterial and antifungal resistance contributed to the search for new natural substances and the development of a novel substance based on Melaleuca alternifolia (M. alternifolia) leaf oil (TTO), 1,8-cineole (eucalyptol), and α-(-)-bisabolol. Thus, this work aimed to determine the chemical composition of the novel plant-based substance and to evaluate its antimicrobial activity against standard microorganisms involved in the pathogenesis of SD. Moreover, the chemical composition of the substance was analyzed by gas chromatography coupled with mass spectrometry (GC/MS). Staphylococcus epidermidis (S. epidermidis), Staphylococcus aureus (S. aureus), Micrococcus luteus (M. luteus), and Candida albicans (C. albicans) were used for antimicrobial and antifungal assays by means of the broth microdilution method to determine the minimal inhibitory concentration (MIC). Finally, the substance’s ability to inhibit Malassezia furfur (M. furfur) was evaluated. Eighteen compounds from different chemical groups were identified by GC/MS. The major biologically active compounds of the substance were terpinen-4-ol (20.88%), 1,8-cineole (22.28%), (-)-α-bisabolol (25.73%), and o-cymene (8.16%). The results showed that the substance has a synergistic antimicrobial and antifungal activity, while S. epidermidis and C. albicans strains were the most susceptible. Furthermore, the substance inhibited M. furfur, which is a main pathogen involved in the pathogenesis of SD and clinical manifestations. It can be concluded that the novel plant-based substance has a promising potential against M. furfur and scalp commensal bacteria and may be helpful for the development of new drugs for treatment of dandruff and SD.
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Affiliation(s)
- Viktor A. Filatov
- Department of Pharmaceutical Chemistry, Pharmacognosy and Organization of Pharmaceutical Business, Faculty of Basic Medicine, M.V. Lomonosov Moscow State University, 27/1 Lomonosovsky Avenue, 119991 Moscow, Russia
- SkyLab AG, 1066 Lausanne, Switzerland
- Correspondence:
| | - Olesya Yu. Kulyak
- Department of Pharmaceutical Chemistry, Pharmacognosy and Organization of Pharmaceutical Business, Faculty of Basic Medicine, M.V. Lomonosov Moscow State University, 27/1 Lomonosovsky Avenue, 119991 Moscow, Russia
- All-Russian Scientific Research Institute of Medicinal and Aromatic Plants, 117216 Moscow, Russia
| | - Elena I. Kalenikova
- Department of Pharmaceutical Chemistry, Pharmacognosy and Organization of Pharmaceutical Business, Faculty of Basic Medicine, M.V. Lomonosov Moscow State University, 27/1 Lomonosovsky Avenue, 119991 Moscow, Russia
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Ali FE, Ibrahim IM, Ghogar OM, Abd-alhameed EK, Althagafy HS, Hassanein EH. Therapeutic interventions target the NLRP3 inflammasome in ulcerative colitis: Comprehensive study. World J Gastroenterol 2023; 29:1026-1053. [PMID: 36844140 PMCID: PMC9950862 DOI: 10.3748/wjg.v29.i6.1026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 12/29/2022] [Accepted: 01/30/2023] [Indexed: 02/10/2023] Open
Abstract
One of the significant health issues in the world is the prevalence of ulcerative colitis (UC). UC is a chronic disorder that mainly affects the colon, beginning with the rectum, and can progress from asymptomatic mild inflammation to extensive inflammation of the entire colon. Understanding the underlying molecular mechanisms of UC pathogenesis emphasizes the need for innovative therapeutic approaches based on identifying molecular targets. Interestingly, in response to cellular injury, the NLR family pyrin domain containing 3 (NLRP3) inflammasome is a crucial part of the inflammation and immunological reaction by promoting caspase-1 activation and the release of interleukin-1β. This review discusses the mechanisms of NLRP3 inflammasome activation by various signals and its regulation and impact on UC.
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Affiliation(s)
- Fares E.M Ali
- Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt
| | - Islam M. Ibrahim
- Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt
| | - Osama M Ghogar
- Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt
| | - Esraa K. Abd-alhameed
- Pharmacology and Toxicology, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 12345, Egypt
| | - Hanan S. Althagafy
- Department of Biochemistry, Faculty of Science, University of Jeddah, Jeddah 12345, Saudi Arabia
| | - Emad H.M. Hassanein
- Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt
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