1
|
Garcia-Orue I, Santos-Vizcaino E, Uranga J, de la Caba K, Guerrero P, Igartua M, Hernandez RM. Agar/gelatin hydro-film containing EGF and Aloe vera for effective wound healing. J Mater Chem B 2023; 11:6896-6910. [PMID: 37377169 DOI: 10.1039/d2tb02796h] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2023]
Abstract
In the current study, we produced a hydro-film dressing for the treatment of chronic wounds. The hydro-film structure was composed of gelatin cross-linked with citric acid, agar and Aloe vera extract (AV); additionally epidermal growth factor (EGF) was loaded to promote wound healing. Due to the excellent hydrogel-forming ability of gelatin, the obtained hydro-film was able to swell 884 ± 36% of its dry weight, which could help controlling wound moisture. To improve gelatin mechanical properties, polymer chains were cross-linked with citric acid and agar, reaching an ultimate tensile strength that was in the highest range of human skin. In addition, it showed a slow degradation profile that resulted in a remaining weight of 28 ± 8% at day 28. Regarding, biological activity, the addition of AV and citric acid provided the ability to reduce human macrophage activation, which could help reverse the permanent inflammatory state of chronic wounds. Moreover, loaded EGF, together with the structural AV of the hydro-film, promoted human keratinocyte and fibroblast migration, respectively. Furthermore, the hydro-films presented excellent fibroblast adhesiveness, so they could be useful as provisional matrices for cell migration. Accordingly, these hydro-films showed suitable physicochemical characteristics and biological activity for chronic wound healing applications.
Collapse
Affiliation(s)
- Itxaso Garcia-Orue
- NanoBioCel Research Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country (UPV-EHU), Vitoria-Gasteiz, Spain.
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN). Institute of Health Carlos III, Madrid, Spain
- Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain
| | - Edorta Santos-Vizcaino
- NanoBioCel Research Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country (UPV-EHU), Vitoria-Gasteiz, Spain.
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN). Institute of Health Carlos III, Madrid, Spain
- Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain
| | - Jone Uranga
- BIOMAT Research Group, University of the Basque Country (UPV/EHU), Escuela de Ingeniería de Gipuzkoa, Plaza de Europa 1, 20018 Donostia-San Sebastián, Spain.
| | - Koro de la Caba
- BIOMAT Research Group, University of the Basque Country (UPV/EHU), Escuela de Ingeniería de Gipuzkoa, Plaza de Europa 1, 20018 Donostia-San Sebastián, Spain.
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940, Leioa, Spain
| | - Pedro Guerrero
- BIOMAT Research Group, University of the Basque Country (UPV/EHU), Escuela de Ingeniería de Gipuzkoa, Plaza de Europa 1, 20018 Donostia-San Sebastián, Spain.
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940, Leioa, Spain
- Proteinmat materials SL, Avenida de Tolosa 72, 20018 Donostia-San Sebastian, Spain
| | - Manoli Igartua
- NanoBioCel Research Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country (UPV-EHU), Vitoria-Gasteiz, Spain.
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN). Institute of Health Carlos III, Madrid, Spain
- Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain
| | - Rosa Maria Hernandez
- NanoBioCel Research Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country (UPV-EHU), Vitoria-Gasteiz, Spain.
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN). Institute of Health Carlos III, Madrid, Spain
- Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain
| |
Collapse
|
2
|
Namazi SS, Mahmoud AH, Dal-Fabbro R, Han Y, Xu J, Sasaki H, Fenno JC, Bottino MC. Multifunctional and biodegradable methacrylated gelatin/Aloe vera nanofibers for endodontic disinfection and immunomodulation. BIOMATERIALS ADVANCES 2023; 150:213427. [PMID: 37075551 PMCID: PMC11027083 DOI: 10.1016/j.bioadv.2023.213427] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 03/21/2023] [Accepted: 04/08/2023] [Indexed: 04/21/2023]
Abstract
Currently employed approaches and materials used for vital pulp therapies (VPTs) and regenerative endodontic procedures (REPs) lack the efficacy to predictably achieve successful outcomes due to their inability to achieve adequate disinfection and/or lack of desired immune modulatory effects. Natural polymers and medicinal herbs are biocompatible, biodegradable, and present several therapeutic benefits and immune-modulatory properties; thus, standing out as a clinically viable approach capable of establishing a conducive environment devoid of bacteria and inflammation to support continued root development, dentinal bridge formation, and dental pulp tissue regeneration. However, the low stability and poor mechanical properties of the natural compounds have limited their application as potential biomaterials for endodontic procedures. In this study, Aloe vera (AV), as a natural antimicrobial and anti-inflammatory agent, was incorporated into photocrosslinkable Gelatin methacrylate (GelMA) nanofibers with the purpose of developing a highly biocompatible biomaterial capable of eradicating endodontic infection and modulating inflammation. Stable GelMA/AV nanofibers with optimal properties were obtained at the ratio of (70:30) by electrospinning. In addition to the pronounced antibacterial effect against Enterococcus faecalis, the GelMA/AV (70:30) nanofibers also exhibited a sustained antibacterial activity over 14 days and significant biofilm reduction with minimal cytotoxicity, as well as anti-inflammatory properties and immunomodulatory effects favoring healing. Our results indicate that the novel GelMA/AV (70:30) nanofibers hold great potential as a biomaterial strategy for endodontic infection eradication and enhanced healing.
Collapse
Affiliation(s)
- Sharon S Namazi
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - Abdel H Mahmoud
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - Renan Dal-Fabbro
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - Yuanyuan Han
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - Jinping Xu
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - Hajime Sasaki
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - J Christopher Fenno
- Department of Biologic and Materials Sciences & Prosthodontics, University of Michigan School of Dentistry, Ann Arbor, MI, USA
| | - Marco C Bottino
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, USA; Department of Biomedical Engineering, College of Engineering, University of Michigan, Ann Arbor, MI, USA.
| |
Collapse
|
3
|
Accipe L, Abadie A, Neviere R, Bercion S. Antioxidant Activities of Natural Compounds from Caribbean Plants to Enhance Diabetic Wound Healing. Antioxidants (Basel) 2023; 12:antiox12051079. [PMID: 37237945 DOI: 10.3390/antiox12051079] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 04/23/2023] [Accepted: 04/28/2023] [Indexed: 05/28/2023] Open
Abstract
Diabetic wound healing is a global medical challenge. Several studies showed that delayed healing in diabetic patients is multifactorial. Nevertheless, there is evidence that excessive production of ROS and impaired ROS detoxification in diabetes are the main cause of chronic wounds. Indeed, increased ROS promotes the expression and activity of metalloproteinase, resulting in a high proteolytic state in the wound with significant destruction of the extracellular matrix, which leads to a stop in the repair process. In addition, ROS accumulation increases NLRP3 inflammasome activation and macrophage hyperpolarization in the M1 pro-inflammatory phenotype. Oxidative stress increases the activation of NETosis. This leads to an elevated pro-inflammatory state in the wound and prevents the resolution of inflammation, an essential step for wound healing. The use of medicinal plants and natural compounds can improve diabetic wound healing by directly targeting oxidative stress and the transcription factor Nrf2 involved in the antioxidant response or the mechanisms impacted by the elevation of ROS such as NLRP3 inflammasome, the polarization of macrophages, and expression or activation of metalloproteinases. This study of the diabetic pro-healing activity of nine plants found in the Caribbean highlights, more particularly, the role of five polyphenolic compounds. At the end of this review, research perspectives are presented.
Collapse
Affiliation(s)
- Laura Accipe
- UR5_3 PC2E Cardiac Pathology, Environmental Toxicity and Envenomations, Université des Antilles, BP 250, CEDEX, 97157 Pointe à Pitre, France
| | - Alisson Abadie
- UR5_3 PC2E Cardiac Pathology, Environmental Toxicity and Envenomations, Université des Antilles, BP 250, CEDEX, 97157 Pointe à Pitre, France
| | - Remi Neviere
- UR5_3 PC2E Cardiac Pathology, Environmental Toxicity and Envenomations, Université des Antilles, BP 250, CEDEX, 97157 Pointe à Pitre, France
- CHU Martinique, University Hospital of Martinique, 97200 Fort de France, France
| | - Sylvie Bercion
- UR5_3 PC2E Cardiac Pathology, Environmental Toxicity and Envenomations, Université des Antilles, BP 250, CEDEX, 97157 Pointe à Pitre, France
| |
Collapse
|
4
|
Ahluwalia B, Magnusson MK, Larsson F, Savolainen O, Ross AB, Öhman L. Differences in Metabolite Composition of Aloe barbadensis Mill. Extracts Lead to Differential Effects on Human Blood T Cell Activity In Vitro. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27196643. [PMID: 36235182 PMCID: PMC9571688 DOI: 10.3390/molecules27196643] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 09/28/2022] [Accepted: 10/04/2022] [Indexed: 11/06/2022]
Abstract
Aloe barbadensis Mill. (Aloe) is used for diverse therapeutic properties including immunomodulation. However, owing to the compositionally complex nature of Aloe, bioactive component(s) responsible for its beneficial properties, though thought to be attributed to polysaccharides (acemannan), remain unknown. We therefore aimed to determine the metabolite composition of various commercial Aloe extracts and assess their effects on human blood T cell activity in vitro. Peripheral blood mononuclear cells (PBMC) from healthy donors were stimulated polyclonally in presence or absence of various Aloe extracts. T cell phenotype and proliferation were investigated by flow cytometry. Aloe extracts were analyzed using targeted 1H-NMR spectroscopy for standard phytochemical quality characterization and untargeted gas chromatography mass spectrometry (GC-MS) for metabolite profiling. Aloe extracts differing in their standard phytochemical composition had varying effects on T cell activation, proliferation, apoptosis, and cell-death in vitro, although this was not related to the acemannan content. Furthermore, each Aloe extract had its own distinct metabolite profile, where extracts rich in diverse sugar and sugar-derivatives were associated with reduced T cell activity. Our results demonstrate that all commercial Aloe extracts are unique with distinct metabolite profiles, which lead to differential effects on T cell activity in vitro, independent of the acemannan content.
Collapse
Affiliation(s)
- Bani Ahluwalia
- Department of Microbiology and Immunology, Institute of Biomedicine, University of Gothenburg, 405 30 Gothenburg, Sweden
- Research and Development, Calmino Group AB, 413 46 Gothenburg, Sweden
- Correspondence:
| | - Maria K. Magnusson
- Department of Microbiology and Immunology, Institute of Biomedicine, University of Gothenburg, 405 30 Gothenburg, Sweden
| | - Fredrik Larsson
- Research and Development, Calmino Group AB, 413 46 Gothenburg, Sweden
| | - Otto Savolainen
- Chalmers Mass Spectrometry Infrastructure, Department of Biology and Biological Engineering, Chalmers University of Technology, 412 96 Gothenburg, Sweden
- Faculty of Health Sciences, Institute of Public Health and Clinical Nutrition, University of Eastern Finland, 70211 Kuopio, Finland
| | - Alastair B. Ross
- Chalmers Mass Spectrometry Infrastructure, Department of Biology and Biological Engineering, Chalmers University of Technology, 412 96 Gothenburg, Sweden
- Proteins and Metabolites Team, AgResearch, Lincoln 7674, New Zealand
| | - Lena Öhman
- Department of Microbiology and Immunology, Institute of Biomedicine, University of Gothenburg, 405 30 Gothenburg, Sweden
| |
Collapse
|
5
|
Guberti M, Botti S, Caffarri C, Cavuto S, Savoldi L, Fusco A, Merli F, Piredda M, De Marinis MG. Efficacy and safety of a colostrum- and Aloe vera-based oral care protocol to prevent and treat severe oral mucositis in patients undergoing hematopoietic stem cell transplantation: a single-arm phase II study. Ann Hematol 2022; 101:2325-2336. [PMID: 35922679 PMCID: PMC9463213 DOI: 10.1007/s00277-022-04934-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 07/24/2022] [Indexed: 11/12/2022]
Abstract
Oral mucositis is one of the worst effects of the conditioning regimens given to patients undergoing hematopoietic stem cell transplantation. It is characterized by dry mouth, erythema, mucosal soreness, ulcers, and pain, and it may impact patient outcomes. Bovine colostrum and Aloe vera contain a wide variety of biologically active compounds that promote mucosal healing. A non-randomized phase II study was designed to assess the safety and efficacy of a combined bovine colostrum and Aloe vera oral care protocol to prevent and to treat severe oral mucositis in transplant patients. Two commercially available products were given to patients in addition to the standard protocol: Remargin Colostrum OS® mouthwash and Remargin Colostrum Gastro-Gel® taken orally. Forty-six (78.0%) patients experienced oral mucositis, 40 (67.8%) developed mild-moderate forms, and 6 (10.2%) severe ones. Comparing the study group's outcomes with those of a homogeneous historical control group, severe oral mucositis decreased significantly (10.2% vs. 28.4%; P < 0.01), as did its duration (0.5 ± 1.9 vs. 1.5 ± 3.0 days; P < 0.01). Febrile neutropenia episodes (69.5% vs. 95.1%; P < 0.01) and duration (4.0 ± 4.7 vs. 6.2 ± 4.5 days; P < 0.01) also decreased. These findings show that the experimental protocol seems effective in preventing severe forms of oral mucositis. However, a randomized controlled trial is necessary to confirm this.
Collapse
Affiliation(s)
- Monica Guberti
- Research and EBP Unit, Health Professions Department, Azienda USL-IRCCS Di Reggio Emilia, Via Amendola 2, 42122 Reggio Emilia, Italy
- Department of Biomedicine and Prevention, University of Rome “Tor Vergata”, Via Montpellier, 1 - 00133 Rome, Italy
| | - Stefano Botti
- Hematology Unit, Azienda USL-IRCCS Di Reggio Emilia, Via Amendola 2, 42122 Reggio Emilia, Italy
| | - Cristiana Caffarri
- Hematology Unit, Azienda USL-IRCCS Di Reggio Emilia, Via Amendola 2, 42122 Reggio Emilia, Italy
| | - Silvio Cavuto
- Clinical Trials and Statistics Unit, SC Infrastructure, Research and Statistics, Azienda USL-IRCCS Di Reggio Emilia, Via Amendola 2, 42123 Reggio Emilia, Italy
| | - Luisa Savoldi
- Clinical Trials and Statistics Unit, SC Infrastructure, Research and Statistics, Azienda USL-IRCCS Di Reggio Emilia, Via Amendola 2, 42123 Reggio Emilia, Italy
| | - Andrea Fusco
- Research and EBP Unit, Health Professions Department, Azienda USL-IRCCS Di Reggio Emilia, Via Amendola 2, 42122 Reggio Emilia, Italy
| | - Francesco Merli
- Hematology Unit, Azienda USL-IRCCS Di Reggio Emilia, Via Amendola 2, 42122 Reggio Emilia, Italy
| | - Michela Piredda
- Research Unit Nursing Science, University Campus Bio-Medico of Rome, Via Alvaro del Portillo 21, 00128 Rome, Italy
| | - Maria Grazia De Marinis
- Research Unit Nursing Science, University Campus Bio-Medico of Rome, Via Alvaro del Portillo 21, 00128 Rome, Italy
| |
Collapse
|
6
|
Mehmood A, Javid S, Khan MF, Ahmad KS, Mustafa A. In vitro total phenolics, total flavonoids, antioxidant and antibacterial activities of selected medicinal plants using different solvent systems. BMC Chem 2022; 16:64. [PMID: 36030245 PMCID: PMC9419333 DOI: 10.1186/s13065-022-00858-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 08/22/2022] [Indexed: 11/10/2022] Open
Abstract
Recently, an interest has surged in utilizing indigenous medicinal plants to treat infectious illnesses and extract bioactive substances, highlighting the need to analyze medicinal plants for phytochemicals and bioactivities. The present study was aimed to evaluate the impact of different solvent systems (aqueous, ethanol, and methanol) used for extraction on total phenolics, total flavonoids, antioxidant, and antibacterial activity of three medicinal plants of Azad Kashmir (Achillea millefolium, Bergenia ciliata, and Aloe vera). High phenolic content was found in methanol extracts of B. ciliata (27.48 ± 0.58 mg GAE/g dry weight), A. vera (25.61 ± 0.33 mg GAE/g dry weight), and A. millefolium (24.25 ± 0.67 mg GAE/g dry weight). High flavonoid content was obtained in the ethanol extract of A. millefolium (27.13 ± 0.64 mg QE/g dry weight), methanol extract of B. ciliata (17.44 ± 0.44 ± 0.44 mg QE/g dry weight), and the methanol extract of A. vera (14.68 ± 0.67 mg QE/g dry weight). Strong 2,2-diphenyl-1-picrylhydrazyl radical scavenging activity (DPPH) was obtained with a methanol extract of B. ciliata (IC50 = 60.27 ± 0.20 µg/mL). With a zone of inhibition and a minimum inhibitory concentration ranging from 10.00 ± 0.66 to 24.67 ± 1.21 mm and 78 to 625 µg/mL, respectively, all of the studied plants demonstrated notable antibacterial activity against Staphylococcus aureus and Escherichia coli. A. vera showed greater antibacterial activity as compared to other plants under study while methanolic extract showed greater antibacterial activity than ethanolic and aqueous extract. The findings of this research support the use of these medicinal plants to treat a variety of diseases.
Collapse
Affiliation(s)
- Ansar Mehmood
- Department of Botany, University of Poonch Rawalakot (UPR), Rawalakot, Azad Kashmir, 12350, Pakistan.
| | - Sonia Javid
- Department of Botany, University of Poonch Rawalakot (UPR), Rawalakot, Azad Kashmir, 12350, Pakistan
| | - Muhammad Faraz Khan
- Department of Botany, University of Poonch Rawalakot (UPR), Rawalakot, Azad Kashmir, 12350, Pakistan
| | - Khawaja Shafique Ahmad
- Department of Botany, University of Poonch Rawalakot (UPR), Rawalakot, Azad Kashmir, 12350, Pakistan
| | - Amna Mustafa
- Department of Botany, University of Poonch Rawalakot (UPR), Rawalakot, Azad Kashmir, 12350, Pakistan
| |
Collapse
|
7
|
Narayanan P, Farghadani R, Nyamathulla S, Rajarajeswaran J, Thirugnanasampandan R, Bhuwaneswari G. Natural quinones induce ROS-mediated apoptosis and inhibit cell migration in PANC-1 human pancreatic cancer cell line. J Biochem Mol Toxicol 2022; 36:e23008. [PMID: 35253318 DOI: 10.1002/jbt.23008] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 12/23/2021] [Accepted: 01/04/2022] [Indexed: 12/25/2022]
Abstract
Pancreatic cancer is one of the most devastating of all malignancies with poor prognosis and high mortality rates worldwide. Thymoquinone, plumbagin and juglone, which are naturally occurring quinones, have been reported for their promising anticancer effect on different cancer cells. However, their mechanism of action and antimetastatic effects are largely unknown against the human pancreatic cancer cell line (PANC-1). In this study, the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) cytotoxicity assay revealed a dose-dependent decrease of viability in quinone-treated PANC-1 cells. In addition, the assessment of changes in cells has demonstrated an occurrence of typical apoptotic morphology in treated PANC-1 cells compared with control. Besides this, the apoptosis induction was further quantitatively confirmed through flow cytometry analysis. Furthermore, thymoquinone, plumbagin and juglone were evaluated for their influence on reactive oxygen species (ROS) generation through 2,7-dichlorofluorescein diacetate (DCFDA) staining and they dramatically increased the intracellular ROS level in treated PANC-1 cells, suggesting the critical role of ROS in their apoptosis induction. This study also demonstrated the wound healing potential of these compounds and inhibited PANC-1 cell migration in a time-dependent manner compared with control. This inhibition was correlated with reduced expression of matrix metalloproteinase-9 (MMP-9) in juglone-treated cells detected through gelatin zymography. In conclusion, thymoquinone, plumbagin and juglone significantly inhibited cell growth and induced ROS-mediated apoptosis in PANC-1 cells. In addition, they could be potent antimetastatic agents due to their anti-migratory effect against PANC-1 human pancreatic cancer cells.
Collapse
Affiliation(s)
- Prasad Narayanan
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Reyhaneh Farghadani
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Selangor Darul Ehsan, Malaysia
| | - Shaik Nyamathulla
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Universiti Malaya, Kuala Lumpur, Malaysia
- Centre for Natural Products Research and Drug Discovery (CENAR), Universiti Malaya, Kuala Lumpur, Malaysia
| | - Jayakumar Rajarajeswaran
- Department of Biomedical Engineering, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Thandalam, Chennai, India
| | - R Thirugnanasampandan
- Postgraduate and Research Department of Botany, Kongunadu Arts and Science College, Coimbatore, Tamil Nadu, India
| | - Gunasekaran Bhuwaneswari
- Postgraduate and Research Department of Biotechnology, Kongunadu Arts and Science College, Coimbatore, Tamil Nadu, India
| |
Collapse
|
8
|
Saising J, Maneenoon K, Sakulkeo O, Limsuwan S, Götz F, Voravuthikunchai SP. Ethnomedicinal Plants in Herbal Remedies Used for Treatment of Skin Diseases by Traditional Healers in Songkhla Province, Thailand. PLANTS (BASEL, SWITZERLAND) 2022; 11:880. [PMID: 35406860 PMCID: PMC9003147 DOI: 10.3390/plants11070880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/21/2022] [Accepted: 03/23/2022] [Indexed: 06/14/2023]
Abstract
Skin disorders are a worldwide health problem that normally affect human life. A traditional healer is an important expert in researching notable medicinal plants for skin disease treatment. This study aimed to determine the traditional knowledge and the use of medicinal plants for the treatment of skin diseases among traditional healers in the Songkhla province, Thailand. The ethnobotanical information was collected from experienced traditional healers by semi-structured interviews and participant observations. Plant specimens were also collected and identified using the standard taxonomic method. The data were analyzed by interpretation and descriptive statistics. Twenty-five polyherbal formulations for the treatment of skin diseases were obtained from traditional healers with at least 10 years of experience. A total of 66 plant species in 38 families were documented. Leaves and trees were the most commonly employed plant parts and plant habits included in the herbal remedies, respectively. Fabaceae, Rubiaceae, and Zingiberaceae were the majority of the cited families. Oryza sativa L. and Zingiber montanum (J. Koenig) Link ex A.Dietr. were the most preferred plants combined in the prescriptions, which had the highest use value (UV = 0.83). The highest relative frequency of citation was represented by Curcuma longa L., Eurycoma longifolia Jack, Knema globularia (Lamk.) Warb, and Senna siamea (Lam.) Irwin & Barneby. (0.55 each). This research suggests the importance of traditional healers in the healing of skin diseases with herbal remedies. A variety of medicinal plants are used in the prescriptions for the treatment of skin disorders in the Songkhla province, in the south of Thailand. Pharmacological and toxicological activities as well as phytochemical constituents of polyherbal remedies should be further investigated to scientifically verify further applications of widely practiced herbal medicines.
Collapse
Affiliation(s)
- Jongkon Saising
- Center of Antimicrobial Biomaterial Innovation-Southeast Asia and Natural Product Research Center of Excellence, Faculty of Science, Prince of Songkla University, Hat Yai 90110, Thailand;
- School of Health Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Katesarin Maneenoon
- Traditional Thai Medical Research and Innovation Center, Faculty of Traditional Thai Medicine, Prince of Songkla University, Hat Yai 90110, Thailand; (K.M.); (O.S.); (S.L.)
| | - Oraphan Sakulkeo
- Traditional Thai Medical Research and Innovation Center, Faculty of Traditional Thai Medicine, Prince of Songkla University, Hat Yai 90110, Thailand; (K.M.); (O.S.); (S.L.)
| | - Surasak Limsuwan
- Traditional Thai Medical Research and Innovation Center, Faculty of Traditional Thai Medicine, Prince of Songkla University, Hat Yai 90110, Thailand; (K.M.); (O.S.); (S.L.)
| | - Friedrich Götz
- Microbial Genetics, Institute of Microbiology and Infection Medicine Tübingen, University of Tübingen, 72076 Tübingen, Germany;
| | - Supayang Piyawan Voravuthikunchai
- Center of Antimicrobial Biomaterial Innovation-Southeast Asia and Natural Product Research Center of Excellence, Faculty of Science, Prince of Songkla University, Hat Yai 90110, Thailand;
| |
Collapse
|
9
|
Naz S, Alam S, Ahmed W, Masaud Khan S, Qayyum A, Sabir M, Naz A, Iqbal A, Bibi Y, Nisa S, Salah Khalifa A, Gharib AF, El Askary A. Therapeutic Potential of Selected Medicinal Plant Extracts against Multi-Drug Resistant Salmonella enterica serovar Typhi. Saudi J Biol Sci 2022; 29:941-954. [PMID: 35197762 PMCID: PMC8847975 DOI: 10.1016/j.sjbs.2021.10.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 09/21/2021] [Accepted: 10/04/2021] [Indexed: 11/19/2022] Open
Abstract
Salmonella enterica serovar Typhi is Gram negative, rod shaped, facultative anaerobic bacterium, belongs to enterobacteriaceae family that causes typhoid fever in humans. This bacterium has become a super bug due to acquisition of multi drug resistance. Bacteria is transmitted through food and water contaminated with human feaces. Present study reports the screening of Adhatoda vasica, Amaranthus hybridus and Aloe barbadensis and their evaluation against multi-drug resistant Salmonella enterica serovar Typhi. Qualitative analysis of ten phytochemicals was conducted using chemical method and Gas Chromatography-Mass Spectrometry (GCMS). Antibacterial activity of plants was carried out by agar well diffusion method on Mueller Hinton agar. Total tannins, total alkaloids and total flavonoids of different parts of three plants were estimated through spectrophotometer. Total tannins content in different parts of plants was present in the given order Amaranthus hybridus leaf > Aloe barbadensis leaf > Adhatoda vasica leaf > Adhatoda vasica flower > Adhatoda vasica stem. Whereas, the order of total flavonoid concentration was Amaranthus hybridus leaf > Aloe barbadensis leaf > Adhatoda vasica leaf > Amaranthus hybridus seed. Total alkaloids have order, Adhatoda vasica leaf > Amaranthus hybridus leaf > Adhatoda vasica flower > Amaranthus hybridus seed > Aloe barbadensis leaf. Results of phytochemical analysis suggested that plants have strong profile of antioxidants, total phenolic contents and various enzymes proposing them best alternate to cure bacterial infections. GC-MS analysis further confirmed stronger phytochemical profile that can be utilized as antagonists to Salmonella enterica serovar Typhi.
Collapse
Affiliation(s)
- Sadaf Naz
- Department of Microbiology, The University of Haripur, Haripur 22620, Pakistan
| | - Sadia Alam
- Department of Microbiology, The University of Haripur, Haripur 22620, Pakistan
- Corresponding authors.
| | - Waseem Ahmed
- Department of Horticulture, The University of Haripur, Haripur 22620, Pakistan
| | - Shah Masaud Khan
- Department of Horticulture, The University of Haripur, Haripur 22620, Pakistan
| | - Abdul Qayyum
- Department of Agronomy, The University of Haripur, Haripur 22620, Pakistan
- Corresponding authors.
| | - Maimoona Sabir
- Department of Microbiology, The University of Haripur, Haripur 22620, Pakistan
| | - Alia Naz
- Department of Environmental Sciences, The University of Haripur, Haripur 22620, Pakistan
| | - Asia Iqbal
- Department of Wildlife & Ecology, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Yamin Bibi
- Department of Botany, PMAS-Arid Agriculture University Rawalpindi, Rawalpindi 46300, Pakistan
| | - Sobia Nisa
- Department of Microbiology, The University of Haripur, Haripur 22620, Pakistan
| | - Amany Salah Khalifa
- Department of Clinical Pathology and Pharmaceutics, College of Pharmacy, Taif University, Taif 21944, Saudi Arabia
| | - Amal F. Gharib
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taif University, Taif 21944, Saudi Arabia
| | - Ahmad El Askary
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taif University, Taif 21944, Saudi Arabia
| |
Collapse
|
10
|
Kaewsrisung S, Sukpat S, Issarasena N, Patumraj S, Somboonwong J. The effects of oral Aloe vera on the efficacy of transplanted human endothelial cells and the expression of matrix metalloproteinases in diabetic wound healing. Heliyon 2021; 7:e08533. [PMID: 34934844 DOI: 10.1016/j.heliyon.2021.e08533] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 11/16/2021] [Accepted: 11/29/2021] [Indexed: 11/15/2022] Open
Abstract
Background Diabetic wounds are characterized by delayed healing and impaired angiogenesis. Aloe vera and human umbilical vein endothelial cells (HUVECs) are reported to facilitate wound healing, and the former also has hypoglycemic property. Matrix metalloproteinases are enzymes that play a role in diabetic wound pathogenesis. Objective To investigate whether oral Aloe vera can enhance the efficacy of HUVEC transplantation and inhibit the expression of matrix metalloproteinases in wound healing of diabetic mice. Materials and methods BALB/c nude mice were randomly assigned into five groups: normal control group, diabetic group (DM), DM transplanted with HUVECs, DM treated with oral Aloe vera, and DM treated with combined HUVECs and oral Aloe vera. Diabetes was induced by streptozotocin. Bilateral full-thickness excision cutaneous wounds were created. At days 7 and 14 post-wounding, the following parameters were determined: blood glucose, wound area, wound perfusion, capillary vascularity, re-epithelialization rate and tissue VEGF levels. Tissue expressions of MMP-2 and MMP-9 were compared between the DM mice and those treated with oral Aloe vera. Results Over days 7 and 14, Aloe vera exerted glucose-lowering effect in diabetic mice. Higher wound closure rate, blood flow and capillary vascularity, and lower MMP-2 and MMP-9 expressions were observed at both time points in DM treated with Aloe vera group compared with DM group (P < 0.05). Moreover, combined therapy of HUVECs and oral Aloe vera was more effective than Aloe vera or HUVECs alone in increasing VEGF levels, capillary vascularity and wound perfusion. Blood glucose levels were negatively correlated with angiogenesis (P = 0.000. Conclusion It is suggested that oral Aloe vera enhances the efficacy of HUVEC transplantation on diabetic wound angiogenesis, partly through improving glycemic control. Oral Aloe vera also promotes diabetic wound healing via inhibition of MMP-2 and MMP-9 expressions.
Collapse
Affiliation(s)
- Supassanan Kaewsrisung
- Inter-Department of Physiology, Graduate School, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Supakanda Sukpat
- Department of Physiology, Center of Excellence for Microcirculation, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Nipan Issarasena
- Stem Cell and Cell Therapy Research Unit, Department of Pharmacology, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Suthiluk Patumraj
- Department of Physiology, Center of Excellence for Microcirculation, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Juraiporn Somboonwong
- Department of Physiology, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand
| |
Collapse
|
11
|
Nalimu F, Oloro J, Kahwa I, Ogwang PE. Review on the phytochemistry and toxicological profiles of Aloe vera and Aloe ferox. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2021; 7:145. [PMID: 34307697 PMCID: PMC8294304 DOI: 10.1186/s43094-021-00296-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 07/05/2021] [Indexed: 12/11/2022] Open
Abstract
Background Aloe vera and Aloe ferox have over the years been among the most sought-after Aloe species in the treatment of ailments worldwide. This review provides categorized literature on the phytochemical and scientifically proven toxicological profiles of A. vera and A. ferox to facilitate their exploitation in therapy. Main body of the abstract Original full-text research articles were searched in PubMed, ScienceDirect, Research gate, Google Scholar, and Wiley Online Library using specific phrases. Phenolic acids, flavonoids, tannins, and anthraquinones were the main phytochemical classes present in all the two Aloe species. Most of the phytochemical investigations and toxicity studies have been done on the leaves. Aloe vera and Aloe ferox contain unique phytoconstituents including anthraquinones, flavonoids, tannins, sterols, alkaloids, and volatile oils. Aloe vera hydroalcoholic leaf extract showed a toxic effect on Kabir chicks at the highest doses. The methanolic, aqueous, and supercritical carbon dioxide extracts of A. vera leaf gel were associated with no toxic effects. The aqueous leaf extract of A. ferox is well tolerated for short-term management of ailments but long-term administration may be associated with organ toxicity. Long-term administration of the preparations from A. vera leaves and roots was associated with toxic effects. Short conclusion This review provides beneficial information about the phytochemistry and toxicity of A. vera and A. ferox and their potential in the treatment of COVID-19 which up to date has no definite cure. Clinical trials need to be carried out to clearly understand the toxic effects of these species.
Collapse
Affiliation(s)
- Florence Nalimu
- Pharm-Bio Technology and Traditional Medicine Centre of Excellence, Mbarara University of Science and Technology, Mbarara, Uganda.,Department of Pharmaceutical Sciences, Faculty of Medicine, Mbarara University of Science and Technology, P.O. Box 1410, Mbarara, Uganda
| | - Joseph Oloro
- Pharm-Bio Technology and Traditional Medicine Centre of Excellence, Mbarara University of Science and Technology, Mbarara, Uganda.,Department of Pharmacology and Therapeutics, Faculty of Medicine, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Ivan Kahwa
- Pharm-Bio Technology and Traditional Medicine Centre of Excellence, Mbarara University of Science and Technology, Mbarara, Uganda.,Department of Pharmacy, Faculty of Medicine, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Patrick Engeu Ogwang
- Pharm-Bio Technology and Traditional Medicine Centre of Excellence, Mbarara University of Science and Technology, Mbarara, Uganda.,Department of Pharmacy, Faculty of Medicine, Mbarara University of Science and Technology, Mbarara, Uganda
| |
Collapse
|
12
|
Polyvinyl alcohol (PVA) mixed green–clay and aloe vera based polymeric membrane optimization: Peel-off mask formulation for skin care cosmeceuticals in green nanotechnology. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129592] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
13
|
Wu J, Zhang Y, Lv Z, Yu P, Shi W. Safety evaluation of Aloe vera soft capsule in acute, subacute toxicity and genotoxicity study. PLoS One 2021; 16:e0249356. [PMID: 33770149 PMCID: PMC7997006 DOI: 10.1371/journal.pone.0249356] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 03/16/2021] [Indexed: 11/27/2022] Open
Abstract
Aloe vera has been widely used in health and nutritional supplements in Chinese herbal medicine. Furthermore, Aloe vera production has been an emerging industry for making cosmetics and functional food. However, the reported adverse effects raised questions as to whether Aloe vera and its products were safe enough to be used in medicine and health care. In view of this, the safety evaluation of Aloe vera products before marketing is very important. The present study aimed to assess the toxicological profile of Aloe vera soft capsule (ASC), through acute, subacute toxicity and genotoxicity tests. Male and female ICR mice were received by oral gavage 15000 mg/kg bodyweight of ASC in the acute toxicity test. Male and female SD rats were fed on diet blended with different doses of ASC (equivalent to 832.5, 1665 and 3330 mg/kg bodyweight of ASC) for the subacute toxicity test. In the acute toxicity study, no mortality or behavioral changes were observed, indicating the LD50 was higher than 15000 mg/kg bodyweight. In the subacute toxicity test, no significant changes were observed in bodyweight, food consumption, hematological, biochemical or histopathological parameters in the rats exposed. These data suggested that ASC used in this study did not produce any marked subacute toxic effects up to a maximum concentration of 3330 mg/kg bodyweight. In the genotoxicity study, ASC showed no mutagenic activity in the Ames test and no evidence of potential to induce bone marrow micronucleus or testicular chromosome aberrations in ICR mice exposed to 10000 mg/kg bodyweight. Collectively, ASC could be considered safe before it was marketed as a laxative and moistening health food.
Collapse
Affiliation(s)
- Jun Wu
- Institute of Toxicology and Risk Assessment, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, Jiangsu, China
| | - Ying Zhang
- Institute of Toxicology and Risk Assessment, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, Jiangsu, China
| | - Zhongming Lv
- Institute of Toxicology and Risk Assessment, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, Jiangsu, China
| | - Ping Yu
- Institute of Toxicology and Risk Assessment, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, Jiangsu, China
| | - Weiqing Shi
- Institute of Toxicology and Risk Assessment, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, Jiangsu, China
| |
Collapse
|
14
|
Anuar NNM, Zulkafali NIN, Ugusman A. Modulation of Matrix Metalloproteinases by Plant-derived Products. Curr Cancer Drug Targets 2021; 21:91-106. [PMID: 33222671 DOI: 10.2174/1568009620666201120144838] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 10/07/2020] [Accepted: 10/14/2020] [Indexed: 11/22/2022]
Abstract
Matrix metalloproteinases (MMPs) are a group of zinc-dependent metalloendopeptidases that are responsible for the degradation, repair, and remodeling of extracellular matrix components. MMPs play an important role in maintaining a normal physiological function and preventing diseases, such as cancer and cardiovascular diseases. Natural products derived from plants have been used as traditional medicine for centuries. Its active compounds, such as catechin, resveratrol and quercetin, are suggested to play an important role as MMPs inhibitors, thereby opening new insights into their applications in many fields, such as pharmaceutical, cosmetic, and food industries. This review summarises the current knowledge of plant-derived natural products with MMP-modulating activities. Most of the reviewed plant-derived products exhibit an inhibitory activity on MMPs. Amongst MMPs, MMP-2 and MMP-9 are the most studied. The expression of MMPs is inhibited through respective signaling pathways, such as MAPK, NF-κB and PI3 kinase pathways, which contribute to the reduction in cancer cell behaviors, such as proliferation and migration. Most studies have employed in vitro models, but a limited number of animal studies and clinical trials have been conducted. Even though plant-derived products show promising results in modulating MMPs, more in vivo studies and clinical trials are needed to support their therapeutic applications in the future.
Collapse
Affiliation(s)
- Nur Najmi Mohamad Anuar
- Programme of Biomedical Science, Centre for Toxicology and Health Risk Studies, Faculty of Health Sciences, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif, Bandar Tun Razak, 56000, Cheras, Kuala Lumpur, Malaysia
| | - Nurul Iman Natasya Zulkafali
- Programme of Biomedical Science, Centre for Toxicology and Health Risk Studies, Faculty of Health Sciences, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif, Bandar Tun Razak, 56000, Cheras, Kuala Lumpur, Malaysia
| | - Azizah Ugusman
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif, Bandar Tun Razak, 56000, Cheras, Kuala Lumpur, Malaysia
| |
Collapse
|
15
|
Lima A, Batista-Santos P, Veríssimo E, Rebelo P, Ferreira RB. Differential inhibition of gelatinase activity in human colon adenocarcinoma cells by Aloe vera and Aloe arborescens extracts. BMC Complement Med Ther 2020; 20:379. [PMID: 33308217 PMCID: PMC7733245 DOI: 10.1186/s12906-020-03134-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 10/28/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Aloe's reported bioactivities (anticancer, anti-inflammatory and wound healing) suggest they might inhibit a subgroup of matrix metalloproteinases (MMPs) called gelatinases (MMP-2 and MMP-9). The goal of the present study was to compare the MMP inhibitory potential of two Aloe species, A. vera and A. arborescens. METHODS Different types of extraction were tested and specific bioactive compounds were quantified. Cancer cell invasion inhibitory activities were measured in vitro using the wound healing assay in human colon cancer cells (HT29). Effects on gelatinase activities were further assessed by dye-quenched gelatin and gelatin zymography. RESULTS Different types of extraction yielded significantly different levels of bioactivities and of bioactive compounds, which might be due to a greater amount of extractable bioactive compounds such as anthraquinones. Both A. arborescens and A. vera have potential as inhibitory agents in cancer cell proliferation via MMP-9 and MMP-2 enzymatic activity inhibition, being able to reduce colon cancer cell proliferation and migration but A. arborescens showed to be a more effective inhibitor of cancer cell migration than A. vera. CONCLUSION This work opens novel perspectives on the mode of action of Aloe species in cancer cell migration and may provide clues as to why there are so many conflicting results on Aloe's activities.
Collapse
Affiliation(s)
- Ana Lima
- Plants for Health and Nutrition, LEAF (Linking Landscape, Environment, Agriculture and Food), Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017, Lisbon, Portugal
| | - Paula Batista-Santos
- Plants for Health and Nutrition, LEAF (Linking Landscape, Environment, Agriculture and Food), Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017, Lisbon, Portugal.
| | - Eduarda Veríssimo
- Plants for Health and Nutrition, LEAF (Linking Landscape, Environment, Agriculture and Food), Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017, Lisbon, Portugal
| | - Patrícia Rebelo
- Plants for Health and Nutrition, LEAF (Linking Landscape, Environment, Agriculture and Food), Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017, Lisbon, Portugal
| | - Ricardo Boavida Ferreira
- Plants for Health and Nutrition, LEAF (Linking Landscape, Environment, Agriculture and Food), Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017, Lisbon, Portugal
| |
Collapse
|
16
|
Khan D, Qindeel M, Ahmed N, Khan AU, Khan S, Rehman AU. Development of novel pH-sensitive nanoparticle-based transdermal patch for management of rheumatoid arthritis. Nanomedicine (Lond) 2020; 15:603-624. [PMID: 32098563 DOI: 10.2217/nnm-2019-0385] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Aim: To formulate and evaluate a pH-responsive nanoparticle (NP)-based patch for efficient transdermal delivery of flurbiprofen against rheumatoid arthritis. Materials & methods: Nanoprecipitation technique was used for preparation of NPs and central composite design was employed for optimization purposes. Optimized NPs were loaded into the transdermal patch by the solvent evaporation method. Results: Prepared NPs exhibited an average size of 69 nm, while NPs loaded onto the transdermal patch showed sustained release and high permeation through the skin. In in vivo studies, the prepared carrier system elucidated high therapeutic potential in both acute and chronic inflammatory models as evident from the results of behavioral, radiological, histopathological and antioxidant analyses. Conclusion: The flurbiprofen-loaded pH-sensitive NP-based transdermal patch has the potential to manage rheumatoid arthritis effectively.
Collapse
Affiliation(s)
- Dildar Khan
- Department of Pharmacy, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Maimoona Qindeel
- Department of Pharmacy, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Naveed Ahmed
- Department of Pharmacy, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Ashraf U Khan
- Department of Pharmacy, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Salman Khan
- Department of Pharmacy, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Asim Ur Rehman
- Department of Pharmacy, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| |
Collapse
|
17
|
Prasannaraja C, Kamalanathan AS, Vijayalakshmi MA, Venkataraman K. A dipyrrole derivative from Aloe vera inhibits an anti-diabetic drug target Dipeptidyl Peptidase (DPP)-IV in vitro. Prep Biochem Biotechnol 2020; 50:511-520. [PMID: 31910723 DOI: 10.1080/10826068.2019.1710712] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Aloe vera, a succulent herb, has a long history of use in traditional medicine, including diabetes. Earlier studies from our laboratory demonstrated that the Aloe vera extract has the ability to inhibit the diabetic drug target dipeptidyl peptidase (DPP) IV in vitro. This current study focuses on the isolation of small water soluble active molecule(s) involved in DPP-IV inhibition from Aloe vera extract, and further to characterize its structure and to elucidate the mode of inhibition of the DPP-IV enzyme. Aloe vera gel ethanolic extract was subjected to preparative reverse-phase high-pressure liquid chromatography (RP-HPLC), LH-20 Sephadex gel filtration chromatography, followed by analytical RP-HPLC, to isolate the active molecule involved in DPP-IV inhibition. Based on the spectroscopic studies, the structure of the isolated DPP-IV inhibitor was predicted to be 3, 6-dioxo-3, 3a, 6, 6 a-tetrahydropyrrolo [3, 4-c] pyrrole-1, 4-dicarboxamide with the chemical formula C8H6N4O4, having the molecular weight of 225.175 Da. This molecule inhibited the DPP-IV enzyme in a noncompetitive manner with an IC50 value of 8.59 ± 2.61 µM, with a Ki of 4.7 ± 0.038 µM. Thus, the mechanism of DPP-IV inhibition and the inhibitory constants were determined. The results of our studies suggested that the inhibition of the DPP-IV enzyme as one of the pathways by which the Aloe vera extract may restore the pancreatic islets cell mass in diabetic animal model.
Collapse
Affiliation(s)
- C Prasannaraja
- Centre for Bio Separation Technology (CBST), VIT University, Vellore, India
| | - A S Kamalanathan
- Centre for Bio Separation Technology (CBST), VIT University, Vellore, India
| | - M A Vijayalakshmi
- Centre for Bio Separation Technology (CBST), VIT University, Vellore, India
| | | |
Collapse
|
18
|
Vinodkumar, Keshavayya J. Synthesis, structural investigations and in vitro biological evaluation of N, N-dimethyl aniline derivatives based azo dyes as potential pharmacological agents. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.03.042] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
19
|
Aghamohamadi N, Sanjani NS, Majidi RF, Nasrollahi SA. Preparation and characterization of Aloe vera acetate and electrospinning fibers as promising antibacterial properties materials. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 94:445-452. [PMID: 30423728 DOI: 10.1016/j.msec.2018.09.058] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Revised: 08/04/2018] [Accepted: 09/21/2018] [Indexed: 11/20/2022]
Abstract
In this work, the anti-bacterial effect of Aloe vera derivate fibers produced by the electrospinning method was reported. Aloe vera Polyvinylpyrrolidone (Av/PVP) and Aloe vera acetate-Polyvinylpyrrolidone (AvAc/PVP) electrospun fibers were prepared with different concentrations and their microstructure and mechanical properties were studied. Various methods such as differential scanning calorimetry (DSC), thermogravimetry analysis (TGA), water contact angle (CA) tests, Fourier-Transform Nuclear Magnetic Resonance (FT-NMR), scanning electron microscope (SEM), X-ray diffraction (XRD), CHNSO and Fourier-Transform Infrared Spectroscopy (FT-IR) were used to characterize prepared samples. (Av/PVP) electrospun fibers were prepared with different concentrations (6-10 wt%) of PVP and 0.2 wt% Av blended and tested in medicinal herb for wound healing, antibacterial and anti-inflammatory properties. For further study, the effect of AvAc film on the properties of composite film was studied. AvAc increased the thermal stability and crystallite size percentage of samples. Antibacterial and antiviral test studies on the scaffold displayed no bacterial and viral growth. These results suggest that AvAc/PVP scaffolds could be promising candidates for wound healing applications.
Collapse
Affiliation(s)
| | | | - Reza Faridi Majidi
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Iran
| | - Saman Ahmad Nasrollahi
- Center for Research & Training in Skin Diseases and Leprosy (CRTSDL), Tehran University Medical of Science, P.O. Box 1416613675, Tehran, Iran
| |
Collapse
|
20
|
Chen T, Wang L, Hu C. Treatment-related changes after short-term exposure of SD rats to Aloe vera whole-leaf freeze-dried powder. Int J Exp Pathol 2018; 98:248-259. [PMID: 29280285 DOI: 10.1111/iep.12242] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 07/26/2017] [Indexed: 02/05/2023] Open
Abstract
Aloe vera is a widely used natural herb from which many sorts of commercial products have been derived using different preparation technologies. Aloe whole-leaf powder is one of the most popular subtypes. The long-term impact of aloe products has already been reported; however, there have been few studies about short-term exposure, and especially about the relative impact of Aloe vera whole-leaf freeze-dried powder (AWFP). To provide more toxicological data and to document the early changes induced by AWFP, in this study 120 SD rats were divided into four groups (control and 400/1200/2000 mg/kg treatment groups) and were administered AWFP once daily by oral gavage for 28 consecutive days, followed by a two week recovery phase. The results showed that AWFP could induce soft/loose changes in faeces. Significantly decreased white blood cell (WBC) counts, associated with reduced lymphocyte counts were also noted. The relative organ weight, including both organ-to-body weight ratio and organ-to-brain weight ratio of kidneys, was significantly increased in 2000 mg/kg compared with that in controls. Histopathologically, pigmentation in the kidneys and increased mucosal thickness in colon were also noted in a dose response groups. Other changes observed in the study were not considered to be treatment related, and 400 mg/kg was considered as the no-observed-adverse-effect level. The study provided clear evidence of treatment-related changes with a short-term exposure to AWFP. This is also the first report of the early colon morphologic changes associated with stool changes noted previously in-life phase, providing additional toxicity data which will contribute to our understanding about the short-term usage of AWFP as a remedy.
Collapse
Affiliation(s)
- Tao Chen
- West China School of Medicine, West China Hospital, Sichuan University, Chengdu, China.,National Chengdu Center for Safety Evaluation of Drugs, Chengdu, China
| | - Li Wang
- West China School of Medicine, West China Hospital, Sichuan University, Chengdu, China.,National Chengdu Center for Safety Evaluation of Drugs, Chengdu, China
| | - Chunyan Hu
- West China School of Medicine, West China Hospital, Sichuan University, Chengdu, China.,National Chengdu Center for Safety Evaluation of Drugs, Chengdu, China
| |
Collapse
|
21
|
Leng H, Pu L, Xu L, Shi X, Ji J, Chen K. Effects of aloe polysaccharide, a polysaccharide extracted from Aloe vera, on TNF‑α‑induced HaCaT cell proliferation and the underlying mechanism in psoriasis. Mol Med Rep 2018; 18:3537-3543. [PMID: 30066937 DOI: 10.3892/mmr.2018.9319] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Accepted: 06/14/2018] [Indexed: 11/05/2022] Open
Abstract
Aloe vera is a traditional wound‑healing medicine used for the treatment of skin disorders. Aloe polysaccharide (APS) is the main macromolecule of Aloe vera, which contributes to its function. Psoriasis is an immune‑mediated chronic inflammatory disease, which affects 2‑3% of the general population. The conventional remedies used to treat psoriasis demonstrate limited effects; therefore, natural products, including Aloe vera, are being taken into consideration. However, the effects of APS on the treatment of psoriasis and the underlying mechanisms remain to be elucidated. The human keratinocyte cell line HaCaT was used to determine the effects of APS on psoriasis. Cells were randomly divided into five groups: i) Negative control group; ii) tumor necrosis factor (TNF)‑α stimulated psoriasis model group; and iii) APS (20, 40 and 80 µg/ml) pretreated psoriasis groups. Cell viability and proliferation were investigated using the CCK‑8 assay. ELISA and western blotting were applied to study the abundance of interleukin (IL)‑8 and IL‑12 in TNF‑α‑incubated culture medium and APS‑treated HaCaT cells, respectively. In addition, the mRNA expression levels of p65, and the protein expression levels of nuclear factor (NF)‑κB inhibitor‑α (IκBα) and phosphorylated‑p65, were detected by reverse transcription‑quantitative polymerase chain reaction and western blotting, respectively. APS was revealed to significantly reduce TNF‑α‑stimulated elevation of HaCaT cell proliferation in a dose‑dependent manner. The expression levels of inflammatory factors, including IL‑8 and IL‑12, were increased in response to TNF‑α. In addition, the mRNA and protein expression levels of p65 were increased following treatment with TNF‑α. Notably, treatment with APS was demonstrated to significantly attenuate the aforementioned effects in a dose‑dependent manner. Furthermore, IκBα protein expression levels were significantly reduced following treatment with TNF‑α, which was significantly reversed following treatment with APS. In conclusion, these results suggested that APS inhibited TNF‑α‑induced proliferation of keratinocytes and overactivation of the NF‑κB signaling pathway.
Collapse
Affiliation(s)
- Hong Leng
- Dermatological Department, Jiangsu Provincial Key Laboratory of Molecular Biology for Skin Disease and STIs, The Second Affiliated Hospital of Soochow University, Nanjing, Jiangsu 210042, P.R. China
| | - Li Pu
- Dermatological Department, Jiangsu Provincial Key Laboratory of Molecular Biology for Skin Disease and STIs, The Second Affiliated Hospital of Soochow University, Nanjing, Jiangsu 210042, P.R. China
| | - Longjiang Xu
- Dermatological Department, Jiangsu Provincial Key Laboratory of Molecular Biology for Skin Disease and STIs, The Second Affiliated Hospital of Soochow University, Nanjing, Jiangsu 210042, P.R. China
| | - Xin Shi
- Dermatological Department, Jiangsu Provincial Key Laboratory of Molecular Biology for Skin Disease and STIs, The Second Affiliated Hospital of Soochow University, Nanjing, Jiangsu 210042, P.R. China
| | - Jiang Ji
- Dermatological Department, Jiangsu Provincial Key Laboratory of Molecular Biology for Skin Disease and STIs, The Second Affiliated Hospital of Soochow University, Nanjing, Jiangsu 210042, P.R. China
| | - Kun Chen
- Dermatological Department, Jiangsu Provincial Key Laboratory of Molecular Biology for Skin Disease and STIs, The Second Affiliated Hospital of Soochow University, Nanjing, Jiangsu 210042, P.R. China
| |
Collapse
|
22
|
Dehdari S, Hajimehdipoor H, Esmaeili S, Choopani R, Mortazavi SA. Traditional and modern aspects of hemorrhoid treatment in Iran: a review. JOURNAL OF INTEGRATIVE MEDICINE 2018. [PMID: 29526242 DOI: 10.1016/j.joim.2018.01.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Hemorrhoidal disease is a prevalent anorectal condition which is generally not managed well with current pharmacologic interventions. However, in Iranian traditional medicine (ITM) there are numerous plants with hemorrhoid-healing properties. The present research assembled plants with hemorrhoid-healing properties in ITM; their related pharmacological effects, phytochemical constituents and mechanisms of action in the modern medicine were also gathered. For this purpose, leading ITM textbooks were searched for plants with hemorrhoid-healing effects. Further, in vitro, in vivo and clinical studies on the most cited species were considered using scientific databases. Studying ITM textbooks revealed 37 medicinal plants with hemorrhoid-healing effects. Among the mentioned herbal medicines, six species, including Allium ampeloprasum, Phyllanthus emblica, Aloe vera, Terminalia chebula, Vitis vinifera and Commiphora mukul, had the largest number of related pharmacological effects documented in scientific databases. These herbs from ITM should be considered as important resources for producing novel drugs for hemorrhoid treatment.
Collapse
Affiliation(s)
- Sahar Dehdari
- Student Research Committee, Department of Traditional Pharmacy, School of Traditional Medicine, Shahid Beheshti University of Medical Sciences, Tehran 1516745811, Iran
| | - Homa Hajimehdipoor
- Traditional Medicine and Materia Medica Research Center and Department of Traditional Pharmacy, School of Traditional Medicine, Shahid Beheshti University of Medical Sciences, Tehran 1516745811, Iran
| | - Somayeh Esmaeili
- Traditional Medicine and Materia Medica Research Center and Department of Traditional Pharmacy, School of Traditional Medicine, Shahid Beheshti University of Medical Sciences, Tehran 1516745811, Iran.
| | - Rasool Choopani
- Department of Traditional Medicine, School of Traditional Medicine, Shahid Beheshti University of Medical Sciences, Tehran 1516745811, Iran
| | - Seyed Alireza Mortazavi
- Department of Pharmaceutics, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran 1991953381, Iran
| |
Collapse
|
23
|
Mandal P, Khan MI, Shah S. Drugs - Do we need them? Applications of non-pharmaceutical therapy in anterior eye disease: A review. Cont Lens Anterior Eye 2017; 40:360-366. [PMID: 28919243 DOI: 10.1016/j.clae.2017.09.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 08/12/2017] [Accepted: 09/06/2017] [Indexed: 01/16/2023]
Abstract
Natural products have been in use long before the introduction of modern drug therapies and are still used in various communities worldwide for the treatment of anterior eye disease. The aim of this review is to look at the current non-pharmaceutical modalities that have been tried and assess the body of existing evidence behind them. This includes alternative medicine, existing non-pharmaceutical therapy and more recent low and high tech solutions. A detailed search of all available databases including MEDLINE, Pubmed and Google was made to look for English-language studies for complementary and alternative treatment modalities (CAM), natural therapies and new modalities for anterior eye disease such as blepharitis, dry eye and microbial keratitis. We have included a broad discussion ranging from traditional treatments like honey and aloe vera which have been used for centuries, to the more recent technological advances like Intense Pulsed Light (IPL), LipiFlow and photoactivated chromophore for corneal cross linking in infectious keratitis (PACK-CXL). Alternative management strategies may have a role in anterior eye diseases and have a potential in changing the way we currently approach them. Some of the available CAM could play a role if incorporated in to current management practices of not only chronic diseases like blepharitis and dry eye, but also acute conditions with significant morbidity like microbial keratitis. Further large-scale randomized control trials stratified by disease severity are required to improve our understanding and to evaluate the use of non-pharmaceutical therapy against current practice.
Collapse
Affiliation(s)
- Priyanka Mandal
- Birmingham and Midland Eye Centre, Sandwell and West Birmingham Hospitals NHS Trust, City Hospital, Dudley Road, Birmingham, B18 7QH, UK.
| | | | - Sunil Shah
- Birmingham and Midland Eye Centre, Sandwell and West Birmingham Hospitals NHS Trust, City Hospital, Dudley Road, Birmingham, B18 7QH, UK; School of Life and Health Sciences, Aston University, Birmingham, B4 7ET, UK.
| |
Collapse
|
24
|
Rippon M, Perrin A, Darwood R, Ousey K. The potential benefits of using aloe vera in stoma patient skin care. ACTA ACUST UNITED AC 2017; 26:S12-S19. [PMID: 28328276 DOI: 10.12968/bjon.2017.26.5.s12] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Individuals living with an ostomy may suffer from a variety of peri-stomal skin complications related to the use of their stoma appliance or accessories. These conditions can be serious enough to significantly impact on a patient's quality of life and may result in severe clinical complications (such as infection). This article is a review of the literature with the objective of investigating and presenting evidence for the well-documented use of aloe vera in the prevention of skin conditions similar to those seen in peri-stomal skin complications. An exploration for the potential use of aloe vera directly or indirectly (as an adjunct to medical devices such as wafers) in stoma patients is presented with the view that this use may be beneficial in the prevention of such peri-stomal skin complications.
Collapse
Affiliation(s)
- Mark Rippon
- Visiting Clinical Research Fellow, School of Human and Health Sciences, University of Huddersfield
| | - Angie Perrin
- Clinical Lead, Research & Development, Salts Healthcare Ltd, Aston, Birmingham B7 4AA
| | | | - Karen Ousey
- Professor and Director for the Institute of Skin Integrity and Infection Prevention, School of Human and Health Sciences, University of Huddersfield
| |
Collapse
|
25
|
Sui Chin S, Han Lyn F, Nur Hanani Z. Effect of Aloe vera ( Aloe barbadensis Miller) gel on the physical and functional properties of fish gelatin films as active packaging. Food Packag Shelf Life 2017. [DOI: 10.1016/j.fpsl.2017.04.008] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
26
|
Hosseinkhani A, Falahatzadeh M, Raoofi E, Zarshenas MM. An Evidence-Based Review on Wound Healing Herbal Remedies From Reports of Traditional Persian Medicine. J Evid Based Complementary Altern Med 2017; 22:334-343. [PMID: 27330012 PMCID: PMC5871189 DOI: 10.1177/2156587216654773] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 05/06/2016] [Accepted: 05/19/2016] [Indexed: 12/22/2022] Open
Abstract
Research on wound healing agents is a developing area in biomedical sciences. Traditional Persian medicine is one of holistic systems of medicine providing valuable information on natural remedies. To collect the evidences for wound-healing medicaments from traditional Persian medicine sources, 5 main pharmaceutical manuscripts in addition to related contemporary reports from Scopus, PubMed, and ScienceDirect were studied. The underlying mechanisms were also saved and discussed. Totally, 65 herbs used in traditional Persian medicine for their wound healing properties was identified. Related anti-inflammatory, antioxidant, antimicrobial, and wound-healing activities of those remedies were studied. Forty remedies had at least one of those properties and 10 of the filtered plants possessed all effects. The medicinal plants used in wound healing treatment in traditional Persian medicine could be a good topic for further in vivo and clinical research. This might lead to development of effective products for wound treatment.
Collapse
Affiliation(s)
- Ayda Hosseinkhani
- Research center for traditional medicine and history of medicine, Shiraz University of medical sciences, Shiraz, Iran
| | - Maryam Falahatzadeh
- Department of Phytopharmaceuticals (Traditional Pharmacy), School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Elahe Raoofi
- Department of Phytopharmaceuticals (Traditional Pharmacy), School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad M. Zarshenas
- Department of Phytopharmaceuticals (Traditional Pharmacy), School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
- Medicinal Plants Processing Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| |
Collapse
|
27
|
The effect of aloe vera on the expression of wound healing factors (TGFβ1 and bFGF) in mouse embryonic fibroblast cell: In vitro study. Biomed Pharmacother 2017; 88:610-616. [DOI: 10.1016/j.biopha.2017.01.095] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2016] [Revised: 01/11/2017] [Accepted: 01/16/2017] [Indexed: 11/19/2022] Open
|
28
|
Rahman S, Carter P, Bhattarai N. Aloe Vera for Tissue Engineering Applications. J Funct Biomater 2017; 8:E6. [PMID: 28216559 PMCID: PMC5371879 DOI: 10.3390/jfb8010006] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 02/05/2017] [Accepted: 02/07/2017] [Indexed: 01/15/2023] Open
Abstract
Aloe vera, also referred as Aloe barbadensis Miller, is a succulent plant widely used for biomedical, pharmaceutical and cosmetic applications. Aloe vera has been used for thousands of years. However, recent significant advances have been made in the development of aloe vera for tissue engineering applications. Aloe vera has received considerable attention in tissue engineering due to its biodegradability, biocompatibility, and low toxicity properties. Aloe vera has been reported to have many biologically active components. The bioactive components of aloe vera have effective antibacterial, anti-inflammatory, antioxidant, and immune-modulatory effects that promote both tissue regeneration and growth. The aloe vera plant, its bioactive components, extraction and processing, and tissue engineering prospects are reviewed in this article. The use of aloe vera as tissue engineering scaffolds, gels, and films is discussed, with a special focus on electrospun nanofibers.
Collapse
Affiliation(s)
- Shekh Rahman
- Department of Chemical, Biological and Bioengineering, North Carolina A&T State University, Greensboro, NC 27411, USA.
| | - Princeton Carter
- Department of Chemical, Biological and Bioengineering, North Carolina A&T State University, Greensboro, NC 27411, USA.
| | - Narayan Bhattarai
- Department of Chemical, Biological and Bioengineering, North Carolina A&T State University, Greensboro, NC 27411, USA.
| |
Collapse
|
29
|
Galehdari H, Negahdari S, Kesmati M, Rezaie A, Shariati G. Effect of the herbal mixture composed of Aloe Vera, Henna, Adiantum capillus-veneris, and Myrrha on wound healing in streptozotocin-induced diabetic rats. Altern Ther Health Med 2016; 16:386. [PMID: 27716154 PMCID: PMC5053342 DOI: 10.1186/s12906-016-1359-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2016] [Accepted: 09/09/2016] [Indexed: 02/08/2023]
Abstract
BACKGROUND Wound healing is often impaired in diabetic animals and humans. Matrix metalloproteases act as pro-inflammatory agents in physiological wound healing pathways by stimulating cytokines including the interleukins, IL6, IL1A and IL1B, and the tumor necrosis factor and transforming growth factor beta1. Botanicals are traditionally used to assist healing of different types of wounds, because they produce fewer side effects. Our specific aim here was to develop a plant-based recipe supporting effective wound healing in diabetic animals. METHODS Plant materials from Adiantum capillus-veneris, Commiphora molmol, Aloe Vera, and henna were collected for this study, and oven-dried at 60 °C. The dried leaves and resins were then crumbled into a powder and mixed in equal parts with Vaseline as a preservative. This mixture was used as an ointment on wounds induced in 60 diabetic and non-diabetic rats that were divided into 6 subgroups receiving agent or control treatments. Necrotic tissue surrounding the wound was periodically removed during wound healing. RNA was extracted from the healing region of the wound at days 7, 14 and 21 for cDNA synthesis to monitor changes in Tgfb1, Mmp3, Mmp9, Il6 and Tnf α expression using real-time PCR. RESULTS The expression of the Mmp3, the Tnf α, and the Tgfb1 genes from wound tissue were significantly different (p < 0.05) between diabetic and non-diabetic (control) rats treated with the herbal mixture after 14 and 21 days. There was no significant difference (p > 0.05) of the Mmp9 gene expression in diabetic and non-diabetic rats treated only with Vaseline after 7, 14, and 21 days. But, the expression of the Mmp9 gene decreased significantly (p < 0.05) in diabetic rats after 14 days in comparison to non-diabetic rats, when the herbal mixture was added to Vaseline. CONCLUSIONS Our study presents an herbal treatment that alters the gene expression signature at wounds induced in the rat model for type I diabetes in a manner consistent with accelerated healing, and demonstrates that this herbal treatment might be effective to treat wounds in diabetic patients.
Collapse
|
30
|
K.S J, Sharma CP, Kalarikkal N, Sandeep. K, Thomas S, Pothen LA. Evaluation of in-vitro cytotoxicity and cellular uptake efficiency of zidovudine-loaded solid lipid nanoparticles modified with Aloe Vera in glioma cells. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 66:40-50. [DOI: 10.1016/j.msec.2016.03.031] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 02/02/2016] [Accepted: 03/10/2016] [Indexed: 12/12/2022]
|
31
|
Expression of MMP and TIMP mRNA in Peripheral Blood Leukocytes of Patients with Invasive Ductal Carcinoma of the Breast. Int J Biol Markers 2016; 31:e309-16. [DOI: 10.5301/jbm.5000203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/08/2016] [Indexed: 11/20/2022]
Abstract
Purpose An imbalance between matrix metalloproteinases (MMPs) and tissue inhibitors of MMPs (TIMPs) appears critical for tumor progression and metastasis. This study aimed to determine whether gene expression of MMP1, MMP2, MMP9, TIMP1 and TIMP3 and the MMP/TIMP expression ratio in peripheral blood leukocytes (PBLs) and the MMP1 and TIMP1 contents or MMP1/TIMP1 ratio in plasma were associated with clinicopathological characteristics in invasive ductal carcinoma (IDC) of the breast. Materials and methods Blood samples were collected from women newly diagnosed with IDC who had not received prior treatment (n = 102). Gene expression in PBLs was analyzed by quantitative real-time polymerase chain reaction. Concentrations of MMP1 and TIMP1 in plasma were measured using ELISA. Results In univariate analysis the expression levels of MMP2 and TIMP1 mRNA were significantly higher in premenopausal compared to postmenopausal patients (p<0.001 and p = 0.014, respectively). MMP2 mRNA expression negatively correlated with age (p<0.001, r = -0.43). We found that the MMP2/TIMP3 expression ratio was significantly higher in women after menopause (p = 0.007). The MMP2/TIMP1 expression ratio was higher in human epidermal growth factor receptor 2 (HER2)-positive patients (p = 0.022). Low-grade tumors had significantly lower MMP1/TIMP1 and MMP2/TIMP1 expression ratios (p = 0.047 and p = 0.048, respectively). TIMP1 plasma concentration was significantly higher in small tumors compared with T2-T3 tumors (p = 0.013). Conclusions These findings reveal an important association between tumor characteristics and expression ratios of MMP1/TIMP1 and MMP2/TIMP1 in PBLs and TIMP1 concentration in plasma. Menopausal status may influence the mRNA expression levels of MMP2 and TIMP1 as well as the MMP2/TIMP3 expression ratio in IDC of the breast.
Collapse
|
32
|
Topical Application of Aloe vera Accelerated Wound Healing, Modeling, and Remodeling. Ann Plast Surg 2016; 77:37-46. [DOI: 10.1097/sap.0000000000000239] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
33
|
Pereira RF, Bártolo PJ. Traditional Therapies for Skin Wound Healing. Adv Wound Care (New Rochelle) 2016; 5:208-229. [PMID: 27134765 DOI: 10.1089/wound.2013.0506] [Citation(s) in RCA: 247] [Impact Index Per Article: 30.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Significance: The regeneration of healthy and functional skin remains a huge challenge due to its multilayer structure and the presence of different cell types within the extracellular matrix in an organized way. Despite recent advances in wound care products, traditional therapies based on natural origin compounds, such as plant extracts, honey, and larvae, are interesting alternatives. These therapies offer new possibilities for the treatment of skin diseases, enhancing the access to the healthcare, and allowing overcoming some limitations associated to the modern products and therapies, such as the high costs, the long manufacturing times, and the increase in the bacterial resistance. This article gives a general overview about the recent advances in traditional therapies for skin wound healing, focusing on the therapeutic activity, action mechanisms, and clinical trials of the most commonly used natural compounds. New insights in the combination of traditional products with modern treatments and future challenges in the field are also highlighted. Recent Advances: Natural compounds have been used in skin wound care for many years due to their therapeutic activities, including anti-inflammatory, antimicrobial, and cell-stimulating properties. The clinical efficacy of these compounds has been investigated through in vitro and in vivo trials using both animal models and humans. Besides the important progress regarding the development of novel extraction methods, purification procedures, quality control assessment, and treatment protocols, the exact mechanisms of action, side effects, and safety of these compounds need further research. Critical Issues: The repair of skin lesions is one of the most complex biological processes in humans, occurring throughout an orchestrated cascade of overlapping biochemical and cellular events. To stimulate the regeneration process and prevent the wound to fail the healing, traditional therapies and natural products have been used with promising results. Although these products are in general less expensive than the modern treatments, they can be sensitive to the geographic location and season, and exhibit batch-to-batch variation, which can lead to unexpected allergic reactions, side effects, and contradictory clinical results. Future Directions: The scientific evidence for the use of traditional therapies in wound healing indicates beneficial effects in the treatment of different lesions. However, specific challenges remain unsolved. To extend the efficacy and the usage of natural substances in wound care, multidisciplinary efforts are necessary to prove the safety of these products, investigate their side effects, and develop standard controlled trials. The development of good manufacturing practices and regulatory legislation also assume a pivotal role in order to improve the use of traditional therapies by the clinicians and to promote their integration into the national health system. Current trends move to the development of innovative wound care treatments, combining the use of traditional healing agents and modern products/practices, such as nanofibers containing silver nanoparticles, Aloe vera loaded into alginate hydrogels, propolis into dressing films, and hydrogel sheets containing honey.
Collapse
Affiliation(s)
- Rúben F. Pereira
- Centre for Rapid and Sustainable Product Development (CDRsp), Polytechnic Institute of Leiria, Marinha Grande, Portugal
- INEB-Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Paulo J. Bártolo
- Centre for Rapid and Sustainable Product Development (CDRsp), Polytechnic Institute of Leiria, Marinha Grande, Portugal
| |
Collapse
|
34
|
Ahluwalia B, Magnusson MK, Isaksson S, Larsson F, Öhman L. Effects of Aloe barbadensis Mill. extract (AVH200®) on human blood T cell activity in vitro. JOURNAL OF ETHNOPHARMACOLOGY 2016; 179:301-309. [PMID: 26771068 DOI: 10.1016/j.jep.2016.01.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Revised: 12/21/2015] [Accepted: 01/02/2016] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Aloe barbadensis Mill. (Aloe vera) is a widely used medicinal plant well reputed for its diverse therapeutic applications. It has been used for thousands of years in folk medicine to treat various conditions and the Aloe vera gel has been reported to possess anti-inflammatory as well as immunostimulatory and immunomodulatory properties. However, the mode of action is still unclear. AIM OF THE STUDY The aim of this study was determine the effects of two well-defined A. barbadensis Mill. extracts AVH200® and AVE200 on human blood T cells in vitro. MATERIALS AND METHODS Peripheral blood mononuclear cells (PBMC) from healthy donors were stimulated polyclonally in the presence or absence of AVH200® and AVE200. The T cell phenotype was investigated by flow cytometry, cell proliferation was determined by CFSE dye and thymidine assay, respectively and cytokine secretion was determined by MSD® Multi-Spot Assay system and ELISA. RESULTS The presence of AVH200® resulted in a reduced expression of CD25 among CD3(+) T cells and suppression of T cell proliferation in a dose dependent manner. Furthermore, AVH200® reduced the expression of CD28 on CD3(+) T cells. AVH200® also reduced the secretion of IL-2, IFN-γ and IL-17A in PBMC cultures. The AVH200® dose dependent reduction in T cell activation and proliferation recorded in the cell cultures was not due to apoptosis or cell death. Additionally, AVH200® was found to be more effective as compared to AVE200 in reducing T cell activation and proliferation. CONCLUSION AVH200® has the potential to reduce the activation, proliferation and cytokine secretion of healthy human blood T cells. Our study suggests that AVH200® has a suppressive effect on human blood T cells in vitro.
Collapse
Affiliation(s)
- Bani Ahluwalia
- Department of Microbiology and Immunology, Sahlgrenska Academy at University of Gothenburg, Box 435, 405 30 Gothenburg, Sweden; Calmino Group AB, Sahlgrenska Science Park, Medicinaregatan 8A, 413 46 Gothenburg, Sweden.
| | - Maria K Magnusson
- Department of Microbiology and Immunology, Sahlgrenska Academy at University of Gothenburg, Box 435, 405 30 Gothenburg, Sweden; Department of Internal Medicine and Clinical Nutrition, Sahlgrenska Academy at University of Gothenburg, 413 45 Gothenburg, Sweden.
| | - Stefan Isaksson
- Department of Microbiology and Immunology, Sahlgrenska Academy at University of Gothenburg, Box 435, 405 30 Gothenburg, Sweden; Department of Internal Medicine and Clinical Nutrition, Sahlgrenska Academy at University of Gothenburg, 413 45 Gothenburg, Sweden.
| | - Fredrik Larsson
- Department of Internal Medicine and Clinical Nutrition, Sahlgrenska Academy at University of Gothenburg, 413 45 Gothenburg, Sweden.
| | - Lena Öhman
- Department of Microbiology and Immunology, Sahlgrenska Academy at University of Gothenburg, Box 435, 405 30 Gothenburg, Sweden; Department of Internal Medicine and Clinical Nutrition, Sahlgrenska Academy at University of Gothenburg, 413 45 Gothenburg, Sweden.
| |
Collapse
|
35
|
Crude Aloe vera Gel Shows Antioxidant Propensities and Inhibits Pancreatic Lipase and Glucose Movement In Vitro. Adv Pharmacol Sci 2016; 2016:3720850. [PMID: 26880905 PMCID: PMC4736367 DOI: 10.1155/2016/3720850] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 11/10/2015] [Accepted: 12/09/2015] [Indexed: 12/04/2022] Open
Abstract
Aloe vera gel (AVG) is traditionally used in the management of diabetes, obesity, and infectious diseases. The present study aimed to investigate the inhibitory potential of AVG against α-amylase, α-glucosidase, and pancreatic lipase activity in vitro. Enzyme kinetic studies using Michaelis-Menten (Km) and Lineweaver-Burk equations were used to establish the type of inhibition. The antioxidant capacity of AVG was evaluated for its ferric reducing power, 2-diphenyl-2-picrylhydrazyl hydrate scavenging ability, nitric oxide scavenging power, and xanthine oxidase inhibitory activity. The glucose entrapment ability, antimicrobial activity, and total phenolic, flavonoid, tannin, and anthocyanin content were also determined. AVG showed a significantly higher percentage inhibition (85.56 ± 0.91) of pancreatic lipase compared to Orlistat. AVG was found to increase the Michaelis-Menten constant and decreased the maximal velocity (Vmax) of lipase, indicating mixed inhibition. AVG considerably inhibits glucose movement across dialysis tubes and was comparable to Arabic gum. AVG was ineffective against the tested microorganisms. Total phenolic and flavonoid contents were 66.06 ± 1.14 (GAE)/mg and 60.95 ± 0.97 (RE)/mg, respectively. AVG also showed interesting antioxidant properties. The biological activity observed in this study tends to validate some of the traditional claims of AVG as a functional food.
Collapse
|
36
|
Huo X, Zhang L, Gao L, Guo Y, Zhang L, Li L, Si J, Cao L. Antiinflammatory and Analgesic Activities of Ethanol Extract and Isolated Compounds from Millettia pulchra. Biol Pharm Bull 2015; 38:1328-36. [PMID: 26062514 DOI: 10.1248/bpb.b15-00187] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The plant Millettia pulchra was commonly used in folk medicine for the management of inflammation. However, there was no scientific rationale for these effects and the mechanism of action remained incompletely understood. The present study was designed to investigate the antiinflammatory and analgesic activities of an ethanol extract of the stem of M. pulchra (EMP) in vivo, and to explore the antiinflammatory activity of compounds isolated from EMP in vitro. We found that EMP reduced xylene-induced ear edema and relieved both acetic acid-induced pain and pain in the hot plate test. Additionally, a significant decrease in nitric oxide (NO) production was observed in cells treated with the isolated compounds. Lanceolatin B, which showed the greatest inhibition of NO synthesis among the compounds tested, also reduced levels of interleukin-1 beta (IL-1β), IL-6, tumor necrosis factor-alpha (TNF-α), cyclooxygenase-2 (COX-2), inducible nitric oxide synthase (iNOS), nuclear factor-kappa B (NF-κB), and phosphorylation inhibitory kappa B alpha (p-IκBα) in a dose-dependent manner. These findings provide convincing evidence that EMP and the individual isolated compounds possess significant antiinflammatory and analgesic activities.
Collapse
Affiliation(s)
- Xiaowei Huo
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College
| | | | | | | | | | | | | | | |
Collapse
|
37
|
Antimetastatic and anti-inflammatory potentials of essential oil from edible Ocimum sanctum leaves. ScientificWorldJournal 2014; 2014:239508. [PMID: 25431779 PMCID: PMC4238170 DOI: 10.1155/2014/239508] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 09/24/2014] [Accepted: 10/02/2014] [Indexed: 12/11/2022] Open
Abstract
Antimetastatic and anti-inflammatory activities of Ocimum sanctum essential oil (OSEO) have been assessed in this study. OSEO at the concentration of 250 μg/mL and above showed a significant (*P < 0.05) decrease in the number of migrated cancer cells. In addition, OSEO at concentration of 250 μg/mL and above suppressed MMP-9 activity in lipopolysaccharide (LPS) induced inflammatory cells. A dose-dependent downregulation of MMP-9 expression was observed with the treatment of OSEO compared to the control. Our findings indicate that OSEO has both antimetastatic and anti-inflammatory potentials, advocating further investigation for clinical applications in the treatment of inflammation associated cancer.
Collapse
|
38
|
Farzaei MH, Farzaei F, Gooshe M, Abbasabadi Z, Rezaei N, Abdolghaffari AH. Potentially effective natural drugs in treatment for the most common rheumatic disorder: osteoarthritis. Rheumatol Int 2014; 35:799-814. [DOI: 10.1007/s00296-014-3175-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2014] [Accepted: 11/05/2014] [Indexed: 01/15/2023]
|
39
|
Oral administration of Aloe vera gel, anti-microbial and anti-inflammatory herbal remedy, stimulates cell-mediated immunity and antibody production in a mouse model. Cent Eur J Immunol 2014; 39:125-30. [PMID: 26155113 PMCID: PMC4440021 DOI: 10.5114/ceji.2014.43711] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Accepted: 05/07/2014] [Indexed: 11/23/2022] Open
Abstract
Introduction Aloe vera (L.) Burm. f. (Aloe barbadensis Mill) Liliaceae, succulent plant native to northern Africa, is presently cultivated in many regions of the world. Traditionally, its inner part of parenchyma, which contains aloe gel, was used for the treatment of minor wounds, inflammatory skin disorders, thermal and radiation burns and to alleviate chronic osteoarthritis pain. It also possesses some antimicrobial activity. Now, aloe gel is also increasingly consumed as a dietary supplement. Some data suggest its immunomodulatory properties. The aim of the study The aim of the study was to evaluate the influence of orally administered aloe gel on some parameters of cellular and humoral immunity viz. mitogen-induced proliferation of splenic lymphocytes and their chemokinetic activity, and anti-sheep red blood cells (SRBC) antibody production in Balb/c mice. Results Daily treatment of mice for 14 and 21 days with 50 µl or 150 µl of aloe gel dose resulted in enhanced chemokinetic activity and stronger response of their splenic lymphocytes to mitogen PHA and enhancement of anti-SRBC antibody production.
Collapse
|
40
|
Feeding mice with Aloe vera gel diminishes L-1 sarcoma-induced early neovascular response and tumor growth. Cent Eur J Immunol 2014; 39:14-8. [PMID: 26155093 PMCID: PMC4439990 DOI: 10.5114/ceji.2014.42116] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2014] [Accepted: 02/04/2014] [Indexed: 12/11/2022] Open
Abstract
Aloe vera (Aloe arborescens, aloe barbadensis) is a medicinal plant belonging to the Liliaceae family. Aloe vera gel prepared from the inner part of Aloe leaves is increasingly consumed as a beverage dietary supplement. Some data suggest its tumor growth modulatory properties. The aim of the present study was to evaluate in Balb/c mice the in vivo influence of orally administered Aloe vera drinking gel on the syngeneic L-1 sarcoma tumor growth and its vascularization: early cutaneous neovascular response, tumor-induced angiogenesis (TIA test read after 3 days), and tumor hemoglobin content measured 14 days after L-1 sarcoma cell grafting. Feeding mice for 3 days after tumor cell grafting with 150 μl daily dose of Aloe vera gel significantly diminished the number of newly-formed blood vessels in comparison to the controls. The difference between the groups of control and Aloe-fed mice (150 μl daily dose for 14 days) with respect to the 14 days' tumor volume was on the border of statistical significance. No difference was observed in tumor hemoglobin content.
Collapse
|
41
|
Curto EM, Labelle A, Chandler HL. Aloe vera: an in vitro study of effects on corneal wound closure and collagenase activity. Vet Ophthalmol 2014; 17:403-10. [PMID: 24666433 DOI: 10.1111/vop.12163] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
PURPOSE To evaluate the in vitro effects of an aloe vera solution on (i) the viability and wound healing response of corneal cells and (ii) the ability to alter collagenase and gelatinase activities. METHODS Primary cultures of corneal epithelial cells and fibroblasts were prepared from grossly normal enucleated canine globes and treated with an aloe solution (doses ranging from 0.0-2 mg/mL). Cellular viability was evaluated using a colorimetric assay. A corneal wound healing model was used to quantify cellular ingrowth across a defect made on the confluent surface. Anticollagenase and antigelatinase activities were evaluated by incubating a bacterial collagenase/gelatinase with aloe solution (doses ranging from 0.0-500 μg/mL) and comparing outcome measures to a general metalloproteinase inhibitor, 1, 10-phenanthroline, and canine serum (doses ranging from 0.0-100%). RESULTS None of the concentrations of aloe solution tested significantly affected the viability of corneal epithelial cells or fibroblasts. Concentrations ≤175 μg/mL slightly accelerated corneal epithelial cell wound closure; this change was not significant. Concentrations ≥175 μg/mL significantly (P ≤ 0.001) slowed the rate of corneal fibroblast wound closure, while aloe concentrations <175 μg/mL did not significantly alter fibroblast wound closure. Aloe solution did not alter the ability for collagenase to degrade gelatin or collagen Type I but increased the ability for collagenase to degrade Type IV collagen. CONCLUSIONS Although additional experiments are required, lower concentrations of aloe solution may be beneficial in healing of superficial corneal wounds to help decrease fibrosis and speed epithelialization. An increase in collagenase activity with aloe vera warrants further testing before considering in vivo studies.
Collapse
|
42
|
Budai MM, Varga A, Milesz S, Tőzsér J, Benkő S. Aloe vera downregulates LPS-induced inflammatory cytokine production and expression of NLRP3 inflammasome in human macrophages. Mol Immunol 2013; 56:471-9. [DOI: 10.1016/j.molimm.2013.05.005] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Revised: 04/11/2013] [Accepted: 05/14/2013] [Indexed: 02/07/2023]
|
43
|
Jithendra P, Rajam AM, Kalaivani T, Mandal AB, Rose C. Preparation and characterization of aloe vera blended collagen-chitosan composite scaffold for tissue engineering applications. ACS APPLIED MATERIALS & INTERFACES 2013; 5:7291-7298. [PMID: 23838342 DOI: 10.1021/am401637c] [Citation(s) in RCA: 148] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Collagen-Chitosan (COL-CS) scaffolds supplemented with different concentrations (0.1-0.5%) of aloe vera (AV) were prepared and tested in vitro for their possible application in tissue engineering. After studying the microstructure and mechanical properties of all the composite preparations, a 0.2% AV blended COL-CS scaffold was chosen for further studies. Scaffolds were examined by Fourier transform infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC), and thermogravimetry analysis (TGA) to understand the intermolecular interactions and their influence on the thermal property of the complex composite. Swelling property in phosphate buffered saline (pH 7.4) and in vitro biodegradability by collagenase digestion method were monitored to assess the stability of the scaffold in a physiological medium in a hydrated condition, and to assay its resistance against enzymatic forces. The scanning electron microscope (SEM) image of the scaffold samples showed porous architecture with gradual change in their morphology and reduced tensile properties with increasing aloe vera concentration. The FTIR spectrum revealed the overlap of the AV absorption peak with the absorption peak of COL-CS. The inclusion of AV to COL-CS increased the thermal stability as well as hydrophilicity of the scaffolds. Cell culture studies on the scaffold showed enhanced growth and proliferation of fibroblasts (3T3L1) without exhibiting any toxicity. Also, normal cell morphology and proliferation were observed by fluorescence microscopy and SEM. The rate of cell growth in the presence/absence of aloe vera in the scaffolds was in the order: COL-CS-AV > COL-CS > TCP (tissue culture polystyrene plate). These results suggested that the aloe vera gel-blended COL-CS scaffolds could be a promising candidate for tissue engineering applications.
Collapse
|
44
|
Sericins exhibit ROS-scavenging, anti-tyrosinase, anti-elastase, and in vitro immunomodulatory activities. Int J Biol Macromol 2013; 58:47-56. [PMID: 23541552 DOI: 10.1016/j.ijbiomac.2013.03.054] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 03/18/2013] [Accepted: 03/20/2013] [Indexed: 11/22/2022]
Abstract
Some biological properties of Bombyx mori sericins from twenty strains were investigated, fourteen fed with artificial diet, two with fresh mulberry leaves and four with both diets. Sericin exhibited ROS-scavenging, anti-tyrosinase and anti-elastase properties, the strain significantly influenced these properties, while diet only influenced the anti-tyrosinase activity. Sericins were clustered into 5 groups and one sericin from each group was further studied: sericins showed anti-proliferative activity on in vitro stimulated peripheral blood mononuclear cells; some strains decreased in vitro secretion of IFNγ, while no effects were observed on TNFα and IL10 release. Therefore, a mixture of sericins extracted from the most promising strains may be useful for dermatological and cosmetic use.
Collapse
|
45
|
Beringhs AO, Rosa JM, Stulzer HK, Budal RM, Sonaglio D. Green clay and aloe vera peel-off facial masks: response surface methodology applied to the formulation design. AAPS PharmSciTech 2013; 14:445-55. [PMID: 23381175 DOI: 10.1208/s12249-013-9930-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2012] [Accepted: 01/22/2013] [Indexed: 11/30/2022] Open
Abstract
This article describes the optimization of a peel-off facial mask formulation. An investigation was carried out on the parameters of the formulation that most affect the desirable characteristics of peel-off facial masks. Cereal alcohol had a significant effect on the drying time at concentrations of 1-12% (w/w). The applicability of the evaluated formulations was influenced by both carbomer (0-2.4%; w/w) and polyvinyl alcohol (PVA; 2.5-17.5%; w/w) content due to their ability to alter the formulation viscosity. Inverse concentrations of carbomer and PVA led to formulations with optimum viscosity for facial application. Film-forming performance was influenced only by the PVA concentration, achieving maximum levels at concentrations of around 11% (w/w). The optimized formulation, determined mathematically, contained 13% (w/w) PVA and 10% (w/w) cereal alcohol with no addition of carbomer. This formulation provided high levels of applicability and film-forming performance, the lowest drying time possible and excellent homogeneity of the green clay particles and aloe vera before and after drying. The preliminary stability study indicated that the optimized formulation is stable under normal storage conditions. The microbiological stability evaluation indicated that the preservative was efficient in terms of avoiding microbial growth. RSM was shown to be a useful statistical tool for the determination of the behavior of different compounds and their concentrations for the responses studied, allowing the investigation of the optimum conditions for the production of green clay and aloe vera peel-off facial masks.
Collapse
|
46
|
Structural and biochemical alterations during the healing process of tendons treated with Aloe vera. Life Sci 2012; 91:885-93. [DOI: 10.1016/j.lfs.2012.09.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2012] [Revised: 08/11/2012] [Accepted: 09/04/2012] [Indexed: 11/22/2022]
|