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Gościniak A, Stasiłowicz-Krzemień A, Michniak-Kohn B, Fiedor P, Cielecka-Piontek J. One Molecule, Many Faces: Repositioning Cardiovascular Agents for Advanced Wound Healing. Molecules 2024; 29:2938. [PMID: 38931002 PMCID: PMC11206936 DOI: 10.3390/molecules29122938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 06/17/2024] [Accepted: 06/19/2024] [Indexed: 06/28/2024] Open
Abstract
Chronic wound treatments pose a challenge for healthcare worldwide, particularly for the people in developed countries. Chronic wounds significantly impair quality of life, especially among the elderly. Current research is devoted to novel approaches to wound care by repositioning cardiovascular agents for topical wound treatment. The emerging field of medicinal products' repurposing, which involves redirecting existing pharmaceuticals to new therapeutic uses, is a promising strategy. Recent studies suggest that medicinal products such as sartans, beta-blockers, and statins have unexplored potential, exhibiting multifaceted pharmacological properties that extend beyond their primary indications. The purpose of this review is to analyze the current state of knowledge on the repositioning of cardiovascular agents' use and their molecular mechanisms in the context of wound healing.
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Affiliation(s)
- Anna Gościniak
- Department of Pharmacognosy and Biomaterials, Poznan University of Medical Sciences, Rokietnicka 3 Str., 60-806 Poznań, Poland; (A.G.); (A.S.-K.)
| | - Anna Stasiłowicz-Krzemień
- Department of Pharmacognosy and Biomaterials, Poznan University of Medical Sciences, Rokietnicka 3 Str., 60-806 Poznań, Poland; (A.G.); (A.S.-K.)
| | - Bożena Michniak-Kohn
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers-The State University of New Jersey, Piscataway, NJ 08854, USA;
- Center for Dermal Research, Rutgers-The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Piotr Fiedor
- Department of General and Transplantation Surgery, Medical University of Warsaw, 02-008 Warsaw, Poland;
| | - Judyta Cielecka-Piontek
- Department of Pharmacognosy and Biomaterials, Poznan University of Medical Sciences, Rokietnicka 3 Str., 60-806 Poznań, Poland; (A.G.); (A.S.-K.)
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2
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Dhakal S, Macreadie IG. Simvastatin, Its Antimicrobial Activity and Its Prevention of Alzheimer's Disease. Microorganisms 2024; 12:1133. [PMID: 38930515 PMCID: PMC11205914 DOI: 10.3390/microorganisms12061133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 05/22/2024] [Accepted: 05/29/2024] [Indexed: 06/28/2024] Open
Abstract
Simvastatin, a blockbuster drug for treating hypercholesterolemia, has multifactorial benefits as an antimicrobial agent and plays a preventative role in reducing the incidence of Alzheimer's Disease (AD). Although most of the beneficial effects of simvastatin have been attributed to its ability to reduce cholesterol levels, recent scientific studies have suggested that its benefits are largely due to its pleiotropic effects in targeting other pathways, e.g., by inhibiting protein lipidation. There are certain pleiotropic effects that can be predicted from the inhibition of the mevalonate pathway; however, some of the effects of simvastatin in proteostasis lead to reduced levels of amyloid beta, the key contributor to AD. This review discusses the use of simvastatin as an antimicrobial agent and anti-AD drug.
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Affiliation(s)
- Sudip Dhakal
- Health and Biosecurity, Commonwealth Scientific and Industrial Research Organization (CSIRO), Geelong, VIC 3220, Australia;
| | - Ian G. Macreadie
- School of Science, RMIT University, Bundoora, VIC 3063, Australia
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3
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Rahamathulla M, Pokale R, Al-ebini Y, Osmani RAM, Thajudeen KY, Gundawar R, Ahmed MM, Farhana SA, Shivanandappa TB. Simvastatin-Encapsulated Topical Liposomal Gel for Augmented Wound Healing: Optimization Using the Box-Behnken Model, Evaluations, and In Vivo Studies. Pharmaceuticals (Basel) 2024; 17:697. [PMID: 38931364 PMCID: PMC11206487 DOI: 10.3390/ph17060697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/09/2024] [Accepted: 05/21/2024] [Indexed: 06/28/2024] Open
Abstract
Statins function beyond regulating cholesterol and, when administered systemically, can promote wound healing. However, studies have yet to explore the topical use of statins for wound healing. The present study demonstrated the topical administration of SIM and aimed to formulate, evaluate, and optimize Simvastatin (SIM)-encapsulated liposome gel carrier systems to facilitate successful topical wound healing. Liposomes containing SIM were formulated and optimized via a response surface methodology (RSM) using the thin-film hydration method. The effects of formulation variables, including the 1,2-dioleoyloxy-3-trimethylammoniumpropan (DOTAP) concentration, Span 80 concentration, and cholesterol concentration, on zeta potential (mV), entrapment efficacy (%), and particle size (nm) were studied. The optimized liposome formulation (F-07) exhibited a zeta potential value of 16.56 ± 2.51 mV, revealing robust stability and a high SIM encapsulation efficiency of 95.6 ± 4.2%, whereas its particle size of 190.3 ± 3.3 nm confirmed its stability and structural integrity. The optimized liposome gel demonstrated pseudoplastic flow behavior. This property is advantageous in topical drug delivery systems because of its ease of application, improved spreadability, and enhanced penetration, demonstrating prolonged SIM release. The assessment of the wound healing efficacy of the optimized liposomal gel formulation demonstrated a substantial decrease in wound size in mice on the sixteenth day post-wounding. These findings suggest that the use of liposomal gels is a potential drug delivery strategy for incorporating SIM, thereby augmenting its effectiveness in promoting wound healing.
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Affiliation(s)
- Mohamed Rahamathulla
- Department of Pharmaceutics, College of Pharmacy, King Khalid University, Abha 61421, Saudi Arabia;
| | - Rahul Pokale
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education and Research, Mysuru 570015, Karnataka, India;
| | - Yousef Al-ebini
- Department of Cosmetic Science, Faculty of Allied Medical Sciences, Al-Ahliyya Amman University, Amman 19328, Jordan;
- Faculty of Dentistry, Al-Ahliyya Amman University, Amman 19328, Jordan
| | - Riyaz Ali M. Osmani
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education and Research, Mysuru 570015, Karnataka, India;
| | - Kamal Y. Thajudeen
- Department of Pharmacognosy, College of Pharmacy, King Khalid University, Abha 61441, Saudi Arabia;
| | - Ravi Gundawar
- Department of Pharmaceutical Quality Assurance, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India;
| | - Mohammed Muqtader Ahmed
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia;
| | - Syeda Ayesha Farhana
- Department of Pharmaceutics, College of Pharmacy, Qassim University, Buraidah 51452, Saudi Arabia;
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Atif AN, Hatefi A, Arven A, Foroumadi A, Kadkhodaei S, Sadjadi A, Siavoshi F. Consumption of non-antibacterial drugs may have negative impact on Helicobacter pylori colonization in the stomach. Heliyon 2024; 10:e27327. [PMID: 38495192 PMCID: PMC10943393 DOI: 10.1016/j.heliyon.2024.e27327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 02/17/2024] [Accepted: 02/27/2024] [Indexed: 03/19/2024] Open
Abstract
Background Nineteen non-antibacterials were examined to show that their consumption for treatment of other diseases may inhibit Helicobacter pylori. Four antibiotics were used for comparison. Materials and methods Agar dilution method was used to examine the susceptibility of 20 H. pylori isolates to 4 antibiotics; metronidazole (MTZ), clarithromycin (CLR), amoxicillin (AMX), tetracycline (TET) and 19 non-antibacterials; proton pump inhibitors (PPIs), H2-blockers, bismuth subsalicylate (BSS), antifungals, statins, acetaminophen (ACE), aspirin (ASA), B-vitamins (B-Vits; Vit B1, Vit B6 and Vit Bcomplex) and vitamin C (Vit C). Blood agar plates were prepared with different concentrations of drugs and spot-inoculated with bacterial suspensions. Plates were incubated at 37 °C under microaerobic conditions and examined after 3-5 days. The isolate #20 that was mucoid and resistant to 19 drugs, including MTZ and SMV was tested against combined MTZ (8 μg/mL) and SMV (100 μg/mL). Results were analyzed statistically. Results Minimum inhibitory concentrations (MICs, μg/mL) of drugs and the frequency of susceptible H. pylori were determined as MTZ (8, 80%), CLR (2, 90%), AMX (1, 100%), TET (0.5, 70%), PPIs (8-128, 80%), H2-blockers (2000-8000, 75-80%), BSS (15, 85%), antifungals (64-256, 30-80%), statins (100-250, 35-90%), ACE (40, 75%), ASA (800, 75%), B-Vits (5000-20000, 80-100%) and Vit C (2048, 85%). Susceptibility of H. pylori isolates to 16 out of 19 non-antimicrobials (75-100%) was almost similar to those of antibiotics (70-100%) (P-value >0.05). The highest susceptibility rate (100%) belonged to Vit B1, Vit B6 and AMX. Out of 20 H. pylori isolates, 17 (85%) were susceptible to ≥13 non-antimicrobials and 3 (15%) were susceptible to < 13 (P-value <0.05). Mucoid H. pylori showed susceptibility to combination of MTZ and SMV. Conclusions Most of non-antibacterials inhibited H. pylori isolates, similar to antibiotics but their MICs exceeded those of antibiotics and their plasma concentrations. At low plasma concentration, non-antimicrobials may act as weak antibacterials, antibiotic adjuvants and immunostimulators.
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Affiliation(s)
- Allah Nazar Atif
- Department of Microbiology, School of Biology, University College of Sciences, University of Tehran, Tehran, Iran
- Department of Biology, Faculty of Sciences, Nangarhar University, Jalalabad, Afghanistan
| | - Atousa Hatefi
- Department of Microbiology, School of Biology, University College of Sciences, University of Tehran, Tehran, Iran
| | - Asadullah Arven
- Department of Microbiology, School of Biology, University College of Sciences, University of Tehran, Tehran, Iran
- Department of Biology, Faculty of Education, Daykundi University, Nilli, Afghanistan
| | - Alireza Foroumadi
- Department of Medicinal Chemistry, Faculty of Pharmacy and Drug Design & Development Research Center, The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
| | - Sara Kadkhodaei
- Department of Microbiology, School of Biology, University College of Sciences, University of Tehran, Tehran, Iran
| | - Alireza Sadjadi
- Digestive Disease Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Farideh Siavoshi
- Department of Microbiology, School of Biology, University College of Sciences, University of Tehran, Tehran, Iran
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5
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Parolina de Carvalho RD, de Andrade Moreno J, Roque SM, Chan DCH, Torrez WB, Stipp RN, Bueno-Silva B, de Lima PO, Cogo-Müller K. Statins and oral biofilm: Simvastatin as a promising drug to control periodontal dysbiosis. Oral Dis 2024; 30:669-680. [PMID: 36416468 DOI: 10.1111/odi.14446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 10/10/2022] [Accepted: 11/04/2022] [Indexed: 11/24/2022]
Abstract
OBJECTIVES This study evaluated antimicrobial activity of atorvastatin, pravastatin, rosuvastatin, and simvastatin against oral bacteria, and the interaction of simvastatin with standard antimicrobials (amoxicillin and metronidazole). METHODS Minimal inhibitory concentration assays were performed with Porphyromonas gingivalis, Prevotella intermedia, Fusobacterium nucleatum, Actinomyces odontolyticus, Streptococcus oralis, Streptococcus mitis, Streptococcus salivarius, Streptococcus sanguinis, and Streptococcus gordonii; checkerboard microdilution assays between simvastatin and standard antimicrobials; monospecies and multispecies biofilms. RESULTS Simvastatin showed the best antimicrobial activity against most species (MIC range from 3.12 to 25 μg/ml), highlighting the sensitivity of P. gingivalis. In the checkerboard assay, synergistic interaction was found between simvastatin and amoxicillin against S. oralis and S. sanguinis. P. gingivalis biofilm was inhibited by simvastatin at 10 and 50× Minimal inhibitory concentration, with similar effects to metronidazole. For multispecies biofilm, SMV reduced the biofilm metabolic activity (79%) and total counts (87%), comparable to amoxicillin. Simvastatin also reduced bacterial counts of Veilonnella parvula, P. gingivalis, Streptococcus mutans, Actinomyces naeslundii, P. intermedia, and Capnocytophaga ochracea in the multispecies biofilm. CONCLUSIONS Simvastatin showed antimicrobial and antibiofilm activity against oral bacteria and may contribute to the control of dysbiosis, and may be considered in clinical studies as an adjuvant in the treatment of periodontitis.
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Affiliation(s)
| | | | - Sindy Magri Roque
- Faculty of Pharmaceutical Sciences, University of Campinas, Campinas, Brazil
| | - Daniel Cheuk Hong Chan
- Department of Biosciences, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Willy Bustillos Torrez
- Dental Research Division, University of Guarulhos (UNG), Guarulhos, Brazil
- Research department, Universidad Franz Tamayo, Cochabamba, Bolivia
| | - Rafael Nóbrega Stipp
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Bruno Bueno-Silva
- Dental Research Division, University of Guarulhos (UNG), Guarulhos, Brazil
| | | | - Karina Cogo-Müller
- Faculty of Pharmaceutical Sciences, University of Campinas, Campinas, Brazil
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Bhunia S, Das A, Jana SK, Mandal S, Samanta S. Photoswitchable Antibiotic Hybrids: Spacer Length-Dependent Photochemical Control of Antibacterial Activity. Bioconjug Chem 2024; 35:92-98. [PMID: 38111208 DOI: 10.1021/acs.bioconjchem.3c00488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2023]
Abstract
Photopharmacology holds huge potential for the permanent (long-term) eradication of antibiotic resistance by the application of photoswitchable antibiotics. To construct such antibiotics, various methods have been employed to modify known antibiotics with photoswitches, such that the irradiated state shows activity comparable to or higher than that of the parent antibiotic and that a large activity difference between irradiated and nonirradiated states is achieved. However, most of those methods are ineffective when dealing with more than one drug with dissimilar structures. Here, we have demonstrated a new approach, in which two pharmacophores, one being a photoswitch, are covalently linked via a spacer of variable lengths, leading to a set of azopyrazole-norfloxacin antibiotic hybrids. All compounds showed a high degree of bidirectional photoisomerization, long thermal cis half-lives, and excellent photoresistance. Notably, the hybrid with an optimal four-carbon spacer length enabled the irradiated state to become 12-fold more potent than its nonirradiated state without losing much antimicrobial activity of norfloxacin. Only Gram-positive bacteria were found to be sensitive to this hybrid, and the full antibacterial potency of its irradiated state was found to be retained for nearly 24 h.
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Affiliation(s)
- Supriya Bhunia
- Department of Chemistry, University of Calcutta, 92 A.P.C. Road, Kolkata 700009, West Bengal, India
| | - Arpan Das
- Department of Chemistry, University of Calcutta, 92 A.P.C. Road, Kolkata 700009, West Bengal, India
| | - Santosh Kumar Jana
- Department of Microbiology, University of Calcutta, 35-Ballygunge Circular Road, Kolkata 700019, West Bengal, India
| | - Sukhendu Mandal
- Department of Microbiology, University of Calcutta, 35-Ballygunge Circular Road, Kolkata 700019, West Bengal, India
| | - Subhas Samanta
- Department of Chemistry, University of Calcutta, 92 A.P.C. Road, Kolkata 700009, West Bengal, India
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7
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Zahedipour F, Hosseini SA, Reiner Ž, Tedeschi-Reiner E, Jamialahmadi T, Sahebkar A. Therapeutic Effects of Statins: Promising Drug for Topical and Transdermal Administration. Curr Med Chem 2024; 31:3149-3166. [PMID: 37157198 DOI: 10.2174/0929867330666230508141434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 03/19/2023] [Accepted: 03/28/2023] [Indexed: 05/10/2023]
Abstract
Statins are HMG-CoA reductase inhibitors and decrease plasma low-density lipoprotein cholesterol (LDL-C) levels. They are well tolerated, and because of their LDL-C-lowering effect, they are utilized to decrease the risk of atherosclerosis and cardiovascular disease. However, statins have pleiotropic effects, including immunomodulatory, anti-inflammatory, antioxidant, and anticancer. Currently, oral administration is the only Food and Drug Administration (FDA)-approved route of administration for statins. However, other administration routes have demonstrated promising results in different pre-clinical and clinical studies. For instance, statins also seem beneficial in dermatitis, psoriasis, vitiligo, hirsutism, uremic pruritus, and graft-versus-host disease. Topically applied statins have been studied to treat seborrhea, acne, rhinophyma, and rosacea. They also have beneficial effects in contact dermatitis and wound healing in animal studies, (HIV) infection, osseointegration, porokeratosis, and some ophthalmologic diseases. Topical and transdermal application of statins is a non-invasive drug administration method that has shown significant results in bypassing the first-pass metabolism in the liver, thereby reducing possible adverse effects. This study reviews the multifaceted molecular and cellular impacts of statins, their topical and transdermal application, novel delivery systems, such as nanosystems for topical and transdermal administration and the challenges concerning this approach.
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Affiliation(s)
- Fatemeh Zahedipour
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Medical Biotechnology and Nanotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyede Atefe Hosseini
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Medical Biotechnology and Nanotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Željko Reiner
- University Hospital Center Zagreb, Department of Internal Medicine, Zagreb, Croatia
- Polish Mother's Memorial Hospital Research Institute, Lodz, Poland
| | | | - Tannaz Jamialahmadi
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Sahebkar
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
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8
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Yang X, Cao W, Gu X, Zheng L, Wang Q, Li Y, Wei F, Ma T, Zhang L, Wang Q. Simvastatin nanocrystals-based dissolving microneedles for wound healing. Int J Pharm 2023; 647:123543. [PMID: 37879572 DOI: 10.1016/j.ijpharm.2023.123543] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 10/06/2023] [Accepted: 10/20/2023] [Indexed: 10/27/2023]
Abstract
Currently, one of the main problems encountered in wound healing therapy is related to inefficient drug delivery. However, dissolving microneedles (DMNs) can be administered percutaneously to effectively deliver a drug to a deep wound area. Simvastatin (SIM) can promote wound healing, albeit its insolubility in water limits its application. Here, we designed a DMNs (SIM-NC@DMNs) drug delivery system loaded with SIM nanocrystals (SIM-NC) and evaluated its efficacy in wound healing. Based on our observations, the dissolution performance of insoluble SIM is significantly improved after the preparation of SIM-NC. For example, the saturation solubility of SIM-NC in deionized water and PBS increased by 150.57 times and 320.14 times, respectively. After the SIM-NC@DMNs are deeply inserted into the wound, the needle portion, which is composed of hyaluronic acid (HA), dissolves rapidly, and the SIM-NC loaded on the needle portion is efficiently released into the deep wound area for optimal therapeutic efficacy. The combination of NC and DMNs makes this system further effective for wound healing. Our cumulative work suggests that the newly developed SIM-NC@DMNs possess great potential in accelerating wound healing. By day 12 after treatment, the residual wound area in the Control group was 21.34 %, while the residual wound area in the SIM-NC@DMNs group was only 2.36 %. This result as well as provides certain evidence of its efficacy for wound healing therapy. The SIM-NC@DMNs drug delivery system may become an efficient treatment modality that promotes wound healing, with a promising potential in the field of wound healing research.
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Affiliation(s)
- Xuejing Yang
- School of Pharmacy, Bengbu Medical College, Bengbu, Anhui 233030, China
| | - Wenyu Cao
- School of Pharmacy, Bengbu Medical College, Bengbu, Anhui 233030, China
| | - Xun Gu
- School of Pharmacy, Bengbu Medical College, Bengbu, Anhui 233030, China
| | - Lijie Zheng
- School of Pharmacy, Bengbu Medical College, Bengbu, Anhui 233030, China
| | - Qiuyue Wang
- School of Pharmacy, Bengbu Medical College, Bengbu, Anhui 233030, China
| | - Yingying Li
- School of Pharmacy, Bengbu Medical College, Bengbu, Anhui 233030, China
| | - Fang Wei
- School of Pharmacy, Bengbu Medical College, Bengbu, Anhui 233030, China
| | - Tao Ma
- School of Pharmacy, Bengbu Medical College, Bengbu, Anhui 233030, China; Anhui Engineering Technology Research Center of Biochemical Pharmaceutical, Bengbu, Anhui 233030, China
| | - Lu Zhang
- School of Pharmacy, Bengbu Medical College, Bengbu, Anhui 233030, China; Anhui Engineering Technology Research Center of Biochemical Pharmaceutical, Bengbu, Anhui 233030, China
| | - Qingqing Wang
- School of Pharmacy, Bengbu Medical College, Bengbu, Anhui 233030, China; Anhui Engineering Technology Research Center of Biochemical Pharmaceutical, Bengbu, Anhui 233030, China.
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Schelz Z, Muddather HF, Zupkó I. Repositioning of HMG-CoA Reductase Inhibitors as Adjuvants in the Modulation of Efflux Pump-Mediated Bacterial and Tumor Resistance. Antibiotics (Basel) 2023; 12:1468. [PMID: 37760764 PMCID: PMC10525194 DOI: 10.3390/antibiotics12091468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/15/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023] Open
Abstract
Efflux pump (EP)-mediated multidrug resistance (MDR) seems ubiquitous in bacterial infections and neoplastic diseases. The diversity and lack of specificity of these efflux mechanisms raise a great obstacle in developing drugs that modulate efflux pumps. Since developing novel chemotherapeutic drugs requires large investments, drug repurposing offers a new approach that can provide alternatives as adjuvants in treating resistant microbial infections and progressive cancerous diseases. Hydroxy-methyl-glutaryl coenzyme-A (HMG-CoA) reductase inhibitors, also known as statins, are promising agents in this respect. Originally, statins were used in the therapy of dyslipidemia and for the prevention of cardiovascular diseases; however, extensive research has recently been performed to elucidate the functions of statins in bacterial infections and cancers. The mevalonate pathway is essential in the posttranslational modification of proteins related to vital eukaryotic cell functions. In this article, a comparative review is given about the possible role of HMG-CoA reductase inhibitors in managing diseases of bacterial and neoplastic origin. Molecular research and clinical studies have proven the justification of statins in this field. Further well-designed clinical trials are urged to clarify the significance of the contribution of statins to the lower risk of disease progression in bacterial infections and cancerous diseases.
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Affiliation(s)
| | | | - István Zupkó
- Institute of Pharmacodynamics and Biopharmacy, Faculty of Pharmacy, University of Szeged, Eötvös u. 6, 6720 Szeged, Hungary; (Z.S.); (H.F.M.)
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10
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Kabra S, Thosar NR, Malviya NS. Exploring the Synergistic Effect of Simvastatin in Oral Health Applications: A Literature Review. Cureus 2023; 15:e44411. [PMID: 37791218 PMCID: PMC10543113 DOI: 10.7759/cureus.44411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 08/30/2023] [Indexed: 10/05/2023] Open
Abstract
Statins are the first line of treatment for hyperlipidaemia. Along with lowering lipids, it also lowers mortality and cardiovascular risk. Statins play a major role in maintaining the homeostasis of the oral cavity via a number of different mechanisms. It includes regeneration of dentin and pulp by differentiation and increased development of mineralized tissue via the bone morphogenetic proteins (BMP)-2 Pathway. It shows effective bone health by leading to osteogenic differentiation mesenchymal stem cells, by facilitating epithelization process in wound healing, anti-inflammatory, antioxidant, antimicrobial, antiviral, and fungicidal properties. To the finest of the information we have, there have been very few comprehensive studies that have investigated the effects of statin drugs on various aspects of dental and oral health. As a result, the main objective of this review was to examine the effect of statins on oral health applications. According to the findings of our extensive review, statins have noteworthy and promising effects on several aspects of oral health, including dental pulp cells, chronic periodontitis, alveolar bone loss, orthodontic tooth movement, and so on. Nevertheless, it is concluded that local or even systemic administration of simvastatin should be regarded as an innovative, easily accessible, and safe therapeutic agent that has a significant impact on enhancing the oral health.
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Affiliation(s)
- Sakshi Kabra
- Pediatric and Preventive Dentistry, Sharard Pawar Dental College and Hospital, Datta Meghe Institute of Higher Education and Research (Deemed to be University), Wardha, IND
| | - Nilima R Thosar
- Pediatric and Preventive Dentistry, Sharard Pawar Dental College and Hospital, Datta Meghe Institute of Higher Education and Research (Deemed to be University), Wardha, IND
| | - Nishi S Malviya
- Pediatric and Preventive Dentistry, Sharard Pawar Dental College and Hospital, Datta Meghe Institute of Higher Education and Research (Deemed to be University), Wardha, IND
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11
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Woo AYM, Aguilar Ramos MA, Narayan R, Richards-Corke KC, Wang ML, Sandoval-Espinola WJ, Balskus EP. Targeting the human gut microbiome with small-molecule inhibitors. NATURE REVIEWS. CHEMISTRY 2023; 7:319-339. [PMID: 37117817 DOI: 10.1038/s41570-023-00471-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/20/2023] [Indexed: 04/30/2023]
Abstract
The human gut microbiome is a complex microbial community that is strongly linked to both host health and disease. However, the detailed molecular mechanisms underlying the effects of these microorganisms on host biology remain largely uncharacterized. The development of non-lethal, small-molecule inhibitors that target specific gut microbial activities enables a powerful but underutilized approach to studying the gut microbiome and a promising therapeutic strategy. In this Review, we will discuss the challenges of studying this microbial community, the historic use of small-molecule inhibitors in microbial ecology, and recent applications of this strategy. We also discuss the evidence suggesting that host-targeted drugs can affect the growth and metabolism of gut microbes. Finally, we address the issues of developing and implementing microbiome-targeted small-molecule inhibitors and define important future directions for this research.
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Affiliation(s)
- Amelia Y M Woo
- Harvard University, Department of Chemistry and Chemical Biology, Cambridge, MA, USA
| | | | - Rohan Narayan
- Harvard University, Department of Chemistry and Chemical Biology, Cambridge, MA, USA
| | | | - Michelle L Wang
- Harvard University, Department of Chemistry and Chemical Biology, Cambridge, MA, USA
| | - Walter J Sandoval-Espinola
- Harvard University, Department of Chemistry and Chemical Biology, Cambridge, MA, USA
- Universidad Nacional de Asunción, Facultad de Ciencias Exactas y Naturales, Departamento de Biotecnología, Laboratorio de Biotecnología Microbiana, San Lorenzo, Paraguay
| | - Emily P Balskus
- Harvard University, Department of Chemistry and Chemical Biology, Cambridge, MA, USA.
- Howard Hughes Medical Institute, Harvard University, Cambridge, MA, USA.
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12
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Li L, Zhang J, Zhou L, Shi H, Mai H, Su J, Ma X, Zhong J. The First Lanthipeptide from Lactobacillus iners, Inecin L, Exerts High Antimicrobial Activity against Human Vaginal Pathogens. Appl Environ Microbiol 2023; 89:e0212322. [PMID: 36847550 PMCID: PMC10057874 DOI: 10.1128/aem.02123-22] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 02/02/2023] [Indexed: 03/01/2023] Open
Abstract
Vaginal infections continue to be a serious public health issue, and developing new approaches to address antibiotic-resistant pathogens is an urgent task. The dominant vaginal Lactobacillus species and their active metabolites (e.g., bacteriocins) have the potential to defeat pathogens and help individuals recover from disorders. Here, we describe for the first time a novel lanthipeptide, inecin L, a bacteriocin from Lactobacillus iners with posttranslational modifications. The biosynthetic genes of inecin L were actively transcribed in the vaginal environment. Inecin L was active against the prevailing vaginal pathogens, such as Gardnerella vaginalis and Streptococcus agalactiae, at nanomolar concentrations. We demonstrated that the antibacterial activity of inecin L was closely related to the N terminus and the positively charged His13 residue. In addition, inecin L was a bactericidal lanthipeptide that showed little effect on the cytoplasmic membrane but inhibited the cell wall biosynthesis. Thus, the present work characterizes a new antimicrobial lanthipeptide from a predominant species of the human vaginal microbiota. IMPORTANCE The human vaginal microbiota plays essential roles in preventing pathogenic bacteria, fungi, and viruses from invading. The dominant vaginal Lactobacillus species show great potential to be developed as probiotics. However, the molecular mechanisms (such as bioactive molecules and their modes of action) involved in the probiotic properties remain to be determined. Our work describes the first lanthipeptide molecule from the dominant Lactobacillus iners. Additionally, inecin L is the only lanthipeptide found among the vaginal lactobacilli thus far. Inecin L shows strong antimicrobial activity toward the prevalent vaginal pathogens and antibiotic-resistant strains, suggesting that inecin L is a potent antibacterial molecule for drug development. In addition, our results show that inecin L exhibits specific antibacterial activity related to the residues in the N-terminal region and ring A, which will contribute to structure-activity relationship studies in lacticin 481-like lanthipeptides.
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Affiliation(s)
- Lili Li
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jie Zhang
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Liyan Zhou
- The Second Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Haijuan Shi
- The Second Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Hong Mai
- The Second Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Junchang Su
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Xingwang Ma
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jin Zhong
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
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13
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Sun T, Huang J, Zhang W, Zheng X, Wang H, Liu J, Leng H, Yuan W, Song C. Simvastatin-hydroxyapatite coatings prevent biofilm formation and improve bone formation in implant-associated infections. Bioact Mater 2023; 21:44-56. [PMID: 36017072 PMCID: PMC9395756 DOI: 10.1016/j.bioactmat.2022.07.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 07/18/2022] [Accepted: 07/29/2022] [Indexed: 11/29/2022] Open
Abstract
Implant-associated infections (IAIs) caused by biofilm formation are the most devastating complications of orthopedic surgery. Statins have been commonly and safely used drugs for hypercholesterolemia for many years. Here, we report that simvastatin-hydroxyapatite-coated titanium alloy prevents biofilm-associated infections. The antibacterial properties of simvastatin against Staphylococcus aureus and Staphylococcus epidermidis biofilms in vitro was confirmed by crystal violet staining and live-dead bacterial staining. We developed a simvastatin-and hydroxyapatite (Sim-HA)-coated titanium alloy via electrochemical deposition. Sim-HA coatings inhibited Staphylococcus aureus biofilm formation and improved the biocompatibility of the titanium alloy. Sim-HA coatings effectively prevented Staphylococcus aureus IAI in rat femurs, as confirmed by radiological assessment and histological examination. The antibacterial effects of the Sim-HA coatings were attributed to their inhibitory effects on biofilm formation, as verified by scanning electron microscopic observations and bacterial spread plate analysis. In addition, the Sim-HA coatings enhanced osteogenesis and osteointegration, as verified by micro-CT, histological evaluation, and biomechanical pull-out tests. In summary, Sim-HA coatings are promising implant materials for protection against biofilm-associated infections. Simvastatin-hydroxyapatite coatings were prepared on Ti6Al4V by electrochemical deposition process. The Simvastatin-hydroxyapatite coatings inhibited S. aureus biofilm formation and improved biocompatibility in vitro. The coatings exhibited antibacterial effects and improved bone formation in a rat femur IAI model. Simvastatin coatings are promising for application in orthopedic implants.
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14
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Zaki RM, Seshadri VD, Mutayran AS, Elsawaf LA, Hamad AM, Almurshedi AS, Yusif RM, Said M. Wound Healing Efficacy of Rosuvastatin Transethosomal Gel, I Optimal Optimization, Histological and In Vivo Evaluation. Pharmaceutics 2022; 14:pharmaceutics14112521. [PMID: 36432712 PMCID: PMC9692372 DOI: 10.3390/pharmaceutics14112521] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 11/04/2022] [Accepted: 11/16/2022] [Indexed: 11/22/2022] Open
Abstract
This study aimed to make a formulation and statistical optimization of transethosomal formulations of rosuvastatin (ROS) to enhance its topical wound healing efficiency. Design-Expert® software was used to employ I optimal design. The formulation variables in the study were surfactant concentration (%w/v), ethanol concentration (%w/v) and surfactant type (span 60 or tween 80), while the dependent responses were entrapment efficiency percent (EE%), vesicle size (VS) and zeta potential (ZP). The numerical optimization process employed by the design expert software resulted in an optimum formula composed of 0.819439 (%w/v) span 60, 40 (%w/v) ethanol and 100 mg lecithin with a desirability of 0.745. It showed a predicted EE% value of 66.5517 vs. 277.703 nm and a ZP of -33. When it was prepared and validated, it showed less than a 5% deviation from the predicted values. The optimum formula was subjected to further characterizations, such as DSC, XRD, TEM, in vitro release, the effect of aging and wound healing efficiency. The DSC thermogram made a confirmation of the compatibility of ROS with the ingredients used in the formulation. XRD showed the encapsulation of ROS in the transethosomal vesicles. The TEM image pointed out the spherical nature of the nanovesicles with the absence of aggregation. Additionally, the optimum formula revealed an enhancement of drug release in comparison with the drug suspension. It also showed good stability for one month. Furthermore, it revealed good wound healing efficiency when compared with the standard silver sulphadiazine (1% w/w) ointment or the drug-loaded gel, which could be related to the enhanced penetration of the nanosized vesicles of TESMs into the skin, which enhances the wound healing process. So, it could be regarded as a promising carrier of ROS for the treatment of chronic wounds.
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Affiliation(s)
- Randa Mohammed Zaki
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, P.O. Box 173, Al-Kharj 11942, Saudi Arabia
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62514, Egypt
- Correspondence: ; Tel.: +966-540-617-870
| | - Vidya Devanathadesikan Seshadri
- Department of Pharmacology and Toxicology, College of Pharmacy, Prince Sattam Bin Abdulaziz University, P.O. Box 173, Al-Kharj 11942, Saudi Arabia
| | - Alanoud S. Mutayran
- Department of Pharmacology and Toxicology, College of Pharmacy, Prince Sattam Bin Abdulaziz University, P.O. Box 173, Al-Kharj 11942, Saudi Arabia
| | - Lara A. Elsawaf
- Department of Pharmacology and Toxicology, College of Pharmacy, Prince Sattam Bin Abdulaziz University, P.O. Box 173, Al-Kharj 11942, Saudi Arabia
| | - Abubaker M. Hamad
- Department of Pathophysiology, College of Health Sciences, AL-Rayan Colleges, Al-Hijra Road, Madinah Al Munawwarah 42541, Saudi Arabia
| | - Alanood S. Almurshedi
- Department of Pharmaceutics, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Rehab Mohammad Yusif
- Department of Pharmaceutics, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
- Department of Pharmaceutics and Pharmaceutical Technology, College of Pharmacy, Taibah University, P.O. Box 30039, Madinah Al Munawwarah 41477, Saudi Arabia
| | - Mayada Said
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
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Ullah F, Ali Khan MF, Khan NH, Rehman MF, Shah SS, Mustaqeem M, Ullah S, Zhang Q, Shi H. Simvastatin-Loaded Lipid Emulsion Nanoparticles: Characterizations and Applications. ACS OMEGA 2022; 7:23643-23652. [PMID: 35847279 PMCID: PMC9280776 DOI: 10.1021/acsomega.2c02242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Simvastatin (SIM) is a diet drug to treat high lipid levels in the blood. It has the drawback of being metabolized in humans' gastrointestinal tract (GIT) when taken in an oral dosage form. To enhance the role of SIM in treating hyperlipidemias and bypassing its metabolism in GIT, a biodegradable nanocarrier as a SIM-loaded lipid emulsion nanoparticle via the solvent injection method was designed. Cholesterol acts as a lipid core, and Tween 80 was utilized to stabilize the core. The optimized nanoformulation was characterized for its particle diameter, zeta potential, surface morphology, entrapment efficiency, crystallinity, and molecular interaction. Furthermore, the transdermal hydrogel was characterized by physical appearance, rheology, pH, and spreadability. In vitro assays were executed to gauge the potential of LENPs and olive oil for transdermal delivery. The mean particle size and zeta potential of the optimized nanoparticles were 174 nm and -22.5 mV 0.127, respectively. Crystallinity studies and Fourier transform infrared analyses revealed no molecular interactions. Hydrogels showed a sustained release compared to SIM-loaded LENPs that can be proposed as a better delivery system for SIM. We encourage further investigations to explore the effect of reported formulations for transdermal delivery by in vivo experiments.
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Affiliation(s)
- Faiz Ullah
- Department
of Chemistry, Quaid-i-Azam University, Islamabad 15320, Pakistan
| | | | - Nazeer Hussain Khan
- Henan
International Joint Laboratory for Nuclear Protein Regulation, School
of Basic Medical Sciences, Henan University, Kaifeng, Henan 475004, China
- School
of Life Sciences, Henan University, Kaifeng, Henan 475004, China
| | | | - Syed Sakhawat Shah
- Department
of Chemistry, Quaid-i-Azam University, Islamabad 15320, Pakistan
| | - Muhammad Mustaqeem
- Department
of Chemistry, Thal University, Bhakkar Campus, Bhakkar 30000, Pakistan
| | - Sami Ullah
- Department
of Zoology, Government College University, Faisalabad 54000, Pakistan
| | - Qidi Zhang
- Department
of Gastroenterology, Shanghai General Hospital, Shanghai Jiao Tong, University School of Medicine, Shanghai 200025, China
| | - Hongchao Shi
- Department
of Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong, University School of Medicine, Shanghai 200025, China
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16
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Kim SR, Son M, Kim YR. The risk of stroke according to statin medication compliance in older people with chronic periodontitis: an analysis using the Korea National Health Insurance Service-Senior Cohort Database. Epidemiol Health 2022; 44:e2022055. [PMID: 35798024 PMCID: PMC9754917 DOI: 10.4178/epih.e2022055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 07/05/2022] [Indexed: 12/25/2022] Open
Abstract
OBJECTIVES We investigated the risk of stroke according to statin medication compliance in older people with chronic periodontitis. METHODS Chronic periodontitis patients were extracted from the National Health Insurance Service-Senior Cohort Database from 2002 to 2014. Among 255,056 chronic periodontitis patients, 41,412 patients with statin prescriptions for 28 days or more were included. The study population was divided into the top 25% of medication compliance group (TSG) and the lower 25% of medication compliance group (BSG). After 1:1 propensity score matching was performed, the final number of patients in the BSG and TSG was 6,172 each. To analyze the risk of stroke, a Cox proportional hazard model was performed to calculate hazard ratios (HRs) and 95% confidence intervals (95% CIs) after adjusting for age, sex, income level, hypertension, diabetes, and Charlson comorbidity index. RESULTS In the Kaplan-Meier curve, the disease-free probability was prominently lower in the BSG than in the TSG (p for log-rank= 0.001). The HR in the multivariable-adjusted model for stroke occurrence in the TSG compared to the BSG was 0.79 (95% CI, 0.67 to 0.92; p= 0.002). Subgroup analyses showed significant associations between compliance to statin medication and stroke, especially in female, people 85 years or older, and patients with comorbidities. CONCLUSIONS Increasing compliance to statins may reduce stroke risk in older adults with chronic periodontitis. Therefore, in order to increase medication compliance among older people with chronic periodontitis, it is necessary for medical staff to make efforts to provide effective medication guidance.
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Affiliation(s)
- Seon-Rye Kim
- Department of Healthcare Management, Youngsan University, Yangsan, Korea
| | - Minkook Son
- Department of Physiology, College of Medicine, Dong-A University, Busan, Korea
| | - Yu-Rin Kim
- Department of Dental Hygiene, Silla University, Busan, Korea,Correspondence: Yu-Rin Kim Department of Dental Hygiene, Silla University, 140 Baegyang-daero 700beon-gil, Sasang-gu, Busan 46958, Korea E-mail:
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17
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Hale SJM, Wagner Mackenzie B, Lux CA, Biswas K, Kim R, Douglas RG. Topical Antibiofilm Agents With Potential Utility in the Treatment of Chronic Rhinosinusitis: A Narrative Review. Front Pharmacol 2022; 13:840323. [PMID: 35770097 PMCID: PMC9234399 DOI: 10.3389/fphar.2022.840323] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 03/24/2022] [Indexed: 11/13/2022] Open
Abstract
The role of bacterial biofilms in chronic and recalcitrant diseases is widely appreciated, and the treatment of biofilm infection is an increasingly important area of research. Chronic rhinosinusitis (CRS) is a complex disease associated with sinonasal dysbiosis and the presence of bacterial biofilms. While most biofilm-related diseases are associated with highly persistent but relatively less severe inflammation, the presence of biofilms in CRS is associated with greater severity of inflammation and recalcitrance despite appropriate treatment. Oral antibiotics are commonly used to treat CRS but they are often ineffective, due to poor penetration of the sinonasal mucosa and the inherently antibiotic resistant nature of bacteria in biofilms. Topical non-antibiotic antibiofilm agents may prove more effective, but few such agents are available for sinonasal application. We review compounds with antibiofilm activity that may be useful for treating biofilm-associated CRS, including halogen-based compounds, quaternary ammonium compounds and derivatives, biguanides, antimicrobial peptides, chelating agents and natural products. These include preparations that are currently available and those still in development. For each compound, antibiofilm efficacy, mechanism of action, and toxicity as it relates to sinonasal application are summarised. We highlight the antibiofilm agents that we believe hold the greatest promise for the treatment of biofilm-associated CRS in order to inform future research on the management of this difficult condition.
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Affiliation(s)
- Samuel J M Hale
- Department of Surgery, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Brett Wagner Mackenzie
- Department of Surgery, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Christian A Lux
- Department of Surgery, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Kristi Biswas
- Department of Surgery, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Raymond Kim
- Department of Surgery, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Richard G Douglas
- Department of Surgery, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
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18
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Ghasemi N, Yavari H, Samiei M, Asl Aminabadi N, Dabbaghi Tabriz F, Taheri S, Davoudi P. Effect of three intracanal medicaments used in pulp regeneration on the push-out bond strength of mineral trioxide aggregate and calcium-enriched mixture: An in vitro study. J Dent Res Dent Clin Dent Prospects 2022; 16:40-44. [PMID: 35936929 PMCID: PMC9339740 DOI: 10.34172/joddd.2022.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 12/25/2021] [Indexed: 11/09/2022] Open
Abstract
Background. The bond strength of the materials used as a cervical barrier in the pulp regeneration is essential for the success of treatment. This study aimed to evaluate the effects of triple antibiotic paste (TAP), double antibiotic paste (DAP), and simvastatin as intracanal medicaments on the dislodgement resistance of mineral trioxide aggregate (MTA) and calcium-enriched mixture (CEM). Methods. A total of 160 extracted human single-rooted teeth were selected, and root canal preparation was carried out. The teeth in each group were randomly divided into four subgroups: TAP, DAP, simvastatin, and the control group (without intracanal medicament). Four weeks after placing the medicaments, it was removed by sodium hypochlorite, and MTA and CEM were placed in the coronal third of the root canals. After a week, 2-mm-thick dentin disks were prepared from the coronal third of the roots, and the push-out test was performed using a universal testing machine. The data were analyzed using two-way ANOVA and independent t-test at a significance level of 0.05. Results. Regardless of the intracanal medicament, there was no significant difference between the overall bond strength of MTA (59.3±10 MPa) and CEM (55.8±11 MPa) (P=0.6). Furthermore, there were no significant differences in bond strength between the two intracanal medicament groups and the control group (P>0.05). Conclusion. Under the limitations of the current study, DAP, simvastatin, and TAP, as intracanal medicaments, did not adversely affect the push-out bond strength of CEM and MTA.
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Affiliation(s)
- Negin Ghasemi
- Dental and Periodontal Research Center, Department of Endodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hamidreza Yavari
- Dental and Periodontal Research Center, Department of Endodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Samiei
- Dental and Periodontal Research Center, Department of Endodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Naser Asl Aminabadi
- Department of Pediatric Dentistry, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fatemeh Dabbaghi Tabriz
- Department of Operative Dentistry, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Samra Taheri
- Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Paria Davoudi
- Department of Endodontics, Faculty of Dentistry, Shahid Beheshti Medical University, Tehran, Iran
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19
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Jampilek J. Drug repurposing to overcome microbial resistance. Drug Discov Today 2022; 27:2028-2041. [PMID: 35561965 DOI: 10.1016/j.drudis.2022.05.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 05/02/2022] [Accepted: 05/06/2022] [Indexed: 12/15/2022]
Abstract
Infections are a growing global threat, and the number of resistant species of microbial pathogens is alarming. However, the rapid development of cross-resistant or multidrug-resistant strains and the development of so-called 'superbugs' are in stark contrast to the number of newly launched anti-infectives on the market. In this review, I summarize the causes of antimicrobial resistance, briefly discuss different approaches to the discovery and development of new anti-infective drugs, and focus on drug repurposing strategy, which is discussed from all possible perspectives. A comprehensive overview of drugs of other indications tested for their in vitro antimicrobial activity to support existing anti-infective therapeutics is provided, including several critical remarks on this strategy of repurposing non-antibiotics to antibacterial drugs.
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Affiliation(s)
- Josef Jampilek
- Department of Analytical Chemistry, Faculty of Natural Sciences, Comenius University, Ilkovicova 6, 842 15 Bratislava, Slovakia; Department of Chemical Biology, Faculty of Science, Palacky University, Slechtitelu 27, 783 71 Olomouc, Czech Republic.
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20
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Twilley D, Reva O, Meyer D, Lall N. Mupirocin Promotes Wound Healing by Stimulating Growth Factor Production and Proliferation of Human Keratinocytes. Front Pharmacol 2022; 13:862112. [PMID: 35479318 PMCID: PMC9035886 DOI: 10.3389/fphar.2022.862112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 03/09/2022] [Indexed: 11/13/2022] Open
Abstract
Mupirocin has been reported for its role in the treatment of infected wounds through its antibacterial activity, however the role of mupirocin in promoting wound healing via alternative mechanisms has not been extensively evaluated. This study aimed to evaluate the potential effect of mupirocin to promote wound healing, not only through its antibacterial activity but by increasing human keratinocyte proliferation and growth factor production. In the scratch assay, using human keratinocytes (HaCat), mupirocin (at 0.1 and 0.2 mM) significantly increased wound closure compared to the vehicle control. Cell viability, measured from the scratch assay, verified the increase in wound closure, where mupirocin at both concentrations showed higher cell viability compared to the vehicle control. In addition, mupirocin at 0.1 mM significantly stimulated the production of hepatocyte growth factor and M-CSF in HaCat cells, whereas at 0.2 mM, PDGF-AA and EPO were increased. The findings of this study suggest that mupirocin, which is commonly used as an antibacterial agent for the treatment of wounds, also facilitates the wound healing process by stimulating the proliferation of human keratinocytes and enhancing the production of several growth factors involved in wound healing. This is the first report on the effect of mupirocin on growth factors expressed by human keratinocytes as well as the stimulation of keratinocyte proliferation.
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Affiliation(s)
- Danielle Twilley
- Department of Plant and Soil Sciences, Faculty of Natural and Agricultural Sciences, University of Pretoria, Pretoria, South Africa
| | - Oleg Reva
- Department of Biochemistry, Genetics and Microbiology, Faculty of Natural and Agricultural Sciences, Centre for Bioinformatics and Computational Biology, University of Pretoria, Pretoria, South Africa
| | - Debra Meyer
- Department of Biochemistry, Faculty of Science, University of Johannesburg, Johannesburg, South Africa
| | - Namrita Lall
- Department of Plant and Soil Sciences, Faculty of Natural and Agricultural Sciences, University of Pretoria, Pretoria, South Africa
- School of Natural Resources, College of Agriculture, Food and Natural Resources, University of Missouri, Columbia, MO, United States
- College of Pharmacy, JSS Academy of Higher Education and Research, Mysuru, India
- Bio-Tech Research and Development Institute, University of the West Indies, Kingston, Jamaica
- *Correspondence: Namrita Lall,
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21
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Rahimi S, Ghasemi N, Davoudi P, Taleb I, Farajollahi M, Rahimi Darehchi N, Kazeminejad E. Antimicrobial effects of different concentrations of simvastatin versus triple antibiotic paste on Enterococcus faecalis biofilms at different stages of development. J Dent Res Dent Clin Dent Prospects 2022; 16:153-158. [PMID: 36704189 PMCID: PMC9871176 DOI: 10.34172/joddd.2022.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 09/09/2022] [Indexed: 01/20/2023] Open
Abstract
Background. This study assessed the antimicrobial effects of different concentrations of simvastatin versus triple antibiotic paste (TAP) on Enterococcus faecalis biofilms at different stages of development. Methods. In this in vitro study, 70 human single-rooted mature premolars were decoronated, instrumented, and autoclave-sterilized. Next, an E. faecalis suspension was prepared and inoculated into the canals to obtain 4- and 6-week biofilms. After ensuring biofilm formation, the samples in each group were randomly assigned to 5 subgroups (n=12): 1 mg/mL TAP, 10 mg/ mL TAP, 1 mg/mL simvastatin, 10 mg/mL simvastatin, and positive control (phosphate-buffered saline solution). The medicaments were applied in the canals, and the teeth were incubated for one week. Dentin samples were collected by a rotary file, cultured, and the number of E. faecalis colonies was counted. The Kruskal-Wallis, Mann-Whitney U, and Wilcoxon tests were used for data analysis (α=0.05). Results. There were significant differences in colony counts between the two concentrations of TAP and the control group against both 4- and 6-week biofilms (P<0.05). The antibacterial effect of 10 mg/mL TAP and simvastatin was stronger than that of 1 mg/mL concentration against the 4- and 6-week E. faecalis biofilms (P<0.05). Furthermore, 10 mg/mL TAP and simvastatin were more effective against the 4-week biofilms than the 6-week biofilms (P<0.05). Conclusion. According to the present results and since biofilms may remain viable in the root canal system for weeks to months, applying 10 mg/mL TAP and simvastatin might be more effective.
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Affiliation(s)
- Saeed Rahimi
- Dental and Periodontal Research Center, Department of Endodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Negin Ghasemi
- Department of Endodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Paria Davoudi
- Department of Endodontics, Faculty of Dentistry, Shahid Beheshti Medical University, Tehran, Iran
| | | | - Mehran Farajollahi
- Department of Endodontics, Faculty of Dentistry, Shahid Beheshti Medical University, Tehran, Iran,Corresponding author: Mehran Farajollahi,
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22
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Low SS, Yew M, Lim CN, Chai WS, Low LE, Manickam S, Tey BT, Show PL. Sonoproduction of nanobiomaterials - A critical review. ULTRASONICS SONOCHEMISTRY 2022; 82:105887. [PMID: 34954629 PMCID: PMC8799622 DOI: 10.1016/j.ultsonch.2021.105887] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/19/2021] [Accepted: 12/21/2021] [Indexed: 05/19/2023]
Abstract
Ultrasound (US) demonstrates remarkable potential in synthesising nanomaterials, particularly nanobiomaterials targeted towards biomedical applications. This review briefly introduces existing top-down and bottom-up approaches for nanomaterials synthesis and their corresponding synthesis mechanisms, followed by the expounding of US-driven nanomaterials synthesis. Subsequently, the pros and cons of sono-nanotechnology and its advances in the synthesis of nanobiomaterials are drawn based on recent works. US-synthesised nanobiomaterials have improved properties and performance over conventional synthesis methods and most essentially eliminate the need for harsh and expensive chemicals. The sonoproduction of different classes and types of nanobiomaterials such as metal and superparamagnetic nanoparticles (NPs), lipid- and carbohydrate-based NPs, protein microspheres, microgels and other nanocomposites are broadly categorised based on the physical and/or chemical effects induced by US. This review ends on a good note and recognises US-driven synthesis as a pragmatic solution to satisfy the growing demand for nanobiomaterials, nonetheless some technical challenges are highlighted.
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Affiliation(s)
- Sze Shin Low
- Research Centre of Life Science and Healthcare, China Beacons Institute, University of Nottingham Ningbo China, 199 Taikang East Road, Ningbo 315100, Zhejiang, China
| | - Maxine Yew
- Department of Mechanical, Materials and Manufacturing Engineering, University of Nottingham Ningbo China, 199 Taikang East Road, Ningbo 315100, Zhejiang, China
| | - Chang Nong Lim
- School of Engineering and Physical Sciences, Heriot-Watt University Malaysia, No. 1, Jalan Venna P5/2, Precinct 5, Putrajaya 62200, Malaysia
| | - Wai Siong Chai
- School of Mechanical Engineering and Automation, Harbin Institute of Technology, Shenzhen 518055, Guangdong, China
| | - Liang Ee Low
- Biofunctional Molecule Exploratory (BMEX) Research Group, School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway 47500, Selangor Darul Ehsan, Malaysia; Advanced Engineering Platform, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway 47500, Selangor Darul Ehsan, Malaysia; Chemical Engineering Discipline, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway 47500, Selangor Darul Ehsan, Malaysia
| | - Sivakumar Manickam
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Jalan Tungku Link Gadong, Bandar Seri Begawan BE1410, Brunei Darussalam.
| | - Beng Ti Tey
- Advanced Engineering Platform, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway 47500, Selangor Darul Ehsan, Malaysia; Chemical Engineering Discipline, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway 47500, Selangor Darul Ehsan, Malaysia
| | - Pau Loke Show
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, Semenyih 43500, Selangor Darul Ehsan, Malaysia.
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Repurposing of the Tamoxifen Metabolites to Treat Methicillin-Resistant Staphylococcus epidermidis and Vancomycin-Resistant Enterococcus faecalis Infections. Microbiol Spectr 2021; 9:e0040321. [PMID: 34668743 PMCID: PMC8528103 DOI: 10.1128/spectrum.00403-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Repurposing drugs provides a new approach to the fight against multidrug-resistant (MDR) bacteria. We have reported that three major tamoxifen metabolites, N-desmethyltamoxifen (DTAM), 4-hydroxytamoxifen (HTAM), and endoxifen (ENDX), presented bactericidal activity against Acinetobacter baumannii and Escherichia coli. Here, we aimed to analyze the activity of a mixture of the three tamoxifen metabolites against methicillin-resistant Staphylococcus epidermidis (MRSE) and Enterococcus species. MRSE (n = 17) and Enterococcus species (Enterococcus faecalisn = 8 and Enterococcus faeciumn = 10) strains were used. MIC of the mixture of DTAM, HTAM, and ENDX and that of vancomycin were determined by microdilution assay. The bactericidal activity of the three metabolites together and of vancomycin against MRSE (SE385 and SE742) and vancomycin-resistant E. faecalis (EVR1 and EVR2) strains was determined by time-kill curve assays. Finally, changes in membrane permeability of SE742 and EVR1 strains were analyzed using fluorescence assays. MIC90 of tamoxifen metabolites was 1 mg/liter for MRSE strains and 2 mg/liter for E. faecalis and E. faecium strains. In the time-killing assays, tamoxifen metabolites mixture showed bactericidal activity at 4× MIC for MRSE (SE385 and SE742) and at 2× MIC and 4× MIC for E. faecalis (EVR1 and EVR2) strains, respectively. SE385 and EVR2 strains treated with the tamoxifen metabolites mixture presented higher membrane permeabilization. Altogether, these results showed that tamoxifen metabolites presented antibacterial activity against MRSE and vancomycin-resistant E. faecalis, suggesting that tamoxifen metabolites might increase the arsenal of drug treatments against these bacterial pathogens. IMPORTANCE The development of new antimicrobial therapeutic strategies requires immediate attention to avoid the tens of millions of deaths predicted to occur by 2050 as a result of MDR bacterial infections. In this study, we assessed the antibacterial activity of three major tamoxifen metabolites, N-desmethyltamoxifen (DTAM), 4-hydroxytamoxifen (HTAM), and endoxifen (ENDX), against methicillin-resistant Staphylococcus epidermidis (MRSE) and Enterococcus spp. (E. faecalis and E. faecium). We found that the tamoxifen metabolites have antibacterial activity against MRSE, E. faecalis, and E. faecium strains by presenting MIC90 between 1 and 2 mg/liter and bactericidal activity over 24 h. In addition, this antibacterial activity is paralleled by an increased membrane permeability of these strains. Our results showed that tamoxifen metabolites might be potentially used as a therapeutic alternative when treating MRSE and E. faecalis strains in an animal model of infection.
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Pant N, Eisen DP. Non-Antimicrobial Adjuvant Strategies to Tackle Biofilm-Related Staphylococcus aureus Prosthetic Joint Infections. Antibiotics (Basel) 2021; 10:antibiotics10091060. [PMID: 34572641 PMCID: PMC8465242 DOI: 10.3390/antibiotics10091060] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 08/27/2021] [Accepted: 08/28/2021] [Indexed: 12/15/2022] Open
Abstract
Staphylococcus aureus frequently causes community- and hospital-acquired infections. S. aureus attachment followed by biofilm formation on tissues and medical devices plays a significant role in the establishment of chronic infections. Staphylococcal biofilms encase bacteria in a matrix and protect the cells from antimicrobials and the immune system, resulting in infections that are highly resistant to treatment. The biology of biofilms is complex and varies between organisms. In this review, we focus our discussion on S. aureus biofilms and describe the stages of their formation. We particularly emphasize genetic and biochemical processes that may be vulnerable to novel treatment approaches. Against this background, we discuss treatment strategies that have been successful in animal models of S. aureus biofilm-related infection and consider their possible use for the prevention and eradication of biofilm-related S. aureus prosthetic joint infection.
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New Insight into the Effects of Metformin on Diabetic Retinopathy, Aging and Cancer: Nonapoptotic Cell Death, Immunosuppression, and Effects beyond the AMPK Pathway. Int J Mol Sci 2021; 22:ijms22179453. [PMID: 34502359 PMCID: PMC8430477 DOI: 10.3390/ijms22179453] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 08/25/2021] [Accepted: 08/25/2021] [Indexed: 12/12/2022] Open
Abstract
Under metabolic stress conditions such as hypoxia and glucose deprivation, an increase in the AMP:ATP ratio activates the AMP-activated protein kinase (AMPK) pathway, resulting in the modulation of cellular metabolism. Metformin, which is widely prescribed for type 2 diabetes mellitus (T2DM) patients, regulates blood sugar by inhibiting hepatic gluconeogenesis and promoting insulin sensitivity to facilitate glucose uptake by cells. At the molecular level, the most well-known mechanism of metformin-mediated cytoprotection is AMPK pathway activation, which modulates metabolism and protects cells from degradation or pathogenic changes, such as those related to aging and diabetic retinopathy (DR). Recently, it has been revealed that metformin acts via AMPK- and non-AMPK-mediated pathways to exert effects beyond those related to diabetes treatment that might prevent aging and ameliorate DR. This review focuses on new insights into the anticancer effects of metformin and its potential modulation of several novel types of nonapoptotic cell death, including ferroptosis, pyroptosis, and necroptosis. In addition, the antimetastatic and immunosuppressive effects of metformin and its hypothesized mechanism are also discussed, highlighting promising cancer prevention strategies for the future.
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Tufail S, Siddique MI, Sarfraz M, Sohail MF, Shahid MN, Omer MO, Katas H, Rasool F. Simvastatin nanoparticles loaded polymeric film as a potential strategy for diabetic wound healing: in vitro and in vivo evaluation. Curr Drug Deliv 2021; 19:534-546. [PMID: 34288836 DOI: 10.2174/1567201818666210720150929] [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: 01/22/2021] [Revised: 06/10/2021] [Accepted: 06/15/2021] [Indexed: 11/22/2022]
Abstract
INTRODUCTION The pleiotropic effects of statins are recently explored for wound healing through angiogenesis and lymph-angiogenesis that could be of great importance in diabetic wounds. AIM Aim of the present study is to fabricate nanofilm embedded with simvastatin loaded chitosan nanoparticles (CS-SIM-NPs) has been reported herein to explore the efficacy of SIM in diabetic wound healing. METHODS The NPs, prepared via ionic gelation, were 173nm ± 2.645 in size with a zeta potential -0.299 ± 0.009 and PDI 0.051 ± 0.088 with excellent encapsulation efficiency (99.97%). The optimized formulation (CS: TPP, 1:1) that exhibited the highest drug release (91.64%) was incorporated into polymeric nanofilm (HPMC, Sodium alginate, PVA), followed by in vitro characterization. The optimized nanofilm was applied to the wound created on the back of diabetes-induced (with alloxan injection 120 mg/kg) albino rats. RESULTS The results showed significant (p < 0.05) improvement in the wound healing process compared to the diabetes-induced non-treated group. The results highlighted the importance of nanofilms loaded with SIM-NPs in diabetic wound healing through angiogenesis promotion at the wound site. CONCLUSION Thus, CS-SIM-NPs loaded polymeric nanofilms could be an emerging diabetic wound healing agent in the industry of nanomedicines.
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Affiliation(s)
- Saima Tufail
- Institute of Pharmaceutical Sciences (IPS), University of Veterinary and Animal Sciences (UVAS), Lahore, Pakistan
| | - Muhammad Irfan Siddique
- Institute of Pharmaceutical Sciences (IPS), University of Veterinary and Animal Sciences (UVAS), Lahore, Pakistan
| | - Muhammad Sarfraz
- College of Pharmacy, Al Ain University, Al Ain , postal code 64141, United Arab Emirates
| | - Muhammad Farhan Sohail
- Riphah Institute of Pharmaceutical Sciences (RIPS), Riphah International University, Lahore, Pakistan
| | - Muhammad Nabeel Shahid
- Institute of Pharmaceutical Sciences (IPS), University of Veterinary and Animal Sciences (UVAS), Lahore, Pakistan
| | - Muhammad Ovais Omer
- Pharmacology and Toxicology Department, University of Veterinary and Animal Sciences (UVAS), Lahore, Pakistan
| | - Haliza Katas
- Centre for Drug Delivery Technology, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300, Kuala Lumpur, Malaysia
| | - Fatima Rasool
- Punjab University College of Pharmacy, University of the Punjab, Lahore, Pakistan
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Eldesouky HE, Lanman NA, Hazbun TR, Seleem MN. Aprepitant, an antiemetic agent, interferes with metal ion homeostasis of Candida auris and displays potent synergistic interactions with azole drugs. Virulence 2021; 11:1466-1481. [PMID: 33100149 PMCID: PMC7588212 DOI: 10.1080/21505594.2020.1838741] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
With the rapid increase in the frequency of azole-resistant species, combination therapy appears to be a promising tool to augment the antifungal activity of azole drugs against resistant Candida species. Here, we report the effect of aprepitant, an antiemetic agent, on the antifungal activities of azole drugs against the multidrug-resistant Candida auris. Aprepitant reduced the minimum inhibitory concentration (MIC) of itraconazole in vitro, by up to eight-folds. Additionally, the aprepitant/itraconazole combination interfered significantly with the biofilm-forming ability of C. auris by 95 ± 0.13%, and significantly disrupted mature biofilms by 52 ± 0.83%, relative to the untreated control. In a Caenorhabditis elegans infection model, the aprepitant/itraconazole combination significantly prolonged the survival of infected nematodes by ~90% (five days post-infection) and reduced the fungal burden by ~92% relative to the untreated control. Further, this novel drug combination displayed broad-spectrum synergistic interactions against other medically important Candida species such as C. albicans, C. krusei, C. tropicalis, and C. parapsilosis (ƩFICI ranged from 0.08 to 0.31). Comparative transcriptomic profiling and mechanistic studies indicated aprepitant/itraconazole interferes significantly with metal ion homeostasis and compromises the ROS detoxification ability of C. auris. This study presents aprepitant as a novel, potent, and broad-spectrum azole chemosensitizing agent that warrants further investigation.
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Affiliation(s)
- Hassan E Eldesouky
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University , West Lafayette, IN, USA.,Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University , Blacksburg, VA, USA
| | - Nadia A Lanman
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University , West Lafayette, IN, USA.,Purdue University Center for Cancer Research, Purdue University , West Lafayette, IN, USA
| | - Tony R Hazbun
- Department of Medicinal Chemistry and Molecular Pharmacology, College of Pharmacy, Purdue University , West Lafayette, IN, USA
| | - Mohamed N Seleem
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University , West Lafayette, IN, USA.,Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University , Blacksburg, VA, USA
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Foletto VS, da Rosa TF, Serafin MB, Bottega A, Hörner R. Repositioning of non-antibiotic drugs as an alternative to microbial resistance: a systematic review. Int J Antimicrob Agents 2021; 58:106380. [PMID: 34166776 DOI: 10.1016/j.ijantimicag.2021.106380] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 02/10/2021] [Accepted: 06/10/2021] [Indexed: 01/19/2023]
Abstract
The global spread of microbial resistance coupled with high costs and slow pace in the discovery of a new antibiotic have made drug repositioning an attractive and promising alternative in the treatment of infections caused by multidrug resistant (MDR) microorganisms. The reuse involves the production of compounds with lower costs and development time, using diversified production technologies. The present systematic review aimed to present a selection of studies published in the last 20 years, which report the antimicrobial activity of non-antibiotic drugs that are candidates for repositioning, which could be used against the current microbial multidrug resistance. A search was performed in the PubMed, SciELO and Google Scholar databases using the following search strategies: [(drug repurposing) OR (drug repositioning) OR (repositioning) AND (non-antibiotic) AND (antibacterial activity) AND (antimicrobial activity)]. Overall, 112 articles were included, which explored the antimicrobial activity in antidepressants, antihypertensives, anti-inflammatories, antineoplastics, hypoglycemic agents, among other drugs. It was concluded that they have significant antimicrobial activity in vitro and in vivo, against standard strain and clinical isolates (Gram-negative and Gram-positive) and fungi. When associated with antibacterials, most of these drugs had their antibacterial activity enhanced. It was also a consensus of the studies included in this review that the presence of aromatic rings in the molecular structure contributes to antimicrobial activity. This review highlights the potential repositioning of several classes of non-antibiotic drugs as promising candidates for repositioning in the treatment of severe bacterial infections of MDR bacteria, extensively resistant (XDR) and pan-resistant (PDR) to drugs.
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Affiliation(s)
- Vitória S Foletto
- Universidade Federal de Santa Maria, Programa de Pós-Graduação em Ciências Farmacêuticas, Santa Maria, RS, Brasil
| | - Taciéli F da Rosa
- Universidade Federal de Santa Maria, Programa de Pós-Graduação em Ciências Farmacêuticas, Santa Maria, RS, Brasil
| | - Marissa B Serafin
- Universidade Federal de Santa Maria, Programa de Pós-Graduação em Ciências Farmacêuticas, Santa Maria, RS, Brasil
| | - Angelita Bottega
- Universidade Federal de Santa Maria, Programa de Pós-Graduação em Ciências Farmacêuticas, Santa Maria, RS, Brasil
| | - Rosmari Hörner
- Universidade Federal de Santa Maria, Programa de Pós-Graduação em Ciências Farmacêuticas, Santa Maria, RS, Brasil; Universidade Federal de Santa Maria, Departamento de Análises Clínicas e Toxicológicas, Santa Maria, RS, Brasil.
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Chen W, Dong B, Liu W, Liu Z. Recent Advances in Peptide Nucleic Acids as Antibacterial Agents. Curr Med Chem 2021; 28:1104-1125. [PMID: 32484766 DOI: 10.2174/0929867327666200602132504] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 05/06/2020] [Accepted: 05/13/2020] [Indexed: 11/22/2022]
Abstract
The emergence of antibiotic-resistant bacteria and the slow progress in searching for new antimicrobial agents makes it hard to treat bacterial infections and cause problems for the healthcare system worldwide, including high costs, prolonged hospitalizations, and increased mortality. Therefore, the discovery of effective antibacterial agents is of great importance. One attractive alternative is antisense peptide nucleic acid (PNA), which inhibits or eliminates gene expression by binding to the complementary messenger RNA (mRNA) sequence of essential genes or the accessible and functionally important regions of the ribosomal RNA (rRNA). Following 30 years of development, PNAs have played an extremely important role in the treatment of Gram-positive, Gram-negative, and acidfast bacteria due to their desirable stability of hybrid complex with target RNA, the strong affinity for target mRNA/rRNA, and the stability against nucleases. PNA-based antisense antibiotics can strongly inhibit the growth of pathogenic and antibiotic-resistant bacteria in a sequence-specific and dose-dependent manner at micromolar concentrations. However, several fundamental challenges, such as intracellular delivery, solubility, physiological stability, and clearance still need to be addressed before PNAs become broadly applicable in clinical settings. In this review, we summarize the recent advances in PNAs as antibacterial agents and the challenges that need to be overcome in the future.
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Affiliation(s)
- Wei Chen
- Hunan Key Laboratory for Super Microstructure and Ultrafast Process, School of Physics and Electronics Central South University, Changsha 410083, China
| | - Bo Dong
- Hunan Key Laboratory for Super Microstructure and Ultrafast Process, School of Physics and Electronics Central South University, Changsha 410083, China
| | - Wenen Liu
- Department of Clinical Laboratory, Xiangya Hospital of Central South University, Changsha 410008, China
| | - Zhengchun Liu
- Hunan Key Laboratory for Super Microstructure and Ultrafast Process, School of Physics and Electronics Central South University, Changsha 410083, China
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Andrade JT, Lima WG, Sousa JF, Saldanha AA, Nívea Pereira De Sá, Morais FB, Prates Silva MK, Ribeiro Viana GH, Johann S, Soares AC, Araújo LA, Antunes Fernandes SO, Cardoso VN, Siqueira Ferreira JM. Design, synthesis, and biodistribution studies of new analogues of marine alkaloids: Potent in vitro and in vivo fungicidal agents against Candida spp. Eur J Med Chem 2021; 210:113048. [PMID: 33316690 DOI: 10.1016/j.ejmech.2020.113048] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 06/26/2020] [Accepted: 11/23/2020] [Indexed: 12/28/2022]
Abstract
Invasive candidiasis, such as intra-abdominal candidiasis (IAC), is a significant cause of morbidity and mortality worldwide. IAC is still poorly understood, and its treatment represents a challenge for public health. In this study, we showed the in vitro anti-Candida activity of four alkaloid synthetic derivatives and their antifungal potential in a murine model of IAC. The biological effects of alkaloids were evaluated against Candida spp. through the determination of the minimum inhibitory concentration (MIC). For the alkaloids that showed antifungal activity, the fungicidal concentration, time-kill curve, synergism with azoles and polyenes, phenotypic effects, and the effect against virulence factors were also determined. The most active alkaloids were selected for in vivo assays. The compounds 6a and 6b were active against C. albicans, C. glabrata, and C. tropicalis (MIC 7.8 μg/mL) and showed promising antifungal activity against C. krusei (MIC 3.9 μg/mL). The compound 6a presented a potent fungicidal effect in vitro, eliminating the yeast C. albicans after 8 h of incubation at MIC. An important in vitro synergistic effect with ketoconazole was observed for these two alkaloids. They also induced the lysis of fungal cells by binding to the ergosterol of the membrane. Besides that, 6a and 6b were able to reduce yeast-to-hyphal transition in C. albicans, as well as inhibit the biofilm formation of this pathogen. In the in vivo assay, the compound 6a did not show acute toxicity and was mainly absorbed by the liver, spleen, and lung after a parenteral administration. Also, this analogue significantly reduced the fungal load of C. albicans on the kidney and spleen of animals with IAC. Therefore, these results showed that the compound 6a is a potent anti-Candida agent in vitro and in vivo.
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Affiliation(s)
- Jéssica Tauany Andrade
- Laboratório de Microbiologia Médica, Campus Universidade Federal de São João Del-Rei (UFSJ), Centro-Oeste Dona Lindu, Divinópolis, Minas Gerais, Brazil
| | - William Gustavo Lima
- Laboratório de Microbiologia Médica, Campus Universidade Federal de São João Del-Rei (UFSJ), Centro-Oeste Dona Lindu, Divinópolis, Minas Gerais, Brazil; Laboratório de Radioisótopos, Departamento de Análises Clinicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Jaqueline França Sousa
- Laboratório de Compostos Bioativos e Catalíticos, Campus Universidade Federal de São João Del-Rei (UFSJ), Centro-Oeste Dona Lindu, Divinópolis, Minas Gerais, Brazil
| | - Aline Aparecida Saldanha
- Laboratório de Farmacologia da Dor e Inflamação, Campus Universidade Federal de São João Del-Rei (UFSJ), Centro-Oeste Dona Lindu, Divinópolis, Minas Gerais, Brazil
| | - Nívea Pereira De Sá
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Fernanda Barbara Morais
- Laboratório de Microbiologia Médica, Campus Universidade Federal de São João Del-Rei (UFSJ), Centro-Oeste Dona Lindu, Divinópolis, Minas Gerais, Brazil
| | - Mayra Karla Prates Silva
- Laboratório de Microbiologia Médica, Campus Universidade Federal de São João Del-Rei (UFSJ), Centro-Oeste Dona Lindu, Divinópolis, Minas Gerais, Brazil
| | - Gustavo Henrique Ribeiro Viana
- Laboratório de Compostos Bioativos e Catalíticos, Campus Universidade Federal de São João Del-Rei (UFSJ), Centro-Oeste Dona Lindu, Divinópolis, Minas Gerais, Brazil
| | - Susana Johann
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Adriana Cristina Soares
- Laboratório de Farmacologia da Dor e Inflamação, Campus Universidade Federal de São João Del-Rei (UFSJ), Centro-Oeste Dona Lindu, Divinópolis, Minas Gerais, Brazil
| | - Leonardo Allan Araújo
- Serviço de Recursos Vegetais e Opoterápicos (SRVO), Diretoria de Pesquisa (DPD), Fundação Ezequiel Dias (FUNED), Belo Horizonte, MG, Brazil
| | - Simone Odília Antunes Fernandes
- Laboratório de Radioisótopos, Departamento de Análises Clinicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Valbert Nascimento Cardoso
- Laboratório de Radioisótopos, Departamento de Análises Clinicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Jaqueline Maria Siqueira Ferreira
- Laboratório de Microbiologia Médica, Campus Universidade Federal de São João Del-Rei (UFSJ), Centro-Oeste Dona Lindu, Divinópolis, Minas Gerais, Brazil.
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Salem HF, Nafady MM, Ewees MGED, Hassan H, Khallaf RA. Rosuvastatin calcium-based novel nanocubic vesicles capped with silver nanoparticles-loaded hydrogel for wound healing management: optimization employing Box-Behnken design: in vitro and in vivo assessment. J Liposome Res 2021; 32:45-61. [PMID: 33353435 DOI: 10.1080/08982104.2020.1867166] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Chronic wounds are a serious problem that could cause severe morbidity and even death. The ability of statins including rosuvastatin calcium (RVS) to enhance wound healing was well reported. However, RVS is poorly soluble and has low bioavailability. Thus, this study aimed to prepare and evaluate RVS-loaded nanocubics to enhance its skin performance. In addition, silver nanoparticles (AgNPs) exhibited potent antimicrobial activity, thus, the optimum RVS-loaded nanocubics was capped with AgNPs to evaluate its effect in wound management. Box-Behnken design was adopted to prepare RVS nanocubics. The design investigated the effect of lecithin, poloxamer 407 concentrations and hydration time on vesicle size, zeta potential (ZP), entrapment efficiency (EE%) and in vitro drug release%. Optimum formulation capped with AgNPs was incorporated into a gel base and examined for wound healing efficiency using different pharmacological tests in rats. Nanocubics have shown a mean diameter between 167.2 ± 7.8 and 408 ± 18.4 nm, ZP values ranging from -20.9 ± 1.9 to -53.5 ± 4 mV, EE% equivocated between 31.6 ± 1.4 and 94.4 ± 8.6 and drug release after 12 h between 17.9 ± 1.9 and 68.0 ± 4.0%. The histopathological studies and serum tumour necrosis factor alpha (TNF-α) and interleukin-1β (IL-1β) levels confirmed the greater efficacy of RVS nanocubics capped with AgNPs gel in wound healing when compared with gentamicin ointment. RVS-loaded nanocubic vesicles and AgNPs-loaded hydrogel could be considered as a promising platform to enhance the wound healing and tissue repair processes.
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Affiliation(s)
- Heba F Salem
- Pharmaceutics and Industrial Pharmacy Department, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt
| | - Mohamed Mahmoud Nafady
- Pharmaceutics and Clinical Pharmacy Department, Faculty of Pharmacy, Nahda University, Beni-Suef, Egypt
| | | | - Hend Hassan
- Pharmaceutics and Clinical Pharmacy Department, Faculty of Pharmacy, Nahda University, Beni-Suef, Egypt
| | - Rasha A Khallaf
- Pharmaceutics and Industrial Pharmacy Department, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt
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Abdelaziz AA, El-Barrawy MA, El-Nagar RAM. Potent synergistic combination of rosuvastatin and levofloxacin against Staphylococcus aureus: in vitro and in vivo study. J Appl Microbiol 2020; 131:182-196. [PMID: 33326676 DOI: 10.1111/jam.14968] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 11/26/2020] [Accepted: 12/08/2020] [Indexed: 11/29/2022]
Abstract
AIMS The present study aims to evaluate the capability of rosuvastatin to synergize with levofloxacin against Staphylococcus aureus. METHODS AND RESULTS Rosuvastatin inhibited the growth of S. aureus with minimum inhibitory concentration of 16 μg ml-1 . Additionally, it showed a bactericidal effect at 4x minimum inhibition concentration. Using a checkerboard method, a synergistic effect was recorded when rosuvastatin was combined with levofloxacin showing against S. aureus isolate 28 (S 28). Furthermore, this combination was also able to display a significant reduction in biofilm formation (92·8%) and suppress the production of coagulase and β-haemolysin, and virulence factors of S. aureus isolate 28. An animal model for wound infection was used to assess the therapeutic effect of the test combination, in vivo. It was found that the test combination reduced the bacterial burden in the infected wounds by 91·3%. Pathological and histological analyses have revealed a decline in cell infiltration in the excisional wound skin tissue after treatment with rosuvastatin and levofloxacin combination. CONCLUSIONS Rosuvastatin combined with levofloxacin can be considered as a promising solution to combat S. aureus antibiotic resistance phenomenon. SIGNIFICANCE AND IMPACT OF THE STUDY This study unveils the potential effect of rosuvastatin when used in combination with levofloxacin can be used as a topical antibacterial agent to treat S. aureus skin infections.
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Affiliation(s)
- A A Abdelaziz
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - M A El-Barrawy
- Department of Medical Microbiology, High Institute of Public Health (HIPH), Alexandria University, Alexandria, Egypt
| | - R A M El-Nagar
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Tanta University, Tanta, Egypt
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Hosny KM, Alhakamy NA, Sindi AM, Khallaf RA. Coconut Oil Nanoemulsion Loaded with a Statin Hypolipidemic Drug for Management of Burns: Formulation and In Vivo Evaluation. Pharmaceutics 2020; 12:pharmaceutics12111061. [PMID: 33171816 PMCID: PMC7695003 DOI: 10.3390/pharmaceutics12111061] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 11/04/2020] [Accepted: 11/05/2020] [Indexed: 12/19/2022] Open
Abstract
Burn wound healing is a complex process that involves the repair of injured tissues and the control of infection to diminish the scar formation, pain, and discomfort associated with such injuries. The aim of this research was to formulate and optimize a self-nanoemulsion drug delivery system based on the use of coconut oil and loaded with simvastatin. Coconut oil possesses antiinflammatory and antibacterial activity, and simvastatin has interesting properties for promoting the wound-healing process because it increases the production of the vascular endothelial growth factor at the site of injury. The Box–Behnken design was employed for the optimization of the coconut oil–simvastatin self-nanoemulsion drug delivery system. The prepared formulations were characterized according to globular size and their activity in the healing of burn wounds by assessing the mean wound diameter and level of interlukin-6 in experimental animals. Additionally, the antimicrobial activity of the prepared formulations was assessed. The nanoemulsion was considered adequately formed when it had droplets of between 65 and 195 nm. The statistical design proved the important synergistic effect of coconut oil and simvastatin for burn wound management in their synergistic potentiation of wound closure and their anti-inflammatory and antimicrobial effects. The optimum formulation achieved up to a 5.3-fold decrease in the mean burn wound diameter, a 4.25-fold decrease in interleukin-6 levels, and a 6-fold increase in the inhibition zone against Staphylococcus aureus when compared with different control formulations. Therefore, the designed nanoemulsions containing a combination of coconut oil and simvastatin could be considered promising platforms for the treatment of chronic and burn wounds.
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Affiliation(s)
- Khaled M. Hosny
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
- Center of Excellence for Drug Research and Pharmaceutical Industries, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62511, Egypt;
- Correspondence:
| | - Nabil A. Alhakamy
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
- Center of Excellence for Drug Research and Pharmaceutical Industries, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Amal M. Sindi
- Oral Diagnostic Science Department, Faculty of Dentistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
| | - Rasha A. Khallaf
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62511, Egypt;
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Lima WG, de Brito JCM, Cardoso VN, Fernandes SOA. In-depth characterization of antibacterial activity of melittin against Staphylococcus aureus and use in a model of non-surgical MRSA-infected skin wounds. Eur J Pharm Sci 2020; 156:105592. [PMID: 33049305 DOI: 10.1016/j.ejps.2020.105592] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 10/07/2020] [Accepted: 10/08/2020] [Indexed: 12/12/2022]
Abstract
Skin infections caused by methicillin-resistant Staphylococcus aureus (MRSA) require the development of new and effective topical antibiotics. In this context, melittin, the main component of apitoxin, has a potent antibacterial effect. However, little is known regarding the anti-inflammatory potential this peptide in infection models, or its ability to induce clinically important resistance. Here, we aimed to conduct an in-depth characterization of the antibacterial potential of melittin in vitro and evaluate the pharmaceutical potential of an ointment containing melittin for the treatment of non-surgical infections induced by MRSA. The minimum inhibitory concentration of melittin varied from 0.12 to 4 μM. The antibacterial effect was mainly bactericidal and fast (approximately 0.5 h after incubation) and was maintained even in stationary cells and mature MRSA biofilms. Melittin interacts synergistically with beta-lactams and aminoglycosides, and its ability to form pores in the membrane reverses the resistance of vancomycin-intermediate Staphylococcus aureus (VISA) to amoxicillin, and vancomycin. Its ability to induce resistance in vitro was absent, and melittin was stable in several conditions often associated with infected wounds. In vivo, aointment containing melittin reduced bacterial load and the content of pro-inflammatory cytokines, such as tumor necrosis factor-α, interleukin-6 (IL-6), and IL-1 beta. Collectively, these data point to melittin as a potential candidate for topical formulations aimed at the treatment of non-surgical infections caused by MRSA.
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Affiliation(s)
- William Gustavo Lima
- Laboratório de Radioisótopos, Departamento de Análises Clinicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | | | - Valbert Nascimento Cardoso
- Laboratório de Radioisótopos, Departamento de Análises Clinicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Simone Odília Antunes Fernandes
- Laboratório de Radioisótopos, Departamento de Análises Clinicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.
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Fan W, Duan M, Sun Q, Fan B. Simvastatin enhanced antimicrobial effect of Ag + against E. faecalis infection of dentine through PLGA co-delivery submicron particles. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2020; 31:2331-2346. [PMID: 32880530 DOI: 10.1080/09205063.2020.1811188] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Enterococcus faecalis (E. faecalis) is one of the dominant bacteria for refractory infections of teeth. Silver ions (Ag+) have been proved to be a strong bactericide but with high cytotoxicity and discoloration property. Simvastatin is an agent used for dyslipidemia treatment and has anti-inflammatory property. In this study, Ag+ and simvastatin were for the first time used in combination, and poly (lactide-co-glycolide) (PLGA) submicron particles carrying both Ag+ and simvastatin (AgS-PLGA) were fabricated for further investigations. Results confirmed the enhanced antibacterial activity against E. faecalis of Ag+ by simvastatin. AgS-PLGA could release both Ag+ and simvastatin for 24 days and also showed enhanced antibacterial activities. On dentin slices, AgS-PLGA could enter dentinal tubules by ultrasonic activation and inhibit the colonization of E. faecalis. AgS-PLGA showed no cytotoxicity on MC3T3-E1 cells and slight suppressive effect on RAW-264.7 cells, and could reduce the secretion of IL-6 and IL-1β of RAW-264.7 cells. AgS-PLGA could be developed as a new biomaterial for infection and inflammation control for dental and related medical treatments.
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Affiliation(s)
- Wei Fan
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
| | - Mengting Duan
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
| | - Qing Sun
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
| | - Bing Fan
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
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In Vitro Effect of Pitavastatin and Its Synergistic Activity with Isavuconazole against Acanthamoeba castellanii. Pathogens 2020; 9:pathogens9090681. [PMID: 32825652 PMCID: PMC7559540 DOI: 10.3390/pathogens9090681] [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: 07/28/2020] [Revised: 08/18/2020] [Accepted: 08/19/2020] [Indexed: 02/06/2023] Open
Abstract
Acanthamoeba keratitis (AK) can occur in healthy individuals wearing contact lenses and it is a painful, blinding infection of the cornea caused by a free-living ameba Acanthamoeba. Current treatment for AK relies on a combination of chlorhexidine, propamidine isethionate, and polyhexamethylene biguanide. However, the current regimen includes an aggressive disinfectant and in 10% of cases recurrent infection ensues. Therefore, development of efficient and safe drugs is a critical unmet need to avert blindness. Acanthamoeba sterol biosynthesis includes two essential enzymes HMG-CoA reductase (HMGR) and sterol 14-demethylase (CYP51), and we earlier identified a CYP51 inhibitor isavuconazole that demonstrated nanomolar potency against A. castellanii trophozoites. In this study, we investigated the effect of well-tolerated HMGR inhibitors and identified pitavastatin that is active against trophozoites of three different clinical strains of A.castellanii. Pitavastatin demonstrated an EC50 of 0.5 to 1.9 µM, depending on strains. Combination of pitavastatin and isavuconazole is synergistic and led to 2- to 9-fold dose reduction for pitavastatin and 11- to 4000-fold dose reduction for isavuconazole to achieve 97% of growth inhibition. Pitavastatin, either alone or in combination with isavuconazole, may lead to repurposing for the treatment of Acanthamoeba keratitis.
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Provesicular elastic carriers of Simvastatin for enhanced wound healing activity: An in-vitro/in-vivo study. Int J Pharm 2020; 585:119470. [DOI: 10.1016/j.ijpharm.2020.119470] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 05/13/2020] [Accepted: 05/22/2020] [Indexed: 12/26/2022]
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Antibacterial and antibiofilm activities of synthetic analogs of 3-alkylpyridine marine alkaloids. Med Chem Res 2020. [DOI: 10.1007/s00044-020-02549-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Adachi N, Ayukawa Y, Yasunami N, Furuhashi A, Imai M, Sanda K, Atsuta I, Koyano K. Preventive effect of fluvastatin on the development of medication-related osteonecrosis of the jaw. Sci Rep 2020; 10:5620. [PMID: 32221325 PMCID: PMC7101417 DOI: 10.1038/s41598-020-61724-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Accepted: 03/01/2020] [Indexed: 12/23/2022] Open
Abstract
Medication-related osteonecrosis of the jaw (MRONJ) occurs in patients undergoing oral surgery while medicated with bisphosphonate, denosumab or anti-angiogenic agents. We employed a MRONJ-like rat model to investigate whether injecting fluvastatin at extraction sites prevents MRONJ-like lesion. A MRONJ-like model was created by treating rats with zoledronate and dexamethasone, extracting teeth, and immediately injecting fluvastatin at the extraction site. The experimental group comprised three subgroups treated with low (0.1 mg/kg; FS-L), medium (1.0 mg/kg; FS-M) and high concentrations (10 mg/kg; FS-H) of fluvastatin. Necrotic bone exposure was significantly lower in the FS-M (p = 0.028) and FS-H (p = 0.041) groups than in the MRONJ group. The distance between the edges of the epithelial surfaces was significantly shorter in the FS-M (p = 0.042) and FS-H (p = 0.041) groups. The area of necrotic bone and the necrotic bone ratio were significantly smaller in the FS-H group (p = 0.041 and p = 0.042 respectively). Bone volume fraction calculated on μ-CT images was significantly larger in the FS-H group than in the MRONJ group (p = 0.021). Our findings suggest that a single local injection of fluvastatin following tooth extraction can potentially reduce the chance of developing MRONJ-like lesion in rats.
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Affiliation(s)
- Naomi Adachi
- Section of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Yasunori Ayukawa
- Section of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan.
| | - Noriyuki Yasunami
- Section of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan.,Department of Reconstructive Science, School of Dental Medicine, University of Connecticut, CT, USA
| | - Akihiro Furuhashi
- Section of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Mikio Imai
- Section of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Koma Sanda
- Section of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Ikiru Atsuta
- Division of Advanced Dental Devices and Therapeutics, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Kiyoshi Koyano
- Section of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
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Cui J, Duan M, Sun Q, Fan W. Simvastatin decreases the silver resistance of E. faecalis through compromising the entrapping function of extracellular polymeric substances against silver. World J Microbiol Biotechnol 2020; 36:54. [PMID: 32172435 DOI: 10.1007/s11274-020-02830-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 03/09/2020] [Indexed: 12/31/2022]
Abstract
Enterococcus faecalis (E. faecalis) is a Gram-positive bacterium closely related to many refractory infections of human and shows the resistant ability against the antibacterial effects of silver. Simvastatin is a semisynthetic compound derived from lovastatin and a hydroxymethyl glutaryl coenzyme A(HMG-COA) reductase inhibitor showing certain inhibitive effects on bacteria. The main purpose of this study was to establish and characterize the Ag+/silver nanoparticles (AgNPs)-resistant E. faecalis, and further evaluate the function of extracellular polymeric substances (EPS) in the silver resistance and the effect of simvastatin on the silver-resistance of E. faecalis. The results showed that the established silver-resistant E. faecalis had strong resistance against both Ag+ and AgNPs and simvastatin could decrease the silver-resistance of both original and Ag+/AgNPs-resistant E. faecalis. The Transmission electron microscopy (TEM), High-angle annular dark-field (HAADF) and mapping images showed that the silver ions or particles aggregated and confined in the EPS on surface areas of the cell membrane when the silver-resistant E. faecalis were incubated with Ag+ or AgNPs. When the simvastatin was added, the silver element was not confined in the EPS and entered the bacteria. These findings may indicate that the silver resistance of E. faecalis was derived from the entrapping function of EPS, but simvastatin could compromise the function of EPS to decrease the silver resistant ability of E. faecalis.
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Affiliation(s)
- Jingwen Cui
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‑MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, 430079, People's Republic of China
| | - Mengting Duan
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‑MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, 430079, People's Republic of China
| | - Qing Sun
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‑MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, 430079, People's Republic of China
| | - Wei Fan
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‑MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, 430079, People's Republic of China.
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Rana R, Sharma R, Kumar A. Repurposing of Existing Statin Drugs for Treatment of Microbial Infections: How Much Promising? Infect Disord Drug Targets 2020; 19:224-237. [PMID: 30081793 DOI: 10.2174/1871526518666180806123230] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Revised: 05/20/2018] [Accepted: 07/23/2018] [Indexed: 01/27/2023]
Abstract
Today's microbial infections' resistance to approved drugs, the emergence of new infectious diseases and lack of vaccines, create a huge threat to human health. Thus, there is an urgent need to create novel antimicrobial agents, but the high cost and prolonged timeline of novel drug discovery and development is the major barrier to make new drugs. Therefore, there is a need for specific cost effective approaches in order to identify new drugs for the treatment of various microbial infections. Drug repurposition is an alternative technique to find existing clinically approved drugs for other indications. This approach may enhance the portfolio of Pharmaceutical companies by reducing the time and money required for the development of new chemical entity. In literature, various studies have reported some encouraging results regarding the antimicrobial use of existing statin drugs. Further, some clinical studies have also shown the protective effect of statin drugs in reduction of the morbidity and mortality due to many infectious diseases but complete understanding is still lacking. Thus, there is a need for better understanding of the use of statin drugs, especially in the context of antimicrobial effects. In this review, we try to summarize the use of statin drugs in various infectious diseases and their proposed antimicrobial mechanism of action. Further, current challenges and future perspectives of repurposition of statin drugs as antimicrobial agents have also been discussed.
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Affiliation(s)
- Ritika Rana
- Department of Pharmacology, Indo-Soviet Friendship Pharmacy College (ISFCP), Moga, Punjab, India
| | - Ruchika Sharma
- Department of Biotechnology, Indo-Soviet Friendship Institute of Professional Studies (ISFIPS), Moga, Punjab, India
| | - Anoop Kumar
- Department of Pharmacology, Indo-Soviet Friendship Pharmacy College (ISFCP), Moga, Punjab, India
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Strategies to Combat Multidrug-Resistant and Persistent Infectious Diseases. Antibiotics (Basel) 2020; 9:antibiotics9020065. [PMID: 32041137 PMCID: PMC7168131 DOI: 10.3390/antibiotics9020065] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 01/16/2020] [Accepted: 02/01/2020] [Indexed: 12/21/2022] Open
Abstract
Antibiotic failure is one of the most worrying health problems worldwide. We are currently facing an international crisis with several problematic facets: new antibiotics are no longer being discovered, resistance mechanisms are occurring in almost all clinical isolates of bacteria, and recurrent infections caused by persistent bacteria are hampering the successful treatment of infections. In this context, new anti-infectious strategies against multidrug-resistant (MDR) and persistent bacteria, as well as the rescue of Food and Drug Administration (FDA)-approved compounds (drug repurposing), are being explored. Among the highlighted new anti-infectious strategies, in this review, we focus on antimicrobial peptides, anti-virulence compounds, phage therapy, and new molecules. As drugs that are being repurposed, we highlight anti-inflammatory compounds, anti-psychotics, anti-helminthics, anti-cancerous drugs, and statins.
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Hammad SG, El-Gazzar MG, Abutaleb NS, Li D, Ramming I, Shekhar A, Abdel-Halim M, Elrazaz EZ, Seleem MN, Bilitewski U, Abouzid KAM, El-Hossary EM. Synthesis and antimicrobial evaluation of new halogenated 1,3-Thiazolidin-4-ones. Bioorg Chem 2019; 95:103517. [PMID: 31884138 DOI: 10.1016/j.bioorg.2019.103517] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 12/08/2019] [Accepted: 12/16/2019] [Indexed: 12/22/2022]
Abstract
The ongoing prevalence of multidrug-resistant bacterial pathogens requires the development of new effective antibacterial agents. In this study, two series of halogenated 1,3-thiazolidin-4-ones were synthesized and characterized. All the synthesized thiazolidinone derivatives were evaluated for their antimicrobial activity. Biological screening of the tested compounds revealed the antibacterial activity of the chlorinated thiazolidinones 4a, 4b and 4c against Escherichia coli TolC-mutant, with MIC values of 16 µg/mL. A combination of a sub-inhibitory concentration of colistin (0.25 × MIC) with compounds 4a, 4b or 4c showed antibacterial activity against different Gram-negative bacteria (MICs = 4-16 µg/mL). Interestingly, compounds 4a, 4b and 4c were not cytotoxic to murine fibroblasts and Caco-2 cells. The chlorinated thiazolidinone derivative 16d demonstrated a bacteriostatic activity against a panel of pathogenic Gram-positive bacteria, including clinical isolates of methicillin and vancomycin-resistant Staphylococcus aureus, Listeria monocytogenes and multidrug-resistant Staphylococcus epidermidis (MICs = 8 - 64 µg/mL), with no cytotoxicity against both Caco-2 and L929 cells. Compound 16d was superior to vancomycin in disruption of the pre-formed MRSA biofilm. Furthermore, the three fluorinated thiazolidinone derivatives 26c, 30c and 33c showed a hindrance to hemolysin activity, without cytotoxicity against L929 cells.
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Affiliation(s)
- Shaymaa G Hammad
- National Centre for Radiation Research & Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Ahmed El-Zomor St. 3, El-Zohoor Dist., Nasr City, Cairo 11765, Egypt
| | - Marwa G El-Gazzar
- National Centre for Radiation Research & Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Ahmed El-Zomor St. 3, El-Zohoor Dist., Nasr City, Cairo 11765, Egypt.
| | - Nader S Abutaleb
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN 47907, USA
| | - Daoyi Li
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN 47907, USA
| | - Isabell Ramming
- Helmholtz Center for Infection Research, WG Compound Profiling and Screening (COPS), Inhoffenstr. 7, 38124 Braunschweig, Germany
| | - Aditya Shekhar
- Helmholtz Center for Infection Research, WG Compound Profiling and Screening (COPS), Inhoffenstr. 7, 38124 Braunschweig, Germany
| | - Mohammad Abdel-Halim
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt
| | - Eman Z Elrazaz
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ain-Shams University, Abbassia, Cairo 11566, Egypt
| | - Mohamed N Seleem
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN 47907, USA; Purdue Institute of Inflammation, Immunology, and Infectious Diseases, West Lafayette, IN 47907, USA
| | - Ursula Bilitewski
- Helmholtz Center for Infection Research, WG Compound Profiling and Screening (COPS), Inhoffenstr. 7, 38124 Braunschweig, Germany
| | - Khaled A M Abouzid
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ain-Shams University, Abbassia, Cairo 11566, Egypt; Department of Organic and Medicinal Chemistry, Faculty of Pharmacy, University of Sadat City, Menoufia, Egypt.
| | - Ebaa M El-Hossary
- National Centre for Radiation Research & Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Ahmed El-Zomor St. 3, El-Zohoor Dist., Nasr City, Cairo 11765, Egypt
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Konreddy AK, Rani GU, Lee K, Choi Y. Recent Drug-Repurposing-Driven Advances in the Discovery of Novel Antibiotics. Curr Med Chem 2019; 26:5363-5388. [PMID: 29984648 DOI: 10.2174/0929867325666180706101404] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 04/26/2018] [Accepted: 05/03/2018] [Indexed: 12/18/2022]
Abstract
Drug repurposing is a safe and successful pathway to speed up the novel drug discovery and development processes compared with de novo drug discovery approaches. Drug repurposing uses FDA-approved drugs and drugs that failed in clinical trials, which have detailed information on potential toxicity, formulation, and pharmacology. Technical advancements in the informatics, genomics, and biological sciences account for the major success of drug repurposing in identifying secondary indications of existing drugs. Drug repurposing is playing a vital role in filling the gap in the discovery of potential antibiotics. Bacterial infections emerged as an ever-increasing global public health threat by dint of multidrug resistance to existing drugs. This raises the urgent need of development of new antibiotics that can effectively fight multidrug-resistant bacterial infections (MDRBIs). The present review describes the key role of drug repurposing in the development of antibiotics during 2016-2017 and of the details of recently FDA-approved antibiotics, pipeline antibiotics, and antibacterial properties of various FDA-approved drugs of anti-cancer, anti-fungal, anti-hyperlipidemia, antiinflammatory, anti-malarial, anti-parasitic, anti-viral, genetic disorder, immune modulator, etc. Further, in view of combination therapies with the existing antibiotics, their potential for new implications for MDRBIs is discussed. The current review may provide essential data for the development of quick, safe, effective, and novel antibiotics for current needs and suggest acuity in its effective implications for inhibiting MDRBIs by repurposing existing drugs.
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Affiliation(s)
- Ananda Kumar Konreddy
- College of Life Sciences and Biotechnology, Korea University, Seoul 136- 713, South Korea
| | - Grandhe Usha Rani
- College of Pharmacy, Dongguk University-Seoul, Goyang 410-820, South Korea
| | - Kyeong Lee
- College of Pharmacy, Dongguk University-Seoul, Goyang 410-820, South Korea
| | - Yongseok Choi
- College of Life Sciences and Biotechnology, Korea University, Seoul 136- 713, South Korea
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Figueiredo EP, Ribeiro JM, Nishio EK, Scandorieiro S, Costa AF, Cardozo VF, Oliveira AG, Durán N, Panagio LA, Kobayashi R, Nakazato G. New Approach For Simvastatin As An Antibacterial: Synergistic Effect With Bio-Synthesized Silver Nanoparticles Against Multidrug-Resistant Bacteria. Int J Nanomedicine 2019; 14:7975-7985. [PMID: 31632012 PMCID: PMC6781849 DOI: 10.2147/ijn.s211756] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 07/29/2019] [Indexed: 02/01/2023] Open
Abstract
Background Multidrug-resistant bacteria such as extended-spectrum beta-lactamase (ESBL), Enterobacteriaceae, and methicillin-resistant Staphylococcus aureus (MRSA) pose a challenge to the human health care system. MRSA is among the major causes of hospital-acquired and community infections. Methods Therefore, in the present study, we evaluated the antibacterial activity of silver nanoparticles synthesized by Fusarium oxysporum (AgNPbio) in combination with simvastatin against reference and multidrug-resistant bacterial strains. Results Simvastatin showed a minimal inhibitory concentration (MIC) ranging from 0.062 to 0.25 mg mL−1 against MRSA. AgNPbio with a size of 77.68± 33.95 nm and zeta potential −34.6 ± 12.7 mV showed an MIC of 0.212 mg mL−1 against S. aureus including MRSA strains. The checkerboard assay and time-kill curves exhibited a synergistic effect of the simvastatin-AgNPbio combination on antibacterial activity against MRSA strains. The combination of simvastatin and AgNPbio demonstrated antibacterial activity against Escherichia coli producing ESBL. Scanning electron microscopy showed the formation of cell surface protrusions after treatment with AgNPbio and the formation of a large amorphous mass after treatment with simvastatin, both in MRSA. Conclusion Our results indicate that the combination of AgNPbio and simvastatin could be a great future alternative in the control of bacterial infections, where, when combined with simvastatin, smaller doses of AgNPbio are required, with the same antibacterial activity.
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Affiliation(s)
- E P Figueiredo
- Department of Microbiology, Center of Biological Sciences, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - J M Ribeiro
- Department of Microbiology, Center of Biological Sciences, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - E K Nishio
- Department of Microbiology, Center of Biological Sciences, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - S Scandorieiro
- Department of Microbiology, Center of Biological Sciences, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - A F Costa
- NanoBioss, Institute of Chemistry, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
| | - V F Cardozo
- Department of Microbiology, Center of Biological Sciences, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - A G Oliveira
- Department of Microbiology, Center of Biological Sciences, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - N Durán
- NanoBioss, Institute of Chemistry, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil.,Institute of Chemistry, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil.,LNNano (National Laboratory of Nanotecnology), CNPEM, Campinas, São Paulo, Brazil
| | - L A Panagio
- Department of Microbiology, Center of Biological Sciences, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - Rkt Kobayashi
- Department of Microbiology, Center of Biological Sciences, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - G Nakazato
- Department of Microbiology, Center of Biological Sciences, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
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46
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Hua X, Jia Y, Yang Q, Zhang W, Dong Z, Liu S. Transcriptional Analysis of the Effects of Gambogic Acid and Neogambogic Acid on Methicillin-Resistant Staphylococcus aureus. Front Pharmacol 2019; 10:986. [PMID: 31572177 PMCID: PMC6753875 DOI: 10.3389/fphar.2019.00986] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 07/31/2019] [Indexed: 11/13/2022] Open
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) infection is a major threat to human health, as this bacterium has developed resistance to a variety of conventional antibiotics. This is especially true of MRSA biofilms, which not only exhibit enhanced pathogenicity but also are resistant to most antibiotics. In this work, we demonstrated that two natural products with antitumor activity, namely, gambogic acid (GA) and neogambogic acid (NGA), have significant inhibitory activity toward MRSA. GA and NGA can not only effectively inhibit planktonic MRSA strains in vivo and in vitro, but also have strong inhibitory effects on MRSA biofilms formation. By transcriptome sequencing, Q-RT-PCR and PRM, we found that GA and NGA could reduce the expression of S. aureus virulence factors by inhibiting the saeRS two-component, thus achieving inhibition of MRSA. We found that GA and NGA had anti-MRSA activity in vivo and in vitro and identified saeRS to be the target, indicating that saeRS inhibitors may be used to treat biofilm-related infections.
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Affiliation(s)
- Xin Hua
- Division of Bacterial Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China.,College of Life Science, Northeast Forestry University, Harbin, China
| | - Yue Jia
- Division of Bacterial Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Qin Yang
- Division of Bacterial Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Wanjiang Zhang
- Division of Bacterial Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Zhimin Dong
- Innovation Team of Livestock and Poultry Epidemic Disease Prevention and Control, Tianjin Animal Science and Veterinary Research Institute, Tianjin, China
| | - Siguo Liu
- Division of Bacterial Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
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47
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Andrade JT, Alves SLG, Lima WG, Sousa CDF, Carmo LF, De Sá NP, Morais FB, Johann S, Villar JAFP, Ferreira JMS. Pharmacologic potential of new nitro-compounds as antimicrobial agents against nosocomial pathogens: design, synthesis, and in vitro effectiveness. Folia Microbiol (Praha) 2019; 65:393-405. [PMID: 31401762 DOI: 10.1007/s12223-019-00747-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Accepted: 07/29/2019] [Indexed: 11/24/2022]
Abstract
Nosocomial infections are an important cause of morbi-mortality worldwide. The increase in the rate of resistance to conventional drugs in these microorganisms has stimulated the search for new therapeutic options. The nitro moiety (NO2) is an important pharmacophore of molecules with high anti-infective activity. We aimed to synthesize new nitro-derivates and to evaluate their antibacterial and anti-Candida potential in vitro. Five compounds [3-nitro-2-phenylchroman-4-ol (3); 3-nitro-2-phenyl-2H-chromene (4a); 3-nitro-2-(4-chlorophenyl)-2H-chromene (4b); 3-nitro-2-(4-fluorophenyl)-2H-chromene (4c), and 3-Nitro-2-(2,3-dichlorophenyl)-2H-chromene (4d)] were efficiently synthesized by Michael-aldol reaction of 2-hydroxybenzaldehyde with nitrostyrene, resulting in one β-nitro-alcohol (3) and four nitro-olefins (4a-4d). The antibacterial and anti-Candida potentials were evaluated by assaying minimal inhibitory concentration (MIC), minimum fungicidal concentration (MFC), and minimum bactericidal concentration (MBC). Mono-halogenated nitro-compounds (4b and 4c) showed anti-staphylococcal activity with MIC values of 15.6-62.5 μg/mL and MBC of 62.5 μg/mL. However, the activity against Gram-negative strains was showed to be considerably lower and our data suggests that this effect was associated with the outer membrane. Furthermore, nitro-compounds 4c and 4d presented activity against Candida spp. with MIC values ranging from 7.8-31.25 μg/mL and MFC of 15.6-500 μg/mL. In addition, these compounds were able to induce damage in fungal cells increasing the release of intracellular material, which was associated with actions on the cell wall independent of quantitative changes in chitin and β-glucan. Together, these findings show that nitro-compounds can be exploited as anti-staphylococcal and anti-Candida prototypes.
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Affiliation(s)
- Jéssica Tauany Andrade
- Laboratório de Microbiologia Médica, Universidade Federal de São João del-Rei (UFSJ), Campus Centro Oeste Dona Lindu/Universidade Federal de São João Del-Rei. Rua Sebastião Gonçalves Coelho, 400, Chanadour, Divinópolis, Minas Gerais, 35501-293, Brazil
| | - Silmara Lucia Grego Alves
- Laboratório de Síntese Orgânica e Nanoestruturas, Universidade Federal de São João del-Rei (UFSJ) - Campus Centro Oeste Dona Lindu, Divinópolis, Minas Gerais, Brazil
| | - William Gustavo Lima
- Laboratório de Microbiologia Médica, Universidade Federal de São João del-Rei (UFSJ), Campus Centro Oeste Dona Lindu/Universidade Federal de São João Del-Rei. Rua Sebastião Gonçalves Coelho, 400, Chanadour, Divinópolis, Minas Gerais, 35501-293, Brazil
| | - Carla Daiane Ferreira Sousa
- Laboratório de Microbiologia Médica, Universidade Federal de São João del-Rei (UFSJ), Campus Centro Oeste Dona Lindu/Universidade Federal de São João Del-Rei. Rua Sebastião Gonçalves Coelho, 400, Chanadour, Divinópolis, Minas Gerais, 35501-293, Brazil
| | - Lucas Fernandes Carmo
- Laboratório de Síntese Orgânica e Nanoestruturas, Universidade Federal de São João del-Rei (UFSJ) - Campus Centro Oeste Dona Lindu, Divinópolis, Minas Gerais, Brazil
| | - Nívea Pereira De Sá
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Fernanda Barbara Morais
- Laboratório de Microbiologia Médica, Universidade Federal de São João del-Rei (UFSJ), Campus Centro Oeste Dona Lindu/Universidade Federal de São João Del-Rei. Rua Sebastião Gonçalves Coelho, 400, Chanadour, Divinópolis, Minas Gerais, 35501-293, Brazil
| | - Susana Johann
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - José Augusto Ferreira Perez Villar
- Laboratório de Síntese Orgânica e Nanoestruturas, Universidade Federal de São João del-Rei (UFSJ) - Campus Centro Oeste Dona Lindu, Divinópolis, Minas Gerais, Brazil
| | - Jaqueline Maria Siqueira Ferreira
- Laboratório de Microbiologia Médica, Universidade Federal de São João del-Rei (UFSJ), Campus Centro Oeste Dona Lindu/Universidade Federal de São João Del-Rei. Rua Sebastião Gonçalves Coelho, 400, Chanadour, Divinópolis, Minas Gerais, 35501-293, Brazil.
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48
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Ma LL, Qiu Y, Song MN, Chen Y, Qu JX, Li BH, Zhao MJ, Liu XC. Clinical Trial Registration and Reporting: Drug Therapy and Prevention of Cardiac-Related Infections. Front Pharmacol 2019; 10:757. [PMID: 31333470 PMCID: PMC6624234 DOI: 10.3389/fphar.2019.00757] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 06/11/2019] [Indexed: 12/18/2022] Open
Abstract
Objective: Clinical trials are the source of evidence. ClinicalTrials.gov is valuable for analyzing current conditions. Until now, the state of drug interventions for heart infections is unknown. The purpose of this study was to comprehensively assess the characteristics of trials on cardiac-related infections and the status of drug interventions. Methods: The website ClinicalTrials.gov was used to obtain all registered clinical trials on drug interventions for cardiac-related infections as of February 16, 2019. All registration studies were collected, regardless of their recruitment status, research results, and research type. Registration information, results, and weblink-publications of those trials were analyzed. Results: A total of 45 eligible trials were evaluated and 86.7% of them began from or after 2008 while 91.1% of them adopted interventional study design. Of all trials, 35.6% were completed and 15.6% terminated. Besides, 62.2% of interventional clinical trials recruited more than 100 subjects. Meanwhile, 86.7% of the eligible trials included adult subjects only. Of intervention trials, 65.8% were in the third or fourth phase; 78.1% adopted randomized parallel assignment, containing two groups; 53.6% were masking, and 61.0% described treatment. Moreover, 41.5% of the trials were conducted in North America while 29.3% in Europe. Sponsors for 40.0% of the studies were from the industry. Furthermore, 48.9% of the trials mentioned information on monitoring committees, 24.4% have been published online, and 13.3% have uploaded their results. Drugs for treatments mainly contained antibiotics, among which glycopeptides, β-lactams, and lipopeptides were the most commonly studied ones in experimental group, with the former ones more common. Additionally, 16.2% of the trials evaluated new antimicrobials. Conclusions: Most clinical trials on cardiac-related infections registered at ClinicalTrials.gov were interventional randomized controlled trials (RCTs) for treatment. Most drugs focused in trials were old antibiotics, and few trials reported valid results. It is necessary to strengthen supervision over improvements in results, and to combine antibacterial activity with drug delivery regimens to achieve optimal clinical outcomes.
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Affiliation(s)
- Lin-Lu Ma
- Department of Cardiology, First Affiliated Hospital of Henan University of Traditional Chinese Medicine, Zhengzhou, China.,Center for Evidence-Based and Translational Medicine, Henan University of Traditional Chinese Medicine, Zhengzhou, China
| | - Yang Qiu
- Cardiovascular Department, Kaifeng Central Hospital, Kaifeng, China
| | - Mei-Na Song
- Department of Nursing, Beijing Tsinghua Changgung Hospital, Beijing, China
| | - Yun Chen
- Department of Cardiology, First Affiliated Hospital of Henan University of Traditional Chinese Medicine, Zhengzhou, China.,Center for Evidence-Based and Translational Medicine, Henan University of Traditional Chinese Medicine, Zhengzhou, China
| | - Jian-Xin Qu
- Department of Cardiology, First Affiliated Hospital of Henan University of Traditional Chinese Medicine, Zhengzhou, China.,Center for Evidence-Based and Translational Medicine, Henan University of Traditional Chinese Medicine, Zhengzhou, China
| | - Bing-Hui Li
- Center for Evidence-Based Medicine, Institute of Evidence-Based Medicine and Knowledge Translation, Henan University, Kaifeng, China
| | - Ming-Juan Zhao
- Center for Evidence-Based Medicine, Institute of Evidence-Based Medicine and Knowledge Translation, Henan University, Kaifeng, China.,Department of Cardiology, The First Affiliated Hospital of Henan University, Kaifeng, China
| | - Xin-Can Liu
- Department of Cardiology, First Affiliated Hospital of Henan University of Traditional Chinese Medicine, Zhengzhou, China.,Center for Evidence-Based and Translational Medicine, Henan University of Traditional Chinese Medicine, Zhengzhou, China
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Cao R, Li Q, Chen Y, Yao M, Wu Q, Zhou H. Efficacy of locally-delivered statins adjunct to non-surgical periodontal therapy for chronic periodontitis: a Bayesian network analysis. BMC Oral Health 2019; 19:105. [PMID: 31196047 PMCID: PMC6567452 DOI: 10.1186/s12903-019-0789-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 05/20/2019] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Studies indicate locally-delivered statins offer additional benefits to scaling and root planning (SRP), however, it is still hard to say which type of statins is better. This network meta-analysis aimed to assess the effect of locally-delivered statins and rank the most efficacious statin for treating chronic periodontitis (CP) in combination with SRP. METHODS We screened four literature databases (Pubmed, Embase, Cochrane Library, and Web of Science) for randomized controlled clinical trials (RCTs) published up to June 2018 that compared different statins in the treatment of chronic periodontitis. The outcomes analyzed were changes in intrabony defect depth (IBD), pocket depth (PD), and clinical attachment level (CAL). We carried out Bayesian network meta-analysis of CP without systemic diseases. Traditional and Bayesian network meta-analyses were conducted using random-effects models. RESULTS Greater filling of IBD, reduction in PD, and gain in CAL were observed for SRP treated in combination with statins when compared to SRP alone for treating CP without systemic diseases. Specifically, SRP+ Atorvastatin (ATV) (mean difference [MD]: 1.5 mm, 1.4 mm, 1.8 mm, respectively), SRP + Rosuvastatin (RSV) (MD: 1.8 mm, 2.0 mm, 2.1 mm, respectively), and SRP + Simvastatin (SMV) (MD: 1.1 mm, 2.2 mm, 2.1 mm, respectively) were identified. However, no difference was found among the statins tested. In CP patients with type 2 diabetic (T2DM) or in smokers, additional benefits were observed from locally delivered statins. CONCLUSION Local statin use adjunctive to SRP confers additional benefits in treating CP by SRP, even in T2DM and smokers. RSV may be the best one to fill in IBD. However, considering the limitations of this study, clinicians must use cautious when applying the results and further studies are required to explore the efficacy of statins in CP with or without the risk factors (T2DM comorbidity or smoking history).
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Affiliation(s)
- Ruoyan Cao
- Department of Prosthodontics, Xiangya Stomatological Hospital & School of Stomatology, Central South University, 72 Xiangya Road, Changsha, 410000 China
| | - Qiulan Li
- Department of Stomatology, The Second Xiangya Hospital, Central South University, 139 Middle Renmin Road, Changsha, 410011 China
| | - Yu Chen
- Department of Prosthodontics, Xiangya Stomatological Hospital & School of Stomatology, Central South University, 72 Xiangya Road, Changsha, 410000 China
| | - Mianfeng Yao
- Department of Oral Medicine, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410083 China
| | - Qiqi Wu
- Department of Operative Dentistry and Endodontics, Stomatological Hospital & School of Stomatology, Central South University, 72 Xiangya Road, Changsha, 410000 China
| | - Hongbo Zhou
- Department of Prosthodontics, Xiangya Stomatological Hospital & School of Stomatology, Central South University, 72 Xiangya Road, Changsha, 410000 China
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50
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Kumari N, Singh S, Kumari V, Kumar S, Kumar V, Kumar A. Ouabain potentiates the antimicrobial activity of aminoglycosides against Staphylococcus aureus. Altern Ther Health Med 2019; 19:119. [PMID: 31170971 PMCID: PMC6554875 DOI: 10.1186/s12906-019-2532-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 05/29/2019] [Indexed: 01/30/2023]
Abstract
Background Staphylococcus aureus is a notorious pathogen which often causes nosocomial and community attained infections. These infections steadily increased after evolving the resistance due to indecorous practice of antibiotics and now become a serious health issue. Ouabain is a Na+/K+-ATPase inhibitor that leads to increase the heart contraction in patients with congestive heart failure. Methods In the present study, in vitro antimicrobial effect of ouabain together with aminoglycosides was determined against clinical and non-clinical S. aureus strains. Using checkerboard, Gentamycin uptake and biofilm assays, we analysed he interactions of ouabain with aminoglycosides. Results Ouabain induced the staphylocidal potency of aminoglycosides by remarkably reducing the MIC of gentamycin (GEN) by 16 (0.25 μg/mL), 8 folds (0.5 μg/mL) amikacin (AMK); and 16 folds (1.0 μg/mL) with kanamycin (KAN), compared to their individual doses. OBN severely reduced cell viability within 60 min with GEN (1 μg/mL), KAN (2 μg/mL) and 90 min with AMK (1 μg/mL). This bactericidal effect was enhanced due to GEN uptake potentiated by 66% which led to increase the cell permeability as revealed by leakage of bacterial ATP and nitrocefin assay. The biofilm adherence disrupted by 80 and 50% at 5 mg/mL and 1.5 mg/mL OBN and 50 and 90% biofilm formation was inhibited at 5 mg/mL (MBIC50) and 10 mg/mL (MBIC90), respectively. Moreover, OBN with GEN further induced biofilm inhibition by 67 ± 5% at pH 7.0. Conclusions Taken together, we established that OBN synergizes the antimicrobial activity of aminoglycosides that induces cell killing due to intracellular accumulation of GEN by disturbing cell homeostasis. It may be proven an effective approach for the treatment of staphylococcal infections.
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