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Fathi-Karkan S, Amiri Ramsheh N, Arkaban H, Narooie-Noori F, Sargazi S, Mirinejad S, Roostaee M, Sargazi S, Barani M, Malahat Shadman S, Althomali RH, Rahman MM. Nanosuspensions in ophthalmology: Overcoming challenges and enhancing drug delivery for eye diseases. Int J Pharm 2024; 658:124226. [PMID: 38744414 DOI: 10.1016/j.ijpharm.2024.124226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 04/30/2024] [Accepted: 05/11/2024] [Indexed: 05/16/2024]
Abstract
This review article provides a comprehensive overview of the advancements in using nanosuspensions for controlled drug delivery in ophthalmology. It highlights the significance of ophthalmic drug delivery due to the prevalence of eye diseases and delves into various aspects of this field. The article explores molecular mechanisms, drugs used, and physiological factors affecting drug absorption. It also addresses challenges in treating both anterior and posterior eye segments and investigates the role of mucus in obstructing micro- and nanosuspensions. Nanosuspensions are presented as a promising approach to enhance drug solubility and absorption, covering formulation, stability, properties, and functionalization. The review discusses the pros and cons of using nanosuspensions for ocular drug delivery and covers their structure, preparation, characterization, and applications. Several graphical representations illustrate their role in treating various eye conditions. Specific drug categories like anti-inflammatory drugs, antihistamines, glucocorticoids, and more are discussed in detail, with relevant studies. The article also addresses current challenges and future directions, emphasizing the need for improved nanosuspension stability and exploring potential technologies. Nanosuspensions have shown substantial potential in advancing ophthalmic drug delivery by enhancing solubility and absorption. This article is a valuable resource for researchers, clinicians, and pharmaceutical professionals in this field, offering insights into recent developments, challenges, and future prospects in nanosuspension use for ocular drug delivery.
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Affiliation(s)
- Sonia Fathi-Karkan
- Natural Products and Medicinal Plants Research Center, North Khorasan University of Medical Sciences, Bojnurd 94531-55166, Iran; Department of Advanced Sciences and Technologies in Medicine, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd 9414974877, Iran.
| | - Nasim Amiri Ramsheh
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, 16846, Tehran, Iran.
| | - Hasan Arkaban
- Department of Chemistry, University of Isfahan, Isfahan 8174673441, Iran.
| | - Foroozan Narooie-Noori
- Optometry Department, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran.
| | - Sara Sargazi
- Cellular and Molecular Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan University of Medical Sciences, Zahedan, Iran.
| | - Shekoufeh Mirinejad
- Cellular and Molecular Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan University of Medical Sciences, Zahedan, Iran.
| | - Maryam Roostaee
- Department of Chemistry, Faculty of Sciences, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran.
| | - Saman Sargazi
- Cellular and Molecular Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan University of Medical Sciences, Zahedan, Iran; Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran.
| | - Mahmood Barani
- Department of Chemistry, Faculty of Nano and Bio Science and Technology, Persian Gulf University, Bushehr 75168, Iran.
| | | | - Raed H Althomali
- Department of Chemistry, College of Art and Science, Prince Sattam bin Abdulaziz University, Wadi Al-Dawasir 11991, Al Kharj, Saudi Arabia.
| | - Mohammed M Rahman
- Center of Excellence for Advanced Materials Research (CEAMR) & Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
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Drzyzga Ł, Śpiewak D, Dorecka M, Wyględowska-Promieńska D. Available Therapeutic Options for Corneal Neovascularization: A Review. Int J Mol Sci 2024; 25:5479. [PMID: 38791518 PMCID: PMC11121997 DOI: 10.3390/ijms25105479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 05/07/2024] [Accepted: 05/15/2024] [Indexed: 05/26/2024] Open
Abstract
Corneal neovascularization can impair vision and result in a poor quality of life. The pathogenesis involves a complex interplay of angiogenic factors, notably vascular endothelial growth factor (VEGF). This review provides a comprehensive overview of potential therapies for corneal neovascularization, covering tissue inhibitors of metalloproteinases (TIMPs), transforming growth factor beta (TGF-β) inhibitors, interleukin-1L receptor antagonist (IL-1 Ra), nitric oxide synthase (NOS) isoforms, galectin-3 inhibitors, retinal pigment epithelium-derived factor (PEDF), platelet-derived growth factor (PDGF) receptor inhibitors, and surgical treatments. Conventional treatments include anti-VEGF therapy and laser interventions, while emerging therapies such as immunosuppressive drugs (cyclosporine and rapamycin) have been explored. Losartan and decorin are potential antifibrotic agents that mitigate TGF-β-induced fibrosis. Ocular nanosystems are innovative drug-delivery platforms that facilitate the targeted release of therapeutic agents. Gene therapies, such as small interfering RNA and antisense oligonucleotides, are promising approaches for selectively inhibiting angiogenesis-related gene expression. Aganirsen is efficacious in reducing the corneal neovascularization area without significant adverse effects. These multifaceted approaches underscore the corneal neovascularization management complexity and highlight ideas for enhancing therapeutic outcomes. Furthermore, the importance of combination therapies and the need for further research to develop specific inhibitors while considering their therapeutic efficacy and potential adverse effects are discussed.
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Affiliation(s)
- Łukasz Drzyzga
- Department of Ophthalmology, Prof. K. Gibiński University Clinical Center, Medical University of Silesia, 40-055 Katowice, Poland
- Clinical Ophthalmology Center Okolux, 40-754 Katowice, Poland
| | - Dorota Śpiewak
- Department of Ophthalmology, Prof. K. Gibiński University Clinical Center, Medical University of Silesia, 40-055 Katowice, Poland
- Clinical Ophthalmology Center Okolux, 40-754 Katowice, Poland
| | - Mariola Dorecka
- Department of Ophthalmology, Prof. K. Gibiński University Clinical Center, Medical University of Silesia, 40-055 Katowice, Poland
- Department of Ophthalmology, Faculty of Medical Sciences in Katowice, Medical University of Silesia, 40-514 Katowice, Poland
| | - Dorota Wyględowska-Promieńska
- Department of Ophthalmology, Prof. K. Gibiński University Clinical Center, Medical University of Silesia, 40-055 Katowice, Poland
- Department of Ophthalmology, Faculty of Medical Sciences in Katowice, Medical University of Silesia, 40-514 Katowice, Poland
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Wu D, Chan KE, Lim BXH, Lim DKA, Wong WM, Chai C, Manotosh R, Lim CHL. Management of corneal neovascularization: Current and emerging therapeutic approaches. Indian J Ophthalmol 2024; 72:S354-S371. [PMID: 38648452 DOI: 10.4103/ijo.ijo_3043_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 12/25/2023] [Indexed: 04/25/2024] Open
Abstract
Corneal neovascularization (CoNV) is a sight-threatening condition affecting an estimated 1.4 million people per year, and the incidence is expected to rise. It is a complication of corneal pathological diseases such as infective keratitis, chemical burn, corneal limbal stem cell deficiency, mechanical trauma, and immunological rejection after keratoplasties. CoNV occurs due to a disequilibrium in proangiogenic and antiangiogenic mediators, involving a complex system of molecular interactions. Treatment of CoNV is challenging, and no therapy thus far has been curative. Anti-inflammatory agents such as corticosteroids are the mainstay of treatment due to their accessibility and well-studied safety profile. However, they have limited effectiveness and are unable to regress more mature neovascularization. With the advent of advanced imaging modalities and an expanding understanding of its pathogenesis, contemporary treatments targeting a wide array of molecular mechanisms and surgical options are gaining traction. This review aims to summarize evidence regarding conventional and emerging therapeutic options for CoNV.
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Affiliation(s)
- Duoduo Wu
- Department of Ophthalmology, National University Hospital, Singapore
| | - Kai En Chan
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Blanche Xiao Hong Lim
- Department of Ophthalmology, National University Hospital, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Dawn Ka-Ann Lim
- Department of Ophthalmology, National University Hospital, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Wendy Meihua Wong
- Department of Ophthalmology, National University Hospital, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Charmaine Chai
- Department of Ophthalmology, National University Hospital, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Ray Manotosh
- Department of Ophthalmology, National University Hospital, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Chris Hong Long Lim
- Department of Ophthalmology, National University Hospital, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- School of Optometry and Vision Science, University of New South Wales, Sydney, Australia
- Singapore Eye Research Institute, Singapore
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Lessiak U, Pratscher B, Tichy A, Nell B. Bevacizumab Efficiently Inhibits VEGF-Associated Cellular Processes in Equine Umbilical Vein Endothelial Cells: An In Vitro Characterization. Vet Sci 2023; 10:632. [PMID: 37999456 PMCID: PMC10675369 DOI: 10.3390/vetsci10110632] [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: 08/31/2023] [Revised: 10/06/2023] [Accepted: 10/22/2023] [Indexed: 11/25/2023] Open
Abstract
Anti-VEGF agents were found to have clinical implications for the successful treatment of vascular-driven diseases in humans. In this study, a detailed biological characterization of bevacizumab in a variety of in vitro assays was carried out to determine the effect of bevacizumab on equine umbilical vein endothelial cells (EqUVEC). EqUVECs were harvested from umbilical cords of clinically healthy horses and exposed to different concentrations (1, 2, 4, 6, 8 mg/mL) of bevacizumab (Avastin®). Assays concerning the drug's safety (cell viability and proliferation assay) and efficacy (cell tube formation assay, cell migration assay, and Vascular endothelial growth factor (VEGF) expression) were carried out reflecting multiple cellular processes. Bevacizumab significantly decreased VEGF expression at all concentrations over a 72 h period. No cytotoxic effect of bevacizumab on EqUVECs was observed at concentrations of 4 mg/mL bevacizumab or lower. Incubated endothelial cells showed delayed tube formation and bevacizumab efficiently inhibited cell migration in a dose-dependent manner. Bevacizumab potently inhibits VEGF-induced cellular processes and could be a promising therapeutic approach in vascular-driven diseases in horses.
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Affiliation(s)
- Ulrike Lessiak
- Department of Companion Animals and Horses, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210 Vienna, Austria
| | - Barbara Pratscher
- Department of Companion Animals and Horses, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210 Vienna, Austria
| | - Alexander Tichy
- Department of Biomedical Sciences, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210 Vienna, Austria
| | - Barbara Nell
- Department of Companion Animals and Horses, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210 Vienna, Austria
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Cai R, Zhang L, Chi H. Recent development of polymer nanomicelles in the treatment of eye diseases. Front Bioeng Biotechnol 2023; 11:1246974. [PMID: 37600322 PMCID: PMC10436511 DOI: 10.3389/fbioe.2023.1246974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 07/26/2023] [Indexed: 08/22/2023] Open
Abstract
The eye, being one of the most intricate organs in the human body, hosts numerous anatomical barriers and clearance mechanisms. This highlights the importance of devising a secure and efficacious ocular medication delivery system. Over the past several decades, advancements have been made in the development of a nano-delivery platform based on polymeric micelles. These advancements encompass diverse innovations such as poloxamer, chitosan, hydrogel-encapsulated micelles, and contact lenses embedded with micelles. Such technological evolutions allow for sustained medication retention and facilitate enhanced permeation within the eye, thereby standing as the avant-garde in ocular medication technology. This review provides a comprehensive consolidation of ocular medications predicated on polymer nanomicelles from 2014 to 2023. Additionally, it explores the challenges they pose in clinical applications, a discussion intended to aid the design of future clinical research concerning ocular medication delivery formulations.
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Affiliation(s)
- Ruijun Cai
- Department of Pharmacy, The People’s Hospital of Jiuquan, Jiuquan, Gansu, China
| | - Ling Zhang
- Department of Pharmacy, The People’s Hospital of Jiuquan, Jiuquan, Gansu, China
| | - Hao Chi
- Qingdao Municipal Hospital, University of Health and Rehabilitation Sciences, Qingdao, China
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Zhao J, Xiong J, Ning Y, Zhao J, Wang Z, Long L, He H, Gou J, Yin T, Tang X, Zhang Y. A triple crosslinked micelle-hydrogel lacrimal implant for localized and prolonged therapy of glaucoma. Eur J Pharm Biopharm 2023; 185:44-54. [PMID: 36841507 DOI: 10.1016/j.ejpb.2023.02.011] [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: 12/08/2022] [Revised: 02/05/2023] [Accepted: 02/20/2023] [Indexed: 02/27/2023]
Abstract
Glaucoma is a chronic disease that requires lifelong treatment, whereas, discomfort caused by frequent medication may affect the quality of life. Moreover, the therapeutic efficacy of traditional local administration was unsatisfactory due to the rapid ocular clearance mechanism and the ocular barrier. Herein, a triple crosslinked micelle-hydrogel lacrimal implant with low polymer content was fabricated for localized and prolonged therapy of glaucoma. Latanoprost and timolol were simultaneously entrapped in the PEG-PLA micelles with high encapsulation efficiency and further loaded into the triple crosslinked hydrogel, facilitating a double sustained release of drugs. Subsequently, the implant was constructed by a unique molecular orientation fixation technology, which enables the implant to be fixed in the lacrimal duct. The triple crosslinked micelle-hydrogel lacrimal implant manifested a distinguished physicochemical characterization to sustain the release of latanoprost and timolol. In vitro release experiment demonstrated the duration of two drugs was extended for up to 28 days. The in vivo test of elevated intraocular pressure (IOP) in a rabbit model revealed that the IOP-lowering effects were sustained longer than 28 days as expected. The relative pharmacological availability (PA) of lacrimal implants was 5.7 times greater than that of the eye drops. The results of the studies on ocular irritation and histological examination demonstrated the good safety of the lacrimal implant. In conclusion, the triple crosslinked micelle-hydrogel lacrimal implant could effectively lower the IOP with splendid compatibility, demonstrating the promising prospect in the long-term noninvasive treatment of glaucoma.
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Affiliation(s)
- Jingyi Zhao
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, China
| | - Jian Xiong
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, China
| | - Yun Ning
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, China
| | - Jiansong Zhao
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, China
| | - Zhipeng Wang
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, China
| | - Linhui Long
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, China
| | - Haibing He
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, China
| | - Jingxing Gou
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, China
| | - Tian Yin
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, China
| | - Xing Tang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, China
| | - Yu Zhang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, China.
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Addeen SZ, Oyoun Z, Alfhaily H, Anbari A. Outcomes of mitomycin C intravascular chemoembolization (MICE) in refractory corneal neovascularization after failed keratoplasty. Digit J Ophthalmol 2023; 29:9-13. [PMID: 37101562 PMCID: PMC10125729 DOI: 10.5693/djo.02.2023.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
Corneal neovascularization is a determinant of corneal graft survival and preservation of immune privilege after keratoplasty. We report the outcomes in 2 patients with failed corneal grafts who underwent mitomycin C (MMC) intravascular chemoembolization (MICE) in the affected eye. A 30-year-old woman with failed penetrating keratoplasty (PK) in the right eye was started on prednisolone acetate eyedrops. Graft sutures were removed, and bevacizumab was injected subconjunctivally. The eye remained intermittently painful, and MICE was performed on the main feeding vessel, with regression of the vessels apparent within the first day following the procedure. The second case was a 40-year-old man who had a history of repaired penetrating injury in the left eye followed by failed PK. Prednisolone acetate eyedrops were initiated, and corneal sutures were removed. The patient failed to improve with three subconjunctival injections of bevacizumab. MICE was performed, but in this case neovascularization did not regress until 20 weeks post-procedure. MMC is thought to inhibit vascular endothelial cell proliferation, but its use in corneal injection is debated. In these cases, MICE was not associated with any concerning adverse events.
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Affiliation(s)
- Sarah Zaher Addeen
- Department of Ophthalmology, Al Mouassat University Hospital, Damascus University, Damascus, Syria
- Correspondence: Sarah Zaher Addeen MD, FICO ()
| | - Ziad Oyoun
- Department of Ophthalmology, Al Mouassat University Hospital, Damascus University, Damascus, Syria
| | | | - Anas Anbari
- Department of Ophthalmology, Al Mouassat University Hospital, Damascus University, Damascus, Syria
- Department of Ophthalmology, Eastbourne District General Hospital, Eastbourne, United Kingdom
- Ophthalmology Unit, Kuwait Oil Company Hospital, Kuwait, Kuwait
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Bukhari KA, Khan IA, Ishaq S, Iqbal MO, Alqahtani AM, Alqahtani T, Menaa F. Formulation and Evaluation of Diclofenac Potassium Gel in Sports Injuries with and without Phonophoresis. Gels 2022; 8:612. [PMID: 36286113 PMCID: PMC9601609 DOI: 10.3390/gels8100612] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 09/15/2022] [Accepted: 09/20/2022] [Indexed: 08/30/2023] Open
Abstract
Background: Pain remains a global public heath priority. Phonophoresis, also known as sonophoresis or ultrasonophoresis, is when an ultrasound is used to maximize the effects of a topical drug. Purpose: The objective of this study was to test, in patients injured in sports or accidents (N = 200), the efficacy of diclofenac potassium (DK) 6%, 4%, and 2% formulated gels with and without phonophoresis in comparison with market available standard diclofenac sodium (DS or DN) gel. Methods: The patients were enrolled after informed consent. By using the lottery method, 100 patients were randomly segregated into five groups without phonophoresis and repeated similarly with phonophoresis at a frequency of 0.8 MHz, an intensity of about 1.5 W/cm2, and at continuous mode (2:1). Group-1 was treated with 6% DK gel, group-2 was treated with 4% DK gel, group-3 was treated with 2% DK gel, group-4 was treated with 4% DS gel and group-5 was given control gel three to four times a week for 4 weeks. The patients were screened by using NPRS and WOMAC scales. They were assessed on the baseline, 4th session, 8th session, 12th session, and 16th session. Results: Significant dose-dependently relief was observed in NPRS (Numeric Pain Rating Scale) and the WOMAC (Western Ontario McMaster Osteo-Arthritis) index for pain in disability and stiffness for each group treated with DK gel compared to DS gel. Phonophoresis increased these benefits significantly when used after topical application of DK gel or DS gel, and the dose-dependent effects of DK gel plus phonophoresis were stronger than the dose-dependent effects of DS gel plus phonophoresis. The faster and profounder relief was due to phonophoresis, which allows more penetration of the DK gel into the skin as compared to the direct application of DK gel in acute, uncomplicated soft tissue injury, such as plantar fasciitis, bursitis stress injuries, and tendinitis. In addition, DK gel with phonophoresis was well tolerated. Thus, in this personalized clinical setting, according to the degree of inflammation or injured-induced pain, disability, and stiffness, DK gel 6% with phonophoresis appeared more effective and thus more recommendable than DS gel 6% alone or DS gel 6% combined to phonophoresis.
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Affiliation(s)
- Komal Ammar Bukhari
- Ali-Ul-Murtaza, Department of Rehabilitation Sciences, Muhammad Institute of Medical and Allied Sciences, Multan 60000, Pakistan
| | - Imran Ahmad Khan
- Ali-Ul-Murtaza, Department of Rehabilitation Sciences, Muhammad Institute of Medical and Allied Sciences, Multan 60000, Pakistan
- Department of Pharmacology and Physiology, MNS University of Agriculture, Multan 60000, Pakistan
| | - Shahid Ishaq
- Department of Rehabilitation, Bakhtawar Amin Medical and Dental College, Multan 60000, Pakistan
| | - Muhammad Omer Iqbal
- Shandong Provincial Key Laboratory of Glycoscience and Glycoengineering, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266100, China
- Royal Institute of Medical Sciences (RIMS), Multan 60000, Pakistan
| | - Ali M. Alqahtani
- Department of Pharmacology, College of Pharmacy, King Khalid University, Abha 62529, Saudi Arabia
| | - Taha Alqahtani
- Department of Pharmacology, College of Pharmacy, King Khalid University, Abha 62529, Saudi Arabia
| | - Farid Menaa
- Departments of Internal Medicine and Nanomedicine, California Innovations Corporation, San Diego, CA 92037, USA
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