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Zhao M, Zhou M, Lu P, Wang Y, Zeng R, Liu L, Zhu S, Kong L, Zhang J. Local anesthetic delivery systems for the management of postoperative pain. Acta Biomater 2024; 181:1-18. [PMID: 38679404 DOI: 10.1016/j.actbio.2024.04.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 03/29/2024] [Accepted: 04/23/2024] [Indexed: 05/01/2024]
Abstract
Postoperative pain (POP) is a major clinical challenge. Local anesthetics (LAs), including amide-type LAs, ester-type LAs, and other potential ion-channel blockers, are emerging as drugs for POP management because of their effectiveness and affordability. However, LAs typically exhibit short durations of action and prolonging the duration by increasing their dosage or concentration may increase the risk of motor block or systemic local anesthetic toxicity. In addition, techniques using LAs, such as intrathecal infusion, require professional operation and are prone to catheter displacement, dislodgement, infection, and nerve damage. With the development of materials science and nanotechnology, various LAs delivery systems have been developed to compensate for these disadvantages. Numerous delivery systems have been designed to continuously release a safe dose in a single administration to ensure minimal systemic toxicity and prolong pain relief. LAs delivery systems can also be designed to control the duration and intensity of analgesia according to changes in the external trigger conditions, achieve on-demand analgesia, and significantly improve pain relief and patient satisfaction. In this review, we summarize POP pathways, animal models and methods for POP testing, and highlight LAs delivery systems for POP management. STATEMENT OF SIGNIFICANCE: Postoperative pain (POP) is a major clinical challenge. Local anesthetics (LAs) are emerging as drugs for POP management because of their effectiveness and affordability. However, they exhibit short durations and toxicity. Various LAs delivery systems have been developed to compensate for these disadvantages. They have been designed to continuously release a safe dose in a single administration to ensure minimal toxicity and prolong pain relief. LAs delivery systems can also be designed to control the duration and intensity of analgesia to achieve on-demand analgesia, and significantly improve pain relief and patient satisfaction. In this paper, we summarize POP pathways, animal models, and methods for POP testing and highlight LAs delivery systems for POP management.
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Affiliation(s)
- Mingxu Zhao
- Department of Anesthesiology, The First Affiliated Hospital of Anhui Medical University, Key Laboratory of Anesthesia and Perioperative Medicine of Anhui Higher Education Institutes, Anhui Medical University, Hefei, 230032, China; Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230031, China
| | - Mengni Zhou
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China
| | - Pengcheng Lu
- Department of Anesthesiology, The First Affiliated Hospital of Anhui Medical University, Key Laboratory of Anesthesia and Perioperative Medicine of Anhui Higher Education Institutes, Anhui Medical University, Hefei, 230032, China
| | - Ying Wang
- Department of Anesthesiology, The First Affiliated Hospital of Anhui Medical University, Key Laboratory of Anesthesia and Perioperative Medicine of Anhui Higher Education Institutes, Anhui Medical University, Hefei, 230032, China
| | - Rong Zeng
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230031, China
| | - Lifang Liu
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230031, China
| | - Shasha Zhu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China.
| | - Lingsuo Kong
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230031, China.
| | - Jiqian Zhang
- Department of Anesthesiology, The First Affiliated Hospital of Anhui Medical University, Key Laboratory of Anesthesia and Perioperative Medicine of Anhui Higher Education Institutes, Anhui Medical University, Hefei, 230032, China.
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2
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Zhang Q, Liu X, Liu H, Li S, An Z, Feng Z. Construction of bupivacaine-loaded gelatin-based hydrogel delivery system for sciatic nerve block in mice. J Biomed Mater Res A 2024. [PMID: 38804067 DOI: 10.1002/jbm.a.37754] [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: 07/26/2023] [Revised: 05/07/2024] [Accepted: 05/14/2024] [Indexed: 05/29/2024]
Abstract
Peripheral nerve blockade (PNB) is a common treatment to relieve postoperative pain. However, local anesthetics alone have a short duration of action and severe side effects during postoperative analgesia. In order to overcome these limitations, the present study reported an injectable hydrogel with a drug slow-release profile for regional nerve blockade. The injectable hydrogel was prepared by crosslinking with gelatin and NHS-PEG-NHS, which was degradable in the physiological environment and displayed sustainable release of anesthetics locally, thus improving the disadvantage of the high toxicity of local anesthetics. In this regard, we conducted a series of in vitro characterizations and proved that the hydrogel has a porous three-dimensional mesh structure with high drug loading capability, and sustainable drug release profile. And cytotoxicity experiments confirmed the good biocompatibility of the hydrogel. It was shown that using the animal sciatic nerve block model, the analgesic effect was greatly improved in vivo, and there was no obvious evidence of permanent inflammation or nerve damage in the block site's sections. This locally slow-release platform, combined with local anesthetics, is therefore a promising contender for long-acting analgesia.
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Affiliation(s)
- Qunfei Zhang
- The Postgraduate Training Base of Jinzhou Medical University (Xiaogan Hospital Affiliated to Wuhan University of Science and Technology), Xiaogan, China
- Department of Anesthesiology, Xiaogan Hospital Affiliated to Wuhan University of Science and Technology, Xiaogan, China
| | - Xiang Liu
- Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, China
| | - Hongqiang Liu
- Department of Anesthesiology, Xiaogan Hospital Affiliated to Wuhan University of Science and Technology, Xiaogan, China
| | - Shufen Li
- Department of Anesthesiology, Xiaogan Hospital Affiliated to Wuhan University of Science and Technology, Xiaogan, China
| | - Zhenping An
- The Postgraduate Training Base of Jinzhou Medical University (Xiaogan Hospital Affiliated to Wuhan University of Science and Technology), Xiaogan, China
- Department of Anesthesiology, Xiaogan Hospital Affiliated to Wuhan University of Science and Technology, Xiaogan, China
| | - Zujian Feng
- Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, China
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3
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Getachew M, Tesfaye H, Yihunie W, Ayenew T, Alemu S, Dagnew EM, Biyazin Y, Abebe D, Degefu N, Abebaw A. Sustained release local anesthetics for pain management: relevance and formulation approaches. FRONTIERS IN PAIN RESEARCH 2024; 5:1383461. [PMID: 38645568 PMCID: PMC11026556 DOI: 10.3389/fpain.2024.1383461] [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: 02/07/2024] [Accepted: 03/22/2024] [Indexed: 04/23/2024] Open
Abstract
This review attempted to ascertain the rationale for the formulation of sustained-release local anesthetics and summarize the various formulation approaches designed to date to achieve sustained and localized local analgesic effects. The incidence of pain, which is the concern of patients as well as health care professionals, is increasing due to accidents, surgical procedures, and other diseases. Local anesthetics can be used for the management of moderate to severe acute and chronic pain. They also allow regional analgesia, in situations where the cause and source of the pain are limited to a particular site or region, without the need for loss of consciousness or systemic administration of other analgesics thereby decreasing the risk of potential toxicities. Though they have an interesting antipain efficacy, the short duration of action of local anesthetics makes the need for their multiple injections or opioid adjuvants mandatory. To overcome this problem, different formulations are being designed that help achieve prolonged analgesia with a single dose of administration. Combination with adjuvants, liposomal formulations, lipid-based nanoparticles, thermo-responsive nanogels, microspheres, microcapsules, complexation with multivalent counterions and HP-β-CD, lipid-based nanoparticles, and bio-adhesive films, and polymeric matrices are among the approaches. Further safety studies are required to ensure the safe and effective utilization of sustained-release local anesthetics. Moreover, the release kinetics of the various formulations should be adequately established.
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Affiliation(s)
- Melese Getachew
- Department of Pharmacy, College of Medicine and Health Sciences, Debre Markos University, Debre Markos, Ethiopia
| | - Hana Tesfaye
- School of Pharmacy, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Wubetu Yihunie
- Department of Pharmacy, College of Medicine and Health Sciences, Debre Markos University, Debre Markos, Ethiopia
| | - Tesfahun Ayenew
- Department of Nursing, College of Medicine and Health Sciences, Debre Markos University, Debre Markos, Ethiopia
| | - Sintayehu Alemu
- Department of Pharmaceutics, School of Pharmacy, Institute of Health, Jimma University, Jimma, Ethiopia
| | - Ephrem Mebratu Dagnew
- Department of Pharmacy, College of Medicine and Health Sciences, Debre Markos University, Debre Markos, Ethiopia
| | - Yalemgeta Biyazin
- Department of Pediatrics and Child Health Nursing, College of Medicine and Health Sciences, Debre Markos University, Debre Markos, Ethiopia
| | - Dehnnet Abebe
- Department of Pharmacy, College of Medicine and Health Sciences, Debre Markos University, Debre Markos, Ethiopia
| | - Natanim Degefu
- Department of Pharmaceutics, School of Pharmacy, College of Health and Medical Sciences, Haramaya University, Harar, Ethiopia
| | - Abtie Abebaw
- Department of Medical Laboratory Sciences, College of Medicine and Health Sciences, Debre Markos University, Debre Markos, Ethiopia
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4
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Li X, Tan TTY, Lin Q, Lim CC, Goh R, Otake KI, Kitagawa S, Loh XJ, Lim JYC. MOF-Thermogel Composites for Differentiated and Sustained Dual Drug Delivery. ACS Biomater Sci Eng 2023; 9:5724-5736. [PMID: 37729089 DOI: 10.1021/acsbiomaterials.3c01103] [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] [Indexed: 09/22/2023]
Abstract
In recent years, multidrug therapy has gained increasing popularity due to the possibility of achieving synergistic drug action and sequential delivery of different medical payloads for enhanced treatment efficacy. While a number of composite material release platforms have been developed, few combine the bottom-up design versatility of metal-organic frameworks (MOFs) to tailor drug release behavior, with the convenience of temperature-responsive hydrogels (or thermogels) in their unique ease of administration and formulation. Yet, despite their potential, MOF-thermogel composites have been largely overlooked for simultaneous multidrug delivery. Herein, we report the first systematic study of common MOFs (UiO-66, MIL-53(Al), MIL-100(Fe), and MOF-808) with different pore sizes, geometries, and hydrophobicities for their ability to achieve simultaneous dual drug release when embedded within PEG-containing thermogel matrices. After establishing that MOFs exert small influences on the rheological properties of the thermogels despite the penetration of polymers into the MOF pores in solution, the release profiles of ibuprofen and caffeine as model hydrophobic and hydrophilic drugs, respectively, from MOF-thermogel composites were investigated. Through these studies, we elucidated the important role of hydrophobic matching between MOF pores and loaded drugs in order for the MOF component to distinctly influence drug release kinetics. These findings enabled us to identify a viable MOF-thermogel composite containing UiO-66 that showed vastly different release kinetics between ibuprofen and caffeine, enabling temporally differentiated yet sustained simultaneous drug release to be achieved. Finally, the MOF-thermogel composites were shown to be noncytotoxic in vitro, paving the way for these underexploited composite materials to find possible clinical applications for multidrug therapy.
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Affiliation(s)
- Xin Li
- Laboratory for Green Porous Materials, Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Tristan T Y Tan
- Laboratory for Green Porous Materials, Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Qianyu Lin
- Laboratory for Green Porous Materials, Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Chen Chuan Lim
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road Jurong Island, Singapore 627833, Republic of Singapore
| | - Rubayn Goh
- Laboratory for Green Porous Materials, Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Ken-Ichi Otake
- Laboratory for Green Porous Materials, Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
- Institute for Integrated Cell-Material Sciences, Kyoto University Institute for Advanced Study, Kyoto University, Yoshida Ushinomiya-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Susumu Kitagawa
- Laboratory for Green Porous Materials, Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
- Institute for Integrated Cell-Material Sciences, Kyoto University Institute for Advanced Study, Kyoto University, Yoshida Ushinomiya-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Xian Jun Loh
- Laboratory for Green Porous Materials, Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road Jurong Island, Singapore 627833, Republic of Singapore
- Department of Materials Science and Engineering, National University of Singapore (NUS), 9 Engineering Drive, Singapore 117576, Republic of Singapore
| | - Jason Y C Lim
- Laboratory for Green Porous Materials, Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
- Department of Materials Science and Engineering, National University of Singapore (NUS), 9 Engineering Drive, Singapore 117576, Republic of Singapore
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Guo W, Cao D, Rao W, Sun T, Wei Y, Wang Y, Yu L, Ding J. Achieving Long-Acting Local Analgesia Using an Intelligent Hydrogel Encapsulated with Drug and pH Regulator. ACS APPLIED MATERIALS & INTERFACES 2023; 15:42113-42129. [PMID: 37639647 DOI: 10.1021/acsami.3c03149] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Local anesthetics are important for the treatment of postoperative pain. Since a single injection of the solution of a drug such as bupivacaine (BUP) works only for a few hours, it is much required to develop a long-term injectable formulation that maintains its efficacy for more than 1 day. Herein, an intelligent copolymer hydrogel loaded with BUP microcrystals was invented. The biodegradable block copolymer was synthesized by us and composed of a central hydrophilic poly(ethylene glycol) (PEG) block and two hydrophobic poly(lactide-co-glycolide) (PLGA) blocks. The aqueous system of the amphiphilic copolymer underwent a sol-gel transition between room temperature and body temperature and, thus, physically gelled after injection. Considering the decrease of solubility of BUP with the increase of pH and the internal acidic environment due to the hydrolysis of PLGA, calcium carbonate (CaCO3) powder was introduced as a pH regulator. Then, the internal pH was found to be nearly neutral and many BUP microcrystals were dispersed in the gel network. In this way, BUP had achieved a sustained release out of the thermogel. The maximum possible effect (MPE) in a rat sciatic nerve blockade model was used to describe the sensory blockade effect. In vivo analgesic effects evaluated with a hot plate experiment of rats demonstrated that the thermogel encapsulated with BUP microcrystal and CaCO3 powder significantly prolonged analgesia up to 44 h, the duration time with respect to 50% MPE. The intramuscularly injected implant exhibited biocompatibility in histological analyses. Besides, the untreated leg of the rats was not influenced by the treated leg, indicating no obvious systematic anesthesia of this hydrogel formulation. Such an intelligent and composite formulation represents a potential strategy for long-acting analgesia therapy.
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Affiliation(s)
- Wen Guo
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Dinglingge Cao
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Weihan Rao
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Tao Sun
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Yiman Wei
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Yang Wang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Lin Yu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Jiandong Ding
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
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6
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Xu Y, Dong X, Xu H, Jiao P, Zhao LX, Su G. Nanomaterial-Based Drug Delivery Systems for Pain Treatment and Relief: From the Delivery of a Single Drug to Co-Delivery of Multiple Therapeutics. Pharmaceutics 2023; 15:2309. [PMID: 37765278 PMCID: PMC10537372 DOI: 10.3390/pharmaceutics15092309] [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: 08/21/2023] [Revised: 09/06/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
The use of nanomaterials in drug delivery systems for pain treatment is becoming increasingly common. This review aims to summarize how nanomaterial-based drug delivery systems can be used to effectively treat and relieve pain, whether via the delivery of a single drug or a combination of multiple therapeutics. By utilizing nanoformulations, the solubility of analgesics can be increased. Meanwhile, controlled drug release and targeted delivery can be realized. These not only improve the pharmacokinetics and biodistribution of analgesics but also lead to improved pain relief effects with fewer side effects. Additionally, combination therapy is frequently applied to anesthesia and analgesia. The co-encapsulation of multiple therapeutics into a single nanoformulation for drug co-delivery has garnered significant interest. Numerous approaches using nanoformulation-based combination therapy have been developed and evaluated for pain management. These methods offer prolonged analgesic effects and reduced administration frequency by harnessing the synergy and co-action of multiple targets. However, it is important to note that these nanomaterial-based pain treatment methods are still in the exploratory stage and require further research to be effectively translated into clinical practice.
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Affiliation(s)
- Yuhang Xu
- School of Pharmacy, Institute of Pain Medicine and Special Environmental Medicine, Nantong University, Nantong 226019, China
| | - Xingpeng Dong
- School of Pharmacy, Institute of Pain Medicine and Special Environmental Medicine, Nantong University, Nantong 226019, China
| | - Heming Xu
- School of Pharmacy, Institute of Pain Medicine and Special Environmental Medicine, Nantong University, Nantong 226019, China
| | - Peifu Jiao
- School of Chemistry and Chemical Engineering, Qilu Normal University, Jinan 250200, China
| | - Lin-Xia Zhao
- School of Pharmacy, Institute of Pain Medicine and Special Environmental Medicine, Nantong University, Nantong 226019, China
| | - Gaoxing Su
- School of Pharmacy, Institute of Pain Medicine and Special Environmental Medicine, Nantong University, Nantong 226019, China
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7
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Wang P, Wang G, Tang H, Feng S, Tan L, Zhang P, Wei G, Wang C. Preparation of Ropivacaine Encapsulated by Zeolite Imidazole Framework Microspheres as Sustained-Release System and Efficacy Evaluation. Chemistry 2023; 29:e202203458. [PMID: 36700555 DOI: 10.1002/chem.202203458] [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: 11/07/2022] [Revised: 01/21/2023] [Accepted: 01/25/2023] [Indexed: 01/27/2023]
Abstract
The management of persistent postoperative pain still remains a clinical challenge currently. Although ropivacaine (RVC) is widely used for postoperative analgesia as a local anesthetic, the short half-life makes it difficult to achieve the desired duration of analgesia. Herein, a RVC sustained-release microspheres encapsulated by zeolite imidazole framework-8 (RVC@ZIF-8) was synthesized for the first time, which prolonged the sustained-release of RVC and decreased the resulting drug toxicity. RVC can continuously release in vitro for at least 96 h with high drug loading of 30.6 % and RVC@ZIF-8 had excellent biocompatibility and low cytotoxicity. In sciatic nerve block model, the sensory block time of RVC@ZIF-8 was significantly prolonged compared with RVC, achieving more than 72 h post injection and no inflammation or lesion were found. Based on high drug loading, ideal sustained-release and superior biological safety, RVC@ZIF-8 will be a novel delivery material for local anesthetic with potential application.
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Affiliation(s)
- Peng Wang
- School of Chemistry, Southwest Jiaotong University, Chengdu, Sichuan, 610031, P. R. China.,School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, P. R. China
| | - Guangyu Wang
- School of Chemistry, Southwest Jiaotong University, Chengdu, Sichuan, 610031, P. R. China.,School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, P. R. China
| | - Hongwen Tang
- School of Chemistry, Southwest Jiaotong University, Chengdu, Sichuan, 610031, P. R. China.,School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, P. R. China
| | - Siwen Feng
- School of Chemistry, Southwest Jiaotong University, Chengdu, Sichuan, 610031, P. R. China.,School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, P. R. China
| | - Lichuan Tan
- School of Chemistry, Southwest Jiaotong University, Chengdu, Sichuan, 610031, P. R. China.,School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, P. R. China
| | - Pu Zhang
- NMPA Key Laboratory for Quality Monitoring of Narcotic Drugs and Psychotropic Substances, Chongqing institute for Food and Drug Control, Chongqing, 401121, P. R. China
| | - Guihua Wei
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, P. R. China
| | - Cuijuan Wang
- School of Chemistry, Southwest Jiaotong University, Chengdu, Sichuan, 610031, P. R. China.,School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, P. R. China
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Yang J, Chen Y, Zhao L, Zhang J, Luo H. Constructions and Properties of Physically Cross-Linked Hydrogels Based on Natural Polymers. POLYM REV 2022. [DOI: 10.1080/15583724.2022.2137525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Affiliation(s)
- Jueying Yang
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China
| | - Yu Chen
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China
- Institute of Engineering Medicine, Beijing Institute of Technology, Beijing, China
- Sports & Medicine Integration Research Center (SMIRC), Capital University of Physical Education and Sports, Beijing, China
| | - Lin Zhao
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China
| | - Jinghua Zhang
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China
| | - Hang Luo
- Institute of Engineering Medicine, Beijing Institute of Technology, Beijing, China
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9
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Peng F, Liu J, Zhang Y, Zhao G, Gong D, He L, Zhang W, Qiu F. Interaction Between Ropivacaine and a Self-Assembling Peptide: A Nanoformulation for Long-Acting Analgesia. Int J Nanomedicine 2022; 17:3371-3384. [PMID: 35937079 PMCID: PMC9346411 DOI: 10.2147/ijn.s369706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 07/22/2022] [Indexed: 11/23/2022] Open
Abstract
Introduction Methods Results Conclusion
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Affiliation(s)
- Fei Peng
- Laboratory of Anesthesia and Critical Care Medicine, Department of Anesthesiology, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, 610041, People’s Republic of China
| | - Jing Liu
- Laboratory of Anesthesia and Critical Care Medicine, Department of Anesthesiology, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, 610041, People’s Republic of China
- National-Local Joint Engineering Research Center of Translational Medicine of Anesthesiology, West China Hospital, Sichuan University, Chengdu, 610041, People’s Republic of China
| | - Yujun Zhang
- Laboratory of Anesthesia and Critical Care Medicine, Department of Anesthesiology, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, 610041, People’s Republic of China
- National-Local Joint Engineering Research Center of Translational Medicine of Anesthesiology, West China Hospital, Sichuan University, Chengdu, 610041, People’s Republic of China
| | - Guoyan Zhao
- Laboratory of Anesthesia and Critical Care Medicine, Department of Anesthesiology, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, 610041, People’s Republic of China
- National-Local Joint Engineering Research Center of Translational Medicine of Anesthesiology, West China Hospital, Sichuan University, Chengdu, 610041, People’s Republic of China
| | - Deying Gong
- Laboratory of Anesthesia and Critical Care Medicine, Department of Anesthesiology, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, 610041, People’s Republic of China
- National-Local Joint Engineering Research Center of Translational Medicine of Anesthesiology, West China Hospital, Sichuan University, Chengdu, 610041, People’s Republic of China
| | - Liu He
- Laboratory of Anesthesia and Critical Care Medicine, Department of Anesthesiology, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, 610041, People’s Republic of China
- National-Local Joint Engineering Research Center of Translational Medicine of Anesthesiology, West China Hospital, Sichuan University, Chengdu, 610041, People’s Republic of China
| | - Wensheng Zhang
- Laboratory of Anesthesia and Critical Care Medicine, Department of Anesthesiology, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, 610041, People’s Republic of China
- National-Local Joint Engineering Research Center of Translational Medicine of Anesthesiology, West China Hospital, Sichuan University, Chengdu, 610041, People’s Republic of China
| | - Feng Qiu
- Laboratory of Anesthesia and Critical Care Medicine, Department of Anesthesiology, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, 610041, People’s Republic of China
- National-Local Joint Engineering Research Center of Translational Medicine of Anesthesiology, West China Hospital, Sichuan University, Chengdu, 610041, People’s Republic of China
- Correspondence: Feng Qiu; Wensheng Zhang, Email ;
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10
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Chen S, Yao W, Wang H, Wang T, Xiao X, Sun G, Yang J, Guan Y, Zhang Z, Xia Z, Li M, Tao Y, Hei Z. Injectable electrospun fiber-hydrogel composite sequentially releasing clonidine and ropivacaine for prolonged and walking regional analgesia. Am J Cancer Res 2022; 12:4904-4921. [PMID: 35836801 PMCID: PMC9274753 DOI: 10.7150/thno.74845] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Accepted: 06/09/2022] [Indexed: 02/07/2023] Open
Abstract
Rationale: Peripheral nerve block is a traditional perioperative analgesic method for its precise pain control and low systemic toxicity. However, a single low dose of local anesthetic merely provides a few hours of analgesia, and high dose results in irreversible toxicity, whereas continuous infusion of anesthetics is expensive and complicated. Therefore, it is necessary to develop a long-acting and sensory-selective local anesthetic for safe perioperative analgesia. Methods: An injectable composite comprising ropivacaine-loaded poly (ε-caprolactone) electrospun fiber and clonidine-loaded F127 hydrogel (Fiber-Rop/Gel-Clo composite) was developed for long-acting and walking regional analgesia with barely one dose. The peripheral nerve blockade effect of the composite was evaluated in a rat sciatic nerve block model. Also, the biodegradability and biosafety of the composite was evaluated. Results: The preferentially released Clo from the hydrogel rapidly constricted the peripheral arterial vessels, reducing the blood absorption of Rop and thus enhancing the local Rop accumulation at the injection site. The subsequently sustainable release of Rop from the fiber, significantly prolonged the sciatic nerve block of rats. Remarkably, an amazing sensorimotor segregation effect was achieved, as the sensory blockade (32.0 ± 1.4 h) lasted significantly longer than the motor blockade (20.3 ± 0.9 h). Additionally, the Fiber-Rop/Gel-Clo composite presented good biodegradability and biosafety in vivo. Conclusions: Our designed Fiber-Rop/Gel-Clo composite with minimal invasion, prolonged synergistic analgesia, and strikingly sensorimotor segregation effect, posted a promising prospect for regional long-term walking analgesia in clinical treatment.
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Affiliation(s)
- Sufang Chen
- Department of Anesthesiology and Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China.,Laboratory of Biomaterials and Translational Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Weifeng Yao
- Department of Anesthesiology and Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Haixia Wang
- Department of Anesthesiology and Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China.,Laboratory of Biomaterials and Translational Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Tienan Wang
- Department of Anesthesiology and Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Xue Xiao
- Department of Anesthesiology and Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Guoliang Sun
- Department of Anesthesiology and Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Jing Yang
- Department of Anesthesiology and Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Yu Guan
- Department of Anesthesiology and Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Zhen Zhang
- Department of Anesthesiology and Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Zhengyuan Xia
- Department of Medicine, The University of Hong Kong, Hong Kong 999077, China
| | - Mingqiang Li
- Department of Anesthesiology and Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China.,Laboratory of Biomaterials and Translational Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China.,Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou 510630, China.,✉ Corresponding authors: Email addresses: (M. Li), (Y. Tao), (Z. Hei)
| | - Yu Tao
- Department of Anesthesiology and Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China.,Laboratory of Biomaterials and Translational Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China.,✉ Corresponding authors: Email addresses: (M. Li), (Y. Tao), (Z. Hei)
| | - Ziqing Hei
- Department of Anesthesiology and Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China.,✉ Corresponding authors: Email addresses: (M. Li), (Y. Tao), (Z. Hei)
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11
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Qiao Q, Fu X, Huang R, Lei S, Leng Y, Liu Z, Xia Z, Jiang X. Ropivacaine-loaded, hydroxypropyl chitin thermo-sensitive hydrogel combined with hyaluronan: an injectable, sustained-release system for providing long-lasting local anesthesia in rats. Reg Anesth Pain Med 2022; 47:234-241. [PMID: 35168948 DOI: 10.1136/rapm-2021-102726] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 12/31/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND OBJECTIVE Ropivacaine hydrochloride is a commonly used local anesthetic in clinics. However, local injection or continuous infusion of ropivacaine has been associated with several disadvantages. Accordingly, it is important to develop a new controlled release system for local administration of ropivacaine to achieve a prolong anesthetic effect, improve efficacy, and minimize the side effects. METHODS We developed injectable hydroxypropyl chitin thermo-sensitive hydrogel (HPCH) combined with hyaluronan (HA), which was used to synthesize a ropivacaine (R)-loaded controlled release system. We then conducted drug release test and cytotoxicity assay in vitro. Importantly, we examined the analgesic effects and biocompatibility of this system in vivo by injecting different concentrations of R-HPCH-HA (7.5, 15, 22.5 mg/mL), ropivacaine hydrochloride (RHCL, 7.5 mg/mL), or saline (all in 0.5 mL) near the sciatic nerve in rats. RESULTS R-HPCH-HA induced concentration-dependent thermal-sensory blockade and motor blockade in vivo. In hot plate test, R-HPCH-HA (22.5 mg/mL) induced a significant longer thermal-sensory blockade (17.7±0.7 hours), as compared with RHCL (7.5 mg/mL, 5.7±0.8 hours, n=6/group, p<0.05). It also produced a more prolonged motor blockade (6.8±0.8 hours) than RHCL (3.5±0.8 hours, p<0.05). R-HPCH-HA caused less cytotoxicity than RHCL, as indicated by the higher cell viability in vitro (n=8/group). CONCLUSION Our findings in a sciatic nerve block model demonstrated that the injectable, ropivacaine-loaded controlled release system effectively prolonged the local analgesic effect in rats without notable side effects.
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Affiliation(s)
- Qianqian Qiao
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Xiangyun Fu
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Rui Huang
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Shaoqing Lei
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Yan Leng
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Zhigang Liu
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Zhongyuan Xia
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Xulin Jiang
- Key Laboratory of Biomedical Polymers of Ministry of Education and Department of Chemistry, Wuhan University, Wuhan, Hubei, China
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Deng W, Yan Y, Zhuang P, Liu X, Tian K, Huang W, Li C. Synthesis of nanocapsules blended polymeric hydrogel loaded with bupivacaine drug delivery system for local anesthetics and pain management. Drug Deliv 2022; 29:399-412. [PMID: 35098821 PMCID: PMC8812756 DOI: 10.1080/10717544.2021.2023702] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Local anesthetics are used clinically for the control of postoperative pain management. This study aimed to develop chitosan (CS) with genipin (GP) hydrogels as the hydrophilic lipid shell loaded poly(ε-caprolactone) (PC) nanocapsules as the hydrophobic polymeric core composites (CS-GP/PC) to deliver bupivacaine (BPV) for the prolongation of anesthesia and pain relief. The swelling ratio, in vitro degradation, and rheological properties enhancement of CS-GP/PC polymeric hydrogel. The incorporation of PC nanocapsules into CS-GP hydrogels was confirmed by SEM, FTIR, and XRD analysis. Scanning electron microscopy results demonstrated that the CS-GP hydrogels and CS-GP/PC polymeric hydrogels have a porous structure, the pore dimensions being non-uniform with diameters between 25 and 300 μm. The in vitro drug release profile of CS-GP/PC polymeric hydrogel has been achieved 99.2 ± 1.12% of BPV drug release in 36 h. Cellular viability was evaluated using the CCK-8 test on 3T3 fibroblast cells revealed that the obtained CS-GP/PC polymeric hydrogel with BPV exhibited no obvious cytotoxicity. The CS-GP/PC polymeric hydrogel loaded with BPV showed significant improvement in pain response compared to the control group animals for at least 7 days. When compared with BPV solution, CS-GP hydrogel and CS-GP/PC polymeric hydrogel improved the skin permeation of BPV 3-fold and 5-fold in 24 h, respectively. In vitro and in vivo results pointed out PC nanocapsules loaded CS-GP hydrogel can act as effective drug carriers, thus prolonging and enhancing the anesthetic effect of BPV. Histopathological results demonstrated the excellent biodegradability and biocompatibility of the BPV-loaded CS-GP/PC polymeric hydrogel system on 7, 14, and 21 days without neurotoxicity.HIGHLIGHTS Preparation and characterization of CS-GP/PC polymeric hydrogel system. BPV-loaded CS-GP/PC exhibited prolonged in vitro release in PBS solution. Cytotoxicity of BPV-loaded CS-GP/PC polymeric hydrogel against fibroblast (3T3) cells. Development of CS-GP/PC a promising skin drug-delivery system for local anesthetic BPV.
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Affiliation(s)
- Wentao Deng
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, P. R. China
| | - Yu Yan
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, P. R. China
| | - Peipei Zhuang
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, P. R. China
| | - Xiaoxu Liu
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, P. R. China
| | - Ke Tian
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, P. R. China
| | - Wenfang Huang
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, P. R. China
| | - Cai Li
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, P. R. China
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13
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Qi RQ, Liu W, Wang DY, Meng FQ, Wang HY, Qi HY. Development of local anesthetic drug delivery system by administration of organo-silica nanoformulations under ultrasound stimuli: in vitro and in vivo investigations. Drug Deliv 2021; 28:54-62. [PMID: 33342323 PMCID: PMC7751425 DOI: 10.1080/10717544.2020.1856220] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
The development of local anesthetic (LA) system is the application of commercial drug for the pain management that indorses the reversible obstructive mechanism of neural transmission through preventing the innervation process in human peripheral nerves. Ropivacaine (RV) is one of the greatest frequently used LA s with the actions of long-lasting and low-toxicity for the post-operative pain management. In this work, we have approached novel design and development of glycosylated chitosan (GCS) encapsulated mesoporous silica nanoparticles (GCS-MONPs)-based nano-scaffold for sustainable distributions and controlled/supported arrival of stacked RV for targeting sites, which can be activated by either outer ultrasound activating to discharge the payload, foundation on-request and dependable analgesia. The structural and morphology analyses result established that prepared nano-formulations have successful molecular interactions and RV loaded spherical morphological structures. The drug release profile of developed nanostructure with ultrasound-activation has been achieved 50% of drug release in 2 h and 90% of drug release was achieved in 12 h, which displays more controlled release when compared to free RV solution. The in vitro cell compatibility analysis exhibited GCS-MONPs with RV has improved neuron cell survival rates when compared to other samples due to its porous surface and suitable biopolymer proportions. The analysis of ex vitro and in vivo pain relief analysis demonstrated treated animal models have high compatibility with GCS-MONPs@RV, which was confirmed by histomorphology. This developed MONPs based formulations with ultrasound-irradiation gives a prospective technique to clinical agony the board through on-request and dependable help with discomfort.
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Affiliation(s)
- Rong-Qin Qi
- Department of Anesthesiology, Jinan Maternal and Child Health Hospital, Jinan, China
| | - Wei Liu
- Department of Anesthesiology, Jinan Maternal and Child Health Hospital, Jinan, China
| | - Duan-Yu Wang
- Department of Anesthesiology, Jinan Central Hospital Affiliated to Shandong University, Jinan, China
| | - Fan-Qing Meng
- Department of Anesthesiology, Jinan Maternal and Child Health Hospital, Jinan, China
| | - Hong-Ying Wang
- Department of Anesthesiology, Jinan Maternal and Child Health Hospital, Jinan, China
| | - Hai-Yan Qi
- Department of Anesthesiology, Jinan Maternal and Child Health Hospital, Jinan, China
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14
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Chitosan-based thermosensitive hydrogel entrapping calcein for visualizing localized drug delivery. PROCEEDINGS OF THE INDIAN NATIONAL SCIENCE ACADEMY 2021. [DOI: 10.1007/s43538-021-00014-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Pang Q, Zhao J, Zhang S, Zhang X. Near-infrared triggered on-demand local anesthesia using a jammed microgels system. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2020; 31:2252-2267. [PMID: 32700629 DOI: 10.1080/09205063.2020.1800904] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
To conveniently modulate the degree of local analgesia in response to changes in patients' needs and level of activity, a NIR-activated drug delivery system based on jammed microgels was introduced in the present study to realize on-demand local anesthesia. Chemically cross-linked gelatin microgels (5-15 μm) containing N-isopropylacrylamide (NIPAM), methylallyl polyethylene glycol (APEG) and graphene oxide (GOs) were fabricated through emulsion. After the in situ free radical polymerization, the physical network was formed, producing microgels with double networks (DN microgels). The DN microgels exhibited thermosensitive properties. The copolymerization of APEG resulted in the increase of lower critical solution temperature (LCST) of microgels. The maximum volume shrinkage ratio of DN microgels (NIPAM40 + APEG60) increased with the increase of the content of physical cross-linking network. The DN microgels also exhibited NIR-responsive ability. Under the NIR irradiance of 272 mW/cm2, the temperature of DN microgels with 3 mg/mL GOs reached 40 °C within 60 s, resulting in the volume shrinkage of 14%. Ropivacaine release from DN microgels could be effectively triggered by NIR irradiation in vitro. After centrifugation, a jammed microgels system was produced where microgels packed densely, displaying shear-thinning behavior for achieving injection. The jammed DN microgels carrying ropivacaine were injected subcutaneously into rat footpad. NIR irradiation produced on-demand and repeated infiltration anesthesia in the rat footpad. The jammed DN microgels system thus was beneficial in the management of pain.
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Affiliation(s)
- Qiying Pang
- Department of Anesthesiology, Tongji Hospital of Tongji University, Shanghai, China
| | - Jia Zhao
- Research and Development Department, Shanghai Jingchen Biotechnology Co., Ltd., Shanghai, China
| | - Shuchi Zhang
- Department of Anesthesiology, Tongji Hospital of Tongji University, Shanghai, China
| | - Xiaoqing Zhang
- Department of Anesthesiology, Tongji Hospital of Tongji University, Shanghai, China
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16
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Jiang X, Wang S, Chen H. A Novel Fabrication of Dose-Dependent Injectable Curcumin Biocomposite Hydrogel System Anesthetic Delivery Method for Care and Management of Musculoskeletal Pain. Dose Response 2020; 18:1559325820929555. [PMID: 32782446 PMCID: PMC7385839 DOI: 10.1177/1559325820929555] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 04/28/2020] [Accepted: 04/30/2020] [Indexed: 12/30/2022] Open
Abstract
Chronic musculoskeletal pain has biological, psychological, and social components. In this article, we have demonstrated the easily injectable nanocomposite carrier for the treatment of chronic musculoskeletal pain. Briefly, the curcumin (Cur) loaded with lipid nanocapsules (LNCs; Cur@LNCs) using the phase invasion method. The synthesized Cur@LNCs were characterized by using scanning electron microscopy, transmittance electron microscopy, and the size of the fabricated nanoparticles confirmed by dynamic light scattering analysis. The synthesized Cur@LNC injectable hydrogel shows excellent results in vivo in the rat model. We have examined the efficiency of the chronic constriction injury in the rat model and induced the pain using thermal paw withdrawal latency. The injectable hydrogels Cur@LNCs display a remarkable reduction in pain 7 days post administrations compared to the untreated group animals. This work could establish the preclinical candidate of the neuropathic pain response in the future.
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Affiliation(s)
- Xuehong Jiang
- Department of General Medicine, First People’s Hospital of Wenling, Wenling, China
- Department of Spinal Surgery, First People’s Hospital of Wenling, Wenling, China
| | - Shuaishuai Wang
- Department of General Medicine, First People’s Hospital of Wenling, Wenling, China
- Department of Spinal Surgery, First People’s Hospital of Wenling, Wenling, China
| | - Hui Chen
- Department of General Medicine, First People’s Hospital of Wenling, Wenling, China
- Department of Spinal Surgery, First People’s Hospital of Wenling, Wenling, China
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Zhang H, Zhao Z, Chen W, Lv M, Cheng J, Sun Z. In vitro and in vivo studies of micro-depots using tailored microemulsion for sustained local anaesthesia. Pharm Dev Technol 2020; 25:874-881. [PMID: 32274946 DOI: 10.1080/10837450.2020.1754425] [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] [Indexed: 10/24/2022]
Abstract
In clinical practice, lidocaine is used as local anesthetic for the management of post-operative pain. The commercial formulation including gels, injections and ointments showed short duration of action (1 to 2 h). In this paper, the efforts have being made to develop tailored lidocaine-microemulsion (o/w), which on penetration in the skin layer cause micro-depots formation due to destabilization of the microemulsion system. To identify the microemulsion region, pseudo ternary diagrams were constructed using Capmul MCM as oil, Pluronic F68 as tri-block surfactant, polyethylene glycol 200 as co-surfactant at 1:4 and 1:6 ratios (S:Co-S). The selected 5%w/v lidocaine loaded microemulsion [Ld-ME-2(1:4)] was stable in thermodynamic test and during shelf life period (3 months). In ex vivo permeability study, the lidocaine release from Ld-ME-2(1:4) microemulsion was sustained in comparison to the marketed lidocaine ointment. The skin irritation study confirmed the safety of lidocaine loaded microemulsion. Tail flick test showed improved and sustain local anaesthetic effect in comparison to the market ointment. The improved efficacy of microemulsion system, was due to high penetration in the skin layer due to local precipitation of lidocaine from microemulsion. The findings suggest that the tailored microemulsion could be a potential strategy to prolong the local anaesthesia.
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Affiliation(s)
- Haiping Zhang
- Department of Anesthesiology, The Fourth Affiliated Hospital of Nanchang University, Jiangxi, China
| | - Zeyu Zhao
- Department of Anesthesiology, Sichuan Bayi Rehabilitation Center (Sichuan Provincial Rehabilitation Hospital), Chengdu, China
| | - Wenjia Chen
- Department of Anesthesiology, Taizhou People's Hospital, Taizhou, China
| | - Miaomiao Lv
- Department of Anesthesiology, The 323 Hospital of PLA, Xi'an, China
| | - Junmei Cheng
- Department of Pathology, Central Laboratory of Heze Medical College, Heze, China
| | - Zhihua Sun
- Department of Anesthesiology, Xiangya Hospital Central South University, Changsha, China
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18
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Zhao Z, Lian Y, Zhu Y, Ye H, Liu M, Li J. Depot lidocaine-loaded microemulsion for prolonged local anesthesia: Different efficacy model studies. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2019.101404] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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19
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Lidocaine tripotassium phosphate complex laden microemulsion for prolonged local anaesthesia: In vitro and in vivo studies. Colloids Surf B Biointerfaces 2020; 185:110632. [DOI: 10.1016/j.colsurfb.2019.110632] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 10/31/2019] [Accepted: 11/07/2019] [Indexed: 12/28/2022]
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20
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Yang Y, Qiu D, Liu Y, Chao L. Topical anesthetic analgesic therapy using the combination of ropivacaine and dexmedetomidine: hyaluronic acid modified long-acting nanostructured lipid carriers containing a skin penetration enhancer. DRUG DESIGN DEVELOPMENT AND THERAPY 2019; 13:3307-3319. [PMID: 31571832 PMCID: PMC6755955 DOI: 10.2147/dddt.s211443] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 08/19/2019] [Indexed: 12/12/2022]
Abstract
Purpose Hyaluronic acid-poly(ethylene glycol)-distearoyl phosphoethanolamine (HA-PEG-DSPE) modified and tocopheryl polyethylene glycol 1000 succinate (TPGS) contained nanostructured lipid carriers (NLCs) were prepared loading ropivacaine and dexmedetomidine to improve the topical anesthetic analgesic anesthesia efficiency. Methods NLCs were prepared by the solvent diffusion method. The average particle size, zeta potential, release behavior, and cytotoxicity of the NLCs were tested. Ex vivo skin permeation was studied using a Franz diffusion cell mounted with depilated rat skin. Local anesthesia antinociceptive efficiency was evaluated by rat tail flick latency study in vivo. Results NLCs have sizes of about 100 nm, with negative zeta potentials. All the NLCs formulations were found to be significantly less cytotoxic than free drugs at equivalent concentrations. The cumulative amount of drugs penetrated through rat skin from NLCs was 2.0–4.7 folds higher than that of the drugs solution. The in vivo anesthesia antinociception study displayed that NLCs showed stronger and longer anesthesia antinociceptive effect when compared with single drugs loaded NLCs and drugs solution even at a lower dosage of drugs. Conclusion The results demonstrated that the HA modified, TPGS contained, dual drugs loaded NLCs could perform a synergistic effect and may reduce the amount of drugs, which can lower the toxicity of the system and at the meanwhile, increase the anesthesia antinociceptive efficiency.
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Affiliation(s)
- Yongjian Yang
- Department of Anesthesiology, Jinan Central Hospital Affiliated to Shandong University, Ji'nan, Shandong Province 250013, People's Republic of China
| | - Dahai Qiu
- Department of Anesthesiology, Jinan Central Hospital Affiliated to Shandong University, Ji'nan, Shandong Province 250013, People's Republic of China
| | - Yajun Liu
- Department of Anesthesiology, Jinan Central Hospital Affiliated to Shandong University, Ji'nan, Shandong Province 250013, People's Republic of China
| | - Lei Chao
- Department of Anesthesiology, Jinan Central Hospital Affiliated to Shandong University, Ji'nan, Shandong Province 250013, People's Republic of China
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Wang S, Lin Q, Wang Z, Pan X. Ropivacaine induces neurotoxicity by activating MAPK/p38 signal to upregulate Fas expression in neurogliocyte. Neurosci Lett 2019; 706:7-11. [DOI: 10.1016/j.neulet.2019.04.048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 04/19/2019] [Accepted: 04/23/2019] [Indexed: 02/06/2023]
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22
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Preparation of ropivacaine loaded PLGA microspheres as controlled-release system with narrow size distribution and high loading efficiency. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2018.11.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Li A, Yang F, Xin J, Bai X. An efficient and long-acting local anesthetic: ropivacaine-loaded lipid-polymer hybrid nanoparticles for the control of pain. Int J Nanomedicine 2019; 14:913-920. [PMID: 30774342 PMCID: PMC6362966 DOI: 10.2147/ijn.s190164] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Purpose Local anesthetics are used clinically for the control of pain following operation (including gastrointestinal surgery) or for the management of other acute and chronic pain. This study aimed to develop a kind of lipid-polymer hybrid nanoparticles (LPNs), which were constructed using poly(ethylene glycol)-distearoylphosphatidylethanolamine (PEG-DSPE) as the hydrophilic lipid shell and poly-ε-caprolactone (PCL) as the hydrophobic polymeric core. Methods Ropivacaine (RPV) was entrapped in the LPNs (RPV-LPNs) and the physicochemical and biochemical properties such as size, zeta potential, drug release, and cytotoxicity were studied. The long-lasting effects and safety aspects of the LPNs were evaluated in vitro and in vivo. Results The particle size and zeta potential of RPV-LPNs were 112.3±2.6 nm and −33.2±3.2 mV, with an entrapment efficiency (EE) of 90.2%±3.7%. Ex vivo permeation efficiency of LPNs was better than the drug solution. The RPV-LPNs exhibited a long-lasting in vivo anesthesia effect in both rats and mice. Conclusion Considering the low cytotoxicity, the LPNs prepared here could be used as an efficient local anesthetic for the control of pain.
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Affiliation(s)
- Aimei Li
- Department of Anesthesiology, Affiliated Hospital of Jining Medical University, Jining, Shandong, China,
| | - Feng Yang
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining, Shandong, China
| | - Jiaying Xin
- Department of Anesthesiology, Affiliated Hospital of Jining Medical University, Jining, Shandong, China,
| | - Xuebo Bai
- Department of Anesthesiology, Affiliated Hospital of Jining Medical University, Jining, Shandong, China,
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Ávila Filho SH, Dias Ferreira K, Vieira da Silva R, Vieira de Souza Silva E, Fernandes Santos Catelan B, Brianezi Dignani de Moura VM, Franco da Silva LA. Comparison between poliglecaprone and chitosan absorbable sutures in laparorrhaphy and cecorrhaphy in rabbits. J Biomed Mater Res B Appl Biomater 2019; 107:2102-2108. [DOI: 10.1002/jbm.b.34303] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 10/17/2018] [Accepted: 12/01/2018] [Indexed: 11/11/2022]
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Ning C, Guo Y, Yan L, Thawani JP, Zhang W, Fu C, Liu T, Ding J. On-Demand Prolongation of Peripheral Nerve Blockade through Bupivacaine-Loaded Hydrogels with Suitable Residence Periods. ACS Biomater Sci Eng 2018; 5:696-709. [PMID: 33405832 DOI: 10.1021/acsbiomaterials.8b01107] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Cong Ning
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, People’s Republic of China
- Department of Spine Surgery, The First Hospital of Jilin University, 71 Xinmin Street, Changchun 130021, People’s Republic of China
| | - Ying Guo
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, People’s Republic of China
- Department of Anesthesia, The Second Hospital of Jilin University, 218 Ziqiang Street, Changchun 130041, People’s Republic of China
| | - Lesan Yan
- Department of Bioengineering, University of Pennsylvania, 210 South 33rd Street, Philadelphia, Pennsylvania 19104, United States
| | - Jayesh P. Thawani
- Department of Bioengineering, University of Pennsylvania, 210 South 33rd Street, Philadelphia, Pennsylvania 19104, United States
- Department of Neurosurgery, Hospital of the University of Pennsylvania, 3400 Spruce Street, Philadelphia, Pennsylvania 19104, United States
| | - Wenjing Zhang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, People’s Republic of China
- Department of Anesthesia, China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun 130033, People’s Republic of China
| | - Changfeng Fu
- Department of Spine Surgery, The First Hospital of Jilin University, 71 Xinmin Street, Changchun 130021, People’s Republic of China
| | - Tiecheng Liu
- Department of Anesthesia, The Second Hospital of Jilin University, 218 Ziqiang Street, Changchun 130041, People’s Republic of China
| | - Jianxun Ding
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, People’s Republic of China
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Zhang W, Xu W, Ning C, Li M, Zhao G, Jiang W, Ding J, Chen X. Long-acting hydrogel/microsphere composite sequentially releases dexmedetomidine and bupivacaine for prolonged synergistic analgesia. Biomaterials 2018; 181:378-391. [DOI: 10.1016/j.biomaterials.2018.07.051] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 07/26/2018] [Indexed: 01/08/2023]
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Khanal M, Gohil SV, Kuyinu E, Kan HM, Knight BE, Baumbauer KM, Lo KWH, Walker J, Laurencin CT, Nair LS. Injectable nanocomposite analgesic delivery system for musculoskeletal pain management. Acta Biomater 2018; 74:280-290. [PMID: 29803784 PMCID: PMC6020057 DOI: 10.1016/j.actbio.2018.05.038] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Revised: 05/17/2018] [Accepted: 05/23/2018] [Indexed: 01/04/2023]
Abstract
Musculoskeletal pain is a major health issue which results from surgical procedures (i.e. total knee and/or hip replacements and rotator cuff repairs), as well as from non-surgical conditions (i.e. sympathetically-mediated pain syndrome and occipital neuralgia). Local anesthetics, opioids or corticosteroids are currently used for the pain management of musculoskeletal conditions. Even though local anesthetics are highly preferred, the need for multiple administration presents significant disadvantages. Development of unique delivery systems that can deliver local anesthetics at the injection site for prolonged time could significantly enhance the therapeutic efficacy and patient comfort. The goal of the present study is to evaluate the efficacy of an injectable local anesthetic nanocomposite carrier to provide sustained analgesic effect. The nanocomposite carrier was developed by encapsulating ropivacaine, a local anesthetic, in lipid nanocapsules (LNC-Rop), and incorporating the nanocapsules in enzymatically crosslinked glycol chitosan (0.3GC) hydrogels. Cryo Scanning Electron Microscopic (Cryo SEM) images showed the ability to distribute the LNCs within the hydrogel without adversely affecting their morphology. The study demonstrated the feasibility to achieve sustained release of lipophilic molecules from the nanocomposite carrier in vitro and in vivo. A rat chronic constriction injury (CCI) pain model was used to evaluate the efficacy of the nanocomposite carrier using thermal paw withdrawal latency (TWL). The nanocomposite carriers loaded with ropivacaine and dexamethasone showed significant improvement in pain response compared to the control groups for at least 7 days. The study demonstrated the clinical potential of these nanocomposite carriers for post-operative and neuropathic pain. STATEMENT OF SIGNIFICANCE Acute or chronic pain associated with musculoskeletal conditions is considered a major health issue, with healthcare costs totaling several billion dollars. The opioid crisis presents a pressing clinical need to develop alternative and effective approaches to treat musculoskeletal pain. The goal of this study was to develop a long-acting injectable anesthetic formulation which can sustain a local anesthetic effect for a prolonged time. This in turn could increase the quality of life and rehabilitation outcome of patients, and decrease opioid consumption. The developed injectable nanocomposite demonstrated the feasibility to achieve prolonged pain relief in a rat chronic constriction injury (CCI) model.
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Affiliation(s)
- Manakamana Khanal
- Department of Orthopaedic Surgery, University of Connecticut Health Center, Farmington, USA; Institute for Regenerative Engineering, The Raymond Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health Center, Farmington, USA
| | - Shalini V Gohil
- Department of Orthopaedic Surgery, University of Connecticut Health Center, Farmington, USA; Institute for Regenerative Engineering, The Raymond Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health Center, Farmington, USA
| | - Emmanuel Kuyinu
- Department of Orthopaedic Surgery, University of Connecticut Health Center, Farmington, USA; Institute for Regenerative Engineering, The Raymond Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health Center, Farmington, USA
| | - Ho-Man Kan
- Department of Orthopaedic Surgery, University of Connecticut Health Center, Farmington, USA; Institute for Regenerative Engineering, The Raymond Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health Center, Farmington, USA
| | - Brittany E Knight
- Department of Neuroscience, University of Connecticut Health Center, Farmington, USA
| | - Kyle M Baumbauer
- The Center for Advancement in Managing Pain, School of Nursing, University of Connecticut, Storrs, USA; Department of Neuroscience, University of Connecticut Health Center, Farmington, USA
| | - Kevin W-H Lo
- Institute for Regenerative Engineering, The Raymond Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health Center, Farmington, USA; Department of Medicine, University of Connecticut Health Center, Farmington, USA; Department of Endocrinology, University of Connecticut Health Center, Farmington, USA
| | - Joseph Walker
- Department of Orthopaedic Surgery, University of Connecticut Health Center, Farmington, USA
| | - Cato T Laurencin
- Department of Orthopaedic Surgery, University of Connecticut Health Center, Farmington, USA; Institute for Regenerative Engineering, The Raymond Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health Center, Farmington, USA; Department of Biomedical Engineering, University of Connecticut, Storrs, USA; Department of Material Science and Engineering, Institute of Material Science, University of Connecticut, Storrs, USA; Department of Reconstructive Sciences, University of Connecticut Health Center, Farmington, USA
| | - Lakshmi S Nair
- Department of Orthopaedic Surgery, University of Connecticut Health Center, Farmington, USA; Institute for Regenerative Engineering, The Raymond Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health Center, Farmington, USA; Department of Biomedical Engineering, University of Connecticut, Storrs, USA; Department of Material Science and Engineering, Institute of Material Science, University of Connecticut, Storrs, USA.
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Zhang W, Ning C, Xu W, Hu H, Li M, Zhao G, Ding J, Chen X. Precision-guided long-acting analgesia by Gel-immobilized bupivacaine-loaded microsphere. Theranostics 2018; 8:3331-3347. [PMID: 29930733 PMCID: PMC6010997 DOI: 10.7150/thno.25276] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 04/08/2018] [Indexed: 12/17/2022] Open
Abstract
Peripheral nerve blockade (PNB) is a conventional strategy for the management of acute postoperative pain. However, the short duration of the associated analgesia and the potential systemic toxicity due to the low molecular weights of local anesthetics limit their application. Methods: An in situ forming injectable Gel-microsphere (Gel-MS) system consisting of PLGA-PEG-PLGA Gel (Gel) and Gel-immobilized bupivacaine-loaded microsphere (MS/BUP) was prepared for precision-guided long-acting analgesia. A series of in vitro characterizations, such as scanning electron microscopy, rheology analysis, confocal laser scanning microscopy, drug release, and erosion and degradation, were carried out. After that, the in vivo analgesia effect of the Gel-MS system, the immobilization effect of Gel on the MS, and biocompatibility of the system were evaluated using a sciatic nerve block model. Results: The BUP release from the Gel-MS system was regulated by both the inner MS and the outer Gel matrix, demonstrating sustained BUP release in vitro for several days without an initial burst release. More importantly, incorporation of the Gel immobilized the MS and hindered the diffusion of MS from the injection site because of its in situ property, which contributed to a high local drug concentration and prevented systemic side effects. In vivo, a single injection of Gel-MS/BUP allowed rats to maintain sensory and motor blockade significantly longer than treatment with MS/BUP (P < 0.01) or BUP-loaded Gel (Gel-BUP, P < 0.01). Histopathological results demonstrated the excellent biodegradability and biocompatibility of the Gel-MS system without neurotoxicity. Conclusion: This precision-guided long-acting analgesia, which provides an in situ and sustained release of BUP, is a promising strategy for long-acting analgesia, and could represent a potential alternative for clinical pain management.
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Affiliation(s)
- Wenjing Zhang
- Department of Anesthesia, China-Japan Union Hospital of Jilin University, Changchun 130033, P. R. China
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Cong Ning
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun 130021, P. R. China
| | - Weiguo Xu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Hanze Hu
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, United States
| | - Mingqiang Li
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, United States
- Guangdong Provincial Key Laboratory of Liver Disease, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, P. R. China
| | - Guoqing Zhao
- Department of Anesthesia, China-Japan Union Hospital of Jilin University, Changchun 130033, P. R. China
| | - Jianxun Ding
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
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Sellami M, Feki S, Triki Z, Zghal J, Zouche I, Hammami B, Charfeddine I, Chaari M, Ghorbel A. Bupivacaine wound infiltration reduces postoperative pain and analgesic requirement after thyroid surgery. Eur Arch Otorhinolaryngol 2018. [DOI: 10.1007/s00405-018-4933-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Wang X, Young DJ, Wu YL, Loh XJ. Thermogelling 3D Systems towards Stem Cell-Based Tissue Regeneration Therapies. Molecules 2018; 23:E553. [PMID: 29498651 PMCID: PMC6017244 DOI: 10.3390/molecules23030553] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 02/25/2018] [Accepted: 02/26/2018] [Indexed: 02/08/2023] Open
Abstract
Stem cell culturing and differentiation is a very important research direction for tissue engineering. Thermogels are well suited for encapsulating cells because of their non-biotoxic nature and mild sol-gel transition as temperature increases. In particular, thermogels provide a 3D growth environment for stem cell growth, which is more similar to the extracellular matrix than flat substrates, so thermogels as a medium can overcome many of the cell abnormalities caused by 2D cell growth. In this review, we summarize the applications of thermogels in cell and stem cell culture in recent years. We also elaborate on the methods to induce stem cell differentiation by using thermogel-based 3D scaffolds. In particular, thermogels, encapsulating specific differentiation-inducing factor and having specific structures and moduli, can induce the differentiation into the desired tissue cells. Three dimensional thermogel scaffolds that control the growth and differentiation of cells will undoubtedly have a bright future in regenerative medicine.
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Affiliation(s)
- Xiaoyuan Wang
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361102, China.
| | - David James Young
- Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore 4558, Queensland, Australia.
| | - Yun-Long Wu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361102, China.
| | - Xian Jun Loh
- A*STAR (Agency for Science, Technology and Research), Institute of Materials Science and Engineering, 2 Fusionopolis Way, Innovis, #08-03, Singapore 138634, Singapore.
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Zhang Y, Yue Y, Chang M. Local anaesthetic pain relief therapy: In vitro and in vivo evaluation of a nanotechnological formulation co-loaded with ropivacaine and dexamethasone. Biomed Pharmacother 2017; 96:443-449. [PMID: 29031203 DOI: 10.1016/j.biopha.2017.09.124] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 09/24/2017] [Accepted: 09/24/2017] [Indexed: 12/22/2022] Open
Abstract
Combination therapy is frequently applied to anesthesia and analgesia for its benefits, which includes prolonged analgesia following peripheral nerve blockade, and reduced side effects. The aim of this study was to develop chitosan (CH) coated poly(ε-caprolactone) (PCL) nanoparticles to co-deliver ropivacaine (RPV) and dexamethasone (DEM) (RPV/DEM CH-PCL NPs) for the prolongation of anesthesia and pain relief. In the present study, RPV/DEM CH-PCL NPs were fabricated. The properties of CH-PCL NPs were evaluated for their particle sizes, zeta potential, drug loading capacity and in vitro drug release profile. In vitro skin permeation and in vivo therapeutic effect in an animal model were further investigated. The results showed that the NPs was around 190nm, with PDI of less than 0.20. The zeta potentials of NPs were about 36mV. In vitro drug release of both RPV and DEM from NPs complied with sustained behaviors. All of the drugs loaded NPs samples studied exhibited no obvious L929 cells cytotoxicity. In vitro skin penetration profiles showed the amount of RPV permeated through the skin from NPs was significantly higher than free RPV. RPV and DEM co-loaded NPs induced remarkably better anesthetic effect than non DEM loaded RPV CH-PCL NPs. The results suggested that adding a small dosage of DEM could improve the anesthesia efficacy of RVP to a large content. The resulting formulation could be applied as a promising anesthesia system for local anesthetics therapy.
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Affiliation(s)
- Yongxin Zhang
- Department of Anesthesiology, Affiliated Hospital of Jining Medical University, Jining, 272029, Shandong, China
| | - Yaocun Yue
- Department of Anesthesiology, Affiliated Hospital of Jining Medical University, Jining, 272029, Shandong, China
| | - Meng Chang
- Department of Anesthesiology, Affiliated Hospital of Jining Medical University, Jining, 272029, Shandong, China.
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Andreu V, Arruebo M. Current progress and challenges of nanoparticle-based therapeutics in pain management. J Control Release 2017; 269:189-213. [PMID: 29146243 DOI: 10.1016/j.jconrel.2017.11.018] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 11/10/2017] [Accepted: 11/11/2017] [Indexed: 02/07/2023]
Abstract
Pain is a widespread and growing health problem worldwide that exerts a considerable social and economic impact on both patients and healthcare systems and, therefore, on society in general. Although current treatment modalities include a wide variety of pharmacological and non-pharmacological approaches, due to the complexity of pain and individual differences in clinical response these options are not always effective in mitigating and relieving pain. In addition, some pain drugs such as non-steroidal anti-inflammatory drugs (NSAIDs), local anesthetics and opioids show several unfavorable side effects. Therefore, current research advances in this medical field are based on the development of potential treatments to address many of the unmet needs and to overcome the existing limitations in pain management. Nanoparticle drug delivery systems present an exciting opportunity as alternative platforms to improve efficacy and safety of medications currently in use. Herein, we review a broad range of nanoparticle formulations (organic nanostructures and inorganic nanoparticles), which have been developed to encapsulate an array of painkillers, paying special attention to the key advantages that these systems offer, (compared to the use of the free drug), as well as to the more relevant results of preclinical studies in animal models. Additionally, we will briefly discuss the impact of some of these nanoformulations in clinical trials.
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Affiliation(s)
- Vanesa Andreu
- Department of Chemical Engineering, Aragon Institute of Nanoscience (INA), University of Zaragoza, Campus Río Ebro-Edificio I+D, C/Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain; Aragon Health Research Institute (IIS), Aragón, 50009 Zaragoza, Spain.
| | - Manuel Arruebo
- Department of Chemical Engineering, Aragon Institute of Nanoscience (INA), University of Zaragoza, Campus Río Ebro-Edificio I+D, C/Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain; Aragon Health Research Institute (IIS), Aragón, 50009 Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029 Madrid, Spain
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Arunkumar P, Indulekha S, Vijayalakshmi S, Srivastava R. In vitro comparative studies of Zein nanoparticles and composite Chitosan thermogels based injectable formulation of Doxorubicin. J Drug Deliv Sci Technol 2017. [DOI: 10.1016/j.jddst.2017.05.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Jang YJ, Lee JH, Seo TB, Oh SH. Lidocaine/multivalent ion complex as a potential strategy for prolonged local anesthesia. Eur J Pharm Biopharm 2017; 115:113-121. [DOI: 10.1016/j.ejpb.2017.02.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 01/31/2017] [Accepted: 02/13/2017] [Indexed: 01/17/2023]
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Fu X, Zeng H, Guo J, Liu H, Shi Z, Chen H, Li D, Xie X, Kuang C. A PLGA–PEG–PLGA Thermosensitive Gel Enabling Sustained Delivery of Ropivacaine Hydrochloride for Postoperative Pain Relief. Chem Pharm Bull (Tokyo) 2017; 65:229-235. [DOI: 10.1248/cpb.c16-00471] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Xudong Fu
- Department of Pharmacy, Wuhan General Hospital of Chinese PLA
| | - Huilin Zeng
- Department of Pharmacy, Wuhan General Hospital of Chinese PLA
| | - Jiaping Guo
- Department of Maxillofacial Surgery, Wuhan General Hospital of Chinese PLA
| | - Hong Liu
- Department of Pharmacy, Wuhan General Hospital of Chinese PLA
| | - Zhen Shi
- Department of Anesthesiology, Wuhan General Hospital of Chinese PLA
| | - Huhai Chen
- Department of Pharmacy, Wuhan General Hospital of Chinese PLA
| | - Dezong Li
- Department of Medical Experiment, Wuhan General Hospital of Chinese PLA
| | - Xiangyang Xie
- Department of Pharmacy, Wuhan General Hospital of Chinese PLA
| | - Changchun Kuang
- Department of Pharmacy, Wuhan General Hospital of Chinese PLA
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Ferreira LEN, Muniz BV, Burga-Sánchez J, Volpato MC, de Paula E, Rosa EAR, Groppo FC. The effect of two drug delivery systems in ropivacaine cytotoxicity and cytokine release by human keratinocytes and fibroblasts. J Pharm Pharmacol 2016; 69:161-171. [DOI: 10.1111/jphp.12680] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 11/12/2016] [Indexed: 11/30/2022]
Abstract
Abstract
Objectives
Modified drug delivery systems have been developed to improve pharmacological properties of local anaesthetics. However, the inflammatory potential of these formulations was not investigated. This study compared the in-vitro effects of ropivacaine (ropi) in plain, liposomal (MLV) or 2-hydroxypropyl-β-cyclodextrin (HP-β-CD) formulations on cell viability, apoptosis and cytokine (IL-1α, TNF-α, IL-6 and IL-10) release.
Methods
Human immortalized keratinocytes (HaCaT) and human immortalized gingival fibroblasts (HGF) were exposed to 1–100 μm ropi concentrations. The cell viability was measured by XTT and LIVE/DEAD assay. Apoptosis was performed by flow cytometry, and cytokine release was measured by ELISA assay.
Key findings
Human immortalized keratinocyte viability was reduced by ropi and both drug delivery systems. However, none of the formulations induced apoptosis. Results showed a differential regulation of IL-1α TNF-α, IL-6 and IL-10 by HaCaT and HGF. Ropi-HP-β-CD increased twofold the IL-6 release by HGF in comparison with the control, while 100 μm ropi-MLV led to an increased release of all pro-inflammatory cytokines by HGF.
Conclusion
The loss in cell viability was not related to cellular apoptosis. Ropi complexed with HP-β-CD showed a similar cytokine release pattern when compared to the plain formulation. Thus, the HP-β-CD form was a better drug carrier than the MLV form for ropivacaine drug delivery.
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Affiliation(s)
- Luiz Eduardo Nunes Ferreira
- Department of Physiological Sciences, Piracicaba Dental School, University of Campinas – UNICAMP – Piracicaba, São Paulo, Brazil
| | - Bruno Vilela Muniz
- Department of Physiological Sciences, Piracicaba Dental School, University of Campinas – UNICAMP – Piracicaba, São Paulo, Brazil
| | - Jonny Burga-Sánchez
- Department of Physiological Sciences, Piracicaba Dental School, University of Campinas – UNICAMP – Piracicaba, São Paulo, Brazil
| | - Maria Cristina Volpato
- Department of Physiological Sciences, Piracicaba Dental School, University of Campinas – UNICAMP – Piracicaba, São Paulo, Brazil
| | - Eneida de Paula
- Department of Biochemistry, Biology Institute, University of Campinas – UNICAMP – Campinas, São Paulo, Brazil
| | - Edvaldo Antonio Ribeiro Rosa
- Xenobiotics Research Unit, Laboratory of Stomatology, Biological and Health Sciences Center, The Pontifical Catholic University of Paraná – Curitiba, Paraná, Brazil
| | - Francisco Carlos Groppo
- Department of Physiological Sciences, Piracicaba Dental School, University of Campinas – UNICAMP – Piracicaba, São Paulo, Brazil
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Spatiotemporal Programing for the On-Demand Release of Bupivacaine Based on an Injectable Composite Hydrogel. J Pharm Sci 2016; 105:3634-3644. [DOI: 10.1016/j.xphs.2016.09.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 09/13/2016] [Accepted: 09/22/2016] [Indexed: 11/23/2022]
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Akkari AC, Papini JZB, Garcia GK, Franco MKD, Cavalcanti LP, Gasperini A, Alkschbirs MI, Yokaichyia F, de Paula E, Tófoli GR, de Araujo DR. Poloxamer 407/188 binary thermosensitive hydrogels as delivery systems for infiltrative local anesthesia: Physico-chemical characterization and pharmacological evaluation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 68:299-307. [DOI: 10.1016/j.msec.2016.05.088] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Revised: 04/06/2016] [Accepted: 05/20/2016] [Indexed: 11/28/2022]
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Man Z, Hu X, Liu Z, Huang H, Meng Q, Zhang X, Dai L, Zhang J, Fu X, Duan X, Zhou C, Ao Y. Transplantation of allogenic chondrocytes with chitosan hydrogel-demineralized bone matrix hybrid scaffold to repair rabbit cartilage injury. Biomaterials 2016; 108:157-67. [DOI: 10.1016/j.biomaterials.2016.09.002] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Revised: 08/31/2016] [Accepted: 09/02/2016] [Indexed: 02/06/2023]
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Zorzetto L, Brambilla P, Marcello E, Bloise N, De Gregori M, Cobianchi L, Peloso A, Allegri M, Visai L, Petrini P. From micro- to nanostructured implantable device for local anesthetic delivery. Int J Nanomedicine 2016; 11:2695-709. [PMID: 27354799 PMCID: PMC4907738 DOI: 10.2147/ijn.s99028] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Local anesthetics block the transmission of painful stimuli to the brain by acting on ion channels of nociceptor fibers, and find application in the management of acute and chronic pain. Despite the key role they play in modern medicine, their cardio and neurotoxicity (together with their short half-life) stress the need for developing implantable devices for tailored local drug release, with the aim of counterbalancing their side effects and prolonging their pharmacological activity. This review discusses the evolution of the physical forms of local anesthetic delivery systems during the past decades. Depending on the use of different biocompatible materials (degradable polyesters, thermosensitive hydrogels, and liposomes and hydrogels from natural polymers) and manufacturing processes, these systems can be classified as films or micro- or nanostructured devices. We analyze and summarize the production techniques according to this classification, focusing on their relative advantages and disadvantages. The most relevant trend reported in this work highlights the effort of moving from microstructured to nanostructured systems, with the aim of reaching a scale comparable to the biological environment. Improved intracellular penetration compared to microstructured systems, indeed, provides specific drug absorption into the targeted tissue and can lead to an enhancement of its bioavailability and retention time. Nanostructured systems are realized by the modification of existing manufacturing processes (interfacial deposition and nanoprecipitation for degradable polyester particles and high- or low-temperature homogenization for liposomes) or development of novel strategies (electrospun matrices and nanogels). The high surface-to-volume ratio that characterizes nanostructured devices often leads to a burst drug release. This drawback needs to be addressed to fully exploit the advantage of the interaction between the target tissues and the drug: possible strategies could involve specific binding between the drug and the material chosen for the device, and a multiscale approach to reach a tailored, prolonged drug release.
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Affiliation(s)
- Laura Zorzetto
- Department of Chemistry, Materials and Chemical Engineering 'G. Natta', Politecnico di Milano, Milan, Italy
| | - Paola Brambilla
- Department of Chemistry, Materials and Chemical Engineering 'G. Natta', Politecnico di Milano, Milan, Italy
| | - Elena Marcello
- Department of Chemistry, Materials and Chemical Engineering 'G. Natta', Politecnico di Milano, Milan, Italy
| | - Nora Bloise
- Department of Molecular Medicine, Centre for Health Technologies (CHT), INSTM UdR of Pavia, University of Pavia, Pavia, Italy
| | - Manuela De Gregori
- Pain Therapy Service, IRCCS Foundation Policlinico San Matteo Pavia, Pavia, Italy
| | - Lorenzo Cobianchi
- General Surgery Department, IRCCS Foundation Policlinico San Matteo, Pavia, Italy; Departments of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
| | - Andrea Peloso
- General Surgery Department, IRCCS Foundation Policlinico San Matteo, Pavia, Italy; Departments of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
| | - Massimo Allegri
- Department of Surgical Sciences, University of Parma, Parma, Italy
| | - Livia Visai
- Department of Molecular Medicine, Centre for Health Technologies (CHT), INSTM UdR of Pavia, University of Pavia, Pavia, Italy; Department of Occupational Medicine, Toxicology and Environmental Risks, S. Maugeri Foundation, IRCCS, Lab of Nanotechnology, Pavia, Italy
| | - Paola Petrini
- Department of Chemistry, Materials and Chemical Engineering 'G. Natta', Politecnico di Milano, Milan, Italy
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Wang J, Zhang L, Chi H, Wang S. An alternative choice of lidocaine-loaded liposomes: lidocaine-loaded lipid–polymer hybrid nanoparticles for local anesthetic therapy. Drug Deliv 2016; 23:1254-60. [PMID: 26881926 DOI: 10.3109/10717544.2016.1141259] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Jianguo Wang
- Department of Anesthesiology, Affiliated Hospital of Qingdao University Medical College, Qingdao, Shandong, China and
- Department of Anesthesiology, Affiliated Hospital of Jining Medical University, Jining, Shandong, China
| | - Laizhu Zhang
- Department of Anesthesiology, Affiliated Hospital of Jining Medical University, Jining, Shandong, China
| | - Huimin Chi
- Department of Anesthesiology, Affiliated Hospital of Jining Medical University, Jining, Shandong, China
| | - Shilei Wang
- Department of Anesthesiology, Affiliated Hospital of Qingdao University Medical College, Qingdao, Shandong, China and
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Preformulation and characterization of a lidocaine hydrochloride and dexamethasone sodium phosphate thermo-reversible and bioadhesive long-acting gel for intraperitoneal administration. Int J Pharm 2016; 498:142-52. [DOI: 10.1016/j.ijpharm.2015.12.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 12/04/2015] [Indexed: 11/20/2022]
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Gohil SV, Kuo C, Adams DJ, Maye P, Rowe DW, Nair LS. Evaluation of the donor cell contribution in rh
BMP
‐2 mediated bone formation with chitosan thermogels using fluorescent protein reporter mice. J Biomed Mater Res A 2016; 104:928-41. [DOI: 10.1002/jbm.a.35634] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 11/18/2015] [Accepted: 12/18/2015] [Indexed: 12/13/2022]
Affiliation(s)
- Shalini V. Gohil
- Department of Orthopaedic SurgeryUConn HealthFarmington Connecticut06030
- Institute for Regenerative Engineering, The Raymond Beverly Sackler Center for Biomedical, Biological, Physical and Engineering SciencesUConn HealthFarmington Connecticut06030
| | - Chia‐Ling Kuo
- Connecticut Institute for Clinical and Translational Science, Institute for Systems Genomics, University of ConnecticutFarmington Connecticut06030
| | - Douglas J. Adams
- Department of Orthopaedic SurgeryUConn HealthFarmington Connecticut06030
| | - Peter Maye
- Center for Regenerative Medicine and Skeletal Development, Department of Reconstructive Sciences, School of Dental MedicineUConn HealthFarmington Connecticut06030
| | - David W. Rowe
- Center for Regenerative Medicine and Skeletal Development, Department of Reconstructive Sciences, School of Dental MedicineUConn HealthFarmington Connecticut06030
| | - Lakshmi S. Nair
- Department of Orthopaedic SurgeryUConn HealthFarmington Connecticut06030
- Institute for Regenerative Engineering, The Raymond Beverly Sackler Center for Biomedical, Biological, Physical and Engineering SciencesUConn HealthFarmington Connecticut06030
- Departments of Material Science and Engineering, Biomedical Engineering and Institute of Material ScienceUniversity of ConnecticutStorrs Connecticut06269
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Arunkumar P, Indulekha S, Vijayalakshmi S, Srivastava R. Poly (caprolactone) microparticles and chitosan thermogels based injectable formulation of etoricoxib for the potential treatment of osteoarthritis. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 61:534-44. [PMID: 26838881 DOI: 10.1016/j.msec.2015.12.039] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 11/19/2015] [Accepted: 12/16/2015] [Indexed: 01/29/2023]
Abstract
This study aimed to evaluate Poly (caprolactone) microparticles (MPs) loaded composite injectable Chitosan gel (CICGs) as a dual purpose (visco-supplement and intra articular drug delivery depot) therapeutic agent for the treatment of Osteoarthritis. Etoricoxib (COX-2 inhibitor), a highly hydrophobic drug was chosen as a model drug for the study. When administered orally, Etoricoxib poses severe cardiovascular toxicity issues. So, we have attempted to deliver this drug intra-articularly, which could retain the drug longer in the joint region and thus could ameliorate these toxicity issues. CICGs were prepared by dispersing MPs in the chitosan-Ammonium hydrogen phosphate solution and incubated at 37 °C. Rheology studies proved that gels were stable and had visco-elastic properties comparable to that of existing visco-supplements. The in vitro drug release profiles of CICGs were found to be more controlled when compared to MPs and bare chitosan gel (BCGs). In vitro and in vivo biocompatibility studies proved that the gels were biocompatible. In vivo synovial drug clearance studies proved that CICGs had a better drug retention capacity than BCGs and MPs. In vivo fluorescence imaging results confirmed that CICGs could stay longer in the joint region when compared to BCGs and MPs. Thus this novel CICGs could be a potential dual purpose gel for the treatment of diseased joint regions especially for Osteoarthritis.
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Affiliation(s)
- P Arunkumar
- Centre for Research in Nanotechnology and Science (CRNTS), Indian Institute of Technology, Bombay, India
| | - S Indulekha
- Department of Biosciences and Bioengineering, Indian Institute of Technology, Bombay, India
| | - S Vijayalakshmi
- Centre for Research in Nanotechnology and Science (CRNTS), Indian Institute of Technology, Bombay, India
| | - R Srivastava
- Department of Biosciences and Bioengineering, Indian Institute of Technology, Bombay, India.
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Local, Controlled Delivery of Local Anesthetics In Vivo from Polymer - Xerogel Composites. Pharm Res 2015; 33:729-38. [PMID: 26555665 DOI: 10.1007/s11095-015-1822-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Accepted: 11/02/2015] [Indexed: 11/27/2022]
Abstract
PURPOSE Polymer-xerogel composite materials have been introduced to better optimize local anesthetics release kinetics for the pain management. In a previous study, it was shown that by adjusting various compositional and nano-structural properties of both inorganic xerogels and polymers, zero-order release kinetics over 7 days can be achieved in vitro. In this study, in vitro release properties are confirmed in vivo using a model that tests for actual functionality of the released local anesthetics. METHODS Composite materials made with tyrosine-polyethylene glycol(PEG)-derived poly(ether carbonate) copolymers and silica-based sol-gel (xerogel) were synthesized. The in vivo release from the composite controlled release materials was demonstrated by local anesthetics delivery in a rat incisional pain model. RESULTS The tactile allodynia resulting from incision was significantly attenuated in rats receiving drug-containing composites compared with the control and sham groups for the duration during which natural healing had not yet taken place. The concentration of drug (bupivacaine) in blood is dose dependent and maintained stable up to 120 h post-surgery, the longest time point measured. CONCLUSIONS These in vivo studies show that polymer-xerogel composite materials with controlled release properties represent a promising class of controlled release materials for pain management.
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Abstract
Acute and chronic pain control is a significant clinical challenge that has been largely unmet. Local anesthetics are widely used for the control of post-operative pain and in the therapy of acute and chronic pain. While a variety of approaches are currently used to prolong the duration of action of local anesthetics, an optimal strategy to achieve neural blockage for several hours to days with minimal toxicity has yet to be identified. Several drug delivery systems such as liposomes, microparticles and nanoparticles have been investigated as local anesthetic delivery vehicles to achieve prolonged anesthesia. Recently, injectable responsive hydrogels raise significant interest for the localized delivery of anesthetic molecules. This paper discusses the potential of injectable hydrogels to prolong the action of local anesthetics.
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47
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Chen F, Song S, Wang H, Zhang W, Lin C, Ma S, Ye T, Zhang L, Yang X, Qin X, Pan W. Injectable chitosan thermogels for sustained and localized delivery of pingyangmycin in vascular malformations. Int J Pharm 2014; 476:232-40. [PMID: 25283699 DOI: 10.1016/j.ijpharm.2014.09.058] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Revised: 09/27/2014] [Accepted: 09/30/2014] [Indexed: 01/08/2023]
Abstract
Pingyangmycin (PYM) is an effective drug to treat vascular malformations (VM), but can easily diffuse from the injection site, which will reduce its therapeutic effect and increase side effect. Our study was to evaluate PYM-loaded chitosan thermogels for sustained and localized embolization therapy. It was shown that in vitro release of PYM thermogels could be delayed up to 12 days. The results measured by MTT assay showed that PYM thermogels could inhibit proliferation and induce apoptosis of EA.hy926 cells in a concentration and time dependent manner. In vivo pharmacokinetics study demonstrated that compared with PYM injections, PYM thermogels had a better sustained delivery of PYM. Macroscopic observation and histological examination of rabbit ear veins displayed that after administration with PYM thermogels for 18 days, obvious venous embolization and inflammatory response could be found. These results indicate that PYM thermogels is likely to achieve excellent prospects for VM treatment.
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Affiliation(s)
- Fen Chen
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China
| | - Shuangshuang Song
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China
| | - Hongwei Wang
- Department of Oromaxillofacial Head and Neck Oncology, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University, School of Medicine, Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai 200011, PR China
| | - Wenji Zhang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China
| | - Congcong Lin
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China
| | - Shilin Ma
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China
| | - Tiantian Ye
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China
| | - Ling Zhang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China
| | - Xinggang Yang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China
| | - Xingjun Qin
- Department of Oromaxillofacial Head and Neck Oncology, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University, School of Medicine, Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai 200011, PR China.
| | - Weisan Pan
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China.
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Zhai Y, Yang X, Zhao L, Wang Z, Zhai G. Lipid nanocapsules for transdermal delivery of ropivacaine: in vitro and in vivo evaluation. Int J Pharm 2014; 471:103-11. [DOI: 10.1016/j.ijpharm.2014.05.035] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Revised: 04/29/2014] [Accepted: 05/19/2014] [Indexed: 10/25/2022]
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Dou QQ, Liow SS, Ye E, Lakshminarayanan R, Loh XJ. Biodegradable thermogelling polymers: working towards clinical applications. Adv Healthc Mater 2014; 3:977-88. [PMID: 24488805 DOI: 10.1002/adhm.201300627] [Citation(s) in RCA: 111] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Revised: 12/04/2013] [Indexed: 11/08/2022]
Abstract
As society ages, aging medical problems such as organ damage or failure among senior citizens increases, raising the demand for organ repair technologies. Synthetic materials have been developed and applied in various parts of human body to meet the biomedical needs. Hydrogels, in particular, have found extensive applications as wound healing, drug delivery and controlled release, and scaffold materials in the human body. The development of the next generation of soft hydrogel biomaterials focuses on facile synthetic methods, efficacy of treatment, and tunable multi-functionalities for applications. Supramolecular 3D entities are highly attractive materials for biomedical application. They are assembled by modules via various non-covalent bonds (hydrogen bonds, p-p stacking and/or van der Waals interactions). Biodegradable thermogels are a class of such supramolecular assembled materials. Their use as soft biomaterials and their related applications are described in this Review.
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Affiliation(s)
- Qing Qing Dou
- Institute of Materials Research and Engineering (IMRE); 3 Research Link Singapore 117602 Singapore
| | - Sing Shy Liow
- Institute of Materials Research and Engineering (IMRE); 3 Research Link Singapore 117602 Singapore
| | - Enyi Ye
- Institute of Materials Research and Engineering (IMRE); 3 Research Link Singapore 117602 Singapore
| | | | - Xian Jun Loh
- Institute of Materials Research and Engineering (IMRE); 3 Research Link Singapore 117602 Singapore
- Department of Materials Science and Engineering; National University of Singapore; 9 Engineering Drive 1 Singapore 117576 Singapore
- Singapore Eye Research Institute; 11 Third Hospital Avenue Singapore 168751 Singapore
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50
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Ulery BD, Kan HM, Williams BA, Narasimhan B, Lo KWH, Nair LS, Laurencin CT. Facile fabrication of polyanhydride/anesthetic nanoparticles with tunable release kinetics. Adv Healthc Mater 2014; 3:843-7. [PMID: 24376136 DOI: 10.1002/adhm.201300521] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Revised: 12/02/2013] [Indexed: 02/06/2023]
Abstract
This work illustrates a two-step strategy for the fabrication of polymer/drug nanoparticles. Utilizing solvent/non-solvent precipitation and gaseous basification, composite nanoparticles with 0-100% drug loadings are fabricated. Drug release kinetics are dictated by nanoparticle composition allowing future tuning for therapeutic applications.
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Affiliation(s)
- Bret D Ulery
- Institute for Regenerative Engineering, University of Connecticut Health Center, 263 Farmington Avenue, Farmington, CT 06030, USA; Raymond and Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health Center, 263 Farmington Avenue, Farmington, CT 06030, USA; Department of Orthopaedic Surgery, University of Connecticut Health Center, 263 Farmington Avenue, Farmington, CT 06030, USA
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