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Zhang J, Li Y, Xie S, Lou H, Chen H, Zhang G. Baicalein glycymicelle ophthalmic solution: Preparation, in vitro antimicrobial activities, and antimicrobial mechanism evaluations. Int J Pharm 2024; 654:123964. [PMID: 38430948 DOI: 10.1016/j.ijpharm.2024.123964] [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: 01/21/2024] [Revised: 02/20/2024] [Accepted: 02/28/2024] [Indexed: 03/05/2024]
Abstract
The purpose of this study was to develop a novel baicalein (BAI) loaded glycymicelle ophthalmic solution with small molecule phytochemical glycyrrhizin as nanocarriers and to explore this solution's potential as an antimicrobial agent against ocular infections. The optimized BAI glycymicelles had a high encapsulation efficiency (98.76 ± 1.25 %), a small particle size (54.38 ± 2.41 nm), a uniform size distribution (polydispersity index = 0.293 ± 0.083), and a zeta potential of -28.3 ± 1.17 mV. The BAI glycymicelle ophthalmic solution exhibited an excellent short-term storage stability. BAI glycymicelles significantly increased the apparent solubility and in vitro release capability of BAI. The BAI glycymicelle ophthalmic solution exhibited no hen's egg-chorioallantoic membrane' irritation and strong in vivo ocular tolerance in rabbits. The BAI glycymicelles noticeably enhanced the in vivo corneal permeation. The BAI glycymicelles also precipitated increased in vitro antioxidant activity and significantly improved in vitro antipathogen activities. Various antimicrobial mechanisms, including the destruction of the bacterial cell wall, damage to the bacterial cell membranes, interruptions to the biofilm structure, and the apoptosis of bacteria, were inflicted on BAI glycymicelles. These findings provided useful knowledge regarding the development of a novel ophthalmic solution and formulation of BAI.
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Affiliation(s)
- Jing Zhang
- School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao, China
| | - Yuhang Li
- The Eighth People's Hospital of Qingdao, Qingdao, China
| | - Sibin Xie
- Qingdao Central Medical Group, Qingdao, China
| | - Huadong Lou
- The Eighth People's Hospital of Qingdao, Qingdao, China
| | - Hao Chen
- School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao, China.
| | - Guowen Zhang
- The Eighth People's Hospital of Qingdao, Qingdao, China.
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2
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Cui Q, Song X, Zhou L, Dong J, Wei Y, Liu Z, Wu X. Fabrication of resveratrol-loaded soy protein isolate-glycyrrhizin nanocomplex for improving bioavailability via pH-responsive hydrogel properties. Int J Biol Macromol 2024; 258:128950. [PMID: 38143068 DOI: 10.1016/j.ijbiomac.2023.128950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 12/03/2023] [Accepted: 12/19/2023] [Indexed: 12/26/2023]
Abstract
Resveratrol (RES) is a functional polyphenol that suffers from low water solubility and poor bioavailability. A novel RES-loaded soy protein isolate-dipotassium glycyrrhizinate (SPI-DG) nanocomplex (RES@SPI-DG) was designed and evaluated in this study. RES@SPI-DG was prepared using a simple but novel self-assembly ultrasonic-assisted pH-driven method. The interactions between RES and SPI-DG were non-covalent bonds, including hydrophobic interactions, hydrogen bonds, and van der Waals interactions. RES@SPI-DG exhibited high encapsulation efficiency (97.60 ± 0.38 %) and loading capacity (8.74 ± 0.03 %) of RES with a uniform small size (68.39 ± 1.10 nm). RES in RES@SPI-DG was in an amorphous state and demonstrated a 24-h apparent solubility 482.53-fold higher than bare RES. RES@SPI-DG also showed strong in vitro antioxidant properties. The pH-responsive hydrogel character of SPI-DG makes it an effective intestine-targeted delivery system that could retard the release of RES in a simulated stomach and accelerate it in a simulated intestine. In animal experiments, the bioavailability of RES@SPI-DG was 5.17 times higher than that of bare RES, and the biodistribution was also significantly improved. RES@SPI-DG demonstrated a strong hepatoprotective effect against overdose acetaminophen-induced liver injury. The SPI-DG complex might be a promising nano-platform for enhancing the bioavailability and efficacy of hydrophobic polyphenols such as RES.
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Affiliation(s)
- Qingchen Cui
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China; Affiliated Qingdao Third People's Hospital, Qingdao University, Qingdao 266021, China
| | - Xiaoying Song
- Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao, China
| | - Liping Zhou
- Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao, China
| | - Junjie Dong
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Yanjun Wei
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China; Viwit Pharmaceutical Co., Ltd., Zaozhuang, Shandong, China
| | - Zongtao Liu
- Affiliated Qingdao Third People's Hospital, Qingdao University, Qingdao 266021, China.
| | - Xianggen Wu
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China.
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3
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Gastrointestinal Permeation Enhancers for the Development of Oral Peptide Pharmaceuticals. Pharmaceuticals (Basel) 2022; 15:ph15121585. [PMID: 36559036 PMCID: PMC9781085 DOI: 10.3390/ph15121585] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/09/2022] [Accepted: 12/16/2022] [Indexed: 12/23/2022] Open
Abstract
Recently, two oral-administered peptide pharmaceuticals, semaglutide and octreotide, have been developed and are considered as a breakthrough in peptide and protein drug delivery system development. In 2019, the Food and Drug Administration (FDA) approved an oral dosage form of semaglutide developed by Novo Nordisk (Rybelsus®) for the treatment of type 2 diabetes. Subsequently, the octreotide capsule (Mycapssa®), developed through Chiasma's Transient Permeation Enhancer (TPE) technology, also received FDA approval in 2020 for the treatment of acromegaly. These two oral peptide products have been a significant success; however, a major obstacle to their oral delivery remains the poor permeability of peptides through the intestinal epithelium. Therefore, gastrointestinal permeation enhancers are of great relevance for the development of subsequent oral peptide products. Sodium salcaprozate (SNAC) and sodium caprylate (C8) have been used as gastrointestinal permeation enhancers for semaglutide and octreotide, respectively. Herein, we briefly review two approved products, Rybelsus® and Mycapssa®, and discuss the permeation properties of SNAC and medium chain fatty acids, sodium caprate (C10) and C8, focusing on Eligen technology using SNAC, TPE technology using C8, and gastrointestinal permeation enhancement technology (GIPET) using C10.
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Hibino E, Goda N, Hisada M, Tenno T, Hiroaki H. Direct Inhibition of the First PDZ Domain of ZO-1 by Glycyrrhizin is a Possible Mechanism of Tight Junction Opening of Caco-2 Cells. Food Funct 2022; 13:1953-1964. [DOI: 10.1039/d1fo03062k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Glycyrrhizin (GL) is known to exhibit a variety of useful pharmacological activities, including anti-inflammation, anti-hepatotoxicity, and enhancement of intestinal drug absorption. GL has been reported to modify the assembly of...
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Li Q, Xin M, Wu X, Lei B. A nano-phytochemical ophthalmic solution for marked improvement of corneal wound healing in healthy or diabetic mice. Nanomedicine (Lond) 2021; 17:151-165. [PMID: 34927467 DOI: 10.2217/nnm-2021-0417] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Aim: To formulate a novel nano-phytochemical ophthalmic solution to promote corneal wound healing. Methods: Dipotassium glycyrrhizinate (DG) and palmatine (PAL) were used to formulate this formulation marked as DG-PAL, and its efficacy and mechanisms for promoting corneal wound healing were evaluated in mice. Results: DG-PAL was easily fabricated with excellent physical profiles. In in vivo efficiency evaluations, DG-PAL demonstrated an excellent promoting effect on corneal epithelial/nerve wound healing in both healthy and diabetic mice. These effects were involved in the DG-PAL-induced decreased expression levels of HMGB1 and its signaling-related factors in the corneas and trigeminal neurons of the healthy or diabetic mice. Conclusion: DG-PAL possibly represents a promising ophthalmic solution for promoting corneal wound healing.
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Affiliation(s)
- Qiqi Li
- Henan Eye Institute, Henan Eye Hospital, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, China.,College of Chemical Engineering, Qingdao University of Science & Technology, Qingdao, China
| | - Meng Xin
- Department of Ophthalmology, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, 264100, China
| | - Xianggen Wu
- College of Chemical Engineering, Qingdao University of Science & Technology, Qingdao, China
| | - Bo Lei
- Henan Eye Institute, Henan Eye Hospital, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, China
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Rashid M, Malik MY, Singh SK, Chaturvedi S, Gayen JR, Wahajuddin M. Bioavailability Enhancement of Poorly Soluble Drugs: The Holy Grail in Pharma Industry. Curr Pharm Des 2019; 25:987-1020. [DOI: 10.2174/1381612825666190130110653] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Accepted: 01/24/2019] [Indexed: 02/07/2023]
Abstract
Background:
Bioavailability, one of the prime pharmacokinetic properties of a drug, is defined as the
fraction of an administered dose of unchanged drug that reaches the systemic circulation and is used to describe
the systemic availability of a drug. Bioavailability assessment is imperative in order to demonstrate whether the
drug attains the desirable systemic exposure for effective therapy. In recent years, bioavailability has become
the subject of importance in drug discovery and development studies.
Methods:
A systematic literature review in the field of bioavailability and the approaches towards its enhancement
have been comprehensively done, purely focusing upon recent papers. The data mining was performed
using databases like PubMed, Science Direct and general Google searches and the collected data was exhaustively
studied and summarized in a generalized manner.
Results:
The main prospect of this review was to generate a comprehensive one-stop summary of the numerous
available approaches and their pharmaceutical applications in improving the stability concerns, physicochemical
and mechanical properties of the poorly water-soluble drugs which directly or indirectly augment their bioavailability.
Conclusion:
The use of novel methods, including but not limited to, nano-based formulations, bio-enhancers,
solid dispersions, lipid-and polymer-based formulations which provide a wide range of applications not only
increases the solubility and permeability of the poorly bioavailable drugs but also improves their stability, and
targeting efficacy. Although, these methods have drastically changed the pharmaceutical industry demand for the
newer potential methods with better outcomes in the field of pharmaceutical science to formulate various dosage
forms with adequate systemic availability and improved patient compliance, further research is required.
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Affiliation(s)
- Mamunur Rashid
- Pharmaceutics and Pharmacokinetics Division, CSIR-CDRI, Lucknow, India
| | - Mohd Yaseen Malik
- Pharmaceutics and Pharmacokinetics Division, CSIR-CDRI, Lucknow, India
| | - Sandeep K. Singh
- Pharmaceutics and Pharmacokinetics Division, CSIR-CDRI, Lucknow, India
| | - Swati Chaturvedi
- Pharmaceutics and Pharmacokinetics Division, CSIR-CDRI, Lucknow, India
| | - Jiaur R Gayen
- Pharmaceutics and Pharmacokinetics Division, CSIR-CDRI, Lucknow, India
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Su X, Wu L, Hu M, Dong W, Xu M, Zhang P. Glycyrrhizic acid: A promising carrier material for anticancer therapy. Biomed Pharmacother 2017; 95:670-678. [PMID: 28886526 DOI: 10.1016/j.biopha.2017.08.123] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 08/11/2017] [Accepted: 08/29/2017] [Indexed: 12/13/2022] Open
Abstract
Drug delivery systems have become an integral part of anticancer drugs today. Design of novel drug carriers may lead to significant enhancement in antineoplastic therapy. Glycyrrhizic acid (GL), which is the most important active ingredient extracted from the licorice root shows great potential as a carrier material in this field. Recent studies have indicated that the combination of GL and first-line drugs had better therapeutic effects on cancers. GL showed a series of anti-cancer-related pharmacological activities, such as broad-spectrum anti-cancer ability, resistance to the tissue toxicity caused by chemotherapy and radiation, drug absorption enhancing effects and anti-multidrug resistance (MDR) mechanisms, as a carrier material in drug delivery systems. This review introduced the current research progress on pharmacological mechanisms of GL and development of GL-based drug carriers in anti-cancer field to provide basis for the application prospects of GL. The design of novel GL-based drug delivery systems will bring new opportunities and challenges to anti-cancer therapy.
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Affiliation(s)
- Xitong Su
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Lei Wu
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Mingming Hu
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Wenxiang Dong
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Meng Xu
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Peng Zhang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China.
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8
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Singh A, Zhao K. Herb-Drug Interactions of Commonly Used Chinese Medicinal Herbs. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2017; 135:197-232. [PMID: 28807159 DOI: 10.1016/bs.irn.2017.02.010] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
With more and more popular use of traditional herbal medicines, in particular Chinese herbal medicines, herb-drug interactions have become a more and more important safety issue in the clinical applications of the conventional drugs. Researches in this area are increasing very rapidly. Herb-drug interactions are complicated due to the fact that multiple chemical components are involved, and these compounds may possess diverse pharmacological activities. Interactions can be in both pharmacokinetics and pharmacodynamics. Abundant studies focused on pharmacokinetic interactions of herbs and drugs. Herbs may affect the behavior of the concomitantly used drugs by changing their absorption, distribution, metabolism, and excretion. Studies on pharmacodynamics interactions of herbs and drugs are still very limited. Herb-drug interactions are potentially causing changes in drug levels and drug activities and leading to either therapeutic failure or toxicities. Sometime it can be fatal. The exposures to drugs, lacking of knowledge in the potential adverse herb-drug interactions, will put big risk to patients' safety in medical services. On the contrary, some interactions may be therapeutically beneficial. It may be used to help develop new therapeutic strategies in the future. This chapter is trying to review the development in the area of herb-drug interactions based on the recently published research findings. Information on the potential interactions among the commonly used Chinese medicinal herbs and conventional drugs is summarized in this chapter.
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Affiliation(s)
- Amrinder Singh
- Traditional Chinese Herbal Medicine Programme, Middlesex University, The Borough, Hendon, London, United Kingdom
| | - Kaicun Zhao
- Traditional Chinese Herbal Medicine Programme, Middlesex University, The Borough, Hendon, London, United Kingdom.
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9
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Singh S, Tripathi JS, Rai NP. An appraisal of the bioavailability enhancers in Ayurveda in the light of recent pharmacological advances. Ayu 2016; 37:3-10. [PMID: 28827948 PMCID: PMC5541464 DOI: 10.4103/ayu.ayu_11_15] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
The concept of bioavailability enhancer is new to the modern system of medicine. Basically, this concept originated in Ayurveda and being used in this system of medicine since centuries. Bio-enhancers augment the bioavailability or biological activity of drugs when co-administered with principal drug at low doses. Ayurveda is using several drugs such as Piper longum Linn., Zingiber officinale Rosc., and Glycyrhhiza glabra Linn. as bio-enhancers and different methods for bio-enhancing since centuries. The bio-enhancement leads to reduction in therapeutic dose of principal drug, thus reducing the possibilities of toxicity and side effects of drug, potentiating the efficacy, reducing the resistance, decreasing the requirement of raw material for drug manufacture, and ultimately benefitting to the world economy by reducing the treatment cost. This review article attempts to consolidate different drugs as well as methods being used traditionally for enhancing bioavailability in Ayurvedic system of medicine and to discuss their possible mechanism of action. Authentic subject material has been reviewed from different Ayurvedic texts and from different related research and review articles. Thus, it is a humble effort to explore the different aspects of bio-enhancers including therapeutic techniques such as Shodhana, the drugs such as Pippali, and properties such as Yogavahi and Rasayana, which have been described in Ayurveda along with their mechanism of action and uses wherever available.
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Affiliation(s)
- Satyapal Singh
- Department of Kayachikitsa, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - J S Tripathi
- Department of Kayachikitsa, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - N P Rai
- Department of Kayachikitsa, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
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Ajazuddin, Alexander A, Qureshi A, Kumari L, Vaishnav P, Sharma M, Saraf S, Saraf S. Role of herbal bioactives as a potential bioavailability enhancer for Active Pharmaceutical Ingredients. Fitoterapia 2014; 97:1-14. [PMID: 24862064 DOI: 10.1016/j.fitote.2014.05.005] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Revised: 05/15/2014] [Accepted: 05/16/2014] [Indexed: 01/21/2023]
Abstract
The current review emphasizes on the herbal bioenhancers which themselves do not possess inherent pharmacological activity of their own but when co-administered with Active Pharmaceutical Ingredients (API), enhances their bioavailability and efficacy. Herbal bioenhancers play a crucial role in enhancing the bioavailability and bioefficacy of different classes of drugs, such as antihypertensives, anticancer, antiviral, antitubercular and antifungal drugs at low doses. This paper highlights various natural compounds that can be utilized as an efficient bioenhancer. Several herbal compounds including piperine, quercetin, genistein, naringin, sinomenine, curcumin, and glycyrrhizin have demonstrated capability to improve the pharmacokinetic parameters of several potent API. This article also focuses on various United States patents on herbal bioenhancers, which has proved to be beneficial in improving oral absorption of nutraceuticals like vitamins, minerals, amino acids and certain herbal compounds. The present paper also describes proposed mechanism of action, which mainly includes absorption process, drug metabolism, and action on drug target. The herbal bioenhancers are easily available, safe, free from side effects, minimizes drug toxicity, shortens the duration of treatment, lowers the drug resistance problems and minimizes the cost of treatment. Inspite of the fact that herbal bioenhancers provide an innovative concept for enhancing the bioavailability of several potent drugs, there are numerous bioenhancers of herbal origin that are yet to be explored in several vital areas. These bioenhancers must also be implied to enhance the bioavailability and bioefficacy through routes other than the oral route of drug delivery. There is a vast array of unexploited plants which can be investigated for their drug bioenhancing potency. The toxicity profiles of these herbal bioenhancers must not be overlooked. Researches must be carried out to solve these issues and to deliver a safe and effective dose of drugs to attain desired pharmacological response.
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Affiliation(s)
- Ajazuddin
- Rungta College of Pharmaceutical Sciences and Research, Kohka-Kurud Road, Bhilai, Chhattisgarh 490024, India
| | - Amit Alexander
- Rungta College of Pharmaceutical Sciences and Research, Kohka-Kurud Road, Bhilai, Chhattisgarh 490024, India
| | - Azra Qureshi
- Rungta College of Pharmaceutical Sciences and Research, Kohka-Kurud Road, Bhilai, Chhattisgarh 490024, India
| | - Leena Kumari
- Rungta College of Pharmaceutical Sciences and Research, Kohka-Kurud Road, Bhilai, Chhattisgarh 490024, India
| | - Pramudita Vaishnav
- Rungta College of Pharmaceutical Sciences and Research, Kohka-Kurud Road, Bhilai, Chhattisgarh 490024, India
| | - Mukesh Sharma
- Rungta College of Pharmaceutical Sciences and Research, Kohka-Kurud Road, Bhilai, Chhattisgarh 490024, India
| | - Swarnlata Saraf
- University Institute of Pharmacy, Pt. Ravishankar Shukla University, Raipur, Chhattisgarh 492010, India
| | - Shailendra Saraf
- University Institute of Pharmacy, Pt. Ravishankar Shukla University, Raipur, Chhattisgarh 492010, India.
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11
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A permeation enhancer for increasing transport of therapeutic macromolecules across the intestine. J Control Release 2013; 172:541-9. [PMID: 23680288 DOI: 10.1016/j.jconrel.2013.05.002] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2013] [Revised: 04/29/2013] [Accepted: 05/06/2013] [Indexed: 01/03/2023]
Abstract
Delivery of therapeutic macromolecules is limited by the physiological limitations of the gastrointestinal tract including poor intestinal permeability, low pH and enzymatic activity. Several permeation enhancers have been proposed to enhance intestinal permeability of macromolecules; however their utility is often hindered by toxicity and limited potency. Here, we report on a novel permeation enhancer, Dimethyl palmitoyl ammonio propanesulfonate (PPS), with excellent enhancement potential and minimal toxicity. PPS was tested for dose- and time-dependent cytotoxicity, delivery of two model fluorescent molecules, sulforhodamine-B and FITC-insulin in vitro, and absorption enhancement of salmon calcitonin (sCT) in vivo. Caco-2 studies revealed that PPS is an effective enhancer of macromolecular transport while being minimally toxic. TEER measurements in Caco-2 monolayers confirmed the reversibility of the effect of PPS. Confocal microscopy studies revealed that molecules permeate via both paracellular and transcellular pathways in the presence of PPS. In vivo studies in rats showed that PPS enhanced relative bioavailability of sCT by 45-fold after intestinal administration. Histological studies showed that PPS does not induce damage to the intestine. PPS is an excellent permeation enhancer which provides new opportunities for developing efficacious oral/intestinal delivery systems for therapeutic macromolecules.
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12
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Kesarwani K, Gupta R. Bioavailability enhancers of herbal origin: an overview. Asian Pac J Trop Biomed 2013; 3:253-66. [PMID: 23620848 PMCID: PMC3634921 DOI: 10.1016/s2221-1691(13)60060-x] [Citation(s) in RCA: 197] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Accepted: 03/07/2013] [Indexed: 01/08/2023] Open
Abstract
Recently, the use of herbal medicines has been increased all over the world due to their therapeutic effects and fewer adverse effects as compared to the modern medicines. However, many herbal drugs and herbal extracts despite of their impressive in-vitro findings demonstrates less or negligible in-vivo activity due to their poor lipid solubility or improper molecular size, resulting in poor absorption and hence poor bioavailability. Nowadays with the advancement in the technology, novel drug delivery systems open the door towards the development of enhancing bioavailability of herbal drug delivery systems. For last one decade many novel carriers such as liposomes, microspheres, nanoparticles, transferosomes, ethosomes, lipid based systems etc. have been reported for successful modified delivery of various herbal drugs. Many herbal compounds including quercetin, genistein, naringin, sinomenine, piperine, glycyrrhizin and nitrile glycoside have demonstrated capability to enhance the bioavailability. The objective of this review is to summarize various available novel drug delivery technologies which have been developed for delivery of drugs (herbal), and to achieve better therapeutic response. An attempt has also been made to compile a profile on bioavailability enhancers of herbal origin with the mechanism of action (wherever reported) and studies on improvement in drug bioavailability, exhibited particularly by natural compounds.
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Affiliation(s)
| | - Rajiv Gupta
- *Corresponding author: Rajiv Gupta, Professor & Dean, School of Pharmacy, BBD University, Lucknow. U.P., India. Tel: 9839278227 E-mail:
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Maher S, Leonard TW, Jacobsen J, Brayden DJ. Safety and efficacy of sodium caprate in promoting oral drug absorption: from in vitro to the clinic. Adv Drug Deliv Rev 2009; 61:1427-49. [PMID: 19800376 DOI: 10.1016/j.addr.2009.09.006] [Citation(s) in RCA: 162] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2009] [Revised: 09/21/2009] [Accepted: 09/24/2009] [Indexed: 12/12/2022]
Abstract
A major challenge in oral drug delivery is the development of novel dosage forms to promote absorption of poorly permeable drugs across the intestinal epithelium. To date, no absorption promoter has been approved in a formulation specifically designed for oral delivery of Class III molecules. Promoters that are designated safe for human consumption have been licensed for use in a recently approved buccal insulin spray delivery system and also for many years as part of an ampicillin rectal suppository. Unlike buccal and rectal delivery, oral formulations containing absorption promoters have the additional technical hurdle whereby the promoter and payload must be co-released in high concentrations at the small intestinal epithelium in order to generate significant but rapidly reversible increases in permeability. An advanced promoter in the clinic is the medium chain fatty acid (MCFA), sodium caprate (C(10)), a compound already approved as a food additive. We discuss how it has evolved to a matrix tablet format suitable for administration to humans under the headings of mechanism of action at the cellular and tissue level as well as in vitro and in vivo efficacy and safety studies. In specific clinical examples, we review how C(10)-based formulations are being tested for oral delivery of bisphosphonates using Gastro Intestinal Permeation Enhancement Technology, GIPET (Merrion Pharmaceuticals, Ireland) and in a related solid dose format for antisense oligonucleotides (ISIS Pharmaceuticals, USA).
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Affiliation(s)
- Sam Maher
- UCD School of Agriculture, Food Science and Veterinary Medicine, University College Dublin, Belfield, Dublin 4, Ireland
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Maher S, Wang X, Bzik V, McClean S, Brayden DJ. Evaluation of intestinal absorption and mucosal toxicity using two promoters. II. Rat instillation and perfusion studies. Eur J Pharm Sci 2009; 38:301-11. [DOI: 10.1016/j.ejps.2009.07.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2009] [Revised: 06/09/2009] [Accepted: 07/26/2009] [Indexed: 10/20/2022]
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15
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Enhanced oral absorption of salmon calcitonin-encapsulated PLGA nanoparticles by adding organic substances. KOREAN J CHEM ENG 2009. [DOI: 10.1007/s11814-009-0020-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Nakamura T, Yamada M, Teshima M, Nakashima M, To H, Ichikawa N, Sasaki H. Electrophysiological Characterization of Tight Junctional Pathway of Rabbit Cornea Treated with Ophthalmic Ingredients. Biol Pharm Bull 2007; 30:2360-4. [DOI: 10.1248/bpb.30.2360] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Tadahiro Nakamura
- Department of Hospital Pharmacy, Nagasaki University Hospital of Medicine and Dentistry
| | - Mikiko Yamada
- Department of Clinical Pharmacy, Graduate School of Biomedical Sciences, Nagasaki University
| | - Mugen Teshima
- Department of Hospital Pharmacy, Nagasaki University Hospital of Medicine and Dentistry
| | - Mikiro Nakashima
- Department of Clinical Pharmacy, Graduate School of Biomedical Sciences, Nagasaki University
| | - Hideto To
- Department of Hospital Pharmacy, Nagasaki University Hospital of Medicine and Dentistry
| | - Nobuhiro Ichikawa
- Department of Hospital Pharmacy, Nagasaki University Hospital of Medicine and Dentistry
| | - Hitoshi Sasaki
- Department of Hospital Pharmacy, Nagasaki University Hospital of Medicine and Dentistry
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Leonard TW, Lynch J, McKenna MJ, Brayden DJ. Promoting absorption of drugs in humans using medium-chain fatty acid-based solid dosage forms: GIPET™. Expert Opin Drug Deliv 2006; 3:685-92. [PMID: 16948563 DOI: 10.1517/17425247.3.5.685] [Citation(s) in RCA: 94] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
One of the most important and challenging goals in drug delivery is overcoming the poor oral absorption of high-value therapeutics that include peptides. Gastrointestinal Permeation Enhancement Technology (GIPET) attempts to address this question by safely delivering drugs across the small intestine in therapeutically relevant concentrations. GIPET is based primarily on promoting drug absorption through the use of medium-chain fatty acids, medium-chain fatty acid derivatives and microemulsion systems based on medium-chain fatty acid glycerides formulated in enteric-coated tablets or capsules. Importantly, these excipients are generally regarded as safe and the systems are formulated in such a way that there is no change in chemical composition of the active ingredient. More than 300 volunteers have been administered GIPET formulations in 16 Phase I studies of 6 separate drugs comprising both single- and repeat-dosing regimes. Oral bioavailability of alendronate, desmopressin and low-molecular-weight heparin in humans was increased using GIPET formulations compared with unformulated controls. GIPET was well tolerated by human subjects. Using fluxes of markers of epithelial permeability, the effects of GIPET on the human intestine were shown to be rapid, short-lived and reversible in vivo. These data suggest that GIPET formulations have genuine potential as a platform technology for safe and effective oral drug delivery of a wide range of poorly permeable drugs.
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Affiliation(s)
- Thomas W Leonard
- Merrion Pharmaceuticals USA, 219 Racine Drive, Suite D, Wilmington, NC 28403, USA.
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