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Dao L, Dong Y, Song L, Sa C. The Fate of 1,8-cineole as a Chemical Penetrant: A Review. Curr Drug Deliv 2024; 21:697-708. [PMID: 37165499 DOI: 10.2174/1567201820666230509101602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 02/22/2023] [Accepted: 03/13/2023] [Indexed: 05/12/2023]
Abstract
The stratum corneum continues to pose the biggest obstacle to transdermal drug delivery. Chemical penetrant, the first generation of transdermal drug delivery system, offers a lot of potential. In order to fully examine the permeation mechanism of 1,8-cineole, a natural monoterpene, this review summarizes the effects of permeation-enhancing medications on drugs that are lipophilic and hydrophilic as well as the toxicity of this substance on the skin and other tissues. For lower lipophilic drugs, 1,8-cineole appears to have a stronger osmotic-enhancing impact. An efficient and secure tactic would be to combine enhancers and dose forms. 1,8-cineole is anticipated to be further developed in the transdermal drug delivery system and even become a candidate drug for brain transport due to its permeability and low toxicity.
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Affiliation(s)
- Ligema Dao
- School of Mongolian Medicine, Inner Mongolian Medical University, Hohhot, China
| | - Yu Dong
- School of Pharmacy, Inner Mongolian Medical University, Hohhot, China
| | - Lin Song
- School of Mongolian Medicine, Inner Mongolian Medical University, Hohhot, China
| | - Chula Sa
- School of Mongolian Medicine, Inner Mongolian Medical University, Hohhot, China
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Hu H, Li D, Bai R, Zhang W, Luo H, Yu E. Chemodiversity and Bioactivity of the Essential Oils of Juniperus and Implication for Taxonomy. Int J Mol Sci 2023; 24:15203. [PMID: 37894884 PMCID: PMC10607841 DOI: 10.3390/ijms242015203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 10/03/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
The essential oils of Juniperus are highly beneficial medicinally. The present study aimed to assess the chemodiversity and bioactivity of Juniperus formosana, Juniperus przewalskii, Juniperus convallium, Juniperus tibetica, Juniperus komarovii, and Juniperus sabina essential oils from the Qinghai-Tibet Plateau. The results revealed 92 components in six essential oils: α-pinene (2.71-17.31%), sabinene (4.91-19.83%), and sylvestrene (1.84-8.58%) were the main components. Twelve components were firstly reported in Juniperus oils, indicating that the geographical location and climatic conditions of the Qinghai-Tibet Plateau produced the unique characteristics of Juniperus essential oils. The chemodiversity of Juniperus essential oils varied greatly, with J. sabina having the most recognized components (64) and the highest chemodiversity (Shannon-Wiener index of 3.07, Simpson's diversity index of 0.91, and Pielou evenness of 0.74). According to the chemodiversity of essential oils, the six plants were decided into the α-pinene chemotype (J. formosana), hedycaryol chemotype (J. przewalskii, J. komarovii, J. convallium, J. tibetica), and sabinene chemotype (J. sabina). PCA, HCA and OPLS-DA showed that J. formosana and J. sabina were distantly related to other plants, which provides a chemical basis for the classification of Juniperus plants. Furthermore, bioactivity tests exhibited certain antioxidant and antibacterial effects in six Juniperus oils. And the bioactivities of J. convallium, J. tibetica, and J. komarovvii were measured for the first time, broadening the range of applications of Juniperus. Correlation analysis of components and bioactivities showed that δ-amorphene, β-udesmol, α-muurolol, and 2-nonanone performed well in the determination of antioxidant activity, and α-pinene, camphene, β-myrcene, as well as (E)-thujone, had strong inhibitory effects on pathogenic bacteria, providing a theoretical basis for further research on these components.
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Affiliation(s)
- Huizhong Hu
- College of Forestry, Northwest A & F University, Yangling 712100, China; (H.H.); (R.B.); (W.Z.); (H.L.); (E.Y.)
- Shaanxi Key Laboratory of Economic Plant Resources Development and Utilization, Yangling 712100, China
| | - Dengwu Li
- College of Forestry, Northwest A & F University, Yangling 712100, China; (H.H.); (R.B.); (W.Z.); (H.L.); (E.Y.)
- Shaanxi Key Laboratory of Economic Plant Resources Development and Utilization, Yangling 712100, China
| | - Ruxue Bai
- College of Forestry, Northwest A & F University, Yangling 712100, China; (H.H.); (R.B.); (W.Z.); (H.L.); (E.Y.)
- Shaanxi Key Laboratory of Economic Plant Resources Development and Utilization, Yangling 712100, China
| | - Weiping Zhang
- College of Forestry, Northwest A & F University, Yangling 712100, China; (H.H.); (R.B.); (W.Z.); (H.L.); (E.Y.)
- Shaanxi Key Laboratory of Economic Plant Resources Development and Utilization, Yangling 712100, China
| | - Hong Luo
- College of Forestry, Northwest A & F University, Yangling 712100, China; (H.H.); (R.B.); (W.Z.); (H.L.); (E.Y.)
- Shaanxi Key Laboratory of Economic Plant Resources Development and Utilization, Yangling 712100, China
| | - Enping Yu
- College of Forestry, Northwest A & F University, Yangling 712100, China; (H.H.); (R.B.); (W.Z.); (H.L.); (E.Y.)
- Shaanxi Key Laboratory of Economic Plant Resources Development and Utilization, Yangling 712100, China
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Zhang Y, Liu C, E. D, Jia W, Sun P, Li H, Yu G, Quan P, Liu M, Fang L. The enantioselective enhancing effect and mechanistic insights of chiral enhancers in transdermal drug delivery. Asian J Pharm Sci 2023; 18:100849. [PMID: 37915759 PMCID: PMC10616145 DOI: 10.1016/j.ajps.2023.100849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/19/2023] [Accepted: 09/11/2023] [Indexed: 11/03/2023] Open
Abstract
Overlook of chiral consideration in transdermal drug delivery increases administrated dose and risk of side effects, decreasing therapeutical effects. To improve the transdermal delivery efficiency of eutomer, this work focused on investigating the law and mechanism of enantioselective enhancing effects of chiral permeation enhancers on drug enantiomers. Chiral nonsteroidal anti-inflammatory drugs and terpene permeation enhancers were selected as model drug and enhancers. The results indicated that the L-isomer of permeation enhancers increased the skin absorption of S-enantiomer of drug and D-isomer improve the permeation of R-enantiomer, in which the enhancement effect (ER) of L-menthol on S-enantiomer (ER = 3.23) was higher than that on R-enantiomer (ER = 1.49). According to the pharmacokinetics results, L-menthol tended to enhance the permeation of S-enantiomer better than R-enantiomer (2.56 fold), and showed excellent in vitro/in vivo correlations. The mechanism study showed that L-isomer of permeation enhancers improved the permeation of S-enantiomer by increasing the retention, but the D-isomer by improving partition for better permeation. Enantioselective mechanism indicated that the weaker chiral H-bond interaction between drug-chiral enhancers was caused by the enantiomeric conformation. Additionally, stronger chiral enhancers-skin interaction between L-isomer and S-conformation of ceramide produced better enhancing effects. In conclusion, enantioselective interaction of chiral drug-chiral enhancers and chiral enhancers-chiral skin played a critical role in transdermal drug delivery, rational utilization of which contributed to improving the uptake of eutomer and inhibiting distomers to decrease a half of dose and side effects, increasing transdermal therapeutical efficiency.
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Affiliation(s)
- Yang Zhang
- Department of Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Chao Liu
- Department of Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Dongxiao E.
- Department of Organic Chemistry, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Wenxuan Jia
- Department of Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Peng Sun
- Department of Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Hui Li
- Department of Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Guojing Yu
- Department of Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Peng Quan
- Department of Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Mingzhe Liu
- Department of Organic Chemistry, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Liang Fang
- Department of Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang 110016, China
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Zhang Y, Liu X, Yu G, Gui H, Chi J, Liu S, Fang L, Liu M. Innovative insight into the mechanism of enantioselective skin permeation for chiral drugs. Expert Opin Drug Deliv 2023; 20:1643-1656. [PMID: 38112192 DOI: 10.1080/17425247.2023.2294877] [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: 09/08/2023] [Accepted: 11/24/2023] [Indexed: 12/21/2023]
Abstract
OBJECTIVES A profound comprehension of the molecular mechanisms underpinning the enantioselective transdermal permeation of chiral drugs is critical in the design and assessment of transdermal preparations. The primary objective of this study is to investigate the distinct skin permeation behaviors exhibited by enantiomers of non-steroidal anti-inflammatory drugs (NSAIDs) and elucidate the intricate molecular mechanism at play. METHODS In vitro and in vivo transdermal permeation studies of chiral NSAIDs were performed using transdermal patch and solution system. Chiral interaction between NSAIDs enantiomers and synthesized chiral ceramide present in the skin was characterized to clarify the different transdermal behaviors. RESULTS The S-enantiomers of NSAIDs exhibited higher permeability through the skin than R-enantiomer in vitro (1.5-fold) and in vivo (2.0-fold), which was attributed to a stronger interaction between S-enantiomer and ceramide caused by more favorable spatial conformations. S-enantiomer required lower activation energy (24.4 kJ/mol) and Gibbs energy (43.3 kJ/mol), which was favorable in forming the H-bond with ceramide in the skin, resulting in more permeation. CONCLUSION This research furnished an innovative comprehension of the molecular underpinnings governing the enantioselective permeation of drug enantiomers through the skin, fostering the minimization of undesired enantiomer ingestion (distomers) and amplifying therapeutic efficiency.
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Affiliation(s)
- Yang Zhang
- Department of Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang, Liaoning, China
| | - Xiaowen Liu
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang, Liaoning, China
| | - Guojing Yu
- Department of Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang, Liaoning, China
| | - Hongzhe Gui
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang, Liaoning, China
| | - Jingteng Chi
- Department of Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang, Liaoning, China
| | - Shuhan Liu
- Department of Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang, Liaoning, China
| | - Liang Fang
- Department of Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang, Liaoning, China
| | - Mingzhe Liu
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang, Liaoning, China
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Chen Y, Zhang LL, Wang W, Wang G. Recent updates on bioactive properties of α-terpineol. JOURNAL OF ESSENTIAL OIL RESEARCH 2023. [DOI: 10.1080/10412905.2023.2196515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/01/2023]
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Effect of Penetration Enhancers on Transdermal Delivery of Oxcarbazepine, an Antiepileptic Drug Using Microemulsions. Pharmaceutics 2023; 15:pharmaceutics15010183. [PMID: 36678811 PMCID: PMC9864939 DOI: 10.3390/pharmaceutics15010183] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 12/19/2022] [Accepted: 01/01/2023] [Indexed: 01/06/2023] Open
Abstract
Oxcarbazepine (OXC) is an anticonvulsant drug, indicated for the treatment of the neurological disorder, epilepsy. The objective of the present study was to evaluate the transdermal delivery of OXC from microemulsions using different penetration enhancers. Transcutol® P (TRC), oleic acid (OA), cineole (cin), Labrasol (LS), Tween 80 (T80) and N-Methyl-Pyrrolidone (NMP) were used as penetration enhancers as well as microemulsion components. Simple formulations of OXC in propylene glycol (PG) incorporating various penetration enhancers and combination of penetration enhancers were also evaluated for transdermal delivery. Drug delivery and penetration enhancement were studied using human cadaver skin on Franz diffusion cells. The results showed that all penetration enhancers improved the rate of permeation of OXC compared to the control. The flux of drug delivery from the various formulations was found to be, in decreasing order, cin > OA + TRC > NMP > TRC > OA. Overall, microemulsions prepared using cineole, Tween 80 and Transcutol® P (TRC) were shown to be provide the best penetration enhancement for OXC.
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Kumar B, Pandey M, Aggarwal R, Sahoo PK. A comprehensive review on invasomal carriers incorporating natural terpenes for augmented transdermal delivery. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2022. [DOI: 10.1186/s43094-022-00440-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Abstract
Background
Transdermal drug delivery is one of the most widely used drug administration routes, which offer several advantages over other routes of drug delivery. The apical layer of the skin called the stratum corneum is the most dominant obstacle in the transdermal drug delivery, which restricts the passage of drugs across the skin. Considerable strategies have been applied to enhance the rate of permeation across the epithelial cells; however, the most widely used strategy is the use of sorption boosters, also known as permeation enhancers.
Main body
Terpenes were considered as efficient skin permeation enhancers and are generally recognized as safe as per Food and Drug Administration. Terpenes improve the permeability of drugs either by destructing the stratum corneum’s tightly packed lipid framework, excessive diffusivity of drug in cell membrane or by rampant drug partitioning into epithelial cells. Various vesicular systems have been developed and utilized for the transdermal delivery of many drugs. Invasomes are one such novel vesicular system developed which are composed of phospholipids, ethanol and terpenes. The combined presence of ethanol and terpenes provides exceptional flexibility to the vesicles and improves the permeation across the barrier offered due to the stratum corneum as both ethanol and terpenes act as permeation enhancers. Therefore, utilization of invasomes as carriers to facilitate higher rate of drug permeation through the skin can be a very useful approach to improve transdermal drug delivery of a drug.
Conclusion
The paper focuses on a broad updated view of terpenes as effective permeation enhancers and invasomes along with their applications in the pharmaceutical formulations.
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Boix-Montañés A, Celma-Lezcano C, Obach-Vidal R, Peraire-Guitart C. Collaborative permeation of drug and excipients in transdermal formulations. In vitro scrutiny for ethanol:limonene combinations. Eur J Pharm Biopharm 2022; 181:239-248. [PMID: 36384197 DOI: 10.1016/j.ejpb.2022.11.004] [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: 09/07/2022] [Revised: 10/23/2022] [Accepted: 11/08/2022] [Indexed: 11/15/2022]
Abstract
Enhancement of skin permeation of drugs is affected by the simultaneous co-permeation of excipients that hinder the predictivity of in vitro tests. The collaborative effects of two permeation enhancers (ethanol and d-limonene) of a lipophilic drug (alprazolam) have been simultaneously assessed in human skin under different in vitro conditions: integrated setups of diffusion cell experiments with selective concentration gradients of permeants (asymmetric) or without (symmetric) have been combined with coadministration dosages (all-in-one) at different concentrations or short-time skin pretreatment to scrutiny this mutual performance. Findings: Drug permeation is increased under moderated supersaturation but reaches a stationary level above 33 % of its solubility. Ethanol in absence of a concentration gradient increases ca.5 times basal drug permeation. Limonene until 20 % permeates human skin proportionally to its donor concentration but its effect does not depend on ethanol in symmetric conditions and is based on skin imbibition rather than on a carry-on effect. Simultaneous permeation of ethanol and limonene reaches a stationary state after 1.5 h, enough time to achieve maximal enhancement of alprazolam permeation. Additive enhancement is based on ethanol solubilisation maximized by skin saturation of terpene. Complementary analyses of skin disruption published in the literature are in line with these assessments and consolidate them.
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Affiliation(s)
- A Boix-Montañés
- Departament de Farmàcia i Tecnologia farmacèutica, Facultat de Farmàcia, Universitat de Barcelona, Av. Joan XXIII, 27, 08028 Barcelona, Spain.
| | - C Celma-Lezcano
- Ipsen Pharma, Pharmacokinetics Research Center, Sant Feliu de Llobregat (Barcelona, España), Av. Laureà Miró 395, 08980 Sant Feliu de Llobregat, Spain
| | - R Obach-Vidal
- Ipsen Pharma, Pharmacokinetics Research Center, Sant Feliu de Llobregat (Barcelona, España), Av. Laureà Miró 395, 08980 Sant Feliu de Llobregat, Spain
| | - C Peraire-Guitart
- Departament de Farmàcia i Tecnologia farmacèutica, Facultat de Farmàcia, Universitat de Barcelona, Av. Joan XXIII, 27, 08028 Barcelona, Spain; Ipsen Pharma, Pharmacokinetics Research Center, Sant Feliu de Llobregat (Barcelona, España), Av. Laureà Miró 395, 08980 Sant Feliu de Llobregat, Spain
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Alkilani AZ, Nasereddin J, Hamed R, Nimrawi S, Hussein G, Abo-Zour H, Donnelly RF. Beneath the Skin: A Review of Current Trends and Future Prospects of Transdermal Drug Delivery Systems. Pharmaceutics 2022; 14:1152. [PMID: 35745725 PMCID: PMC9231212 DOI: 10.3390/pharmaceutics14061152] [Citation(s) in RCA: 50] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 05/16/2022] [Accepted: 05/24/2022] [Indexed: 02/04/2023] Open
Abstract
The ideal drug delivery system has a bioavailability comparable to parenteral dosage forms but is as convenient and easy to use for the patient as oral solid dosage forms. In recent years, there has been increased interest in transdermal drug delivery (TDD) as a non-invasive delivery approach that is generally regarded as being easy to administer to more vulnerable age groups, such as paediatric and geriatric patients, while avoiding certain bioavailability concerns that arise from oral drug delivery due to poor absorbability and metabolism concerns. However, despite its many merits, TDD remains restricted to a select few drugs. The physiology of the skin poses a barrier against the feasible delivery of many drugs, limiting its applicability to only those drugs that possess physicochemical properties allowing them to be successfully delivered transdermally. Several techniques have been developed to enhance the transdermal permeability of drugs. Both chemical (e.g., thermal and mechanical) and passive (vesicle, nanoparticle, nanoemulsion, solid dispersion, and nanocrystal) techniques have been investigated to enhance the permeability of drug substances across the skin. Furthermore, hybrid approaches combining chemical penetration enhancement technologies with physical technologies are being intensively researched to improve the skin permeation of drug substances. This review aims to summarize recent trends in TDD approaches and discuss the merits and drawbacks of the various chemical, physical, and hybrid approaches currently being investigated for improving drug permeability across the skin.
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Affiliation(s)
- Ahlam Zaid Alkilani
- Department of Pharmacy, Faculty of Pharmacy, Zarqa University, Zarqa 13110, Jordan; (J.N.); (S.N.); (G.H.); (H.A.-Z.)
| | - Jehad Nasereddin
- Department of Pharmacy, Faculty of Pharmacy, Zarqa University, Zarqa 13110, Jordan; (J.N.); (S.N.); (G.H.); (H.A.-Z.)
| | - Rania Hamed
- Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman 11733, Jordan;
| | - Sukaina Nimrawi
- Department of Pharmacy, Faculty of Pharmacy, Zarqa University, Zarqa 13110, Jordan; (J.N.); (S.N.); (G.H.); (H.A.-Z.)
| | - Ghaid Hussein
- Department of Pharmacy, Faculty of Pharmacy, Zarqa University, Zarqa 13110, Jordan; (J.N.); (S.N.); (G.H.); (H.A.-Z.)
| | - Hadeel Abo-Zour
- Department of Pharmacy, Faculty of Pharmacy, Zarqa University, Zarqa 13110, Jordan; (J.N.); (S.N.); (G.H.); (H.A.-Z.)
| | - Ryan F. Donnelly
- Medical Biology Centre, School of Pharmacy, Queen’s University Belfast, Belfast BT7 1NN, UK;
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Zhang L, Chen Y, Li Z, Li X, Fan G. Bioactive properties of the aromatic molecules of spearmint (Mentha spicata L.) essential oil: a review. Food Funct 2022; 13:3110-3132. [DOI: 10.1039/d1fo04080d] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Spearmint belongs to the genus Mentha in the family Labiateae (Lamiaceae), which is wildly cultivated worldwide for its remarkable aroma and commercial value. The aromatic molecules of spearmint essential oil,...
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Martínez-Segoviano IDJ, Ganem-Rondero A. Enhancement of the transdermal delivery of zidovudine by pretreating the skin with two physical enhancers: microneedles and sonophoresis. ACTA ACUST UNITED AC 2021; 29:279-290. [PMID: 34216369 DOI: 10.1007/s40199-021-00402-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 05/25/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Zidovudine (AZT) has been the most widely used drug for antiretroviral therapy. In order to improve the therapy with this drug, different alternatives have been proposed, such as the transdermal administration. The use of permeation enhancers is necessary to favor the passage of this drug through the skin, due to its physicochemical properties and to the natural permeation barrier imposed by the skin. OBJECTIVES To evaluate the effect of two permeation enhancers, sonophoresis and microneedles, on the permeability of AZT through the skin. METHODS Permeation studies with an AZT solution were performed using pigskin clamped in Franz-type cells. Sonophoresis was applied under different conditions (i.e., amplitude, duty cycle and application time), selected according to an experimental design, where the response variables were the increase in temperature of the skin surface and the increase in transepidermal water loss. ATR-FTIR was also used to demonstrate the effect of enhancers on membrane components. RESULTS The permeability of AZT through intact skin was very poor, with a very long lag time. Pretreatment of the skin with sonophoresis increased AZT transport significantly, reducing the lag time. The maximum flux (27.52 µgcm-2 h-1) and the highest total amount permeated (about 624 µg/cm2) were obtained when applying sonophoresis in continuous mode, with an amplitude of 20%, and an application time of 2 min. Sonophoresis appears to have an impact on stratum corneum proteins. The use of microneedles further increased the flux (30.41 µgcm-2 h-1) and the total amount permeated (about 916 µg/cm2), relative to sonophoresis. CONCLUSION The results are encouraging in terms of promoting AZT transport through the skin using sonophoresis or microneedles as permeation enhancers.
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Affiliation(s)
- Irene de Jesús Martínez-Segoviano
- División de Estudios de Posgrado (Tecnología Farmacéutica), Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Av. 1o de Mayo s/n, 54740, Cuautitlán Izcalli, Estado de México, Mexico
| | - Adriana Ganem-Rondero
- División de Estudios de Posgrado (Tecnología Farmacéutica), Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Av. 1o de Mayo s/n, 54740, Cuautitlán Izcalli, Estado de México, Mexico.
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Skin barrier modulation by Hibiscus rosa-sinensis L. mucilage for transdermal drug delivery. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-021-03658-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Enhancement strategies for transdermal drug delivery systems: current trends and applications. Drug Deliv Transl Res 2021; 12:758-791. [PMID: 33474709 PMCID: PMC7817074 DOI: 10.1007/s13346-021-00909-6] [Citation(s) in RCA: 148] [Impact Index Per Article: 49.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/13/2021] [Indexed: 12/11/2022]
Abstract
Transdermal drug delivery systems have become an intriguing research topic in pharmaceutical technology area and one of the most frequently developed pharmaceutical products in global market. The use of these systems can overcome associated drawbacks of other delivery routes, such as oral and parenteral. The authors will review current trends, and future applications of transdermal technologies, with specific focus on providing a comprehensive understanding of transdermal drug delivery systems and enhancement strategies. This article will initially discuss each transdermal enhancement method used in the development of first-generation transdermal products. These methods include drug/vehicle interactions, vesicles and particles, stratum corneum modification, energy-driven methods and stratum corneum bypassing techniques. Through suitable design and implementation of active stratum corneum bypassing methods, notably microneedle technology, transdermal delivery systems have been shown to deliver both low and high molecular weight drugs. Microneedle technology platforms have proven themselves to be more versatile than other transdermal systems with opportunities for intradermal delivery of drugs/biotherapeutics and therapeutic drug monitoring. These have shown that microneedles have been a prospective strategy for improving transdermal delivery systems.
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Jyoti K, Malik G, Chaudhary M, Sharma M, Goswami M, Katare OP, Singh SB, Madan J. Chitosan and phospholipid assisted topical fusidic acid drug delivery in burn wound: Strategies to conquer pharmaceutical and clinical challenges, opportunities and future panorama. Int J Biol Macromol 2020; 161:325-335. [PMID: 32485249 DOI: 10.1016/j.ijbiomac.2020.05.230] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 05/21/2020] [Accepted: 05/26/2020] [Indexed: 02/08/2023]
Abstract
Burn is the immense public health issue globally. Low and middle income countries face extensive deaths owing to burn injuries. Availability of conventional therapies for burns has always been painful for patients as well as expensive for our health system. Pharmaceutical experts are still searching reliable, cheap, safe and effective treatment options for burn injuries. Fusidic acid is an antibiotic of choice for the management of burns. However, fusidic acid is encountering several pharmaceutical and clinical challenges like poor skin permeability and growing drug resistance against burn wound microbes like Methicillin resistant Staphylococcus aureus (MRSA). Therefore, an effort has been made to present a concise review about molecular pathway followed by fusidic acid in the treatment of burn wound infection in addition to associated pros and cons. Furthermore, we have also summarized chitosan and phospholipid based topical dermal delivery systems customized by our team for the delivery of fusidic acid in burn wound infections on case-to-case basis. However, every coin has two sides. We recommend the integration of in-silico docking techniques with natural biomacromolecules while designing stable, patient friendly and cost effective topical drug delivery systems of fusidic acid for the management of burn wound infection as future opportunities.
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Affiliation(s)
- Kiran Jyoti
- Department of Pharmaceutics, Chandigarh College of Pharmacy, Mohali, Punjab, India; IKG Punjab Technical University, Jalandhar, Punjab, India
| | - Garima Malik
- Department of Pharmaceutics, Chandigarh College of Pharmacy, Mohali, Punjab, India
| | | | - Monika Sharma
- University Institute of Pharmaceutical Sciences, Chandigarh University, Mohali, Punjab, India
| | - Manish Goswami
- University Institute of Pharmaceutical Sciences, Chandigarh University, Mohali, Punjab, India
| | - Om Prakash Katare
- University Institute of Pharmaceutical Sciences, Punjab University, Chandigarh, India
| | - Shashi Bala Singh
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Hyderabad, Telangana, India
| | - Jitender Madan
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Hyderabad, Telangana, India.
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15
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Shinde M, Bali N, Rathod S, Karemore M, Salve P. Effect of binary combinations of solvent systems on permeability profiling of pure agomelatine across rat skin: a comparative study with statistically optimized polymeric nanoparticles. Drug Dev Ind Pharm 2020; 46:826-845. [DOI: 10.1080/03639045.2020.1757697] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Mahesh Shinde
- University Department of Pharmaceutical Sciences, Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur, India
| | - Nikhil Bali
- University Department of Pharmaceutical Sciences, Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur, India
| | - Shahadev Rathod
- University Department of Pharmaceutical Sciences, Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur, India
| | - Megha Karemore
- University Department of Pharmaceutical Sciences, Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur, India
| | - Pramod Salve
- University Department of Pharmaceutical Sciences, Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur, India
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Kim B, Cho HE, Moon SH, Ahn HJ, Bae S, Cho HD, An S. Transdermal delivery systems in cosmetics. BIOMEDICAL DERMATOLOGY 2020. [DOI: 10.1186/s41702-020-0058-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
AbstractTransdermal delivery systems have been intensively studied over the past 2 decades, with the focus on overcoming the skin barrier for more effective application of pharmaceutical and cosmetic products. Although the cosmeceutical industry has made a substantial progress in the development and incorporation of new and effective actives in their products, the barrier function of the skin remains a limiting factor in the penetration and absorption of these actives. Enhancement via modification of the stratum corneum by hydration, acting of chemical enhancers on the structure of stratum corneum lipids, and partitioning and solubility effects are described. This review summarizes the advances in the development and mechanisms of action of chemical components that act as permeation enhancers, as well as the advances in appropriate vehicles, such as gels, emulsions, and vesicular delivery systems, that can be used for effective transdermal delivery.
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Yang W, Chen X, Li Y, Guo S, Wang Z, Yu X. Advances in Pharmacological Activities of Terpenoids. Nat Prod Commun 2020. [DOI: 10.1177/1934578x20903555] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Terpenoids, the most abundant compounds in natural products, are a set of important secondary metabolites in plants with diverse structures. Terpenoids play key roles in plant growth and development, response to the environment, and physiological processes. As raw materials, terpenoids were also widely used in pharmaceuticals, food, and cosmetics industries. Terpenoids possess antitumor, anti-inflammatory, antibacterial, antiviral, antimalarial effects, promote transdermal absorption, prevent and treat cardiovascular diseases, and have hypoglycemic activities. In addition, previous studies have also found that terpenoids have many potential applications, such as insect resistance, immunoregulation, antioxidation, antiaging, and neuroprotection. Terpenoids have a complex structure with diverse effects and different mechanisms of action. Activities and mechanisms of terpenoids were reviewed in this paper. The development and application prospect of terpenoid compounds were also prospected, which provides a useful reference for new drug discovery and drug design based on terpenoids.
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Affiliation(s)
| | - Xu Chen
- School of Pharmacy, Linyi University, P. R. China
| | - Yanli Li
- School of Pharmacy, Linyi University, P. R. China
| | - Shaofen Guo
- School of Pharmacy, Linyi University, P. R. China
| | - Zhen Wang
- School of Pharmacy, Linyi University, P. R. China
| | - Xiuling Yu
- School of Pharmacy, Linyi University, P. R. China
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Zheng L, Zhao Z, Yang Y, Li Y, Wang C. Novel skin permeation enhancers based on amino acid ester ionic liquid: Design and permeation mechanism. Int J Pharm 2020; 576:119031. [DOI: 10.1016/j.ijpharm.2020.119031] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 12/15/2019] [Accepted: 01/10/2020] [Indexed: 12/16/2022]
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Mechanistic Evaluation of Enhanced Curcumin Delivery through Human Skin In Vitro from Optimised Nanoemulsion Formulations Fabricated with Different Penetration Enhancers. Pharmaceutics 2019; 11:pharmaceutics11120639. [PMID: 31805660 PMCID: PMC6956259 DOI: 10.3390/pharmaceutics11120639] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 11/24/2019] [Accepted: 11/25/2019] [Indexed: 01/01/2023] Open
Abstract
Curcumin is a natural product with chemopreventive and other properties that are potentially useful in treating skin diseases, including psoriasis and melanoma. However, because of the excellent barrier function of the stratum corneum and the relatively high lipophilicity of curcumin (log P 3.6), skin delivery of curcumin is challenging. We used the principles of a Quality by Design (QbD) approach to develop nanoemulsion formulations containing biocompatible components, including Labrasol and Lecithin as surfactants and Transcutol and ethanol as cosurfactants, to enhance the skin delivery of curcumin. The nanoemulsions were characterised by cryo-SEM, Zeta potential, droplet size, pH, electrical conductivity (EC) and viscosity (η). Physicochemical long-term stability (6 months) was also investigated. The mean droplet sizes as determined by dynamic light scattering (DLS) were in the lower submicron range (20–50 nm) and the average Zeta potential values were low (range: −0.12 to −2.98 mV). Newtonian flow was suggested for the nanoemulsions investigated, with dynamic viscosity of the nanoemulsion formulations ranging from 5.8 to 31 cP. The droplet size of curcumin loaded formulations remained largely constant over a 6-month storage period. The inclusion of terpenes to further enhance skin permeation was also examined. All nanoemulsions significantly enhanced the permeation of curcumin through heat-separated human epidermal membranes, with the greatest effect being a 28-fold increase in maximum flux (Jmax) achieved with a limonene-based nanoemulsion, compared to a 60% ethanol in water control vehicle. The increases in curcumin flux were associated with increased skin diffusivity. In summary, we demonstrated the effectiveness of nanoemulsions for the skin delivery of the lipophilic active compound curcumin, and elucidated the mechanism of permeation enhancement. These formulations show promise as delivery vehicles for curcumin to target psoriasis and skin cancer, and more broadly for other skin delivery applications.
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Kopečná M, Macháček M, Nováčková A, Paraskevopoulos G, Roh J, Vávrová K. Esters of terpene alcohols as highly potent, reversible, and low toxic skin penetration enhancers. Sci Rep 2019; 9:14617. [PMID: 31601936 PMCID: PMC6787078 DOI: 10.1038/s41598-019-51226-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 09/26/2019] [Indexed: 12/02/2022] Open
Abstract
Skin penetration/permeation enhancers are compounds that improve (trans)dermal drug delivery. We designed hybrid terpene-amino acid enhancers by conjugating natural terpenes (citronellol, geraniol, nerol, farnesol, linalool, perillyl alcohol, menthol, borneol, carveol) or cinnamyl alcohol with 6-(dimethylamino)hexanoic acid through a biodegradable ester linker. The compounds were screened for their ability to increase the delivery of theophylline and hydrocortisone through and into human skin ex vivo. The citronellyl, bornyl and cinnamyl esters showed exceptional permeation-enhancing properties (enhancement ratios up to 82) while having low cellular toxicities. The barrier function of enhancer-treated skin (assessed by transepidermal water loss and electrical impedance) recovered within 24 h. Infrared spectroscopy suggested that these esters fluidized the stratum corneum lipids. Furthermore, the citronellyl ester increased the epidermal concentration of topically applied cidofovir, which is a potent antiviral and anticancer drug, by 15-fold. In conclusion, citronellyl 6-(dimethylamino)hexanoate is an outstanding enhancer with an advantageous combination of properties, which may improve the delivery of drugs that have a limited ability to cross biological barriers.
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Affiliation(s)
- Monika Kopečná
- Skin Barrier Research Group, Charles University, Faculty of Pharmacy in Hradec Králové, Akademika Heyrovského 1203, 50005, Hradec Králové, Czech Republic
| | - Miloslav Macháček
- Department of Biochemical Sciences, Charles University, Faculty of Pharmacy in Hradec Králové, Akademika Heyrovského 1203, 50005, Hradec Králové, Czech Republic
| | - Anna Nováčková
- Skin Barrier Research Group, Charles University, Faculty of Pharmacy in Hradec Králové, Akademika Heyrovského 1203, 50005, Hradec Králové, Czech Republic
| | - Georgios Paraskevopoulos
- Skin Barrier Research Group, Charles University, Faculty of Pharmacy in Hradec Králové, Akademika Heyrovského 1203, 50005, Hradec Králové, Czech Republic
| | - Jaroslav Roh
- Department of Organic and Bioorganic Chemistry, Charles University, Faculty of Pharmacy in Hradec Králové, Akademika Heyrovského 1203, 50005, Hradec Králové, Czech Republic
| | - Kateřina Vávrová
- Skin Barrier Research Group, Charles University, Faculty of Pharmacy in Hradec Králové, Akademika Heyrovského 1203, 50005, Hradec Králové, Czech Republic.
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21
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Penetration enhancement of menthol on quercetin through skin: insights from atomistic simulation. J Mol Model 2019; 25:235. [DOI: 10.1007/s00894-019-4135-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Accepted: 07/11/2019] [Indexed: 12/20/2022]
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22
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Zheng X, Wu F, Lin X, Shen L, Feng Y. Developments in drug delivery of bioactive alkaloids derived from traditional Chinese medicine. Drug Deliv 2018; 25:398-416. [PMID: 29378456 PMCID: PMC6058676 DOI: 10.1080/10717544.2018.1431980] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 01/13/2018] [Accepted: 01/20/2018] [Indexed: 12/19/2022] Open
Abstract
The bioactive alkaloids (e.g. vincristine, hydroxycamptothecin, ligustrazine, and so on) from traditional Chinese medicine (TCM) have exerted potent efficacies (e.g. anti-tumor, anti-inflammation, immunosuppression, etc.). However, a series of undesirable physicochemical properties (like low solubility and weak stability) and baneful pharmacokinetic (PK) profiles (e.g. low bioavailability, short half time, rapid clearance, etc.) have severely restricted their applications in clinic. In addition, some side effects (like cumulative toxicities caused by high-frequency administration and their own toxicities) have recently been reported and also confined their clinical uses. Therefore, developments in drug delivery of such alkaloids are of significance in improving their drug-like properties and, thus, treatment efficiencies in clinic. Strategies, including (i) specific delivery via liposomes; (ii) sustained delivery via nanoparticles, gels, and emulsions; and (iii) transdermal delivery via ethosomes, solid lipid nanoparticles, and penetrating enhancers, have been reported to improve the pharmacokinetic and physicochemical characters of problematic TCM alkaloids, decline their adverse effects, and thus, boost their curative efficacies. In this review, the recent reports in this field were comprehensively summarized with the aim of providing an informative reference for relevant readers.
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Affiliation(s)
- Xiao Zheng
- College of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, PR China
- Engineering Research Center of Modern Preparation Technology of TCM of Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai, PR China
| | - Fei Wu
- Engineering Research Center of Modern Preparation Technology of TCM of Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai, PR China
| | - Xiao Lin
- College of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, PR China
| | - Lan Shen
- College of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, PR China
| | - Yi Feng
- Engineering Research Center of Modern Preparation Technology of TCM of Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai, PR China
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Srivilai J, Waranuch N, Tangsumranjit A, Khorana N, Ingkaninan K. Germacrone and sesquiterpene-enriched extracts from Curcuma aeruginosa Roxb. increase skin penetration of minoxidil, a hair growth promoter. Drug Deliv Transl Res 2018; 8:140-149. [PMID: 29159692 DOI: 10.1007/s13346-017-0447-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Minoxidil is approved for topical treatment of androgenic alopecia but hampered by poor cutaneous absorption. Recently, the randomized control trial showed that hair loss treatment of minoxidil was improved by co-application of the anti-androgen, Curcuma aeruginosa Roxb. extract. Here, we aimed to show that the apparent synergism arises from improved cutaneous penetration of minoxidil by bioactive compound, germacrone or C. aeruginosa (as an n-hexane extract, or essential oil). The partition coefficient of germacrone was determined by HPLC. Skin penetration was measured ex vivo on Franz diffusion cells using full thickness human foreskin as membranes. The receiver solution was sampled hourly for 8 h after which the skin was removed, the stratum corneum separated, and minoxidil assayed in this and in the remaining viable skin layer by HPLC. Skin penetration of minoxidil with 0.2 and 2% extract was increased ~ 4-fold (accumulated amount in receiver + skin viable layer after 8 h). Furthermore, germacrone enhanced minoxidil flux by ~ 10-fold and C. aeruginosa essential oil by ~ 20-fold. This work suggests three clinical consequences: (i) minoxidil efficacy is promoted, (ii) lower doses of minoxidil suffice, and (iii) C. aeruginosa extract/essential oil or germacrone can supplement treatment outcomes by acting as anti-androgen, thereby introducing a more effective topical treatment strategy for androgenic alopecia.
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Affiliation(s)
- Jukkarin Srivilai
- Bioscreening Unit, Department of Pharmaceutical Chemistry and Pharmacognosy, Faculty of Pharmaceutical Sciences and Center of Excellence for Innovation in Chemistry, Naresuan University, Phitsanulok, 65000, Thailand
| | - Neti Waranuch
- Cosmetics and Natural Products Research Center, Department of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Naresuan University, Phitsanulok, 65000, Thailand
| | - Anothai Tangsumranjit
- Cosmetics and Natural Products Research Center, Department of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Naresuan University, Phitsanulok, 65000, Thailand
| | - Nantaka Khorana
- Department of Pharmaceutical Chemistry and Pharmacognosy, Faculty of Pharmaceutical Sciences and Center of Excellence for Innovation in Chemistry, Naresuan University, Phitsanulok, 65000, Thailand
| | - Kornkanok Ingkaninan
- Bioscreening Unit, Department of Pharmaceutical Chemistry and Pharmacognosy, Faculty of Pharmaceutical Sciences and Center of Excellence for Innovation in Chemistry, Naresuan University, Phitsanulok, 65000, Thailand.
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Carvalho ALM, Silva JA, Lira AAM, Almeida EDP, Nunes RDS, Sarmento VHV, Veras LMC, de Almeida Leite JR, Leal LB, de Santana DP. Third-Generation Transdermal Delivery Systems Containing Zidovudine: Effect of the Combination of Different Chemical Enhancers and a Microemulsion System. AAPS PharmSciTech 2018; 19:3219-3227. [PMID: 30187445 DOI: 10.1208/s12249-018-1160-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 08/18/2018] [Indexed: 01/21/2023] Open
Abstract
This study aimed to examine the influence of the combination of chemical enhancers and a microemulsion on the transdermal permeation of zidovudine (AZT). Ethanol, 1,8-cineole, and geraniol were incorporated in a microemulsion. The droplet size, zeta potential, rheology, and SAXS analysis were performed. The permeation enhancer effect was evaluated using pig ear skin. Snake skin (Boa constrictor) treated with the formulations was also used as a stratum corneum model and studied by attenuated total reflectance-infrared spectroscopy. As a result, it was observed that the incorporation of the chemical enhancers promoted a decrease of the droplet size and some rheological modifications. The 1,8-cineole associated with the microemulsion significantly increased the permeated amount of AZT. Conversely, ethanol significantly increased the quantity of the drug retained in the skin. The probable mechanism for the cineole and ethanol effects was respectively: fluidization and increasing of the diffusion coefficient, and increasing of the partition coefficient. Surprising, geraniol + microemulsion drastically decreased both the permeated and the retained amount of AZT into the skin. Thus, the adequate association of microemulsion and chemical enhancers showed to be a crucial step to enable the topical or transdermal use of drugs.
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Mendanha SA, dos Anjos JLV, Maione-Silva L, Silva HCB, Lima EM, Alonso A. An EPR spin probe study of the interactions between PC liposomes and stratum corneum membranes. Int J Pharm 2018; 545:93-100. [DOI: 10.1016/j.ijpharm.2018.04.057] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 04/23/2018] [Accepted: 04/25/2018] [Indexed: 10/17/2022]
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Abstract
AbstractTerpineols are monocyclic monoterpene tertiary alcohols which are naturally present in plant species. There are five common isomers of terpineols, alpha-, beta-, gamma-, delta- and terpinen-4-ol, of which α-terpineol and its isomer terpinen-4-ol are the most common terpineols found in nature. α-Terpineol plays an important role in the industrial field. It has a pleasant odor similar to lilacs and it is a common ingredient in perfumes, cosmetics, and aromatic scents.In addition, α-terpineol attracts a great interest as it has a wide range of biological applications as an antioxidant, anticancer, anticonvulsant, antiulcer, antihypertensive, anti-nociceptive compound. It is also used to enhance skin penetration, and also has insecticidal properties. This study reviews the relevance of α-terpineol based on scientific findings on Google Scholar, Pubmed, Web of Science, Scopus and Chemical Abstracts.Collectively, the use of α-terpineol in medicine and in the pharmaceutical industry plays an important role in therapeutic applications. This review will, therefore, support future research in the utilization of α-terpineol.
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A Molecular Interpretation on the Different Penetration Enhancement Effect of Borneol and Menthol towards 5-Fluorouracil. Int J Mol Sci 2017; 18:ijms18122747. [PMID: 29258240 PMCID: PMC5751346 DOI: 10.3390/ijms18122747] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 11/29/2017] [Accepted: 12/12/2017] [Indexed: 01/23/2023] Open
Abstract
Borneol and menthol are terpenes that are widely used as penetration enhancers in transdermal drug delivery. To explore their penetration-enhancement effects on hydrophilic drugs, 5-fluorouracil (5-FU) was selected as a model drug. An approach that combined in vitro permeation studies and coarse-grained molecular dynamics was used to investigate their penetration-enhancement effect on 5-FU. The results showed that although both borneol and menthol imparted penetration-enhancement effects on 5-FU, these differed in terms of their mechanism, which may account for the observed variations in penetration-enhancement effects. The main mechanism of action of menthol involves the disruption of the stratum corneum (SC) bilayer, whereas borneol involves multiple mechanisms, including the disruption of the SC bilayer, increasing the diffusion coefficient of 5-FU, and inducing the formation of transient pores. The findings of the present study improve our understanding of the molecular mechanism that is underlying 5-FU penetration-enhancement by borneol and menthol, which may be utilized in future investigations and applications.
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Jiang Q, Wu Y, Zhang H, Liu P, Yao J, Yao P, Chen J, Duan J. Development of essential oils as skin permeation enhancers: penetration enhancement effect and mechanism of action. PHARMACEUTICAL BIOLOGY 2017; 55:1592-1600. [PMID: 28399694 PMCID: PMC7011944 DOI: 10.1080/13880209.2017.1312464] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 12/30/2016] [Accepted: 03/24/2017] [Indexed: 06/07/2023]
Abstract
CONTEXT Essential oils (EOs) have shown the potential to reversibly overcome the stratum corneum (SC) barrier to enhance the skin permeation of drugs. OBJECTIVE The effectiveness of turpentine, Angelica, chuanxiong, Cyperus, cinnamon, and clove oils were investigated for the capacity and mechanism to promote skin penetration of ibuprofen. MATERIALS AND METHODS Skin permeation studies of ibuprofen across rat abdominal skin with the presence of 3% w/v EOs were carried out; samples were withdrawn from the receptor compartment at 8, 10, 22, 24, 26, 28, 32, 36, and 48 h and analyzed for ibuprofen content by the HPLC method. The mechanisms of penetration enhancement of EOs were further evaluated by attenuated total reflection-Fourier transform infrared spectroscopy (ATR-FTIR) analysis and determination of the properties of EOs. Moreover, the toxicities of EOs on skin cells were also measured. RESULTS The enhancement ratio (ER) values of turpentine, Angelica, chuanxiong, Cyperus, cinnamon, clove oils and azone were determined to be 2.23, 1.83, 2.60, 2.49, 2.63 and 1.97, respectively. Revealed by ATR-FTIR analysis, a linear relationship (r = 0.9045) was found between the ER values and the total of the shift of peak position of SC lipids. Furthermore, the results of HaCaT skin cell toxicity evaluation revealed that the natural EOs possessed relatively lower skin irritation potential. CONCLUSION Compared with azone, the investigated EOs possess significantly higher penetration enhancement effect and lower skin toxicity. EOs can promote the skin permeation of ibuprofen mainly by disturbing rather than extracting the SC lipids.
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Affiliation(s)
- Qiudong Jiang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, China
- Pharmaceutical Research Laboratory, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yeming Wu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, China
- Pharmaceutical Research Laboratory, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Hui Zhang
- Pharmaceutical Research Laboratory, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Pei Liu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, China
| | - Junhong Yao
- Pharmaceutical Research Laboratory, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Peijun Yao
- Pharmaceutical Research Laboratory, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jun Chen
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, China
- Pharmaceutical Research Laboratory, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jinao Duan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, China
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Mendanha SA, Marquezin CA, Ito AS, Alonso A. Effects of nerolidol and limonene on stratum corneum membranes: A probe EPR and fluorescence spectroscopy study. Int J Pharm 2017; 532:547-554. [DOI: 10.1016/j.ijpharm.2017.09.046] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 09/11/2017] [Accepted: 09/16/2017] [Indexed: 02/01/2023]
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31
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Wang H, Meng F. The permeability enhancing mechanism of menthol on skin lipids: a molecular dynamics simulation study. J Mol Model 2017; 23:279. [DOI: 10.1007/s00894-017-3457-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 09/05/2017] [Indexed: 01/21/2023]
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Quintanilha NP, dos Santos Miranda Costa I, Freiman de Souza Ramos M, Campos de Oliveira Miguel N, Riemma Pierre MB. α-Bisabolol improves 5-aminolevulinic acid retention in buccal tissues: Potential application in the photodynamic therapy of oral cancer. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 174:298-305. [DOI: 10.1016/j.jphotobiol.2017.08.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 07/13/2017] [Accepted: 08/07/2017] [Indexed: 11/29/2022]
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Ameen D, Michniak-Kohn B. Transdermal delivery of dimethyl fumarate for Alzheimer's disease: Effect of penetration enhancers. Int J Pharm 2017; 529:465-473. [PMID: 28709939 DOI: 10.1016/j.ijpharm.2017.07.031] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 06/20/2017] [Accepted: 07/10/2017] [Indexed: 10/19/2022]
Abstract
Dimethyl fumarate (DMF) is an orally administered drug with neuroprotective and immunomodulatory activities. It has potential uses in the treatment of neurodegenerative diseases such as Alzheimer's disease (AD). The objective of this study was to investigate the feasibility of transdermal delivery of DMF by studying the effect of different penetration enhancers on the skin permeation of DMF. The permeation of saturated DMF solutions was investigated in propylene glycol (PG) with varying concentrations of each of the following enhancers: Polysorbate 80 (T80), N-methyl pyrrolidone (NMP), laurocapram (Azone®) (Az), Transcutol P (Tc), Terpineol (Terp), and cineole (Cin) using vertical Franz diffusion cells and human cadaver skin. The results showed that all penetration enhancers improved the rate of permeation of DMF. The rank order for the highest concentration of each enhancer was as follows: Cin > Az>TC > Terp>T80≥NMP. The most effective penetration enhancer was shown to be 5% cineole with a 5.3-fold increase in the enhancement ratio (ER). The amounts of drug delivered suggest that DMF is a potential candidate for transdermal drug delivery.
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Affiliation(s)
- Dina Ameen
- Ernest Mario School of Pharmacy, Rutgers-The State University of New Jersey, 160 Frelinghuysen Road, Piscataway, NJ 08854, USA; Center for Dermal Research, Rutgers-The State University of New Jersey, 145 Bevier Road, Piscataway, NJ 08854, USA; Department od Pharmaceutics, College of Pharmacy, University of Baghdad, Baghdad, Iraq
| | - Bozena Michniak-Kohn
- Ernest Mario School of Pharmacy, Rutgers-The State University of New Jersey, 160 Frelinghuysen Road, Piscataway, NJ 08854, USA; Center for Dermal Research, Rutgers-The State University of New Jersey, 145 Bevier Road, Piscataway, NJ 08854, USA.
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Kaur A, Sharma G, Gupta V, Ratho RK, Katare OP. Enhanced acyclovir delivery using w/o type microemulsion: preclinical assessment of antiviral activity using murine model of zosteriform cutaneous HSV-1 infection. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2017; 46:346-354. [PMID: 28403666 DOI: 10.1080/21691401.2017.1313262] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The present study was aimed to develop and evaluate a microemulsion-based dermal drug delivery of an antiviral agent, acyclovir. A water-in-oil microemulsion was prepared using isopropyl myristate, Tween 20, Span 20, water and dimethylsulphoxide. It was characterized for drug content, stability, globule size, pH, viscosity and ex vivo permeation through mice skin. In vivo antiviral efficacy of optimized formulation was assessed in female Balb/c mice against herpes simplex virus-I (HSV-I)-induced infection. It was observed that optimized formulation when applied 24-h post-infection could completely inhibit the development of cutaneous herpetic lesions vis-à-vis marketed cream.
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Affiliation(s)
- Amanpreet Kaur
- a Division of Pharmaceutics, University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Studies, Panjab University , Chandigarh , India
| | - Gajanand Sharma
- a Division of Pharmaceutics, University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Studies, Panjab University , Chandigarh , India
| | - Vishal Gupta
- a Division of Pharmaceutics, University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Studies, Panjab University , Chandigarh , India
| | - Radha Kanta Ratho
- b Postgraduate Institute of Medical Education and Research , Chandigarh , India
| | - Om Prakash Katare
- a Division of Pharmaceutics, University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Studies, Panjab University , Chandigarh , India
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Tuntiyasawasdikul S, Limpongsa E, Jaipakdee N, Sripanidkulchai B. Effects of Vehicles and Enhancers on the Skin Permeation of Phytoestrogenic Diarylheptanoids from Curcuma comosa. AAPS PharmSciTech 2017; 18:895-903. [PMID: 27380435 DOI: 10.1208/s12249-016-0582-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 06/23/2016] [Indexed: 11/30/2022] Open
Abstract
Curcuma comosa (C. comosa) is widely used in traditional medicine as a dietary supplement for health promotion in postmenopausal women in Thailand. It contains several diarylheptanoids, which are considered to be a novel class of phytoestrogens. However, the diarylheptanoids isolated from the plant rhizome are shown to have low oral bioavailability and faster elimination characteristics. The aim of this study was to investigate the permeation behavior of the active compounds of diarylheptanoids. The effects of binary vehicle systems and permeation enhancers on diarylheptanoids permeation and accumulation within the skin were studied using side-by-side diffusion cells through the porcine ear skin. Among the tested binary vehicle systems, the ethanol/water vehicle appeared to be the most effective system for diarylheptanoids permeation with the highest flux and shortest lag time. The presence of transcutol in the vehicle system significantly increased diarylheptanoid's permeation and accumulation within the skin in a concentration-dependent manner. Although the presence of terpenes in formulation decreased the flux of diarylheptanoids, it raised the amount of diarylheptanoids retained within the skin substantially. Based on the feasibility of diarylheptanoid permeation, C. comosa extract should be further developed into an effective transdermal product for health benefits and hormone replacement therapy.
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Ahad A, Al-Saleh AA, Al-Mohizea AM, Al-Jenoobi FI, Raish M, Yassin AEB, Alam MA. Formulation and characterization of novel soft nanovesicles for enhanced transdermal delivery of eprosartan mesylate. Saudi Pharm J 2017; 25:1040-1046. [PMID: 29158713 PMCID: PMC5681305 DOI: 10.1016/j.jsps.2017.01.006] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Accepted: 01/25/2017] [Indexed: 01/11/2023] Open
Abstract
The objective of the present work was to formulate, optimize and evaluate the potential of novel soft nanovesicles i.e. nano-transfersomes, containing eprosartan mesylate (EM) for transdermal delivery. Nano-transfersomes of EM were developed using Phospholipon 90G, Span 80 (SP) and sodium deoxycholate (SDC) and characterized for vesicle size, shape, entrapment efficiency, in vitro skin permeation study and confocal laser scanning microscopy. The optimized nano-transfersomes formulation showed vesicles size of 108.53 ± 0.06 nm and entrapment efficiency of 63.00 ± 2.76%. The optimized nano-transfersomes provided an improved transdermal flux of 27.22 ± 0.29 µg/cm2/h with an enhancement ratio of 16.80 over traditional liposomes through Wistar rat skin. Confocal laser microscopy of rat skin treated with the optimized formulation showed that the formulation was eventually distributed and permeated deep into the rat skin. The present investigation has shown that the nature and concentration of surfactants (edge activators) influence immense control on the characteristics of nano-transfersomes. It was concluded that the developed nano-transfersomes surmount the limitation of low penetration ability of the traditional liposomes across the rat skin. Improved drug delivery presented by nano-transfersomes establishes this system as an encouraging dosage form for the delivery of EM via skin route.
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Affiliation(s)
- Abdul Ahad
- Department of Pharmaceutics, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Abdulmohsen A Al-Saleh
- Department of Pharmaceutics, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Abdullah M Al-Mohizea
- Department of Pharmaceutics, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Fahad I Al-Jenoobi
- Department of Pharmaceutics, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Mohammad Raish
- Department of Pharmaceutics, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Alaa Eldeen B Yassin
- Pharmaceutical Sciences Department, College of Pharmacy-3163, King Saud bin Abdulaziz University for Health Sciences, and King Abdullah International Medical Research Center, Ministry of National Guard, Health Affairs, Riyadh 11426, Saudi Arabia
| | - Mohd Aftab Alam
- Department of Pharmaceutics, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
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Liu X, Quan P, Li S, Liu C, Zhao Y, Zhao Y, Fang L. Time dependence of the enhancement effect of chemical enhancers: Molecular mechanisms of enhancing kinetics. J Control Release 2017; 248:33-44. [DOI: 10.1016/j.jconrel.2017.01.017] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 12/10/2016] [Accepted: 01/09/2017] [Indexed: 10/20/2022]
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Liu W, Teng L, Yu K, Sun X, Fan C, Long C, Liu N, Li S, Wu B, Xu Q, Sun F, Li Y. Design of hydrogels of 5-hydroxymethyl tolterodine and their studies on pharmacokinetics, pharmacodynamics and transdermal mechanism. Eur J Pharm Sci 2017; 96:530-541. [DOI: 10.1016/j.ejps.2016.10.024] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 09/28/2016] [Accepted: 10/20/2016] [Indexed: 01/09/2023]
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Natural Terpenes as Penetration Enhancers for Transdermal Drug Delivery. Molecules 2016; 21:molecules21121709. [PMID: 27973428 PMCID: PMC6273457 DOI: 10.3390/molecules21121709] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 12/05/2016] [Accepted: 12/06/2016] [Indexed: 11/17/2022] Open
Abstract
The greatest hindrance for transdermal drug delivery (TDD) is the barrier property of skin, especially the stratum corneum (SC). Various methodologies have been investigated and developed to enhance the penetration of drugs through the skin. Among them, the most popular approach is the application of penetration enhancers (PEs), including natural terpenes, a very safe and effective class of PEs. In the present paper, we focused on terpenes as skin PEs for TDD. The mechanism of their action, the factors affecting their penetration enhancement effect, as well as their possible skin toxicity were discussed. Terpenes abundant in nature have great potential in the development of PEs. Compared to synthetic PEs, natural terpenes have been proved to possess higher enhancement activity. Interaction with SC intercellular lipids is the main mechanism of action for terpenes. The key factor affecting the enhancement effect is the lipophilicity of both terpenes and drug molecules. In addition, a lot of terpenes have also been proved to be much less toxic compared to azone, the classic synthetic PE. In summary, terpenes may be preferred over the chemically synthesized compounds as safe and effective PEs to promote the percutaneous absorption of drugs.
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Moghddam SRM, Ahad A, Aqil M, Imam SS, Sultana Y. Formulation and optimization of niosomes for topical diacerein delivery using 3-factor, 3-level Box-Behnken design for the management of psoriasis. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 69:789-97. [DOI: 10.1016/j.msec.2016.07.043] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 06/23/2016] [Accepted: 07/19/2016] [Indexed: 10/21/2022]
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Lan Y, Wang J, He S, Li S, Tan P, Lin H, Wu Q. Transdermal permeation of Zanthoxylum bungeanum essential oil on TCM components with different lipophilicity. JOURNAL OF TRADITIONAL CHINESE MEDICAL SCIENCES 2016. [DOI: 10.1016/j.jtcms.2016.11.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Carvalho ALM, Silva JAD, Lira AAM, Conceição TMF, Nunes RDS, de Albuquerque Junior RLC, Sarmento VHV, Leal LB, de Santana DP. Evaluation of Microemulsion and Lamellar Liquid Crystalline Systems for Transdermal Zidovudine Delivery. J Pharm Sci 2016; 105:2188-93. [DOI: 10.1016/j.xphs.2016.04.013] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Revised: 04/13/2016] [Accepted: 04/14/2016] [Indexed: 12/13/2022]
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43
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Chemical penetration enhancers in stratum corneum - Relation between molecular effects and barrier function. J Control Release 2016; 232:175-87. [PMID: 27108613 DOI: 10.1016/j.jconrel.2016.04.030] [Citation(s) in RCA: 127] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 04/14/2016] [Accepted: 04/20/2016] [Indexed: 01/28/2023]
Abstract
Skin is attractive for drug therapy because it offers an easily accessible route without first-pass metabolism. Transdermal drug delivery is also associated with high patient compliance and through the site of application, the drug delivery can be locally directed. However, to succeed with transdermal drug delivery it is often required to overcome the low permeability of the upper layer of the skin, the stratum corneum (SC). One common strategy is to employ so-called penetration enhancers that supposedly act to increase the drug passage across SC. Still, there is a lack of understanding of the molecular effects of so-called penetration enhancers on the skin barrier membrane, the SC. In this study, we provide a molecular characterization of how different classes of compounds, suggested as penetration enhancers, influence lipid and protein components in SC. The compounds investigated include monoterpenes, fatty acids, osmolytes, surfactant, and Azone. We employ natural abundance (13)C polarization transfer solid-state nuclear magnetic resonance (NMR) on intact porcine SC. With this method it is possible to detect small changes in the mobility of the minor fluid lipid and protein SC components, and simultaneously obtain information on the major fraction of solid SC components. The balance between fluid and solid components in the SC is essential to determine macroscopic material properties of the SC, including barrier and mechanical properties. We study SC at different hydration levels corresponding to SC in ambient air and under occlusion. The NMR studies are complemented with diffusion cell experiments that provide quantitative data on skin permeability when treated with different compounds. By correlating the effects on SC molecular components and SC barrier function, we aim at deepened understanding of diffusional transport in SC, and how this can be controlled, which can be utilized for optimal design of transdermal drug delivery formulations.
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Zhang WJ, Wang JY, Li H, He X, Zhang RQ, Zhang CF, Li F, Yang ZL, Wang CZ, Yuan CS. Novel Application of Natural Anisole Compounds as Enhancers for Transdermal Delivery of Ligustrazine. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2016; 43:1231-46. [PMID: 26446204 DOI: 10.1142/s0192415x15500706] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
To improve the transdermal delivery of ligustrazine, Foeniculum vulgare food origin anisole compounds were employed as promoters. Transdermal fluxes of ligustrazine were determined by Franz-type diffusion cells. Fourier transform-infrared (FT-IR) spectra were used to detect the biophysical changes of the stratum corneum and to explore the mechanism of permeation enhancement. A scanning electron microscope (SEM) was used to monitor the morphological changes of the skin. Among the three anisoles, anisic acid increased the penetration flux of ligustrazine significantly. The ligustrazine flux with anisic acid (11.9 μg/cm(2)/h) was higher than that any other group (p < 0.05). Spectra observations revealed that these anisole enhancers were able to disturb and extract the stratum corneum lipids. In addition, apparent density was used to describe the desquamation extent of the scutella. Multiple mechanisms are involved in the permeation enhancement of ligustrazine, including disturbing and extracting stratum corneum lipid, forming a competitive hydrogen bond. All data suggested that anisole compounds could be a group of safe and active penetration enhancers for transdermal delivery of ligustrazine.
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Affiliation(s)
- Wen-Jun Zhang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu 210009, China
| | - Jiao-Ying Wang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu 210009, China
| | - Hui Li
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu 210009, China
| | - Xin He
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210000, China
| | - Run-Qi Zhang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu 210009, China
| | - Chun-Feng Zhang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu 210009, China.,Tang Center of Herbal Medicine and Department of Anesthesia & Critical Care, University of Chicago, Chicago, IL 60637, USA
| | - Fei Li
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu 210009, China
| | - Zhong-Lin Yang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu 210009, China
| | - Chong-Zhi Wang
- Tang Center of Herbal Medicine and Department of Anesthesia & Critical Care, University of Chicago, Chicago, IL 60637, USA
| | - Chun-Su Yuan
- Tang Center of Herbal Medicine and Department of Anesthesia & Critical Care, University of Chicago, Chicago, IL 60637, USA
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Liu N, Song W, Song T, Fang L. Design and Evaluation of a Novel Felbinac Transdermal Patch: Combining Ion-Pair and Chemical Enhancer Strategy. AAPS PharmSciTech 2016; 17:262-71. [PMID: 26070544 PMCID: PMC4984900 DOI: 10.1208/s12249-015-0342-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2015] [Accepted: 05/23/2015] [Indexed: 11/30/2022] Open
Abstract
The aim of this study was to design a novel felbinac (FEL) patch with significantly higher (P < 0.05) skin permeation amount than the commercial product SELTOUCH® using ion-pair and chemical enhancer strategy, overcoming the disadvantage of the large application area of SELTOUCH®. Six complexes of FEL with organic amines diethylamine (DEA), triethylamine (TEA), N-(2'-hydroxy-ethanol)-piperdine (HEPP), monoethanolamine (MEtA), diethanolamine (DEtA), and triethanolamine (TEtA) were prepared by ion-pair interaction, and their formation were confirmed by differential scanning calorimetry (DSC), powder X-ray diffraction (pXRD), infared spectroscopy (IR), and proton nuclear magnetic resonance spectroscopy ((1)H-NMR). Subsequently, the effect of ion-pair complexes and chemical enhancers were investigated through in vitro and in vivo experiments using rabbit abdominal skin. Results showed that FEL-TEA was the most potential candidate both in isopropyl palmitate (IPP) solution and transdermal patches. Combining use of 10% N-dodecylazepan-2-one (Azone), the optimized FEL-TEA patch achieved a flux of 18.29 ± 2.59 μg/cm(2)/h, which was twice the amount of the product SELTOUCH® (J = 9.18 ± 1.26 μg/cm(2)/h). Similarly, the area under the concentration curve from time 0 to time t (AUC0-t ) in FEL-TEA patch group (15.94 ± 3.58 h.μg/mL) was also twice as that in SELTOUCH® group (7.31 ± 1.16 h.μg/mL). Furthermore, the in vitro skin permeation results of FEL-TEA patch was found to have a good correlation with the in vivo absorption results in rabbit. These findings indicated that a combination of ion-pair and chemical enhancer strategy could be useful in developing a novel transdermal patch of FEL.
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Affiliation(s)
- Nannan Liu
- Department of Pharmaceutical Sciences, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, China
| | - Wenting Song
- Department of Pharmaceutical Sciences, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, China
| | - Tian Song
- Department of Pharmaceutical Sciences, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, China
| | - Liang Fang
- Department of Pharmaceutical Sciences, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, China.
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Probing the role of chemical enhancers in facilitating drug release from patches: Mechanistic insights based on FT-IR spectroscopy, molecular modeling and thermal analysis. J Control Release 2016; 227:13-22. [DOI: 10.1016/j.jconrel.2016.02.027] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 02/11/2016] [Accepted: 02/14/2016] [Indexed: 11/22/2022]
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47
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Svetaz LA, Postigo A, Butassi E, Zacchino SA, Sortino MA. Antifungal drugs combinations: a patent review 2000-2015. Expert Opin Ther Pat 2016; 26:439-53. [DOI: 10.1517/13543776.2016.1146693] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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48
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Ahad A, Aqil M, Ali A. The application of anethole, menthone, and eugenol in transdermal penetration of valsartan: Enhancement and mechanistic investigation. PHARMACEUTICAL BIOLOGY 2015; 54:1042-51. [PMID: 26510896 PMCID: PMC11132634 DOI: 10.3109/13880209.2015.1100639] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 09/22/2015] [Indexed: 06/05/2023]
Abstract
CONTEXT The main barrier for transdermal delivery is the obstacle property of the stratum corneum. Many types of chemical penetration enhancers have been used to breach the skin barrier; among the penetration enhancers, terpenes are found as the most highly advanced, safe, and proven category. OBJECTIVE In the present investigation, the terpenes anethole, menthone, and eugenol were used to enhance the permeation of valsartan through rat skin in vitro and their enhancement mechanism was investigated. MATERIALS AND METHODS Skin permeation studies of valsartan across rat skin in the absence and the presence of terpenes at 1% w/v, 3% w/v, and 5% w/v in vehicle were carried out using the transdermal diffusion cell sampling system across rat skin and samples were withdrawn from the receptor compartment at 1, 2, 3, 4, 6, 8, 10, 12, and 24 h and analysed for drug content by the HPLC method. The mechanism of skin permeation enhancement of valsartan by terpenes treatment was evaluated by Fourier transform infrared spectroscopy (FTIR) analysis and differential scanning calorimetry (DSC). RESULTS All the investigated terpenes provided a significant (p < 0.01) enhancement in the valsartan flux at a concentration of 1%, and less so at 3% and 5%. The effectiveness of terpenes at 1% concentration was in the following order: anethole > menthone > eugenol with 4.4-, 4.0-, and 3.0-fold enhancement ratio over control, respectively. DSC study showed that the treatment of stratum corneum with anethole shifted endotherm down to lower melting point while FTIR studies revealed that anethole produced maximum decrease in peak height and area than other two terpenes. CONCLUSION The investigated terpenes can be successfully used as potential enhancers for the enhancement of skin permeation of lipophilic drug.
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Affiliation(s)
- Abdul Ahad
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Mohd. Aqil
- Department of Pharmaceutics, Faculty of Pharmacy, Jamia Hamdard (Hamdard University), New Delhi, India
| | - Asgar Ali
- Department of Pharmaceutics, Faculty of Pharmacy, Jamia Hamdard (Hamdard University), New Delhi, India
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Cui H, Quan P, Zhao H, Wen X, Song W, Xiao Y, Zhao Y, Fang L. Mechanism of Ion-Pair Strategy in Modulating Skin Permeability of Zaltoprofen: Insight from Molecular-Level Resolution Based on Molecular Modeling and Confocal Laser Scanning Microscopy. J Pharm Sci 2015; 104:3395-403. [DOI: 10.1002/jps.24543] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Revised: 03/04/2015] [Accepted: 05/18/2015] [Indexed: 11/11/2022]
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50
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Parhi R, Suresh P. Transdermal delivery of Diltiazem HCl from matrix film: Effect of penetration enhancers and study of antihypertensive activity in rabbit model. J Adv Res 2015; 7:539-50. [PMID: 27222758 DOI: 10.1016/j.jare.2015.09.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 09/01/2015] [Accepted: 09/04/2015] [Indexed: 11/27/2022] Open
Abstract
The present investigation focused on the development of Diltiazem HCl (DTH) matrix film and its characterization by in-vitro, ex-vivo and in-vivo methods. Films were prepared by solvent casting method by taking different ratios of hydroxypropyl methylcellulose K4M (HPMC K4M) and Eudragit RS100. Various parameters of the films were analyzed such as mechanical property using tensile tester, interaction study by Fourier transform infrared spectroscopy (FTIR) and Thermogravimetric analysis (TGA), in-vitro drug release through cellulose acetate membrane, ex-vivo permeation study using abdominal skin of rat employing Franz diffusion cell, and in-vivo antihypertensive activity using rabbit model. The FTIR studies confirmed the absence of interaction between DTH and selected polymers. Thermal analysis showed the shifting of endothermic peak of DTH in film, indicating the dispersion of DTH in molecular form throughout the film. Incorporation of 1,8-cineole showed highest flux (89.7 μg/cm(2)/h) of DTH compared to other penetration enhancers such as capsaicin, dimethyl sulfoxide (DMSO), and N-methyl pyrrolidone (NMP). Photomicrographs of histology study on optimized formulation (DF9) illustrated disruption of stratum corneum (SC) supporting the ex-vivo results. The in-vivo antihypertensive activity results demonstrated that formulation DF9 was effective in reducing arterial blood pressure in normotensive rabbits. SEM analysis of films kept for stability study (40 ± 2 °C/75% ± 5%RH for 3 months) revealed the formation of drug crystals which may be due to higher temperature. The findings of the study provide a better alternative dosage form of DTH for the effective treatment of hypertension with enhanced patient compliance.
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Affiliation(s)
- Rabinarayan Parhi
- Institute of Pharmacy, GITAM University, Gandhi Nagar Campus, Rushikunda, Visakhapatnam 530045, Andhra Pradesh, India
| | - Padilam Suresh
- Institute of Pharmacy and Technology, Salipur 754202, Cuttack, Odisha, India
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