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Kawada S, Tanimoto M, Onishi N, Takaishi A, Morita H. Successful use of lidocaine hydrochloride in the management of ventricular arrhythmias in a case of pilsicainide intoxication. HeartRhythm Case Rep 2024; 10:119-123. [PMID: 38404968 PMCID: PMC10885686 DOI: 10.1016/j.hrcr.2023.10.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2024] Open
Affiliation(s)
- Satoshi Kawada
- Department of Cardiovascular Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Masafumi Tanimoto
- Department of Cardiovascular Medicine, Mitoyo General Hospital, Kagawa, Japan
| | - Nobuhiko Onishi
- Department of Cardiovascular Medicine, Mitoyo General Hospital, Kagawa, Japan
| | - Atsushi Takaishi
- Department of Cardiovascular Medicine, Mitoyo General Hospital, Kagawa, Japan
| | - Hiroshi Morita
- Department of Cardiovascular Therapeutics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
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Mao Y, Zhang X, Sun Y, Shen Z, Zhong C, Nie L, Shavandi A, Yunusov KE, Jiang G. Fabrication of lidocaine-loaded polymer dissolving microneedles for rapid and prolonged local anesthesia. Biomed Microdevices 2024; 26:9. [PMID: 38189892 DOI: 10.1007/s10544-024-00695-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/03/2024] [Indexed: 01/09/2024]
Abstract
There is an urgent need for research into effective interventions for pain management to improve patients' life quality. Traditional needle and syringe injection were used to administer the local anesthesia. However, it causes various discomforts, ranging from brief stings to trypanophobia and denial of medical operations. In this study, a dissolving microneedles (MNs) system made of composite matrix materials of polyvinylpyrrolidone (PVP), polyvinyl alcohol (PVA), and sodium hyaluronate (HA) was successfully developed for the loading of lidocaine hydrochloride (LidH). The morphology, size and mechanical properties of the MNs were also investigated. After the insertion of MNs into the skin, the matrix at the tip of the MNs was swelled and dissolved by absorption of interstitial fluid, leading to a rapid release of loaded LidH from MNs' tips. And the LidH in the back patching was diffused into deeper skin tissue through microchannels created by MNs insertion, forming a prolonged anesthesia effect. In addition, the back patching of MNs could be acted as a drug reservoir to form a prolonged local anesthesia effect. The results showed that LidH MNs provided a superior analgesia up to 8 h, exhibiting a rapid and long-lasting analgesic effects. Additionally, tissue sectioning and in vitro cytotoxicity tests indicated that the MNs patch we developed had a favorable biosafety profile.
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Affiliation(s)
- Yanan Mao
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
- International Scientific and Technological Cooperation Base of Intelligent Biomaterials and Functional Fibers of Zhejiang Province, Hangzhou, 310018, China
| | - Xiufeng Zhang
- Department of Colorectal Surgery, Hangzhou Third People's Hospital, Hangzhou, 310009, China
| | - Yanfang Sun
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Zhong Shen
- Department of Colorectal Surgery, Hangzhou Third People's Hospital, Hangzhou, 310009, China
| | - Chao Zhong
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
- International Scientific and Technological Cooperation Base of Intelligent Biomaterials and Functional Fibers of Zhejiang Province, Hangzhou, 310018, China
| | - Lei Nie
- College of Life Sciences, Xinyang Normal University, Xinyang, 464000, China
| | - Amin Shavandi
- Université libre de Bruxelles (ULB), École polytechnique de Bruxelles, 3BIO-BioMatter, Avenue F.D. Roosevelt, 50 - CP 165/61, Brussels, 1050, Belgium
| | - Khaydar E Yunusov
- Institute of Polymer Chemistry and Physics, Uzbekistan Academy of Sciences, Tashkent, 100128, Uzbekistan
| | - Guohua Jiang
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China.
- International Scientific and Technological Cooperation Base of Intelligent Biomaterials and Functional Fibers of Zhejiang Province, Hangzhou, 310018, China.
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Ponce-Rodriguez HD, Riera-Williams JP. A simple, fast, and cost-effective smartphone-based digital imaging method for quantification of lidocaine hydrochloride in pharmaceutical formulations. Ann Pharm Fr 2024; 82:96-109. [PMID: 37625529 DOI: 10.1016/j.pharma.2023.08.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 08/13/2023] [Accepted: 08/21/2023] [Indexed: 08/27/2023]
Abstract
OBJECTIVE A simple, highly specific, accurate and fast method by smartphone-based digital imaging was developed for estimating lidocaine hydrochloride in pharmaceutical formulations. MATERIAL AND METHODS To obtain the images, a Galaxy A03 Core smartphone and an image acquisition device developed in the laboratory were used to control the incident factors in reproducibility of the measurements. The processing of the images was carried out with the Color Grab application. Finally, the absorbance values were calculated using the RGB intensity values of blank, standard, and sample solutions. The proposed method was compared with spectroscopic and chromatographic methods. RESULTS The reaction between copper and lidocaine hydrochloride was characterized, showing better results in an equimolar ratio and maintaining the pH of the solution above 11.5. The use of the device for the capture of digital images allowed to control those sensitive parameters for reproducibility so that the analytical measurements showed adequate precision and accuracy. Validation of the main parameters of the method showed compliance with acceptance criteria. The application of the method for the analysis of injectable samples achieved reliable results, which were statistically similar to other reference instrumental methods. CONCLUSION The proposed method presented figures of merit in relation to linearity, precision, selectivity, accuracy, and robustness; it was carried out by designing and manufacturing a device for capturing digital images on a smartphone, which were analyzed to obtain RGB intensity values. These data are finally used to calculate absorbance values of solutions. All these elements provide this work with innovative characteristics in the field of analysis for control of pharmaceutical formulations.
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Affiliation(s)
- Henry Daniel Ponce-Rodriguez
- Departamento de Control Químico, Facultad de Ciencias Químicas y Farmacia, Universidad Nacional Autónoma de Honduras, Ciudad Universitaria, Tegucigalpa, Honduras.
| | - Jessica Patracia Riera-Williams
- Departamento de Control Químico, Facultad de Ciencias Químicas y Farmacia, Universidad Nacional Autónoma de Honduras, Ciudad Universitaria, Tegucigalpa, Honduras
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Arif R, Mir AW, Shaheen A. Synthesis, Aggregation Behavior and Drug-binding Interactions of Fatty acid-imidazolium-based Surface-active Ionic Liquids. Chem Phys Lipids 2022;:105176. [PMID: 35101392 DOI: 10.1016/j.chemphyslip.2022.105176] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 12/29/2021] [Accepted: 01/25/2022] [Indexed: 11/22/2022]
Abstract
The renewable fatty acid-based surface-active ionic liquids (SAILs) containing ethyl-substituted imidazolium head groups were prepared and structurally analyzed by Fourier transform infrared spectroscopy (FTIR), 1HNMR and 13CNMR spectroscopy. The products were named as; 3-ethyl-1-(2-dodecanoyl oxy) ethylimidazolium bromide [C12Eeim]Br, 3-ethyl-1-(2-tetradecanoyl oxy) ethylimidazolium bromide [C14Eeim]Br and 3-ethyl-1-(2-hexadecanoyl oxy) ethylimidazolium bromide [C16Eeim]Br. The critical micelle concentration (cmc) values of the three SAILs have been evaluated using conductivity measurements, probe-less UV-visible spectroscopy and fluorescence spectroscopy. The obtained cmc values were compared with the earlier reported non-functionalized SAILs such as [Cnmim]Br and [Cneim]Br where n= 12, 14, 16. The values were found to be 3 to 9 times lower mainly due to the presence of ester chain and also ethyl substituted imidazole ring. Thermodynamic parameters were evaluated by conductivity data at three different temperatures. Further, the aggregation behavior of SAILs with anesthetic drug, lidocaine hydrochloride (LC) has been studied using fluorescence. The fluorescence and UV-visible studies showed strong synergistic interactions operating between SAILs and drug molecules involving H bonding and cation-π interactions. The interactions grew stronger with the elongation of SAIL-chain length (12C-16C). Dynamic light scattering (DLS) and transmission electron microscopy (TEM) measurements suggested the formation of vesicles in SAIL-LC mixtures. These studies may thus offer an effective candidate which would serve as vectors for drug molecules in terms of their enhanced solubilization, permeability and target-specific delivery.
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Supachawaroj N, Damrongrungruang T, Limsitthichaikoon S. Formulation development and evaluation of lidocaine hydrochloride loaded in chitosan-pectin-hyaluronic acid polyelectrolyte complex for dry socket treatment. Saudi Pharm J 2021; 29:1070-1081. [PMID: 34588852 PMCID: PMC8463479 DOI: 10.1016/j.jsps.2021.07.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 07/04/2021] [Indexed: 12/31/2022] Open
Abstract
The main purpose of this study was to assess a lidocaine hydrochloride-loaded chitosan-pectin-hyaluronic polyelectrolyte complex for rapid onset and sustained release in dry socket wound treatment. Nine formulations (LCs) of lidocaine hydrochloride (LH) loaded into a chitosan–pectin–hyaluronic polyelectrolyte complex (PEC) were assessed using full factorial design (two factors × three levels). The formulations ranged between 4 and 10% w/w LH and 0.5–1.5% w/w HA. The following physicochemical properties of LCs were characterized: size, zeta potential, % entrapment efficiency, viscosity, mucoadhesiveness, % drug release, morphology, storage stability, and cytotoxicity. The particle size, zeta potential, % EE, viscosity, and % mucoadhesion increased with increasing LH and HA concentrations. Rapid release of LH followed a zero-order model, and a steady-state percentage of the drug was released over 4 h. LCs were found to be non-cytotoxic compared to LH solution. LH loaded into PEC demonstrated appropriate characteristics—including suitable rate of release—and fit a zero-order model. Furthermore, it was not cytotoxic and showed good stability in a high-HA formula, making it a promising candidate for future topical oral formulations.
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Affiliation(s)
- Nuttawut Supachawaroj
- Department of Pharmaceutical Technology, College of Pharmacy, Rangsit University, Thailand.,Department of Oral Surgery, College of Dental Medicine, Rangsit University, Thailand
| | - Teerasak Damrongrungruang
- Division of Oral Diagnosis, Department of Oral Biomedical Science, Faculty of Dentistry, Khon Kaen University, Thailand
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Lü XY, Hou K, Zhao YF, An S, Wang ZG. Conjoint analysis of influence of LC-HCL and Mor-HCL on Vth and neurite length in hippocampal neuronal network. Neurosci Lett 2021; 751:135801. [PMID: 33705932 DOI: 10.1016/j.neulet.2021.135801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 01/25/2021] [Accepted: 03/01/2021] [Indexed: 11/21/2022]
Abstract
Lidocaine hydrochloride (LC-HCl) and morphine hydrochloride (Mor-HCl) are two kinds of most prevalently used anesthetics. However, their influences on electrical excitability of hippocampal neuronal networks and hippocampal brain slices were rarely studied. Previously, our group have assessed the influence of acetylcholine, alcohol and temperature change on the excitability of neural networks with the so-called Voltage Threshold Measurement Method (VTMM) based on microelectrode array (MEA). In this paper, we will study the influence of LC-HCl and Mor-HCl on the electrical excitability of neural networks and the morphological features of neurons, and discuss the relations between the changes of electrical excitability of neural networks and the morphological changes of neurons. The results of VTMM showed: The voltage threshold (VTh) of hippocampal neuronal networks and hippocampal brain slices first increased and then decreased as the LC-HCl concentration increased. The VTh of hippocampal neuronal networks and hippocampal brain slices increased as the Mor-HCl concentration increased. The results of HCS experiments showed: The neurite length change of cultured hippocampal neuronal networks increased first and then decreased with increased LC-HCl concentration, but decreased as the Mor-HCl concentration increased. The combined analysis of VTMM and HCS experiments showed that under effects of the two drugs, the VTh and the hippocampal neurite length were strongly negatively correlated.
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Skade L, Kristensen CS, Nielsen MBF, Diness LH. Effect of two methods and two anaesthetics for local anaesthesia of piglets during castration. Acta Vet Scand 2021; 63:1. [PMID: 33407757 PMCID: PMC7789362 DOI: 10.1186/s13028-020-00566-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 12/06/2020] [Indexed: 11/23/2022] Open
Abstract
Background Since January 2019, surgical castration of male piglets must be performed using local anaesthesia, if farmers deliver pigs to the primary exporting slaughterhouses according to the “Danish quality scheme”; a voluntary initiative taken by the Danish pig industry. The approved procedure for local anaesthesia in Denmark is a three-step injection method with procaine. A comparison of lidocaine and procaine with the same concentration and injection methods of local anaesthetics has not previously been studied. The purpose of this study was to investigate the effect of two injection methods and two local anaesthetics on piglets’ avoidance behaviour (vocalisation and resistance movements) as well as the time spent on the procedures. The study included 203 male piglets that were randomly assigned to one of five treatments: 1. Control: Sham-handling without injection of local anaesthesia, 2. Pro3: Procaine injection using a three-step method, 3. Pro2: Procaine injection using a two-step method, 4. Lid3: Lidocaine injection using a three-step method, 5. Lid2: Lidocaine injection using a two-step method. During injection of local anaesthesia and castration, vocalisation was measured using a decibel meter and resistance movements were registrated by video recordings. Results During castration, piglets treated with local anaesthesia showed significantly reduced vocalisation and resistance movements and time spent on castration was also significantly reduced compared to the control group. During injection of the local anaesthesia, the piglets had significantly increased vocalisation and resistance movements compared to the control group. Piglets injected with lidocaine had a significantly reduced resistance movement score and a tendency to reduced vocalisation compared to piglets injected with procaine. No differences in avoidance behaviour were found between the injection methods. Conclusions The use of local anaesthesia, irrespective of the method and local anaesthetic, was effective in reducing vocalisation and resistance movements during surgery as well as the time spent on castration.
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Merey HA, Ramadan NK, Diab SS, Moustafa AA. Green spectrophotometric methods for the determination of a binary mixture of lidocaine hydrochloride and cetylpyridinium chloride in the presence of dimethylaniline. Spectrochim Acta A Mol Biomol Spectrosc 2020; 242:118743. [PMID: 32721659 DOI: 10.1016/j.saa.2020.118743] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/09/2020] [Accepted: 07/13/2020] [Indexed: 06/11/2023]
Abstract
Three green, simple, precise, accurate and sensitive spectrophotometric methods were developed for the determination of a binary mixture of lidocaine hydrochloride (LDC) and cetylpyridinium chloride (CPC) in the presence of dimethylaniline (DMA). In the three methods, the interference of DMA spectrum is eliminated using the ratio subtraction method. Method (A) depended on determining LDC and CPC by measuring the first derivative of the ratio spectra (1DD) at 271.0 and 268.4 nm, respectively. Method (B) was the ratio difference (RD), based on dividing the absorption spectrum of the binary mixture by a standard spectrum of CPC or LDC, then measuring the amplitude difference of the ratio spectra (∆P) between 231.2 and 240.0 nm for LDC and between 242.8 and 258.0 nm for CPC. Method (C) based on the application of dual wavelength coupled with the isoabsorptive point method. This was achieved by measuring the absorbance difference (∆A) between 243.0 and 268.6 nm for the determination of LDC, followed by application of isoabsorptive point method comprised of measurement the total content of the mixture of LDC and CPC at their isoabsorptive point at 240.0 nm. The content of CPC was obtained by subtraction. The specificity of the developed methods was investigated by analyzing laboratory prepared mixtures containing different ratios of LDC and CPC in presence of DMA. The proposed methods displayed useful analytical characteristics for the determination of LDC and CPC in bulk powder and their combined dosage form. The obtained results were statistically compared with those obtained by the official methods, showing no significant difference with respect to accuracy and precision.
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Affiliation(s)
- Hanan A Merey
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El Aini Post, 11562 Cairo, Egypt
| | - Nesrin K Ramadan
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El Aini Post, 11562 Cairo, Egypt
| | - Sherine S Diab
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El Aini Post, 11562 Cairo, Egypt.
| | - Azza A Moustafa
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El Aini Post, 11562 Cairo, Egypt
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Ali TA, Mohamed GG, Yahya GA. Development of Novel Potentiometric Sensors for Determination of Lidocaine Hydrochloride in Pharmaceutical Preparations, Serum and Urine Samples. Iran J Pharm Res 2017; 16:498-512. [PMID: 28979305 PMCID: PMC5603859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
This article is focused on the determination of lidocaine hydrochloride as a local anaesthetic drug. A potentiometric method based on modified screen-printed and modified carbon paste ion-selective electrodes was described for the determination of lidocaine hydrochloride in different pharmaceutical preparations and biological fluids (urine and serum). It was based on potentiometric titration of lidocaine hydrochloride using modified screen-printed and carbon paste electrodes as end point indicator sensors. The influences of the paste composition, different conditioning parameters and foreign ions on the electrodes performance were investigated and response times of the electrodes were studied. The electrodes showed Nernstian response of 58.9 and 57.5 mV decade-1 in the concentration range of 1×10-7-1×10-2 and 6.2×10-7-1×10-2 mol L-1 for modified screen-printed and carbon paste electrodes, respectively. The electrodes were found to be usable within the pH range of 2.0-8.0 and 2.0-7.5, exhibited a fast response time (about 6 and 4) low detection limit (1×10-7 and 6.2×10-7 mol L-1), long lifetime (6 and 4 months) and good stability for modified screen-printed (Electrode VII) and carbon paste electrodes (Electrode III), respectively. The electrodes were successfully applied for the determination of lidocaine hydrochloride in pure solutions, pharmaceutical preparation and biological fluids (urine and serum) samples. The results obtained applying these potentiometric electrodes were comparable with British pharmacopeia. The method validation parameters were optimized and the method can be applied for routine analysis of lidocaine hydrochloride drug.
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Affiliation(s)
- Tamer Awad Ali
- Egyptian Petroleum Research Institute (EPRI), 11727, Cairo, Egypt.,Corresponding author: E-mail:
| | | | - Ghada A. Yahya
- Chemistry Department, Faculty of Science, Cairo University, 12613, Giza, Egypt.
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Dalooei JR, Sahraei H, Meftahi GH, Khosravi M, Bahari Z, Hatef B, Mohammadi A, Nicaeili F, Eftekhari F, Ghamari F, Hadipour M, Kaka G. Temporary amygdala inhibition reduces stress effects in female mice. J Adv Res 2016; 7:643-9. [PMID: 27489731 PMCID: PMC4950119 DOI: 10.1016/j.jare.2016.06.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 06/21/2016] [Accepted: 06/26/2016] [Indexed: 12/28/2022] Open
Abstract
The current study investigated the effect of temporary inhibition of amygdala in response to metabolic changes caused by stress in female mice. Unilateral and bilateral amygdala cannulation was carried out, and after a week of recovery, 2% lidocaine hydrochloride was injected into the mice amygdalae five minutes before the induction of stress. A communication box was employed to induce stress for four consecutive days and plasma corticosterone, food and water intake, weight changes, and anorexia were measured as stress-induced metabolic changes. Results demonstrated that stress, increases stress, increased plasma corticosterone concentrations, weight, food, and water intake. Temporary inhibition of the amygdala slightly decreased plasma corticosterone concentrations, but did not fully reduce the effect of stress. The bilateral injection of lidocaine hydrochloride to the amygdala reduced the effect of stress and reduced water intake and weight. Unilateral injection of lidocaine hydrochloride into the left and right amygdala reduced food intake. In conclusion, the present study demonstrated that the left side and right side of amygdala nuclei play a different role in metabolic responses in stress.
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Affiliation(s)
| | - Hedayat Sahraei
- Neuroscience Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | | | - Maryam Khosravi
- Department of Biology, Islamic Azad University, North Tehran Branch, Tehran, Iran
| | - Zahra Bahari
- Department of Physiology and Biophysics, Faculty of Medicine, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Boshra Hatef
- Neuroscience Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Alireza Mohammadi
- Neuroscience Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Fateme Nicaeili
- Department of Biology, Islamic Azad University, North Tehran Branch, Tehran, Iran
| | - Fateme Eftekhari
- Department of Biology, Islamic Azad University, North Tehran Branch, Tehran, Iran
| | - Fateme Ghamari
- Department of Biology, Islamic Azad University, North Tehran Branch, Tehran, Iran
| | - Mohamadmehdi Hadipour
- Neuroscience Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Gholamreza Kaka
- Neuroscience Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
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Telò I, Tratta E, Guasconi B, Nicoli S, Pescina S, Govoni P, Santi P, Padula C. In-vitro characterization of buccal iontophoresis: the case of sumatriptan succinate. Int J Pharm 2016; 506:420-8. [PMID: 27113869 DOI: 10.1016/j.ijpharm.2016.04.054] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Revised: 04/18/2016] [Accepted: 04/19/2016] [Indexed: 11/29/2022]
Abstract
Buccal administration of sumatriptan succinate might be an interesting alternative to the present administration routes, due to its non-invasiveness and rapid onset of action, but because of its low permeability, a permeation enhancement strategy is required. The aim of this work was then to study, in-vitro, buccal iontophoresis of sumatriptan succinate. Permeation experiments were performed in-vitro across pig esophageal epithelium, a recently proposed model of human buccal mucosa, using vertical diffusion cells. The iontophoretic behavior of the tissue was characterized by measuring its isoelectric point (Na(+) transport number and the electroosmotic flow of acetaminophen determination) and by evaluating tissue integrity after current application. The results obtained confirm the usefulness of pig esophageal epithelium as an in-vitro model membrane for buccal drug delivery. The application of iontophoresis increased sumatriptan transport, proportionally to the current density applied, without tissue damage: electrotransport was the predominant mechanism. Integrating the results of the present work with literature data on the transport of other molecules across the buccal mucosa and across the skin, we can draw a general conclusion: the difference in passive transport across buccal mucosa and across the skin is influenced by permeant lipophilicity and by the penetration pathway. Finally, buccal iontophoretic administration of sumatriptan allows to administer 6mg of the drug in 1h, representing a promising alternative to the current administration routes.
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Affiliation(s)
- Isabella Telò
- Department of Pharmacy, University of Parma, Parco Area delle Scienze 27/a, 43124 Parma, Italy
| | - Elena Tratta
- Department of Pharmacy, University of Parma, Parco Area delle Scienze 27/a, 43124 Parma, Italy
| | - Barbara Guasconi
- Department of Pharmacy, University of Parma, Parco Area delle Scienze 27/a, 43124 Parma, Italy
| | - Sara Nicoli
- Department of Pharmacy, University of Parma, Parco Area delle Scienze 27/a, 43124 Parma, Italy
| | - Silvia Pescina
- Department of Pharmacy, University of Parma, Parco Area delle Scienze 27/a, 43124 Parma, Italy
| | - Paolo Govoni
- Department of Biomedical, Biotechnological and Traslational Sciences, University of Parma, Via Gramsci 14, 43126 Parma, Italy
| | - Patrizia Santi
- Department of Pharmacy, University of Parma, Parco Area delle Scienze 27/a, 43124 Parma, Italy
| | - Cristina Padula
- Department of Pharmacy, University of Parma, Parco Area delle Scienze 27/a, 43124 Parma, Italy.
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Wen X, Xu S, Zhang Q, Li X, Liang H, Yang C, Wang H, Liu H. Inhibitory gene expression of the Cav3.1 T-type calcium channel to improve neuronal injury induced by lidocaine hydrochloride. Eur J Pharmacol 2016; 775:43-9. [PMID: 26852957 DOI: 10.1016/j.ejphar.2016.02.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 02/01/2016] [Accepted: 02/03/2016] [Indexed: 10/22/2022]
Abstract
Cav3.1 is a low-voltage-activated (LVA) calcium channel that plays a key role in regulating intracellular calcium ion levels. In this study, we observed the effects of lidocaine hydrochloride on the pshRNA-CACNA1G-SH-SY5Y cells that silenced Cav3.1 mRNA by RNA interference, and investigated the roles of p38 MAPK in these effects. We constructed the pNC-puro-CACNA1G-SH-SY5Y cells and pshRNA-CACNA1G -SH-SY5Y cells by the RNA interference. All the cells were cultured with or without 10mM lidocaine hydrochloride for 24 h. The cell morphology, cell viability, Cav3.1 and p38 protein expression, cell apoptosis rate and intracellular calcium ion concentration were detected. We found that all cells treated with 10mM lidocaine hydrochloride for 24 h showed cellular rounding, axonal regression, and cellular floating. Compared with the cells in SH-SY5Y+Lido group and NC+Lido group, those in the RNAi+Lido group showed similar changes, but of smaller magnitude. Additionally, following lidocaine hydrochloride all cells displayed increased Cav3.1 and p38 MAPK protein, apoptosis rate, and intracellular calcium ion levels; however,these changes in the RNAi+Lido group were less pronounced than in the SH-SY5Y+Lido and NC+Lido groups. The cell viability decreased following lidocaine hydrochloride treatment, but viability of the cells in the RNAi+Lido group was higher than in the SH-SY5Y+Lido and NC+Lido groups. The results showed that Cav3.1 may be involved in neuronal injury induced by lidocaine hydrochloride and that p38 MAPK phosphorylation was reduced upon Cav3.1 gene silencing.
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Affiliation(s)
- Xianjie Wen
- Department of Anesthesiology, First People's Hospital of Foshan & Foshan Hospital of Sun Yat-sen University, Foshan 528000, Guangdong Province, China
| | - Shiyuan Xu
- Department of Anesthesiology, Zhujiang Hospital of Southern Medical University, Guangzhou 510282, Guangdong Province, China.
| | - Qingguo Zhang
- Department of Anesthesiology, Zhujiang Hospital of Southern Medical University, Guangzhou 510282, Guangdong Province, China
| | - Xiaohong Li
- Department of Pain Clinic, First Affiliated Hospital of Jinan University, Guangzhou 510630, Guangdong Province, China
| | - Hua Liang
- Department of Anesthesiology, First People's Hospital of Foshan & Foshan Hospital of Sun Yat-sen University, Foshan 528000, Guangdong Province, China
| | - Chenxiang Yang
- Department of Anesthesiology, First People's Hospital of Foshan & Foshan Hospital of Sun Yat-sen University, Foshan 528000, Guangdong Province, China
| | - Hanbing Wang
- Department of Anesthesiology, First People's Hospital of Foshan & Foshan Hospital of Sun Yat-sen University, Foshan 528000, Guangdong Province, China
| | - Hongzhen Liu
- Department of Anesthesiology, First People's Hospital of Foshan & Foshan Hospital of Sun Yat-sen University, Foshan 528000, Guangdong Province, China
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Vidhya N, Karthikeyan BS, Velmurugan N, Abarajithan M, Nithyanandan S. Interaction between lidocaine hydrochloride (with and without adrenaline) and various irrigants: A nuclear magnetic resonance analysis. Dent Res J (Isfahan) 2014; 11:395-9. [PMID: 25097652 PMCID: PMC4119375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Interaction between local anesthetic solution, lidocaine hydrochloride (with and without adrenaline), and root canal irrigants such as sodium hypochlorite (NaOCl), ethylene diamine tetra-acetic acid (EDTA), and chlorhexidine (CHX) has not been studied earlier. Hence, the purpose of this in vitro study was to evaluate the chemical interaction between 2% lidocaine hydrochloride (with and without adrenaline) and commonly used root canal irrigants, NaOCl, EDTA, and CHX. MATERIALS AND METHODS SAMPLES WERE DIVIDED INTO EIGHT EXPERIMENTAL GROUPS: Group I-Lidocaine hydrochloride (with adrenaline)/3% NaOCl, Group II-Lidocaine hydrochloride (with adrenaline)/17% EDTA, Group III- Lidocaine hydrochloride (with adrenaline)/2% CHX, Group IV-Lidocaine hydrochloride (without adrenaline)/3% NaOCl, Group V-Lidocaine hydrochloride (without adrenaline)/17% EDTA, Group VI-Lidocaine hydrochloride (without adrenaline)/2% CHX, and two control groups: Group VII-Lidocaine hydrochloride (with adrenaline)/deionized water and Group VIII-Lidocaine hydrochloride (without adrenaline)/deionized water. The respective solutions of various groups were mixed in equal proportions (1 ml each) and observed for precipitate formation. Chemical composition of the formed precipitate was then analysed by nuclear magnetic resonance spectroscopy (NMR) and confirmed with diazotation test. RESULTS In groups I and IV, a white precipitate was observed in all the samples on mixing the respective solutions, which showed a color change to reddish brown after 15 minutes. This precipitate was then analysed by NMR spectroscopy and was observed to be 2,6-xylidine, a reported toxic compound. The experimental groups II, III, V, and VI and control groups VII and VIII showed no precipitate formation in any of the respective samples, until 2 hours. CONCLUSION Interaction between lidocaine hydrochloride (with and without adrenaline) and NaOCl showed precipitate formation containing 2,6-xylidine, a toxic compound.
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Affiliation(s)
- Nirmal Vidhya
- Department of Conservative Dentistry and Endodontics, Meenakshi Ammal Dental College and Hospital, Meenakshi University, Chennai, Tamil Nadu, India
| | - Balasubramanian Saravana Karthikeyan
- Department of Conservative Dentistry and Endodontics, Meenakshi Ammal Dental College and Hospital, Meenakshi University, Chennai, Tamil Nadu, India
| | - Natanasabapathy Velmurugan
- Department of Conservative Dentistry and Endodontics, Meenakshi Ammal Dental College and Hospital, Meenakshi University, Chennai, Tamil Nadu, India,Address for correspondence: Dr. Natanasabapathy Velmurugan, Department of Conservative Dentistry and Endodontics, Meenakshi Ammal Dental College and Hospital, Meenakshi Academy of Higher Education and Research (MAHER), Alapakkam Main Road, Maduravoyal, Chennai - 600 095, Tamil Nadu, India. E-mail:
| | - Mohan Abarajithan
- Department of Conservative Dentistry and Endodontics, Meenakshi Ammal Dental College and Hospital, Meenakshi University, Chennai, Tamil Nadu, India
| | - Sivasankaran Nithyanandan
- Department of Chemistry, College of Engineering, Anna University, Guindy, Chennai, Tamil Nadu, India
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Vladisavljević GT, Shahmohamadi H, Das DB, Ekanem EE, Tauanov Z, Sharma L. Glass capillary microfluidics for production of monodispersed poly (DL-lactic acid) and polycaprolactone microparticles: experiments and numerical simulations. J Colloid Interface Sci 2013; 418:163-70. [PMID: 24461831 DOI: 10.1016/j.jcis.2013.12.002] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2013] [Revised: 11/29/2013] [Accepted: 12/01/2013] [Indexed: 10/25/2022]
Abstract
HYPOTHESIS Droplet size in microfluidic devices is affected by wettability of the microfluidic channels. Three-dimensional countercurrent flow focusing using assemblies of chemically inert glass capillaries is expected to minimize wetting of the channel walls by the organic solvent. EXPERIMENTS Monodispersed polycaprolactone and poly(lactic acid) particles with a diameter of 18-150 μm were produced by evaporation of solvent (dichloromethane or 1:2 mixture of chloroform and toluene) from oil-in-water or water-in-oil-in-water emulsions produced in three-dimensional flow focusing glass capillary devices. The drop generation behaviour was simulated numerically using the volume of fluid method. FINDINGS The numerical results showed good agreement with high-speed video recordings. Monodispersed droplets were produced in the dripping regime when the ratio of the continuous phase flow rate to dispersed phase flow rate was 5-20 and the Weber number of the dispersed phase was less than 0.01. The porosity of polycaprolactone particles increased from 8 to 62% when 30 wt% of the water phase was incorporated in the organic phase prior to emulsification. The inner water phase was loaded with 0.156 wt% lidocaine hydrochloride to achieve a sustained drug release. 26% of lidocaine was released after 1 h and more than 93% of the drug was released after 130 h.
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Affiliation(s)
- Goran T Vladisavljević
- Department of Chemical Engineering, Loughborough University, Loughborough LE11 3TU, United Kingdom.
| | - Hamed Shahmohamadi
- Wolfson School of Mechanical and Manufacturing Engineering, Loughborough University, Loughborough LE11 3TU, United Kingdom
| | - Diganta B Das
- Department of Chemical Engineering, Loughborough University, Loughborough LE11 3TU, United Kingdom
| | - Ekanem E Ekanem
- Department of Chemical Engineering, Loughborough University, Loughborough LE11 3TU, United Kingdom
| | - Zhandos Tauanov
- Department of Chemical Engineering, Loughborough University, Loughborough LE11 3TU, United Kingdom
| | - Lav Sharma
- Department of Chemical Engineering, Loughborough University, Loughborough LE11 3TU, United Kingdom
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Lotfy HM, Tawakkol SM, Fahmy NM, Shehata MA. Successive spectrophotometric resolution as a novel technique for the analysis of ternary mixtures of pharmaceuticals. Spectrochim Acta A Mol Biomol Spectrosc 2013; 121:313-323. [PMID: 24263128 DOI: 10.1016/j.saa.2013.10.090] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Revised: 10/14/2013] [Accepted: 10/19/2013] [Indexed: 06/02/2023]
Abstract
A novel spectrophotometric technique was developed for the simultaneous determination of ternary mixtures, without prior separation steps. This technique was called successive spectrophotometric resolution technique. The technique was based on either the successive ratio subtraction or successive derivative subtraction. The mathematical explanation of the procedure was illustrated. In order to evaluate the applicability of the methods a model data as well as an experimental data were tested. The results from experimental data related to the simultaneous spectrophotometric determination of lidocaine hydrochloride (LH), calcium dobesilate (CD) and dexamethasone acetate (DA); in the presence of hydroquinone (HQ), the degradation product of calcium dobesilate were discussed. The proposed drugs were determined at their maxima 202 nm, 305 nm, 239 nm and 225 nm for LH, CD, DA and HQ respectively; by successive ratio subtraction coupled with constant multiplication method to obtain the zero order absorption spectra, while by applying successive derivative subtraction they were determined at their first derivative spectra at 210 nm for LH, 320 nm or P(292-320) for CD, 256 nm or P(225-252) for DA and P(220-233) for HQ respectively. The calibration curves were linear over the concentration range of 2-20 μg/mL for both LH and DA, 6-50 μg/mL for CD, and 3-40 μg/mL for HQ. The proposed methods were checked using laboratory-prepared mixtures and were successfully applied for the analysis of pharmaceutical formulation containing the cited drugs with no interference from other dosage form additives. The proposed methods were validated according to the ICH guidelines. The obtained results were statistically compared with those of the official BP methods for LH, DA, and CD, and with the official USP method for HQ; using student t-test, F-test, and one way ANOVA, showing no significant difference with respect to accuracy and precision.
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Affiliation(s)
- Hayam M Lotfy
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Egypt
| | - Shereen M Tawakkol
- Analytical Chemistry Department, Faculty of Pharmacy, Helwan University, Egypt
| | - Nesma M Fahmy
- Analytical Chemistry Department, Faculty of Pharmacy, Ahram Canadian University, Egypt.
| | - Mostafa A Shehata
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Egypt
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Plenis A, Konieczna L, Miękus N, Bączek T. Development of the HPLC Method for Simultaneous Determination of Lidocaine Hydrochloride and Tribenoside Along with Their Impurities Supported by the QSRR Approach. Chromatographia 2012; 76:255-265. [PMID: 23482886 PMCID: PMC3585984 DOI: 10.1007/s10337-012-2339-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2012] [Revised: 09/18/2012] [Accepted: 10/02/2012] [Indexed: 10/27/2022]
Abstract
A new liquid chromatographic (LC) method for simultaneous determination of lidocaine hydrochloride (LH) and tribenoside (TR) along with their related compounds in pharmaceutical preparations is described. Satisfactory LC separation of all analytes after the liquid-liquid extraction (LLE) procedure with ethanol was performed on a C18 column using a gradient elution of a mixture of acetonitrile and 0.1 % orthophosphoric acid as the mobile phase. The procedure was validated according to the ICH guidelines. The limits of detection (LOD) and quantification (LOQ) were 4.36 and 13.21 μg mL-1 for LH, 7.60 and 23.04 μg mL-1 for TR, and below 0.11 and 0.33 μg mL-1 for their impurities, respectively. Intra- and inter-day precision was below 1.97 %, whereas accuracy for all analytes ranged from 98.17 to 101.94 %. The proposed method was sensitive, robust, and specific allowing reliable simultaneous quantification of all mentioned compounds. Moreover, a comparative study of the RP-LC column classification based on the quantitative structure-retention relationships (QSRR) and column selectivity obtained in real pharmaceutical analysis was innovatively applied using factor analysis (FA). In the column performance test, the analysis of LH and TR in the presence of their impurities was carried out according to the developed method with the use of 12 RP-LC stationary phases previously tested under the QSRR conditions. The obtained results confirmed that the classes of the stationary phases selected in accordance with the QSRR models provided comparable separation for LH, TR, and their impurities. Hence, it was concluded that the proposed QSRR approach could be considered a supportive tool in the selection of the suitable column for the pharmaceutical analysis.
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Affiliation(s)
- Alina Plenis
- Department of Pharmaceutical Chemistry, Medical University of Gdańsk, Hallera 107, 80-416 Gdańsk, Poland
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