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Ran L, Chen Q, Lu X, Gao Z, Cui F, Liu X, Xue B. Novel treatment and insight for irradiation-induced injuries: Dibucaine ameliorates irradiation-induced testicular injury by inhibiting fatty acid oxidation in primary Leydig cells. Biomed Pharmacother 2023; 164:114903. [PMID: 37224756 DOI: 10.1016/j.biopha.2023.114903] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 05/07/2023] [Accepted: 05/16/2023] [Indexed: 05/26/2023] Open
Abstract
BACKGROUND Male infertility is a worldwide problem but few treatments, especially irradiation-induced testicular injury. The aim of this research was to investigate novel drugs for the treatment of irradiation-induced testicular injury. METHODS We administered dibucaine (0.8 mg/kg) intraperitoneally to male mice (6 mice per group) after five consecutive daily 0.5 Gy whole-body irradiation, and evaluated its ameliorating efficacy by testicular HE staining and morphological measurements. Drug affinity responsive target stability assay (Darts) were used to find target protein and pathway; mouse primary Leydig cells were isolated and to explore the mechanism (Flow cytometry, Western blot, and Seahorse palmitate oxidative stress assays); finally rescue experiments were completed by combining dibucaine with fatty acid oxidative pathway inhibitors and activators. RESULTS The testicular HE staining and morphological measurements in dibucaine treatment group was significantly better than that in irradiation group (P < 0.05); sperm motility and mRNA levels of spermatogenic cell markers were also higher than those in the latter (P < 0.05). Darts and Western blot results showed that dibucaine targets CPT1A and downregulate fatty acid oxidation. Flow cytometry, Western blot, and Palmitate oxidative stress assays of primary Leydig cells demonstrated that dibucaine inhibits fatty acid oxidation in Leydig cells. Dibucaine combined with etomoxir/baicalin confirmed that its inhibition of fatty acid oxidation was beneficial in ameliorating irradiation-induced testicular injury. CONCLUSIONS In conclusion, our data suggest that dibucaine ameliorates irradiation-induced testicular injury in mice by inhibiting fatty acid oxidation in Leydig cells. This will provide novel ideas for the treatment of irradiation-induced testicular injury.
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Affiliation(s)
- Lingxiang Ran
- Department of Urology, the Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215004, China
| | - Qiu Chen
- School of Radiation Medicine and Protection, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Xingyu Lu
- School of Radiation Medicine and Protection, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Zhixiang Gao
- Department of Urology, the Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215004, China
| | - Fengmei Cui
- School of Radiation Medicine and Protection, Soochow University, Suzhou, Jiangsu, 215123, China.
| | - Xiaolong Liu
- Department of Urology, the Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215004, China.
| | - Boxin Xue
- Department of Urology, the Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215004, China.
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Salem H, Abdelaziz A, Atef A, Abdelrady R, Ibrahim M, Elkady A. A synchronous fluorescence spectrofluorometric method for the simultaneous determination of policresulen and cinchocaine hydrochloride in ointment and suppositories. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 255:119648. [PMID: 33744839 DOI: 10.1016/j.saa.2021.119648] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 02/22/2021] [Accepted: 02/23/2021] [Indexed: 06/12/2023]
Abstract
For the treatment of internal and external hemorrhoids, policresulen (POL) and cinchocaine hydrochloride (CIN) are used in combination. Using a new, simple, fast, and economical first-derivative synchronous fluorescence spectroscopic process, both drugs were simultaneously determined and validated. At Δλ60 nm and with a scanning rate of 600 nm/min, methanol was used as the solvent for both products. In the concentration ranges of 5.0-21.0 μg mL-1 and 0.5-6.0 μg mL-1 for POL and CIN, the amplitude-concentration plots were rectilinear. The detection limits were found to be 0.770 μg mL-1 and 0.118 μg mL-1 and the quantitation limits for POL and CIN were 2.541 μg mL-1 and 0.391 μg mL-1. To evaluate all compounds in synthetic mixtures and medicinal dosage types, the proposed method has been successfully applied. These findings were in line with the results obtained using high-performance thin layer chromatography, the comparison process.
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Affiliation(s)
- Hesham Salem
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Deraya University, New Minia, Egypt.
| | - Amany Abdelaziz
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Deraya University, New Minia, Egypt
| | - Arwa Atef
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Deraya University, New Minia, Egypt
| | - Rania Abdelrady
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Deraya University, New Minia, Egypt
| | - Mohamed Ibrahim
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Deraya University, New Minia, Egypt
| | - Ahmed Elkady
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Deraya University, New Minia, Egypt
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Mijangos MV, Amador‐Sánchez YA, Miranda LD. Synthesis of Quinoline‐4‐carboxamides and Quinoline‐4‐carboxylates via a Modified Pfitzinger Reaction of
N
‐Vinylisatins. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001455] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Marco V. Mijangos
- Instituto de Química Universidad Nacional Autónoma de México Circuito Exterior, Ciudad Universitaria, Coyoacán Ciudad de México 04510 México
| | - Yoarhy A. Amador‐Sánchez
- Instituto de Química Universidad Nacional Autónoma de México Circuito Exterior, Ciudad Universitaria, Coyoacán Ciudad de México 04510 México
| | - Luis D. Miranda
- Instituto de Química Universidad Nacional Autónoma de México Circuito Exterior, Ciudad Universitaria, Coyoacán Ciudad de México 04510 México
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Aşçı B, Koç M. Optimum HPLC Conditions for Determination of Dibucaine HCL, Fluocortolone Pivalate and Fluocortolone Caproate by Using Experimental Design. CURR PHARM ANAL 2018. [DOI: 10.2174/1573412913666170707113025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Introduction:This paper presents the development and validation of a novel, fast, sensitive and accurate high performance liquid chromatography (HPLC) method for the simultaneous quantitative determination of dibucaine HCl, fluocortolone pivalate and fluocortolone caproate in pharmaceutical preparations.Experiment:Development of the chromatographic method was based on an experimental design approach. A five-level-three-factor central composite design requiring 20 experiments in this optimization study was performed in order to evaluate the effects of three independent variances including mobile phase ratio, flow rate and amount of acid in the mobile phase.Conclusion:The optimum composition for mobile phase was found as a methanol:water:acetic acid mixture at 71.6 : 26.4 : 2 (v/v/v) ratio and optimum separation was acquired by isocratic elution with a flow rate of 1.3 mL/min. The analytes were detected using a UV detector at 240 nm. The developed method was validated in terms of linearity, precision, accuracy, limit of detection/quantitation and solution stability and successfully applied to the determination of dibucaine HCl, fluocortolone pivalate and fluocortolone caproate in pharmaceutical topical formulations such as suppositories and ointments.
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Affiliation(s)
- Bürge Aşçı
- Department of Chemistry, Faculty of Science and Arts, Yildiz Technical University, Istanbul, Turkey
| | - Mesut Koç
- Department of Chemistry, Faculty of Science and Arts, Yildiz Technical University, Istanbul, Turkey
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de M Barbosa R, Ribeiro LNM, Casadei BR, da Silva CMG, Queiróz VA, Duran N, de Araújo DR, Severino P, de Paula E. Solid Lipid Nanoparticles for Dibucaine Sustained Release. Pharmaceutics 2018; 10:E231. [PMID: 30441802 PMCID: PMC6321380 DOI: 10.3390/pharmaceutics10040231] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 11/06/2018] [Accepted: 11/09/2018] [Indexed: 12/13/2022] Open
Abstract
Dibucaine (DBC) is among the more potent long-acting local anesthetics (LA), and it is also one of the most toxic. Over the last decades, solid lipid nanoparticles (SLN) have been developed as promising carriers for drug delivery. In this study, SLN formulations were prepared with the aim of prolonging DBC release and reducing its toxicity. To this end, SLN composed of two different lipid matrices and prepared by two different hot-emulsion techniques (high-pressure procedure and sonication) were compared. The colloidal stability of the SLN formulations was tracked in terms of particle size (nm), polydispersity index (PDI), and zeta potential (mV) for 240 days at 4 °C; the DBC encapsulation efficiency was determined by the ultrafiltration/centrifugation method. The formulations were characterized by differential scanning calorimetry (DSC), electron paramagnetic resonance (EPR), and release kinetic experiments. Finally, the in vitro cytotoxicity against 3T3 fibroblast and HaCaT cells was determined, and the in vivo analgesic action was assessed using the tail flick test in rats. Both of the homogenization procedures were found suitable to produce particles in the 200 nm range, with good shelf stability (240 days) and high DBC encapsulation efficiency (~72⁻89%). DSC results disclosed structural information on the nanoparticles, such as the lower crystallinity of the lipid core vs. the bulk lipid. EPR measurements provided evidence of DBC partitioning in both SLNs. In vitro (cytotoxicity) and in vivo (tail flick) experiments revealed that the encapsulation of DBC into nanoparticles reduces its intrinsic cytotoxicity and prolongs the anesthetic effect, respectively. These results show that the SLNs produced are safe and have great potential to extend the applications of dibucaine by enhancing its bioavailability.
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Affiliation(s)
- Raquel de M Barbosa
- Biochemistry and Tissue Biology Department, Institute of Biology, University of Campinas, Campinas 13083-862, SP, Brazil.
- Pharmacy Department, UNINASSAU-Natal College, Natal 59080-400, RN, Brazil.
| | - Ligia N M Ribeiro
- Biochemistry and Tissue Biology Department, Institute of Biology, University of Campinas, Campinas 13083-862, SP, Brazil.
| | - Bruna R Casadei
- Biochemistry and Tissue Biology Department, Institute of Biology, University of Campinas, Campinas 13083-862, SP, Brazil.
| | - Camila M G da Silva
- Biochemistry and Tissue Biology Department, Institute of Biology, University of Campinas, Campinas 13083-862, SP, Brazil.
| | - Viviane A Queiróz
- Biochemistry and Tissue Biology Department, Institute of Biology, University of Campinas, Campinas 13083-862, SP, Brazil.
| | - Nelson Duran
- Institute of Chemistry, University of Campinas (UNICAMP), Campinas 13083-861, SP, Brazil.
| | - Daniele R de Araújo
- Human and Natural Sciences Center, Federal University of ABC, Santo André 09210-580, SP, Brazil.
| | - Patrícia Severino
- Institute of Technology and Research. Av. Murilo Dantas, 300, Aracaju 49032-490, SE, Brazil.
| | - Eneida de Paula
- Biochemistry and Tissue Biology Department, Institute of Biology, University of Campinas, Campinas 13083-862, SP, Brazil.
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Li Y, Li CF, Du LM, Feng JX, Liu HL, Fu YL. A competitive strategy based on cucurbit[7]uril supramolecular interaction for simple and sensitive detection of dibucaine. Talanta 2015; 132:653-7. [DOI: 10.1016/j.talanta.2014.09.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2014] [Revised: 08/29/2014] [Accepted: 09/03/2014] [Indexed: 12/28/2022]
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7
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Ma B, Chen FL, Xu XY, Zhang YN, Hu LH. α-Diazo β-Keto Ester as Precursor to Aromatic CH Insertion and Wolff Rearrangement with Different Directing Groups. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201300763] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Barbosa RM, Silva CMGD, Bella TS, Araújo DRD, Marcato PD, Durán N, Paula ED. Cytotoxicity of solid lipid nanoparticles and nanostructured lipid carriers containing the local anesthetic dibucaine designed for topical application. ACTA ACUST UNITED AC 2013. [DOI: 10.1088/1742-6596/429/1/012035] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Ensafi AA, Allafchian A. Potentiometric Sensor for the Determination of Dibucaine in Pharmaceutical Preparations and Electrochemical Study of the Drug with BSA. B KOREAN CHEM SOC 2011. [DOI: 10.5012/bkcs.2011.32.8.2722] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Al-Ghannam SM. Atomic absorption spectroscopic, conductometric and colorimetric methods for determination of some fluoroquinolone antibacterials using ammonium reineckate. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2008; 69:1188-94. [PMID: 17689288 DOI: 10.1016/j.saa.2007.06.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2007] [Revised: 04/09/2007] [Accepted: 06/21/2007] [Indexed: 05/16/2023]
Abstract
Three accurate, rapid and simple atomic absorption spectrometric (AAS), conductometric and colorimetric methods were developed for the determination of gatifloxacin (GTF), moxifloxacin (MXF) and sparfloxacin (SPF). The proposed methods depend upon the reaction of ammonium reineckate with the studied drugs to form stable precipitate of ion-pair complexes, which was dissolved in acetone. The pink coloured complexes were determined either by AAS or colorimetrically at lambda(max) 525 nm directly using the dissolved complex. Using conductometric titration, the studied drugs could be evaluated in 50% (v/v) acetone. The optimizations of various experimental conditions were described. Optimum concentration ranges for the determination of GTF, MXF and SPF were 5.0-150, 40-440 microg mL(-1) and 0.10-1.5 mg mL(-1) using atomic absorption (AAS), conductometric and colorimetric methods, respectively. Detection and quantification limits are ranges from 1.5 to 2.3 microg mL(-1) using AAS method or 30-45 microg mL(-1) using colorimetric method. The proposed procedures have been applied successfully to the analysis of these drugs in pharmaceutical formulations and the results are favourably comparable to the reference methods.
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Affiliation(s)
- Sheikha M Al-Ghannam
- Girls College of Science, Department of Chemistry, P.O. Box 838, Dammam-31113, Saudi Arabia.
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Elsayed MMA. Rapid determination of cinchocaine in skin by high-performance liquid chromatography. Biomed Chromatogr 2007; 21:491-6. [PMID: 17294504 DOI: 10.1002/bmc.782] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A simple, rapid, accurate, precise and specific analytical method has been developed, validated and applied for determination of cinchocaine in guinea pig and albino rabbit dorsal skins, after in vivo application of cinchocaine formulations. Extraction was performed using a solvent mixture of ethanol and 0.1 M hydrochloric acid (90:10; v/v). Samples were chromatographed on Spheri-5, RP(18) column with a particle size of 5 microm and 220 mm x 4.6 mm i.d. The mobile phase was a mixture of acetonitrile and triethylamine phosphate buffer (pH 2.8; 0.04 M) (60:40, v/v). UV detection was carried out at 247 nm and the run time was 6 min with typical retention time of cinchocaine of 3.63 +/- 0.02 min. Specificity was demonstrated, showing that the cinchocaine peak was free of interference from skin endogenous components. The detector response was found to be linear in the concentration range 0.96-56.00 microg/mL with a coefficient of correlation r = 0.99996. The relative standard deviations of within- and between-day analyses were all below 5%. The drug extraction procedure was validated. Satisfactory recoveries with relative standard deviation values below 5% were obtained, indicating efficient quantitative reproducible extraction procedure.
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Affiliation(s)
- Mustafa M A Elsayed
- Department of Pharmaceutics, University of Alexandria, El-Azarita, Alexandria 21521, Egypt.
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