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Almeida JMFD, Damasceno Júnior E, Silva EMF, Veríssimo LM, Fernandes NS. pH-responsive release system of topiramate transported on silica nanoparticles by melting method. Drug Dev Ind Pharm 2020; 47:126-145. [PMID: 33295812 DOI: 10.1080/03639045.2020.1862171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Incorporating drugs into silica matrices by the melting method can be applied to obtain drug delivery systems because they are governed by electrostatic type interactions, hydrogen bonding and hydrophilic-hydrophobic interactions between the drug and the silica surface. the melting method is an environmentally correct tool since it is free of organic solvent, low cost and with easy execution for the incorporation of drugs in silicas. Drugs delivery systems are very important for improving the treatment of chronic diseases. Topiramate (TPM) is a potent antiepileptic used in high daily doses as it has low bioavailability. In this context, silica nanoparticles (NPS) were used as an inorganic matrix for TPM transport in (in vitro) release studies. The TPM was incorporated into the NPS by hot melt loading employing a new carrier preparation methodology (NPS/TPM) using a thermobalance (by Thermogravimetry-TG) with high temperature control system. The release study using dissolution media simulating gastrointestinal at pH 1.2 (stomach) and 7.4 (intestine), showed that NPS release TPM in a prolonged and pH-responsive manner. The drug was released at intestinal pH ensuring greater absorption, allowing fewer daily doses and less adverse effects. The kinetic study demonstrated the best fit to the zero-order model proving the pH-responsive profile of the developed system.
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Affiliation(s)
- Janiele Mayara Ferreira de Almeida
- Laboratório de Química Analítica e Meio Ambiente, Instituto de Química, Universidade Federal do Rio Grande do Norte, Campus Universitário Lagoa Nova, Natal-RN, Brasil
| | - Elmar Damasceno Júnior
- Laboratório de Química Analítica e Meio Ambiente, Instituto de Química, Universidade Federal do Rio Grande do Norte, Campus Universitário Lagoa Nova, Natal-RN, Brasil
| | - Elania Maria Fernandes Silva
- Laboratório de Química Analítica e Meio Ambiente, Instituto de Química, Universidade Federal do Rio Grande do Norte, Campus Universitário Lagoa Nova, Natal-RN, Brasil
| | - Lourena Mafra Veríssimo
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal do Rio Grande do Norte, Natal-RN, Brasil
| | - Nedja Suely Fernandes
- Laboratório de Química Analítica e Meio Ambiente, Instituto de Química, Universidade Federal do Rio Grande do Norte, Campus Universitário Lagoa Nova, Natal-RN, Brasil
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Ryu JH, Kang TY, Shin H, Kim KM, Hong MH, Kwon JS. Osteogenic Properties of Novel Methylsulfonylmethane-Coated Hydroxyapatite Scaffold. Int J Mol Sci 2020; 21:ijms21228501. [PMID: 33198074 PMCID: PMC7696815 DOI: 10.3390/ijms21228501] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 11/09/2020] [Accepted: 11/09/2020] [Indexed: 12/04/2022] Open
Abstract
Despite numerous advantages of using porous hydroxyapatite (HAp) scaffolds in bone regeneration, the material is limited in terms of osteoinduction. In this study, the porous scaffold made from nanosized HAp was coated with different concentrations of osteoinductive aqueous methylsulfonylmethane (MSM) solution (2.5, 5, 10, and 20%) and the corresponding MH scaffolds were referred to as MH2.5, MH5, MH10, and MH20, respectively. The results showed that all MH scaffolds resulted in burst release of MSM for up to 7 d. Cellular experiments were conducted using MC3T3-E1 preosteoblast cells, which showed no significant difference between the MH2.5 scaffold and the control with respect to the rate of cell proliferation (p > 0.05). There was no significant difference between each group at day 4 for alkaline phosphatase (ALP) activity, though the MH2.5 group showed higher level of activity than other groups at day 10. Calcium deposition, using alizarin red staining, showed that cell mineralization was significantly higher in the MH2.5 scaffold than that in the HAp scaffold (p < 0.0001). This study indicated that the MH2.5 scaffold has potential for both osteoinduction and osteoconduction in bone regeneration.
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Affiliation(s)
- Jeong-Hyun Ryu
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, Seoul 03722, Korea; (J.-H.R.); (T.-Y.K.); (K.-M.K.)
| | - Tae-Yun Kang
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, Seoul 03722, Korea; (J.-H.R.); (T.-Y.K.); (K.-M.K.)
- BK21 PLUS Project, Yonsei University College of Dentistry, Seoul 03722, Korea
| | - Hyunjung Shin
- Nature Inspired Materials Processing Research Center, Department of Energy Science, Sungkyunkwan University, Suwon 16419, Korea;
| | - Kwang-Mahn Kim
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, Seoul 03722, Korea; (J.-H.R.); (T.-Y.K.); (K.-M.K.)
- BK21 PLUS Project, Yonsei University College of Dentistry, Seoul 03722, Korea
| | - Min-Ho Hong
- Nature Inspired Materials Processing Research Center, Department of Energy Science, Sungkyunkwan University, Suwon 16419, Korea;
- Correspondence: (M.-H.H.); (J.-S.K.); Tel.: +82-31-299-4266 (M.-H.H.); +82-2-2228-8301 (J.-S.K.)
| | - Jae-Sung Kwon
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, Seoul 03722, Korea; (J.-H.R.); (T.-Y.K.); (K.-M.K.)
- BK21 PLUS Project, Yonsei University College of Dentistry, Seoul 03722, Korea
- Correspondence: (M.-H.H.); (J.-S.K.); Tel.: +82-31-299-4266 (M.-H.H.); +82-2-2228-8301 (J.-S.K.)
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Mansour M, Issa TB, Issaoui N, Harchani A, Puebla EG, Ayed B. Synthesis, crystal structure, vibrational spectroscopy, optical investigation and DFT study of a novel hybrid material: 4,4′-diammoniumdiphenylsulfone iodobusmuthate. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.05.043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Khalil NY, AlRabiah HK, Al Rashoud SS, Bari A, Wani TA. Topiramate: Comprehensive profile. PROFILES OF DRUG SUBSTANCES, EXCIPIENTS, AND RELATED METHODOLOGY 2019; 44:333-378. [PMID: 31029222 DOI: 10.1016/bs.podrm.2018.11.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Topiramate, 2,3:4,5-di-O-isopropylidene-β-d-fructopyranose sulfamate, is a potent antiepileptic drug with a broad spectrum of activity. It is effective in both partial and generalized seizures. Topiramate was also found to have significant efficacy in migraine prevention with considerable reductions in the frequency of migraine headaches. The most common adverse events, which may accompany the use of topiramate, are paresthesia, fatigue, decreased appetite, nausea, diarrhea, weight decrease and taste perversion. The weight loss observed with the use of topiramate in obese, epileptic patients, afforded the approval of this drug as an anti-obesity medication. This action is thought to be based on the selective inhibition of mitochondrial carbonic anhydrase isoforms. This profile is prepared to discuss and explain physical characteristics, proprietary and nonproprietary names of topiramate. It also includes methods of preparation, thermal and spectral behavior and methods of analysis. Pharmacokinetics, metabolism, excretion and pharmacology together with its uses and applications are also discussed.
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Affiliation(s)
- Nasr Y Khalil
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Haitham K AlRabiah
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Saad S Al Rashoud
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Ahmed Bari
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Tanveer A Wani
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
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Pinto EC, Dolzan MD, Cabral LM, Armstrong DW, de Sousa VP. Topiramate: A Review of Analytical Approaches for the Drug Substance, Its Impurities and Pharmaceutical Formulations. J Chromatogr Sci 2015; 54:280-90. [PMID: 26276847 DOI: 10.1093/chromsci/bmv120] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Indexed: 11/14/2022]
Abstract
An important step during the development of high-performance liquid chromatography (HPLC) methods for quantitative analysis of drugs is choosing the appropriate detector. High sensitivity, reproducibility, stability, wide linear range, compatibility with gradient elution, non-destructive detection of the analyte and response unaffected by changes in the temperature/flow are some of the ideal characteristics of a universal HPLC detector. Topiramate is an anticonvulsant drug mainly used for the treatment of different types of seizures and prophylactic treatment of migraine. Different analytical approaches to quantify topiramate by HPLC have been described because of the lack of chromophoric moieties on its structure, such as derivatization with fluorescent moieties and UV-absorbing moieties, conductivity detection, evaporative light scattering detection, refractive index detection, chemiluminescent nitrogen detection and MS detection. Some methods for the determination of topiramate by capillary electrophoresis and gas chromatography have also been published. This systematic review provides a description of the main analytical methods presented in the literature to analyze topiramate in the drug substance and in pharmaceutical formulations. Each of these methods is briefly discussed, especially considering the detector used with HPLC. In addition, this article presents a review of the data available regarding topiramate stability, degradation products and impurities.
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Affiliation(s)
- Eduardo Costa Pinto
- Department of Pharmaceutics, Faculty of Pharmacy, Federal University of Rio de Janeiro, Av. Carlos Chagas Filho, 373, CCS, Bss, sala 15, Rio de Janeiro 21941-902, Brazil Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, TX, USA
| | - Maressa Danielli Dolzan
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, TX, USA Department of Chemistry, Federal University of Santa Catarina, Florianopolis, Santa Catarina, Brazil
| | - Lucio Mendes Cabral
- Department of Pharmaceutics, Faculty of Pharmacy, Federal University of Rio de Janeiro, Av. Carlos Chagas Filho, 373, CCS, Bss, sala 15, Rio de Janeiro 21941-902, Brazil
| | - Daniel W Armstrong
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, TX, USA
| | - Valéria Pereira de Sousa
- Department of Pharmaceutics, Faculty of Pharmacy, Federal University of Rio de Janeiro, Av. Carlos Chagas Filho, 373, CCS, Bss, sala 15, Rio de Janeiro 21941-902, Brazil
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