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Lopez-Rodulfo IM, Tsochatzis ED, Stentoft EW, Martinez-Carrasco P, Bechtner JD, Martinez MM. Partitioning and in vitro bioaccessibility of apple polyphenols during mechanical and physiological extraction: A hierarchical clustering analysis with LC-ESI-QTOF-MS/MS. Food Chem 2024; 441:138320. [PMID: 38199101 DOI: 10.1016/j.foodchem.2023.138320] [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: 11/14/2023] [Revised: 12/09/2023] [Accepted: 12/27/2023] [Indexed: 01/12/2024]
Abstract
Polyphenol partitioning during mechanical (cold-pressing) and physiological (digestion) extraction at the individual polyphenol and subclass level was investigated. UHPLC-ESI-QTOF-MS/MS analysis yielded a comprehensive identification of 45 polyphenols whose semi-quantification revealed a hierarchical clustering strongly determined by polyphenol structure and their location within the apple tissue. For instance, pomace retained most flavonols and flavanols (degree of polymerization DP 5-7), which were highly hydrophobic, hydroxylated, or large (>434 Da), and more abundant in peel. In vitro digestion UHPLC-ESI-QTOF-MS/MS analysis of whole apple (and its corresponding matrix-free extract) clustered polyphenols into five main groups according to their interaction with plant cell walls (PCWs) during each digestion phase. This grouping was not reproduced in pomace, which exhibited a greater matrix effect than whole apple during oral and gastric digestion. Nevertheless, the interaction between most polyphenol groups, including dihydrochalcones, flavanols (DP 1-4) and hydroxycinnamic acid derivatives, and pomace PCWs was lost during intestinal digestion.
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Affiliation(s)
- Ivan M Lopez-Rodulfo
- Centre for Innovative Food (CiFOOD), Department of Food Science, Aarhus University, Agro Food Park 48, Aarhus N 8200, Denmark
| | - Emmanouil D Tsochatzis
- Centre for Innovative Food (CiFOOD), Department of Food Science, Aarhus University, Agro Food Park 48, Aarhus N 8200, Denmark
| | - Emil W Stentoft
- Centre for Innovative Food (CiFOOD), Department of Food Science, Aarhus University, Agro Food Park 48, Aarhus N 8200, Denmark
| | - Pamela Martinez-Carrasco
- Centre for Innovative Food (CiFOOD), Department of Food Science, Aarhus University, Agro Food Park 48, Aarhus N 8200, Denmark
| | - Julia D Bechtner
- Centre for Innovative Food (CiFOOD), Department of Food Science, Aarhus University, Agro Food Park 48, Aarhus N 8200, Denmark
| | - Mario M Martinez
- Centre for Innovative Food (CiFOOD), Department of Food Science, Aarhus University, Agro Food Park 48, Aarhus N 8200, Denmark.
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2
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Xu Y, Li L, Yang Y, Huang C, Zou H. Catalytic hairpin assembly triggering amplified DNAzyme-feedback for sensitive detection of hepatitis C virus genotype 1b. Talanta 2024; 271:125754. [PMID: 38335846 DOI: 10.1016/j.talanta.2024.125754] [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: 10/18/2023] [Revised: 01/31/2024] [Accepted: 02/05/2024] [Indexed: 02/12/2024]
Abstract
Developing a simple, reliable, and sensitive hepatitis C virus (HCV) genetic sensing platform is of great significance for diagnosing diseases and selecting appropriate antiviral treatments. Herein, a tandem nucleic acid amplification strategy for sensitive detection of HCV genotype 1b (HCV-1b) was developed by stringing the catalytic hairpin assembly (CHA) and the triggered DNAzyme amplifier. The hairpin reactants were initiated by the target to produce lots of triggering double-stranded DNA sequences which can efficiently activate the subsequent blocked DNAzyme. Thereby, the continuous cleavage of substrate was realized, resulting in the fluorescence signal amplification. The DNA-based isothermal CHA-DNAzyme (CDz) sensing platform was successfully applied for sensitive detection of HCV-1b with the limit of detection (84 pM) and showed good selectivity. Moreover, the practical detection of target DNA in the complex biologic matrix indicated that the developing strategy had good potential for early HCV infection diagnosis.
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Affiliation(s)
- Yuting Xu
- Key Laboratory on Luminescence and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, PR China
| | - Lili Li
- Key Laboratory on Luminescence and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, PR China; School of Chemical Engineering, Shijiazhuang University, Shijiazhuang, Hebei, 050035, PR China
| | - Yumeng Yang
- Key Laboratory on Luminescence and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, PR China
| | - Chengzhi Huang
- Key Laboratory on Luminescence and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, PR China.
| | - Hongyan Zou
- Key Laboratory on Luminescence and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, PR China.
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3
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Malik A, Sharif A, Zubair HM, Akhtar B, Mobashar A. In Vitro, In Silico, and In Vivo Studies of Cardamine hirsuta Linn as a Potential Antidiabetic Agent in a Rat Model. ACS OMEGA 2023; 8:22623-22636. [PMID: 37396280 PMCID: PMC10308569 DOI: 10.1021/acsomega.3c01034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 05/30/2023] [Indexed: 07/04/2023]
Abstract
Diabetes mellitus (T2DM) is a multifaceted metabolic disorder with no definite treatment. In silico characterization can help to explain the interaction between molecules and predict 3D structures. The aim of the present study was to evaluate the hypoglycemic activities of the hydro-methanolic extract of Cardamine hirsuta in a rat model. In vitro antioxidant and α-amylase inhibitory assays were evaluated in the present study. Phyto-constituents were quantified using RP-UHPLC-MS analysis. Molecular docking of compounds into the binding site of different molecular targets, i.e., tumor necrosis factor (TNF-α), glycogen synthase kinase 3 β (GSK-3β), and AKT, was carried out. Acute toxicity model, in vivo antidiabetic effect, and the influence on biochemical and oxidative stress parameters were also investigated. T2DM was induced in adult male rats by streptozotocin using a high-fat diet model. Three different doses (125, 250, and 500 mg/kg BW) were orally gavaged for 30 days. Mulberrofuran-M and quercetin3-(6″caffeoylsophoroside) have demonstrated remarkable binding affinity toward TNF-α and GSK-3β, respectively. 2,2-Diphenyl-1-picrylhydrazyl and α-amylase inhibition assay exhibited IC50 values of 75.96 and 73.66 μg/mL, respectively. In vivo findings exhibited that 500 mg/kg body weight (BW) dose of the extract significantly decreased the blood glucose level, improved biochemical parameters as well as oxidative stress by reduction of lipid peroxidation, and increased high-density lipoproteins. Moreover, activities of glutathione-s-transferase, reduced glutathione, superoxide dismutase were enhanced, and cellular architecture in the histopathological examination was restored in treatment groups. The present study affirmed the antidiabetic activities of mulberrofuran-M and quercetin3-(6″caffeoylsophoroside) present in the hydro-methanolic extract of C. hirsuta, possibly due to the reduction in oxidative stress and α-amylase inhibition.
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Affiliation(s)
- Aqna Malik
- Department
of Pharmacology, Faculty of Pharmacy, The
University of Lahore, Lahore 54000, Pakistan
| | - Ali Sharif
- Department
of Pharmacology, Faculty of Pharmacy, The
University of Lahore, Lahore 54000, Pakistan
| | - Hafiz Muhammad Zubair
- Department
of Pharmacology, Faculty of Pharmacy, The
University of Lahore, Lahore 54000, Pakistan
| | - Bushra Akhtar
- Department
of Pharmacy, University of Agriculture, Faisalabad 38000, Pakistan
| | - Aisha Mobashar
- Department
of Pharmacology, Faculty of Pharmacy, The
University of Lahore, Lahore 54000, Pakistan
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4
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Choudhary D, Garg S, Kaur M, Sohal HS, Malhi DS, Kaur L, Verma M, Sharma A, Mutreja V. Advances in the Synthesis and Bio-Applications of Pyrazine Derivatives: A Review. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2092873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Dimple Choudhary
- Medicinal and Natural Product Laboratory, Department of Chemistry, Chandigarh University, Mohali, India
| | - Sonali Garg
- Medicinal and Natural Product Laboratory, Department of Chemistry, Chandigarh University, Mohali, India
| | - Manvinder Kaur
- Medicinal and Natural Product Laboratory, Department of Chemistry, Chandigarh University, Mohali, India
| | - Harvinder Singh Sohal
- Medicinal and Natural Product Laboratory, Department of Chemistry, Chandigarh University, Mohali, India
| | - Dharambeer Singh Malhi
- Medicinal and Natural Product Laboratory, Department of Chemistry, Chandigarh University, Mohali, India
| | - Loveleen Kaur
- Medicinal and Natural Product Laboratory, Department of Chemistry, Chandigarh University, Mohali, India
| | - Meenakshi Verma
- Medicinal and Natural Product Laboratory, Department of Chemistry, Chandigarh University, Mohali, India
| | - Ajay Sharma
- Medicinal and Natural Product Laboratory, Department of Chemistry, Chandigarh University, Mohali, India
| | - Vishal Mutreja
- Medicinal and Natural Product Laboratory, Department of Chemistry, Chandigarh University, Mohali, India
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Aboras SI, Abdine HH, Ragab MAA, Korany MA. A Review on Analytical Strategies for the Assessment of Recently Approved Direct Acting Antiviral Drugs. Crit Rev Anal Chem 2021; 52:1878-1900. [PMID: 34138669 DOI: 10.1080/10408347.2021.1923456] [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: 12/24/2022]
Abstract
Human beings are in dire need of developing an efficient treatment against fierce viruses like hepatitis C virus (HCV) and Coronavirus (COVID-19). These viruses have already caused the death of over two million people all over the world. Therefore, over the last years, many direct-acting antiviral drugs (DAADs) were developed targeting nonstructural proteins of these two viruses. Among these DAADs, several drugs were found more effective and safer than the others as sofosbuvir, ledipasvir, grazoprevir, glecaprevir, voxilaprevir, velpatasvir, elbasvir, pibrentasvir and remdesivir. The last one is indicated for COVID-19, while the rest are indicated for HCV treatment. Due to the valuable impact of these DAADs, larger number of analytical methods were required to meet the needs of the clinical studies. Therefore, this review will highlight the current approaches, published in the period between 2017 to present, dealing with the determination of these drugs in two different matrices: pharmaceuticals and biological fluids with the challenges of analyzing these drugs either alone, with other drugs, in presence of interferences (pharmaceutical excipients or endogenous plasma components) or in presence of matrix impurities, degradation products and metabolites. These approaches include spectroscopic, chromatographic, capillary electrophoretic, voltametric and nuclear magnetic resonance methods that have been reported during this period. Moreover, the analytical instrumentation and methods used in determination of these DAADs will be illustrated in tabulated forms.
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Affiliation(s)
- Sara I Aboras
- Faculty of Pharmacy, Department of Pharmaceutical Analytical Chemistry, University of Alexandria, El-Messalah, Alexandria, Egypt
| | - Heba H Abdine
- Faculty of Pharmacy, Department of Pharmaceutical Analytical Chemistry, University of Alexandria, El-Messalah, Alexandria, Egypt
| | - Marwa A A Ragab
- Faculty of Pharmacy, Department of Pharmaceutical Analytical Chemistry, University of Alexandria, El-Messalah, Alexandria, Egypt
| | - Mohamed A Korany
- Faculty of Pharmacy, Department of Pharmaceutical Analytical Chemistry, University of Alexandria, El-Messalah, Alexandria, Egypt
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Álvarez M, Rodríguez A, Bermúdez E, Roncero E, Andrade MJ. Development of a Methodology for Estimating the Ergosterol in Meat Product-Borne Toxigenic Moulds to Evaluate Antifungal Agents. Foods 2021; 10:438. [PMID: 33671272 PMCID: PMC7922909 DOI: 10.3390/foods10020438] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/10/2021] [Accepted: 02/13/2021] [Indexed: 11/17/2022] Open
Abstract
Antifungal agents are commonly used in the meat industry to prevent the growth of unwanted moulds, such as toxigenic ones, on dry-cured meat products. For enhancing the application of antifungals, their mode of action must be evaluated. Their effect on the mould ergosterol content is one of the most studied ones, since it is the target site of some commercialised antifungals or of those that are in development. The aim of this study was to develop a methodology for determining how the antifungal agents used in the meat industry work. A method for analysing ergosterol was firstly developed using high-performance liquid chromatography with fluorescence detection coupled to a diode array detector (HPLC-FLD/DAD). The chromatographically optimised conditions (gradient and mobile phases) allowed us to reduce the time per analysis with respect to previously published methods up to 22 min. Withing the six checked extraction methods, method 5, showing the best mean recovery values (99.51%), the shortest retention time (15.8 min), and the lowest standard deviation values (9.92) and working temperature (60 °C), was selected. The limit of detection and limit of quantification were 0.03 and 0.1 µg/mL, respectively. All the validation parameters corroborated the method's suitability. Finally, its feasibility for evaluating the effect of a commercial antifungal preparation (AP) and different herbs that are frequently added to meat products on the ergosterol content of several toxigenic moulds was studied. Differences at the strain level were obtained in the presence of AP. Moreover, the addition of herbs significantly reduced the ergosterol content in Penicillium nordicum up to 83.91%. The developed methodology is thus suitable for screening the antifungals' role in altering mould ergosterol biosynthesis before their application in real meat products.
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Affiliation(s)
- Micaela Álvarez
- Food Hygiene and Safety, Meat and Meat Products Research Institute, Faculty of Veterinary Science, University of Extremadura, Avda. de las Ciencias, s/n. 10003 Cáceres, Spain; (M.Á.); (E.B.); (E.R.)
| | - Alicia Rodríguez
- Food Quality and Microbiology, University Institute for the Research in Agrifood Resources, School of Agricultural Engineering, University of Extremadura, Avda. Adolfo Suárez, s/n. 06007 Badajoz, Spain;
| | - Elena Bermúdez
- Food Hygiene and Safety, Meat and Meat Products Research Institute, Faculty of Veterinary Science, University of Extremadura, Avda. de las Ciencias, s/n. 10003 Cáceres, Spain; (M.Á.); (E.B.); (E.R.)
| | - Elia Roncero
- Food Hygiene and Safety, Meat and Meat Products Research Institute, Faculty of Veterinary Science, University of Extremadura, Avda. de las Ciencias, s/n. 10003 Cáceres, Spain; (M.Á.); (E.B.); (E.R.)
| | - María J. Andrade
- Food Hygiene and Safety, Meat and Meat Products Research Institute, Faculty of Veterinary Science, University of Extremadura, Avda. de las Ciencias, s/n. 10003 Cáceres, Spain; (M.Á.); (E.B.); (E.R.)
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7
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Effective quantification of ravidasvir (an NS5A inhibitor) and sofosbuvir in rat plasma by validated LC-MS/MS method and its application to pharmacokinetic study. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.09.048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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8
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Labidi A, El Atrache LL. Chemometrically Assisted Development of Ultra-High-Performance Liquid Chromatography Method for the Simultaneous Quantification of Sofosbuvir, Daclatasvir and Ledipasvir in Pharmaceutical Dosage Forms. J Chromatogr Sci 2020; 57:910-919. [PMID: 31644804 DOI: 10.1093/chromsci/bmz076] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 06/05/2019] [Accepted: 08/07/2019] [Indexed: 12/18/2022]
Abstract
A new ultra-high-performance liquid chromatography method for the simultaneous quantification of sofosbuvir, daclatasvir and ledipasvir was developed. Two combinations of these direct-acting antivirals are used in hepatitis C virus infection therapy and show high efficacy and safety. Fractional factorial design was used for screening the most influential factors on separation and time analysis. These significant factors were optimized using a central composite design. The optimum resolution was carried out by using a Waters XBridge C18 column (150 mm, 4.6 mm ID, 5 μm) at a temperature of 35°C ± 2°C and acetonitrile/sodium perchlorate buffer (10 mM, pH = 3.2) (40: 60 v/v) as mobile phase at a flow rate of 1.5 mL min-1. UV detection was set at λ = 210 nm. A short chromatographic separation time was achieved. The developed method was validated according to the accuracy profile approach and was found specific, precise, faithful and accurate. The detection limits were between 0.07 and 0.13 μg mL-1. Hence, this novel method can be employed for the routine quality control analysis and in dissolution profile studies of generics containing these products.
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Affiliation(s)
- Aymen Labidi
- Faculté des Sciences de Tunis, Laboratoire de Chimie Analytique et Electrochimie, Université de Tunis El Manar, Campus Universitaire Farhat Hached, 2092 Tunis, Tunisia.,Laboratoire National de Contrôle des Médicaments, 11 bis Rue Jebel Lakhdar Bab Saadoun, 1006 Tunis, Tunisia
| | - Latifa Latrous El Atrache
- Faculté des Sciences de Tunis, Laboratoire de Chimie Analytique et Electrochimie, Université de Tunis El Manar, Campus Universitaire Farhat Hached, 2092 Tunis, Tunisia.,Institut Préparatoire aux Etudes d'Ingénieurs d'El Manar, Université de Tunis El Manar, B.P. 244 El Manar II, 2092 Tunis, Tunisia
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9
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Youssef AA, Magdy N, Hussein LA, El-Kosasy AM. Validated RP-HPLC Method for Simultaneous Determination of Ribavirin, Sofosbuvir and Daclatasvir in Human Plasma: A Treatment Protocol Administered to HCV Patients in Egypt. J Chromatogr Sci 2019; 57:636-643. [PMID: 31063182 DOI: 10.1093/chromsci/bmz038] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 03/11/2019] [Accepted: 04/05/2019] [Indexed: 02/06/2023]
Abstract
Egypt has the highest prevalence of hepatitis C virus (HCV) in the world thus it launched a national program for eliminating HCV aiming to treat 300,000 HCV patients per year. Three anti-HCV co-administered drugs; ribavirin (RBV), sofosbuvir (SF) daclatasvir (DAC) were simultaneously determined in human plasma by a validated, simple and sensitive RP-HPLC method using propyl paraben as an internal standard. Liquid-liquid extraction using ethyl acetate was used for samples extraction. Chromatographic separation was achieved on Scharlau® C18 column (250 × 4.6 mm2, 5 μm). Gradient elution was employed with a mobile phase mixture of water and acetonitrile at a flow rate 1 mL/min. UV detection using photodiode array detector was carried out at 207, 260 and 312 nm for RBV, SF and DAC, respectively. Method validation was performed according to the FDA guidelines for bioanalytical method validation. The calibration curves were linear over the ranges (0.5-80, 0.1-40 and 0.5-80 μg/mL) with average recoveries (100.64-108.28%, 98.48-105.91% and 97.68-101.38%) for RBV, SF and DAC, respectively. The intra-day and inter-day precision and accuracy results were within the acceptable limits. Stability assays revealed that the three studied analytes were stable during sample storage, preparation and injection. The method can be successfully applied in routine analysis of plasma of HCV patients treated with this combination therapy which aids in therapeutic drug monitoring and patients' follow-up especially in Egypt and other developing countries fighting HCV.
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Affiliation(s)
- Aya A Youssef
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Organization of African Unity Street, Abassia, Cairo, Egypt
| | - N Magdy
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Organization of African Unity Street, Abassia, Cairo, Egypt
| | - Lobna A Hussein
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Organization of African Unity Street, Abassia, Cairo, Egypt
| | - A M El-Kosasy
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Organization of African Unity Street, Abassia, Cairo, Egypt
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10
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Baker MM, Hammad SF, Belal TS. Development and validation of a versatile HPLC-DAD method for simultaneous determination of the antiviral drugs daclatasvir, ledipasvir, sofosbuvir and ribavirin in presence of seven potential impurities. Application to assay of dosage forms and dissolution studies. Drug Dev Ind Pharm 2019; 45:1111-1119. [PMID: 30929537 DOI: 10.1080/03639045.2019.1593444] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
This study describes a simple, sensitive, specific and generic HPLC-DAD method for simultaneous determination of four drugs prescribed for treatment of Hepatitis C Virus (HCV) infection. Investigated drugs include daclatasvir (DAC), ledipasvir (LED), sofosbuvir (SOF) and ribavirin (RIB). Successful separation was accomplished using Thermohypersil BDS-C8 column (4.6 × 250 mm, 5 µm) with gradient elution of the mobile phase consisted of mixed phosphate buffer pH 7.5 and methanol. Gradient elution started with 25% methanol, ramped up linearly to 80% in 15 min then kept constant till the end of the run. Flow rate was 1.5 mL/min. Peak areas were measured at 235, 260, 315, and 332 nm for RIB, SOF, DAC, and LED, respectively. Peaks of the analytes were perfectly resolved with retention times 2.0, 12.1, 14.7, and 17.2 min for RIB, SOF, DAC, and LED, respectively. The developed method was validated according to ICH guidelines with respect to system suitability, linearity, ranges, accuracy, precision, specificity, robustness, and limits of detection and quantification. The proposed method showed good linearity in the ranges 5-500, 2-300, 0.5-75, and 0.5-75 µg/mL for RIB, SOF, DAC, and LED respectively. Limits of detection were 0.10-0.66 μg/mL for the analyzed drugs. Specificity was established by separation of target drugs from 7 process-related impurities for SOF including its major metabolite (GS-331007). Applicability of the proposed method to real life situations was assessed through the analysis of four different pharmaceutical formulations and satisfactory results were obtained. Additionally, dissolution profiles of the 4 drugs were studied using the developed method.
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Affiliation(s)
- Mostafa M Baker
- a Methodology Department , Pharco Pharmaceuticals Company , Alexandria , Egypt
| | - Sherif F Hammad
- b Pharmaceutical Chemistry Department, Faculty of Pharmacy , Helwan University , Helwan , Egypt
| | - Tarek S Belal
- c Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy , University of Alexandria , Alexandria , Egypt
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11
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Determination of sofosbuvir with two co-administered drugs; paracetamol and DL-methionine by two chromatographic methods. Application to a pharmacokinetic study. Bioanalysis 2019; 11:349-364. [PMID: 30873855 DOI: 10.4155/bio-2018-0191] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
AIM Two rapid and sensitive chromatographic methods have been developed and validated for simultaneous analysis of sofosbuvir (SOF) in rat plasma with two co-administered drugs, paracetamol (PAR) and DL-methionine (MET). MATERIALS & METHODS The first method relied on using TLC-densitometry with a developing system consisted of chloroform: methanol: glacial acetic acid: formic acid in the ratio of 9.5: 1: 1.5: 0.5, by volume. The studied analytes and the internal standard naphazoline hydrochloride were scanned at 210 nm. The second method was HPLC method, whereas the analytes and the internal standard cinnarizine were separated on XTerra® HPLC RP C18 column using gradient elution mode and a mobile phase consisted of methanol: 0.1% aqueous TEA at pH 3 adjusted with orthophosphoric acid at 210 nm. RESULTS The TLC-densitometry method showed linearity over concentration ranges of 160-3000 ng/band for SOF and PAR, 300-3000 ng/band for MET, but HPLC method was linear and validated over concentration ranges of 150-5000 ng/ml for SOF, 300-5000 ng/ml for both PAR and MET. CONCLUSION All validation parameters met the acceptance criteria according to US FDA guidelines. Pharmacokinetic study was successfully applied and proved the possibility of co-administration of SOF with PAR and MET.
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