Pub Date : 2022-12-14DOI: 10.1080/10826076.2023.2199328
Nicole A. Schneck, Kshitij Khatri, M. Maust, Mark E Jennings, Julien Peltier, John F. Kellie
Abstract The possibilities to directly couple different separation methods with mass spectrometry (MS) for the analysis of intact proteins has attracted significant attention over the last decade. While sample preparation is critical for MS analyses, coupling an efficient separation method before MS can significantly improve the ability to resolve protein heterogeneity and reveal intact masses or higher-order structure information (e.g., PTM or conformation changes). To that end, this review focuses on common online separation techniques coupled with MS detection to detect antibodies or large proteins with a focus on biopharmaceutical applications. An overview of liquid chromatography modes, such as reversed-phase, size-exclusion, mixed-mode, hydrophobic interaction, and ion-exchange chromatography will be discussed, along with electrophoretic separation, gas-phase separation using ion-mobility and other next-generation tools. Finally, the application space within the biopharmaceutical industry will be discussed along with how improvements for separation techniques before MS detection can ultimately help characterize charge-, size-, or hydrophobic variants of novel biotherapeutics throughout all stages of drug development. GRAPHICAL ABSTRACT
{"title":"Separation techniques for intact antibody analysis by mass spectrometry","authors":"Nicole A. Schneck, Kshitij Khatri, M. Maust, Mark E Jennings, Julien Peltier, John F. Kellie","doi":"10.1080/10826076.2023.2199328","DOIUrl":"https://doi.org/10.1080/10826076.2023.2199328","url":null,"abstract":"Abstract The possibilities to directly couple different separation methods with mass spectrometry (MS) for the analysis of intact proteins has attracted significant attention over the last decade. While sample preparation is critical for MS analyses, coupling an efficient separation method before MS can significantly improve the ability to resolve protein heterogeneity and reveal intact masses or higher-order structure information (e.g., PTM or conformation changes). To that end, this review focuses on common online separation techniques coupled with MS detection to detect antibodies or large proteins with a focus on biopharmaceutical applications. An overview of liquid chromatography modes, such as reversed-phase, size-exclusion, mixed-mode, hydrophobic interaction, and ion-exchange chromatography will be discussed, along with electrophoretic separation, gas-phase separation using ion-mobility and other next-generation tools. Finally, the application space within the biopharmaceutical industry will be discussed along with how improvements for separation techniques before MS detection can ultimately help characterize charge-, size-, or hydrophobic variants of novel biotherapeutics throughout all stages of drug development. GRAPHICAL ABSTRACT","PeriodicalId":16295,"journal":{"name":"Journal of Liquid Chromatography & Related Technologies","volume":"45 1","pages":"271 - 283"},"PeriodicalIF":1.3,"publicationDate":"2022-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42462648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-14DOI: 10.1080/10826076.2023.2196326
Mohamed A. ElHamid, Ehab F Elkady, E. Mostafa
Abstract The use of (Netupitant and Palonosetron) combination to treat nausea and vomiting in cancer chemotherapy patients has been authorized by the Food and Drug Administration. For the simultaneous determination of Netupitant (NET) and palonosetron (PAL) in the presence of two of their related substances and in their dosage form, a sensitive and selective RP-HPLC method has been developed and validated. The aforementioned medications were separated and quantified with the help of experimental design. The Box-Behnken design was used in the experiment to optimize the chromatographic method’s analytical parameters. It employed RP-HPLC with a UV detector. Waters ODS-C18 column (3.5 µm, 75 × 4.6 mm) with a mobile phase composed of acetonitrile: 25 mM phosphate buffer (pH = 3.5) in a gradient mode at 254 nm was employed to separate the cited drugs and their impurities. Palonosetron was linear over the concentration range (1–50 µg/mL) and Netupitant (10–100 µg/mL). According to ICH guidelines, the new method underwent thorough validation. Between the proposed method’s results and those from the reported method, there was no significant difference. It is easy to apply the technique to the analysis of the specified drugs in their combination dosage form for quality control considerations. Graphical Abstract
{"title":"Application of Box-Behnken design for optimization of A RP-HPLC method for determination of palonosetron and netupitant in their combined dosage form in presence of their impurities","authors":"Mohamed A. ElHamid, Ehab F Elkady, E. Mostafa","doi":"10.1080/10826076.2023.2196326","DOIUrl":"https://doi.org/10.1080/10826076.2023.2196326","url":null,"abstract":"Abstract The use of (Netupitant and Palonosetron) combination to treat nausea and vomiting in cancer chemotherapy patients has been authorized by the Food and Drug Administration. For the simultaneous determination of Netupitant (NET) and palonosetron (PAL) in the presence of two of their related substances and in their dosage form, a sensitive and selective RP-HPLC method has been developed and validated. The aforementioned medications were separated and quantified with the help of experimental design. The Box-Behnken design was used in the experiment to optimize the chromatographic method’s analytical parameters. It employed RP-HPLC with a UV detector. Waters ODS-C18 column (3.5 µm, 75 × 4.6 mm) with a mobile phase composed of acetonitrile: 25 mM phosphate buffer (pH = 3.5) in a gradient mode at 254 nm was employed to separate the cited drugs and their impurities. Palonosetron was linear over the concentration range (1–50 µg/mL) and Netupitant (10–100 µg/mL). According to ICH guidelines, the new method underwent thorough validation. Between the proposed method’s results and those from the reported method, there was no significant difference. It is easy to apply the technique to the analysis of the specified drugs in their combination dosage form for quality control considerations. Graphical Abstract","PeriodicalId":16295,"journal":{"name":"Journal of Liquid Chromatography & Related Technologies","volume":"45 1","pages":"247 - 258"},"PeriodicalIF":1.3,"publicationDate":"2022-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42325336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-14DOI: 10.1080/10826076.2023.2192282
M. Zamani-Kalajahi, Ali Abolhassani, Samin Hamidi, M. Nemati
Abstract A magnetic Mg/Fe layered double hydroxide (magnetic LDH) nanocomposite was successfully prepared and used as a suitable adsorbent to simultaneously extract vitamins B1 and B6 from complex infant formula and food supplements. The important parameters affecting the extraction were optimized and the final parameters are as follows; the amount of adsorbent (20 mg), extraction time (6 min), elution time (8 min), and elution solvent ethanol in 750 µL. As-prepared nanoadsorbent was successfully in magnetic solid phase extraction set-up with no hazardous solvents and extraction performed in 6 min. The structure of nanoadsorbnet is lamellar, providing a wide surface to extract the analytes. The quantification of the analytes was accomplished using the liquid chromatography-tandem mass (LC/MS-MS) technique. Under optimum extraction conditions, the linearity ranged from 4 to 1000 ng/mL (vitamin B1) and 20 to 1000 ng/mL (vitamin B6), and the correlation of coefficients (R2) was obtained better than 0.99. The intra-day (n = 3) and inter-day precisions (n = 3 working days) calculated in the form of percent relative standard deviations (%RSDs) were obtained below 10.20%. The proposed method was successfully practiced for analyzing vitamins B1 and B6 in several brands of infant formulas and food supplements. Graphical Abstract
{"title":"Determination of vitamins B1 and B6 in infant formula and food supplement samples using magnetic layered double hydroxide nanoadsorbent before liquid chromatography-tandem mass spectrometry","authors":"M. Zamani-Kalajahi, Ali Abolhassani, Samin Hamidi, M. Nemati","doi":"10.1080/10826076.2023.2192282","DOIUrl":"https://doi.org/10.1080/10826076.2023.2192282","url":null,"abstract":"Abstract A magnetic Mg/Fe layered double hydroxide (magnetic LDH) nanocomposite was successfully prepared and used as a suitable adsorbent to simultaneously extract vitamins B1 and B6 from complex infant formula and food supplements. The important parameters affecting the extraction were optimized and the final parameters are as follows; the amount of adsorbent (20 mg), extraction time (6 min), elution time (8 min), and elution solvent ethanol in 750 µL. As-prepared nanoadsorbent was successfully in magnetic solid phase extraction set-up with no hazardous solvents and extraction performed in 6 min. The structure of nanoadsorbnet is lamellar, providing a wide surface to extract the analytes. The quantification of the analytes was accomplished using the liquid chromatography-tandem mass (LC/MS-MS) technique. Under optimum extraction conditions, the linearity ranged from 4 to 1000 ng/mL (vitamin B1) and 20 to 1000 ng/mL (vitamin B6), and the correlation of coefficients (R2) was obtained better than 0.99. The intra-day (n = 3) and inter-day precisions (n = 3 working days) calculated in the form of percent relative standard deviations (%RSDs) were obtained below 10.20%. The proposed method was successfully practiced for analyzing vitamins B1 and B6 in several brands of infant formulas and food supplements. Graphical Abstract","PeriodicalId":16295,"journal":{"name":"Journal of Liquid Chromatography & Related Technologies","volume":"45 1","pages":"227 - 236"},"PeriodicalIF":1.3,"publicationDate":"2022-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47567120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-11-01Epub Date: 2022-05-16DOI: 10.1007/s12264-022-00860-7
Liyao Qiu, Bin Zhang, Zhihua Gao
Neurons are highly interwoven to form intricate neural circuits that underlie the diverse functions of the brain. Dissecting the anatomical organization of neural circuits is key to deciphering how the brain processes information, produces thoughts, and instructs behaviors. Over the past decades, recombinant viral vectors have become the most commonly used tracing tools to define circuit architecture. In this review, we introduce the current categories of viral tools and their proper application in circuit tracing. We further discuss some advances in viral tracing strategy and prospective innovations of viral tools for future study.
{"title":"Lighting Up Neural Circuits by Viral Tracing.","authors":"Liyao Qiu, Bin Zhang, Zhihua Gao","doi":"10.1007/s12264-022-00860-7","DOIUrl":"10.1007/s12264-022-00860-7","url":null,"abstract":"<p><p>Neurons are highly interwoven to form intricate neural circuits that underlie the diverse functions of the brain. Dissecting the anatomical organization of neural circuits is key to deciphering how the brain processes information, produces thoughts, and instructs behaviors. Over the past decades, recombinant viral vectors have become the most commonly used tracing tools to define circuit architecture. In this review, we introduce the current categories of viral tools and their proper application in circuit tracing. We further discuss some advances in viral tracing strategy and prospective innovations of viral tools for future study.</p>","PeriodicalId":16295,"journal":{"name":"Journal of Liquid Chromatography & Related Technologies","volume":"31 1","pages":"1383-1396"},"PeriodicalIF":5.9,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9672192/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81675434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Ginkgo ketoester tablets (GT) and donepezil are clinically used in combination to treat Alzheimer’s disease (AD). This study aimed to investigate the anti-dementia effects of two drugs alone and in combination by monitoring the distribution patterns of their active components in different biological matrices. A practical analytical method was developed for simultaneously quantifying 38 active compounds in different matrices at trace levels using ultra-performance liquid chromatography coupled with triple-quadrupole linear ion-trap tandem mass spectrometry (UHPLC-MS2). Under optimized conditions, good chromatographic separation of the 38 target compounds was achieved within 14 min, with acceptable linearity, limits of detections and quantifications, precision, stability, and extraction recovery and matrix effects. The developed analytical method quantified the 38 active components in the brain, plasma, intestine, and intestinal contents of AD mice treated with GT alone, donepezil alone, and a combination of the two drugs. The result showed that the combination group had enhanced anti-dementia active compounds and reduced levels of toxic compounds entering the targeted tissues. These findings support the combined use of GT and donepezil for increasing anti-dementia treatment efficiency and reducing toxicity. The proposed UHPLC-MS2 strategy could be used to monitor the levels of active compounds from different biological matrices in future studies. Graphical Abstract
{"title":"Simultaneous quantification of multiple active components of the ginkgo ketoester tablet when combined with donepezil in four biological matrices from an Alzheimer’s animal model: Evaluation of drug distribution patterns in vivo","authors":"Wen-Xia Pi, Xiao-Yu Huan, Yushun Zhuang, Jing Zhang, Xu-qin Shi, Gui-Sheng Zhou","doi":"10.1080/10826076.2023.2182318","DOIUrl":"https://doi.org/10.1080/10826076.2023.2182318","url":null,"abstract":"Abstract Ginkgo ketoester tablets (GT) and donepezil are clinically used in combination to treat Alzheimer’s disease (AD). This study aimed to investigate the anti-dementia effects of two drugs alone and in combination by monitoring the distribution patterns of their active components in different biological matrices. A practical analytical method was developed for simultaneously quantifying 38 active compounds in different matrices at trace levels using ultra-performance liquid chromatography coupled with triple-quadrupole linear ion-trap tandem mass spectrometry (UHPLC-MS2). Under optimized conditions, good chromatographic separation of the 38 target compounds was achieved within 14 min, with acceptable linearity, limits of detections and quantifications, precision, stability, and extraction recovery and matrix effects. The developed analytical method quantified the 38 active components in the brain, plasma, intestine, and intestinal contents of AD mice treated with GT alone, donepezil alone, and a combination of the two drugs. The result showed that the combination group had enhanced anti-dementia active compounds and reduced levels of toxic compounds entering the targeted tissues. These findings support the combined use of GT and donepezil for increasing anti-dementia treatment efficiency and reducing toxicity. The proposed UHPLC-MS2 strategy could be used to monitor the levels of active compounds from different biological matrices in future studies. Graphical Abstract","PeriodicalId":16295,"journal":{"name":"Journal of Liquid Chromatography & Related Technologies","volume":"45 1","pages":"204 - 216"},"PeriodicalIF":1.3,"publicationDate":"2022-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41767540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-02DOI: 10.1080/10826076.2023.2182317
Solehah Mohd Rosdan Bushra, A. Nurul
Abstract Medicinal mushrooms are conventionally used in the traditional medicine to treat or prevent illnesses. Polysaccharides are an important component in the mushrooms, a major contributor in their biological properties, and have been extensively studied since the past two decades. Medicinal mushrooms contain a class of polysaccharide known as β-glucan that possesses various biological activities. However, there are also other polysaccharides types that have been described to possess therapeutic potentials but they are less popular than the β-glucan. This review summarizes related information correlated to the mushroom polysaccharide structure, isolation and characterization methods, and their roles in biological activities including immunomodulatory, anticancer, anti-inflammatory, antioxidant and anti-microbial properties. Graphical Abstract
{"title":"Bioactive mushroom polysaccharides: The structure, characterization and biological functions","authors":"Solehah Mohd Rosdan Bushra, A. Nurul","doi":"10.1080/10826076.2023.2182317","DOIUrl":"https://doi.org/10.1080/10826076.2023.2182317","url":null,"abstract":"Abstract Medicinal mushrooms are conventionally used in the traditional medicine to treat or prevent illnesses. Polysaccharides are an important component in the mushrooms, a major contributor in their biological properties, and have been extensively studied since the past two decades. Medicinal mushrooms contain a class of polysaccharide known as β-glucan that possesses various biological activities. However, there are also other polysaccharides types that have been described to possess therapeutic potentials but they are less popular than the β-glucan. This review summarizes related information correlated to the mushroom polysaccharide structure, isolation and characterization methods, and their roles in biological activities including immunomodulatory, anticancer, anti-inflammatory, antioxidant and anti-microbial properties. Graphical Abstract","PeriodicalId":16295,"journal":{"name":"Journal of Liquid Chromatography & Related Technologies","volume":"45 1","pages":"174 - 190"},"PeriodicalIF":1.3,"publicationDate":"2022-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42013494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-02DOI: 10.1080/10826076.2023.2183867
Prasiddhi Raikar, P. Dandagi, Amruta Balekundri
Abstract World Health Organization estimates that 10% of medications are of inferior quality, thus dangerous to human health. One way to avoid such a problem is to create an adequate, economical, and competitive analytical system. As a result, the study’s goal is to create a High-Performance Thin Layer Chromatography (HP-TLC) method for determining capecitabine (CAP) and thymoquinone (TQ) simultaneously. To the best of our knowledge, no such method for determining CAP and TQ simultaneously exists today. The method was created by implementing an analytical quality-by-design approach based on the Box–Behnken design (BBD) to optimize the chromatographic conditions and a combination of factors such as toluene volume (A), solvent front (B), and chamber saturation time (C), all of which were likely to affect the R f of CAP and TQ, respectively, later validated using TLC-silica coated plate 60 F254. The validated parameters were within an acceptable range, according to ICH guidelines. BBD design revealed that the volume of toluene and solvent front had a greater effect on all of the responses studied and thus needs to be controlled. The developed method of the analysis was found to be facile, dependable, expeditious, cost-effective, and could be used to quantify CAP and TQ in Nanoformulation. Graphical Abstract RESEARCH HIGHLIGHTS To determine both the drugs in nanoformulation, an accelerated and expeditious densiometric HP-TLC method was developed and validated. Particle size, zeta potential, entrapment efficiency (EE), Scanning Electron Microscopy (SEM), and Transmission Electron Microscopy (TEM) analysis were all performed on the prepared nanoformulation. According to ICH guidelines, the developed method has been tested for linearity, range, detection limit, quantification limit, precision, and robustness. A review of the literature reveals that there are several methods for determining CAP and TQ individually but no HP-TLC method has been reported for simultaneous estimation of CAP and TQ in the combined dosage form. Changes in mobile phase volume and changes in chamber saturation duration showed percent RSD-within the 2% criterion, confirming the robustness of the developed method.
{"title":"An HP-TLC densitometric method and fingerprinting for estimating capecitabine and thymoquinone simultaneously and its application in nanoscience using Box–Behnken design","authors":"Prasiddhi Raikar, P. Dandagi, Amruta Balekundri","doi":"10.1080/10826076.2023.2183867","DOIUrl":"https://doi.org/10.1080/10826076.2023.2183867","url":null,"abstract":"Abstract World Health Organization estimates that 10% of medications are of inferior quality, thus dangerous to human health. One way to avoid such a problem is to create an adequate, economical, and competitive analytical system. As a result, the study’s goal is to create a High-Performance Thin Layer Chromatography (HP-TLC) method for determining capecitabine (CAP) and thymoquinone (TQ) simultaneously. To the best of our knowledge, no such method for determining CAP and TQ simultaneously exists today. The method was created by implementing an analytical quality-by-design approach based on the Box–Behnken design (BBD) to optimize the chromatographic conditions and a combination of factors such as toluene volume (A), solvent front (B), and chamber saturation time (C), all of which were likely to affect the R f of CAP and TQ, respectively, later validated using TLC-silica coated plate 60 F254. The validated parameters were within an acceptable range, according to ICH guidelines. BBD design revealed that the volume of toluene and solvent front had a greater effect on all of the responses studied and thus needs to be controlled. The developed method of the analysis was found to be facile, dependable, expeditious, cost-effective, and could be used to quantify CAP and TQ in Nanoformulation. Graphical Abstract RESEARCH HIGHLIGHTS To determine both the drugs in nanoformulation, an accelerated and expeditious densiometric HP-TLC method was developed and validated. Particle size, zeta potential, entrapment efficiency (EE), Scanning Electron Microscopy (SEM), and Transmission Electron Microscopy (TEM) analysis were all performed on the prepared nanoformulation. According to ICH guidelines, the developed method has been tested for linearity, range, detection limit, quantification limit, precision, and robustness. A review of the literature reveals that there are several methods for determining CAP and TQ individually but no HP-TLC method has been reported for simultaneous estimation of CAP and TQ in the combined dosage form. Changes in mobile phase volume and changes in chamber saturation duration showed percent RSD-within the 2% criterion, confirming the robustness of the developed method.","PeriodicalId":16295,"journal":{"name":"Journal of Liquid Chromatography & Related Technologies","volume":"45 1","pages":"217 - 225"},"PeriodicalIF":1.3,"publicationDate":"2022-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41770517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-02DOI: 10.1080/10826076.2023.2168691
S. T. Hassib, Marwa A. Moffid, N. A. Aly, E. Mostafa
Abstract More than 2.9 million people have died as a result of the global demographic impact of the coronavirus illness of 2019 (COVID-19). Numerous antiviral and anti-inflammatory medications have FDA approval to treat COVID-19 patients. For the simultaneous determination of COVID-19 utilized medications (Remdesivir, Moxifloxacin, Dexamethasone, Apixaban, and paracetamol) in their dosage forms, a sensitive technique has been developed and validated. The aforementioned medications were separated and quantified with the help of experimental design. The Box-Behnken design was used in the experiment to optimize the chromatographic method’s analytical parameters. It employed RP-HPLC with a UV detector. An INERTSIL ODS-3 C18 column (5 µm, 250 × 4.6 mm) with mobile phase composed of acetonitrile: 30 mmoL potassium dihydrogen phosphate buffer (pH = 7.5) (50:50, v/v), at room temperature was employed to separate the aforementioned drugs. Paracetamol was linear over the concentration range (1–50 µg/mL), Moxifloxacin (5–70 µg/mL), Apixaban (5–70 µg/mL), Dexamethasone (1–100 µg/mL), and Remdesivir (5–100 µg/mL). According to ICH guidelines, the new approach underwent thorough validation. Between the proposed method’s results and those from the reference or reported methods, there was no significant difference. The technique is simple to use in research of the cited medications in their dosage forms for quality control aspects. Graphical Abstract
{"title":"Development of a multivariate model with desirability-based optimization for simultaneous determination of five co-administrated drugs for the management of COVID-19 infection in their dosage forms via validated RP-HPLC method","authors":"S. T. Hassib, Marwa A. Moffid, N. A. Aly, E. Mostafa","doi":"10.1080/10826076.2023.2168691","DOIUrl":"https://doi.org/10.1080/10826076.2023.2168691","url":null,"abstract":"Abstract More than 2.9 million people have died as a result of the global demographic impact of the coronavirus illness of 2019 (COVID-19). Numerous antiviral and anti-inflammatory medications have FDA approval to treat COVID-19 patients. For the simultaneous determination of COVID-19 utilized medications (Remdesivir, Moxifloxacin, Dexamethasone, Apixaban, and paracetamol) in their dosage forms, a sensitive technique has been developed and validated. The aforementioned medications were separated and quantified with the help of experimental design. The Box-Behnken design was used in the experiment to optimize the chromatographic method’s analytical parameters. It employed RP-HPLC with a UV detector. An INERTSIL ODS-3 C18 column (5 µm, 250 × 4.6 mm) with mobile phase composed of acetonitrile: 30 mmoL potassium dihydrogen phosphate buffer (pH = 7.5) (50:50, v/v), at room temperature was employed to separate the aforementioned drugs. Paracetamol was linear over the concentration range (1–50 µg/mL), Moxifloxacin (5–70 µg/mL), Apixaban (5–70 µg/mL), Dexamethasone (1–100 µg/mL), and Remdesivir (5–100 µg/mL). According to ICH guidelines, the new approach underwent thorough validation. Between the proposed method’s results and those from the reference or reported methods, there was no significant difference. The technique is simple to use in research of the cited medications in their dosage forms for quality control aspects. Graphical Abstract","PeriodicalId":16295,"journal":{"name":"Journal of Liquid Chromatography & Related Technologies","volume":"45 1","pages":"191 - 203"},"PeriodicalIF":1.3,"publicationDate":"2022-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47505398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-02DOI: 10.1080/10826076.2023.2165097
A. Daku, S. B. Al-Mhanna, Ruzilawati Abu Bakar, A. Nurul
Abstract For centuries, many natural products are known to contain a wide range of glycolipid compounds; some are chemical substances that produce a definite biological/physiological effect. Isolation and characterization of glycolipids are evolving with new techniques being or under development. This review gives a brief description of different methods of natural glycolipids extraction, isolation, and characterization. Modern extraction instruments and techniques accelerate glycolipids’ extraction processes. Chromatographic methods, such as column chromatography and TLC are the most commonly used techniques for glycolipid isolation and purification, different characterization techniques ranging from chemical methods, reagents spray UV-detection, MS, FTIR, and NMR with later tandem-MS, TOF, FID, ESI, and ELSD modifications of the existing techniques allowing faster, more sensitive and direct analysis. Graphical Abstract
{"title":"Glycolipids isolation and characterization from natural source: A review","authors":"A. Daku, S. B. Al-Mhanna, Ruzilawati Abu Bakar, A. Nurul","doi":"10.1080/10826076.2023.2165097","DOIUrl":"https://doi.org/10.1080/10826076.2023.2165097","url":null,"abstract":"Abstract For centuries, many natural products are known to contain a wide range of glycolipid compounds; some are chemical substances that produce a definite biological/physiological effect. Isolation and characterization of glycolipids are evolving with new techniques being or under development. This review gives a brief description of different methods of natural glycolipids extraction, isolation, and characterization. Modern extraction instruments and techniques accelerate glycolipids’ extraction processes. Chromatographic methods, such as column chromatography and TLC are the most commonly used techniques for glycolipid isolation and purification, different characterization techniques ranging from chemical methods, reagents spray UV-detection, MS, FTIR, and NMR with later tandem-MS, TOF, FID, ESI, and ELSD modifications of the existing techniques allowing faster, more sensitive and direct analysis. Graphical Abstract","PeriodicalId":16295,"journal":{"name":"Journal of Liquid Chromatography & Related Technologies","volume":"45 1","pages":"165 - 173"},"PeriodicalIF":1.3,"publicationDate":"2022-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44847756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-21DOI: 10.1080/10826076.2022.2163499
Cui Ji, Weidi Zhao, Jie Zheng, Shi Zhou, Jun-sheng Tian, Yumei Han, Xuemei Qin
Abstract Depression accounts for 10% of the total global burden of nonfatal disease. Xiaoyao Powder, a well-known traditional Chinese medicine is commonly used to treat depression. However, its therapeutic mechanisms have not yet been fully elucidated. In this study, a rat depression model was established by the application of chronic unpredictable mild stress (CUMS). The depressed rats were randomly distributed to four groups: Blank Control, CUMS control, CUMS with Venlafaxine (a positive control) treatment, and CUMS with Xiaoyao Powder treatment, with 12 rats in each group. Depression behavioral and exercise tests were performed weekly during the four-week intervention. Stable isotope tracer metabolomics and molecular biology techniques were utilized to determine the changes in serum metabolites pre and post the intervention period, aiming to elucidate the mechanism of Xiaoyao Powder in improving the depression symptoms and exercise capacity of the depressed rats. The results found that the Xiaoyao Powder treatment significantly improved the performance in the behavioral and exercise tests, as well as affected the levels of metabolites, such as pyruvic acid, lactic acid, and citric acid in serum. It was concluded that Xiaoyao Powder intervention had a significant effect on the pyruvic acid metabolism, glycolysis/gluconeogenesis, and tricarboxylic acid cycle in the serum of the depressed rats, which could contribute to the understanding of the mechanism of the intervention. GRAPHICAL ABSTRACT
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