Biomedical Chromatography最新文献

Specificity Testing in Bioanalytical Assay Validations—Challenges and Opportunities 生物分析试验验证中的特异性测试——挑战与机遇

IF 1.7 4区医学

Biomedical Chromatography Pub Date : 2026-10-19 DOI: 10.1002/bmc.70643

Raja Reddy Kallem, Michael G. Bartlett, Nuggehally R. Srinivas

{"title":"Specificity Testing in Bioanalytical Assay Validations—Challenges and Opportunities","authors":"Raja Reddy Kallem, Michael G. Bartlett, Nuggehally R. Srinivas","doi":"10.1002/bmc.70643","DOIUrl":"https://doi.org/10.1002/bmc.70643","url":null,"abstract":"<div>\u0000 \u0000 <p>Specificity assessment is essential in bioanalytical method development to ensure accurate analyte quantification in the presence of endogenous matrix components and potential exogenous interferences. Regulatory expectations have evolved over time, culminating in the harmonized ICH M10 guideline, which establishes a globally aligned framework for bioanalytical method validation. Although LC–MS/MS provides high analytical specificity, challenges remain, particularly from isobaric interferences and increasingly complex multi-analyte assays. A common practical issue is trace contamination of authentic reference standards, such as parent drug in metabolite standards or vice versa, which can generate unacceptable cross-signal contributions and compromise specificity assessments. When such impurities preclude conventional specificity testing, this perspective discusses scientifically justified approaches, including predetermined baseline corrections to account for contaminated standards. It also highlights incurred sample reanalysis (ISR) as a more meaningful assessment of assay specificity under these constrained conditions because it reflects the true in vivo composition of parent drug and metabolites. The application of ISR has emerged as a robust, regulatory-endorsed tool for confirming assay reliability over time and, as such, could also serve as an alternative for some of the issues discussed.</p>\u0000 </div>","PeriodicalId":8861,"journal":{"name":"Biomedical Chromatography","volume":"40 12","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149214722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Integrated UHPLC-MS/MS and DrugCIPHER-Based Network Pharmacology to Identify Signature Components and Evaluate Pharmacokinetics of Biyuan Tongqiao Granules in Rats 结合UHPLC-MS/MS和基于药物密码的网络药理学方法鉴定痹元通翘颗粒的特征成分并评价其在大鼠体内的药动学

IF 1.7 4区医学

Biomedical Chromatography Pub Date : 2026-10-19 DOI: 10.1002/bmc.70642

Zihao Wan, Fuguo Han, Xuemei Fan, Jing Zhang, Qian Liu, Tingyu Zhang, Yanli Hao, Fang Wei, Weihua Wang, Guimin Zhang, Yongxia Guan, Yiming Wang, Shao Li, Qingfei Liu

{"title":"Integrated UHPLC-MS/MS and DrugCIPHER-Based Network Pharmacology to Identify Signature Components and Evaluate Pharmacokinetics of Biyuan Tongqiao Granules in Rats","authors":"Zihao Wan, Fuguo Han, Xuemei Fan, Jing Zhang, Qian Liu, Tingyu Zhang, Yanli Hao, Fang Wei, Weihua Wang, Guimin Zhang, Yongxia Guan, Yiming Wang, Shao Li, Qingfei Liu","doi":"10.1002/bmc.70642","DOIUrl":"https://doi.org/10.1002/bmc.70642","url":null,"abstract":"<div>\u0000 \u0000 <p>Biyuan Tongqiao Granules (BTG) is commonly used TCM formula for the clinical treatment of acute rhinosinusitis (ARS). However, the systemic identification of its plasma-absorbed components and metabolites, as well as the pharmacokinetic profiles of its pharmacodynamically relevant signature compounds, remains poorly characterized. In this study, UHPLC-Q-Orbitrap HRMS was first employed to identify prototype components and their metabolites in rat plasma after intragastric administration of BTG. An integrated strategy combining DrugCIPHER-based network pharmacology and UHPLC-QTRAP-MS/MS was subsequently developed and applied to screen signature compounds for ARS treatment and investigate the pharmacokinetic behaviors of these signatures in rat plasma. A total of 38 prototype components and seven metabolites were unambiguously identified. Based on the potential targets and enriched pathways in network pharmacology analysis, six signature compounds (caffeic acid, baicalin, oxypeucedanin hydrate, luteolin, wogonoside, and wogonin) were screened, and a sensitive UHPLC-QTRAP-MS/MS method was established, which revealed that caffeic acid exhibited rapid absorption, whereas the other five components showed delayed absorption characteristics, and all detected compounds presented short elimination half-lives. This integrated analytical workflow provides a chemical and pharmacokinetic basis for further research and rational clinical use of BTG in ARS.</p>\u0000 </div>","PeriodicalId":8861,"journal":{"name":"Biomedical Chromatography","volume":"40 12","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149214723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Identification of Bioactive Compounds Produced by Probiotic Bacillus coagulans Using Gas Chromatography–Mass Spectrometry 气相色谱-质谱联用技术鉴定益生菌凝固芽孢杆菌产生的生物活性物质

IF 1.7 4区医学

Biomedical Chromatography Pub Date : 2026-10-19 DOI: 10.1002/bmc.70629

Nidhi Prajapati, Arati Chaudhary, Anamika Pathak, Jinil Patel, Ansh Prajapati, Anil Patani, Ashish Patel, Dharmendra Prajapati

{"title":"Identification of Bioactive Compounds Produced by Probiotic Bacillus coagulans Using Gas Chromatography–Mass Spectrometry","authors":"Nidhi Prajapati, Arati Chaudhary, Anamika Pathak, Jinil Patel, Ansh Prajapati, Anil Patani, Ashish Patel, Dharmendra Prajapati","doi":"10.1002/bmc.70629","DOIUrl":"https://doi.org/10.1002/bmc.70629","url":null,"abstract":"<div>\u0000 \u0000 <p>Metabolites from probiotic bacteria are gaining wider recognition as bioactive compounds having possible applications in the food, pharmaceutical, and healthcare sectors. Of these, <i>Bacillus coagulans</i> is one of the spore-producing probiotics recognized for its robustness and physiological benefits; however, there is a lack of information regarding the chemical diversity of these bacteria. This study aims to identify the bioactive compounds produced by <i>B. coagulans</i> (MTCC 9872) through the process of gas chromatography–mass spectrometry (GC–MS). Ethyl acetate, benzene, chloroform, hexane, and methanol were used to obtain the extracts of 4-day-old cultures. A total of 32 metabolites have been identified from diverse classes of chemicals including organic acids, hydrocarbons, carbohydrates, amino acid derivatives, phenols, and esters. Glycerol, azelaic acid, deoxyspergualin, and 2,4-di-tert-butylphenol are some of the important chemicals with antimicrobial, antioxidative, anti-inflammatory, immunomodulating, and antitumor activities. The current findings confirm that <i>B. coagulans</i> has potential applications in producing functional foods, nutraceuticals, and therapeutic products.</p>\u0000 </div>","PeriodicalId":8861,"journal":{"name":"Biomedical Chromatography","volume":"40 12","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149214724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization of Vinegar Processing for Yuanhu Zhitong Formula Enhances Antigastric Ulcer Efficacy: An Integrated Pharmacokinetic–Pharmacodynamic and Network Pharmacology Study 元湖止痛方醋制工艺优化增强抗胃溃疡疗效：药动学-药效学及网络药理学综合研究

IF 1.7 4区医学

Biomedical Chromatography Pub Date : 2026-10-09 DOI: 10.1002/bmc.70636

Guoqing Shan, Xuejiao Wang, Ajiao Hou, Rui Zhao, Chang Wang, Haixue Kuang, LiuYang, Hai Jiang

{"title":"Optimization of Vinegar Processing for Yuanhu Zhitong Formula Enhances Antigastric Ulcer Efficacy: An Integrated Pharmacokinetic–Pharmacodynamic and Network Pharmacology Study","authors":"Guoqing Shan, Xuejiao Wang, Ajiao Hou, Rui Zhao, Chang Wang, Haixue Kuang,  LiuYang, Hai Jiang","doi":"10.1002/bmc.70636","DOIUrl":"https://doi.org/10.1002/bmc.70636","url":null,"abstract":"<div>\u0000 \u0000 <p>This study aimed to explore the processing mechanism of single medicinal herbs in compound prescriptions, compare the pharmacodynamic and pharmacokinetic changes of Yuanhu Zhitong Formula before and after processing, and elucidate its underlying mechanism against gastric ulcers. The results showed that six components, namely, corydaline, coptisine chloride, palmatine, berberine chloride, phellopterin, and imperatorin, exerted anti-ulcer activities. The optimal vinegar-processing parameters for <i>Corydalis yanhusuo</i> were determined as follows: processing temperature of 84°C, vinegar dosage of 37%, and baking time of 35 min. Vinegar-processed <i>Corydalis yanhusuo</i> could accelerate the in vivo distribution of alkaloid components in the formula, elevate the plasma concentration, and prolong the in vivo retention time of coumarin components. The synergistic effects of the two types of active ingredients endow the vinegar-processed Yuanhu Zhitong Formula with significantly superior antigastric ulcer activity compared with the raw formula. Moreover, network pharmacology results revealed that this formula exerts therapeutic effects against gastric ulcers mainly by regulating the PI3K/AKT/mTOR signaling pathway. This study clarified the optimal processing technology and the pharmacodynamic material basis of Yuanhu Zhitong Formula against gastric ulcers, confirmed the efficacy-enhancing effect of processing, and provided data support for the formulation of its processing production standards and clinical medication.</p>\u0000 </div>","PeriodicalId":8861,"journal":{"name":"Biomedical Chromatography","volume":"40 11","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Robust UPLC–MS/MS Method for Simultaneous Quantification of 16 Multiclass Constituents in Jin-Deng-Shan-Gen Decoction and Its Application in a Disease-Model Pharmacokinetic Study 高效液相色谱-质谱联用法同时定量金灯山根汤16种多组分及其在疾病模型药动学研究中的应用

IF 1.7 4区医学

Biomedical Chromatography Pub Date : 2026-10-09 DOI: 10.1002/bmc.70638

Xiaoge Wang, Shuwen Cai, Jiaxuan Li, Lingyun Pan, Yu Wang, Rui Xu, Rong Shi, Jifeng Gu

{"title":"A Robust UPLC–MS/MS Method for Simultaneous Quantification of 16 Multiclass Constituents in Jin-Deng-Shan-Gen Decoction and Its Application in a Disease-Model Pharmacokinetic Study","authors":"Xiaoge Wang, Shuwen Cai, Jiaxuan Li, Lingyun Pan, Yu Wang, Rui Xu, Rong Shi, Jifeng Gu","doi":"10.1002/bmc.70638","DOIUrl":"https://doi.org/10.1002/bmc.70638","url":null,"abstract":"<div>\u0000 \u0000 <p>This study aimed to develop a robust UPLC-MS/MS method to address analytical challenges in quantifying multiclass constituents of Jin-Deng-Shan-Gen Decoction (JDSGD), and to apply it to investigate how acute pharyngitis alters its pharmacokinetic profile. A UPLC-MS/MS method for 16 structurally diverse JDSGD constituents was developed, addressing several technical challenges, comprehensively validated, and applied to a comparative pharmacokinetic study in normal and acute pharyngitis model rats after oral administration. The validated method achieved baseline separation of all analytes within 12 min, with LLOQs ranging from 0.0781 to 11.7 ng/mL. In this study, acute pharyngitis significantly altered the plasma exposure of most JDSGD analytes, accompanied by decreased intestinal mRNA expression of the tight junction proteins zonula occludens-1 and Occludin. In conclusion, this study established a robust UPLC-MS/MS method for the simultaneous quantification of multiple constituents in JDSGD. Its application effectively uncovered disease-induced pharmacokinetic alterations associated with intestinal barrier alterations, bridging analytical science and pathophysiological pharmacology while providing a reliable tool for pharmacokinetic and quality control studies.</p>\u0000 </div>","PeriodicalId":8861,"journal":{"name":"Biomedical Chromatography","volume":"40 11","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phytochemical Profiling, Antioxidant and Antidiabetic Potential of the Ethyl Acetate Fraction of Pilea scripta (Buch.-Ham. ex D.Don) Wedd.: Integrated In Vitro and In Silico Study 毛缕草乙酸乙酯部位的植物化学特征及其抗氧化和降糖作用。don)结婚。：体外和计算机集成研究。

IF 1.7 4区医学

Biomedical Chromatography Pub Date : 2026-10-06 DOI: 10.1002/bmc.70634

Navdeep Kour, Simran Singh, Karanvir Singh, Balbir Singh, Astha Bhatia

{"title":"Phytochemical Profiling, Antioxidant and Antidiabetic Potential of the Ethyl Acetate Fraction of Pilea scripta (Buch.-Ham. ex D.Don) Wedd.: Integrated In Vitro and In Silico Study","authors":"Navdeep Kour, Simran Singh, Karanvir Singh, Balbir Singh, Astha Bhatia","doi":"10.1002/bmc.70634","DOIUrl":"10.1002/bmc.70634","url":null,"abstract":"<div>\u0000 \u0000 <p>Medicinal plants have served as a cornerstone of traditional healthcare systems worldwide. <i>Pilea scripta</i> (Buch.-Ham. ex D.Don) Wedd. is a plant traditionally used by indigenous communities for diabetes management, although its phytochemical composition and pharmacological potential remain largely unexplored. This study characterised the phytoconstituents and evaluated the antioxidant and antidiabetic potential of <i>P. scripta</i>. Preliminary phytochemical screening was performed for the methanolic extract, while total phenolic and flavonoid contents were determined for the methanolic extract and its fractions. Antioxidant and antidiabetic activities were evaluated using DPPH, ABTS, phosphomolybdate, reducing power, DNA strand scission protection, α-amylase and α-glucosidase inhibition assays. Metabolite profiling by GC–MS and LC–QTOF-MS was followed by molecular docking of all identified compounds and molecular dynamics simulations of the most potent compounds. Ethyl acetate fraction showed the highest total phenolic (353.61 μg GAE/mg extract) and flavonoid (372.53 μg RE/mg extract) contents, significant DPPH (IC<sub>50</sub>: 85.406 μg/mL) and ABTS (IC<sub>50</sub>: 116.25 μg/mL) activities, high phosphomolybdate activity, reducing power, DNA strand protection, and potent α-amylase (IC<sub>50</sub>: 186.38 μg/mL) and α-glucosidase (IC<sub>50</sub>: 150.84 μg/mL) inhibitory activities. Molecular dynamics simulations confirmed stable interactions of the most potent compounds with both enzymes. These findings support traditional use of <i>P. scripta</i> for diabetes management.</p>\u0000 </div>","PeriodicalId":8861,"journal":{"name":"Biomedical Chromatography","volume":"40 11","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149103741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Challenge-Oriented Decision Tree for Analytical Method Selection in Metformin, Sodium–Glucose Cotransporter-2 (SGLT2) Inhibitors and Dipeptidyl Peptidase-4 (DPP-4) Inhibitors Triple Antidiabetic Fixed-Dose Combinations in Pharmaceutical Dosage Forms 二甲双胍、钠-葡萄糖共转运蛋白-2 （SGLT2）抑制剂和二肽基肽酶-4 （DPP-4）抑制剂三联抗糖尿病固定剂量药物剂型分析方法选择的挑战导向决策树

IF 1.7 4区医学

Biomedical Chromatography Pub Date : 2026-10-05 DOI: 10.1002/bmc.70617

Imad Osman Abu Reid

{"title":"Challenge-Oriented Decision Tree for Analytical Method Selection in Metformin, Sodium–Glucose Cotransporter-2 (SGLT2) Inhibitors and Dipeptidyl Peptidase-4 (DPP-4) Inhibitors Triple Antidiabetic Fixed-Dose Combinations in Pharmaceutical Dosage Forms","authors":"Imad Osman Abu Reid","doi":"10.1002/bmc.70617","DOIUrl":"10.1002/bmc.70617","url":null,"abstract":"<div>\u0000 \u0000 <p>Triple fixed-dose combinations (FDCs) comprising metformin, sodium–glucose cotransporter-2 (SGLT2) inhibitors and dipeptidyl peptidase-4 (DPP-4) inhibitors have become an important therapeutic option for type 2 diabetes mellitus but present significant analytical challenges owing to differences in dose ratio, polarity, ionization behaviour, solubility, ultraviolet absorption and chemical stability. This review critically evaluates analytical methods for the simultaneous determination of these combinations in pharmaceutical dosage forms, including ultraviolet spectrophotometry, high-performance thin-layer chromatography, reversed-phase and ultra-performance liquid chromatography, capillary electrophoresis and liquid chromatography–tandem mass spectrometry. Rather than describing published methods individually, the review comparatively assesses analytical performance, robustness, validation quality, stability-indicating capability, greenness and suitability for routine pharmaceutical quality control within the context of ICH Q2(R2), ICH Q14, USP <1220> and Analytical Quality by Design (AQbD). A major contribution is the development and retrospective validation of a challenge-based decision framework that integrates physicochemical properties, analytical objectives, regulatory requirements, laboratory capabilities and sustainability principles to support rational method selection. Validation against published methods demonstrated strong agreement with reported analytical strategies. Future perspectives highlight the potential of artificial intelligence, advanced chemometrics and emerging chromatographic technologies to advance analytical development for complex multicomponent pharmaceutical products.</p>\u0000 </div>","PeriodicalId":8861,"journal":{"name":"Biomedical Chromatography","volume":"40 11","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149103628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development and Validation of Two Analytical Methods Using High-Performance Liquid Chromatography and Atomic Absorption Spectroscopy for the Analysis of Tunisian Marketed Pharmaceutical Product-Based Insulin and Zinc: Application in Routine Stability Study 高效液相色谱和原子吸收光谱两种分析方法在突尼斯上市药品中胰岛素和锌的建立与验证：在常规稳定性研究中的应用

IF 1.7 4区医学

Biomedical Chromatography Pub Date : 2026-10-05 DOI: 10.1002/bmc.70585

Majdi Ben Messaoud, Sarra Mahfoudhi, Dorra Amor, Yassine Mokni, Kaouther Louati, Kaouther Zribi, Asma Omezzine, Fathi Safta

{"title":"Development and Validation of Two Analytical Methods Using High-Performance Liquid Chromatography and Atomic Absorption Spectroscopy for the Analysis of Tunisian Marketed Pharmaceutical Product-Based Insulin and Zinc: Application in Routine Stability Study","authors":"Majdi Ben Messaoud, Sarra Mahfoudhi, Dorra Amor, Yassine Mokni, Kaouther Louati, Kaouther Zribi, Asma Omezzine, Fathi Safta","doi":"10.1002/bmc.70585","DOIUrl":"10.1002/bmc.70585","url":null,"abstract":"<p>Given the widespread reliance on insulin among diabetic patients, ensuring its stability is an essential task not only for preserving its therapeutic efficacy but also for safeguarding patient health and safety. In addition, insulin storage practices were frequently misunderstood that may compromise drug potency. Moreover, there were discrepancies in the shelf lives of the different insulin products offered in Tunisia. Therefore, two analytical methods for the analysis of insulin using high-performance liquid chromatography coupled to ultraviolet detector (HPLC-UV) and zinc using atomic absorption spectroscopy (AAS) in Tunisian marketed pharmaceutical product-based insulin were employed. Then the stability of these products was assessed. The study showed good insulin stability at neutral pH exposed to daylight for at least 30 days at 25°C, whereas instability was revealed only in diluted solutions at pH 2. Our work highlights the necessity for a more comprehensive evaluation of insulin stability, particularly under conditions where consistent refrigeration is not feasible. Such an assessment is essential to inform practical storage guidelines and ensure therapeutic efficacy in resource-limited settings.</p>","PeriodicalId":8861,"journal":{"name":"Biomedical Chromatography","volume":"40 11","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13637064/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149103733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamic Changes and Diagnostic Value of Plasma Tryptophan and Its Metabolites in Different Stages of Hepatic Encephalopathy Detected by Ultra-Performance Liquid Chromatography–Tandem Mass Spectrometry 超高效液相色谱-串联质谱法检测肝性脑病不同阶段血浆色氨酸及其代谢物的动态变化及诊断价值

IF 1.7 4区医学

Biomedical Chromatography Pub Date : 2026-10-05 DOI: 10.1002/bmc.70635

Rui Zhou, Bao-Yi Shan, Zhen-Zhu Xue, Zhuo-Fan Yang, Rui Feng, Si-Yuan Zhong, Sheng Wang

{"title":"Dynamic Changes and Diagnostic Value of Plasma Tryptophan and Its Metabolites in Different Stages of Hepatic Encephalopathy Detected by Ultra-Performance Liquid Chromatography–Tandem Mass Spectrometry","authors":"Rui Zhou, Bao-Yi Shan, Zhen-Zhu Xue, Zhuo-Fan Yang, Rui Feng, Si-Yuan Zhong, Sheng Wang","doi":"10.1002/bmc.70635","DOIUrl":"10.1002/bmc.70635","url":null,"abstract":"<div>\u0000 \u0000 <p>Hepatic encephalopathy (HE) is a severe neuropsychiatric complication of liver disease. Early diagnosis remains challenging due to insidious onset and lack of stage-specific biomarkers. Tryptophan (TRP) metabolism is closely linked to the gut–liver–brain axis and is dysregulated in HE. However, most prior studies only compared a single HE model with controls, failing to uncover stage-to-stage dynamic alterations. Here, we quantified plasma TRP metabolites across HE stages 1–4 in a rat model using UPLC-MS/MS. Compared with the Sham group, ALT and AST peaked in HE2 and declined in HE3–HE4, reflecting massive acute hepatocyte necrosis followed by enzyme exhaustion, whereas histological liver injury and modified neurological severity score (mNSS) scores progressively worsened. TRP metabolites exhibited stage-dependent shifts: TRP, kynurenine, and XA fell, whereas 5-HT and IAA rose in HE1; TA increased in HE2-HE3; KA and XA elevated, but IPA dropped in HE4. These results indicated that plasma TRP metabolic profiles are closely linked to liver injury and neurological dysfunction during HE progression and serve as candidate staging biomarkers in rat models, awaiting further clinical-cohort validation. From a broader perspective, this study reveals dynamic reprogramming of TRP metabolism in HE, providing preclinical evidence for metabolomics-oriented diagnosis and targeted therapy.</p>\u0000 </div>","PeriodicalId":8861,"journal":{"name":"Biomedical Chromatography","volume":"40 11","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149103757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Identification of Quality Markers for Tongmai Qiangshen Medicinal Liquor in the Treatment of Heart Failure Based on Multicomponent Qualitative–Quantitative Analysis and Integrated Bioinformatics 基于多组分定性-定量分析和综合生物信息学的通脉强参药酒治疗心力衰竭质量标志物鉴定

IF 1.7 4区医学

Biomedical Chromatography Pub Date : 2026-10-05 DOI: 10.1002/bmc.70637

Yuanyuan Li, Jinnan Huo, Qiang Zhang, Tianjiao Li, Shuai Wang, Yongrui Bao, Xiansheng Meng

{"title":"Identification of Quality Markers for Tongmai Qiangshen Medicinal Liquor in the Treatment of Heart Failure Based on Multicomponent Qualitative–Quantitative Analysis and Integrated Bioinformatics","authors":"Yuanyuan Li, Jinnan Huo, Qiang Zhang, Tianjiao Li, Shuai Wang, Yongrui Bao, Xiansheng Meng","doi":"10.1002/bmc.70637","DOIUrl":"10.1002/bmc.70637","url":null,"abstract":"<div>\u0000 \u0000 <p>Heart failure (HF) is an end stage of cardiovascular diseases. Tongmai Qiangshen Medicinal Liquor (TMQSJ) is an over-the-counter traditional Chinese medicinal liquor, but its efficacy-related material basis and mechanisms in HF remain unclear. In this study, UPLC-Q-TOF-MS/MS was used to characterize TMQSJ constituents and prototype compounds in rat plasma. HPLC fingerprinting, spectrum-effect relationship analysis, single-compound activity evaluation, and integrative bioinformatics were combined to screen efficacy-related candidate quality markers and HF-associated candidate genes. A total of 223 compounds were characterized, including 33 prototype plasma components. Chemometric analysis identified caffeic acid, Epimedin A, Epimedin B, Epimedin C, and icariin as characteristic constituents. Spectrum-effect analysis based on 10 batches of TMQSJ and validation in DOX-injured AC16 cells highlighted Epimedin A, Epimedin B, and Epimedin C. Among them, Epimedin A and Epimedin C showed prototype plasma exposure and were prioritized as efficacy-related candidate quality markers. Integration of predicted targets of prototype plasma components with HF transcriptomic data and machine-learning analysis identified BCL2L1, STAT3, HIF1A, MAPK8, and ESR1 as five candidate core genes. Immune cell estimation and molecular docking provided computational clues. Overall, this study establishes an integrated framework linking chemical quality, pharmacological association, in vivo exposure, and mechanistic prediction for TMQSJ quality evaluation.</p>\u0000 </div>","PeriodicalId":8861,"journal":{"name":"Biomedical Chromatography","volume":"40 11","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149103810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0