Food Chemistry-X
·
2026
·
IF 9.2
Hongrui Lv,Shang Guo,Min Zhu,Fang Gao
Vinegar is a traditional fermented flavouring, which has been a commercial product for thousands of years. Ganoderma vinegar (GV), Astragalus vinegar (AV), and Winter jujube vinegar (WV) are new functional health vinegars. The study aimed to recognize and compare the volatile compounds (VOCs) and non-volatile compounds (NVCs) in these vinegars based on metabolomic fingerprint. A total of 2417 differentially accumulated metabolites were screened out, which were classified as 8 clustering patterns using K-means method. The relative contents of 1076, 884, 457 metabolites were highest in GV, AV, WV, respectively, indicating GV dominating the comparative profile. Most VOCs were correlated with sweet, followed by fruity, green, woody, floral, herbal, waxy, fresh, spicy, balsamic, nutty, apple. The characteristics of NVCs exhibited that GV was dominant, followed by AV and WV. The study provided reference for investigation of authenticity, quality and origin of vinegars, and contributed to medical treatment of vinegar.
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Chinese Journal of Natural Medicines
·
2019
·
IF 1.773
Yan YAN,Qiang LI,Hui-Zhi DU,Chen-Xi SHEN,Ai-Ping LI,Xiang-Ping PEI,Chen-Hui DU,Xue-Mei QIN
ABSTRACT Ziziphi Spinosae Semen (ZSS) has been used for treatment of insomnia in China for centuries. To reveal the influence of insomnia on the levels of the neurotransmitters including serotonin (5-HT), glutamic acid (Glu), γ -aminobutyric acid (GABA), noradrenaline (NE) and dopamine (DA), and to study the role of ZSS aqueous extract in the treatment of insomnia, an UPLC-ESI- MS/MS method was developed and validated for simultaneous determination of five neurotransmitters in the rat brain. The brain samples were pretreated by one-step direct protein precipitation with acetonitrile. The analytes were detected in positive mode with multiple reaction monitoring (MRM) and the procedure was completed in less than 10 min. The method showed a good linearity ( R 2 > 0.9967) with the other validation parameters were within acceptance range. The results indicated that the concentration of 5-HT, GABA and DA is significantly lower ( P < 0.01) in para -chlorophenylalanine (PCPA)-induced insomnia rat model group, while Glu and NE significantly higher than those in control group ( P < 0.01). Treatment with ZSS aqueous extract (4 or 8 g·kg –1 ·d –1 for seven days) could ameliorate the symptoms of insomnia by significantly changing the levels of the neurotransmitter parameters mentioned above. The data obtained in this study demonstrate that ZSS aqueous extract could ameliorate the symptoms of insomnia by modulating the levels of monoamines and amino acid neurotransmitters in the brain.
研究领域:
药理学
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神经科学
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中医药学
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JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
·
2023
·
IF 3.4
Jieping Zhao,Xiu Chen,Hengbin Zhang,Xiaoyan Liu,Yiwen Ma,Jianbiao Yao,Huidi Jiang,Hui Zhou
Shexiang Tongxin Dropping Pill (STDP) is a well-known compound preparation used in traditional Chinese medicine for treating cardiovascular diseases. Bufadienolides are the major active compounds of toad venom and are the key to the seven medicinal herbs that comprise STDP. In this study, a reliable and sensitive high-performance liquid chromatography-tandem mass spectrometry method was developed and validated for the quantitative determination of nine bufadienolides (bufalin, gamabufotalin, resibufogenin , marinobufagin , arenobufagin, desacetylcinobufagin, telocinobufagin, hellebrigenin, and hellebrigenol) in rat plasma and tissues (heart and liver). The chromatography column used was a Waters ACQUITY UPLC HSS-T3 column with gradient elution using mobile phase consisting of acetonitrile–water (0.1% formic acid added) at a flow rate of 0.25 mL/min. This method passed the methodological validation of plasma and tissues and was successfully applied to pharmacokinetic and tissue distribution studies after oral administration of STDP in healthy and ischemia-reperfusion (I/R) rats. This indicated that most bufadienolides were well absorbed and quickly distributed in the heart and liver. The area-under-the-curve (AUC) (0−t) of most analytes increased in a dose-dependent manner. Moreover, most of the tested components showed lower plasma and higher tissue concentrations in I/R rats than in healthy rats. The above results on the oral pharmacokinetics and tissue distribution may be helpful for the clinical application of STDP.
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FOOD CHEMISTRY
·
2022
·
IF 9.231
Meng Wang,Jingjing Wang,Kangkang Wang,Liugen Zhang,Xianglei Cao,Cheng Guo,Jide Wang,Bin Wu
More and more attention has been paid to the improved QuEChERS (quick, easy, cheap, effective, rugged and safe) method in dealing complex sample matrices, especially for the study of QuEChERS adsorbents. In this study, a magnetic mesoporous material, which was derived from MIL-88B modified by l -alanine, was synthesized as modified QuEChERS adsorbents for the simultaneous determination of multiple pesticides (Methomyl, Isoprocarb, Carbofuran, 3-Hydroxycarbofuran, Acetamiprid, Imidacloprid) in Chinese cabbage, celery, long bean and leek. The prepared magnetic adsorbents can effectively remove interfering substances from the sample, and the proposed modified QuEChERS method can reduce sample pretreatment time via an external magnetic field. To achieve the best performance of QuEChERS method, the clean-up time and amount of QuEChERS adsorbents were investigated. Under the optimized conditions, a simple, rapid and sensitive method for the determination of 6 pesticide residues in vegetables was established by coupling the modified QuEChERS to ultrahigh-performance liquid chromatography-tandem mass spectrometry. Excellent sensitivity (The limit of detection for the 6 pesticides ranged from 0.001 to 0.020 µg kg −1 ), satisfactory linearity (r 2 ≥ 0.9952), good recovery (73.9–107.7%) and good precision (3.6–16.9% for intraday relative standard deviation, 0.5–15.0% for interday relative standard deviation) were obtained. Compared with traditional QuEChERS method, the proposed method is simple, cost-effective, and efficient, which indicates that the method can be used to detect carbamate and neonicotinoid pesticides in real samples and provide an excellent pretreatment technique for the detection of trace multi-analytes from complex substrates.
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BIOMEDICAL CHROMATOGRAPHY
·
2021
·Vol. 35
·期 10
·e5174
·
IF 1.902
Yuan Lu,Na Li,Xiaoqin Zhu,Jie Pan,Yonglin Wang,Yanyu Lan,Yongjun Li,Aimin Wang,Jia Sun,Chunhua Liu
Polygonum orientale L . is a traditional Chinese medicine having extensive pharmacological activities including antimyocardial ischemia (MI) injury properties. Isoorientin, orientin, vitexin, quercitrin, astragalin and protocatechuic acid are the main compounds in P. orientale extract. The aim of this study was to establish an ultra-performance liquid chromatography–tandem mass spectrometry method for the determination of the content of these compounds in urine, feces and bile samples simultaneously and application of the method in a comparative excretion study in normal and MI model rats after oral administration of P. orientale extract. Chromatographic seperation was conducted on an Agilent Eclipse Plus C 18 column with the mobile phase consisting of 0.1% formic acid–acetonitrile and 0.1% formic acid–water. Negative ion multiple reaction monitoring mode was used for quantification. The six compounds had good linearity ( r ≥ 0.9921) and acceptable accuracy ranging from 10.10 to −5.82% The relative standard deviations of within-day precision and inter-day precision were <10.45 and 13.44%, respectively. The extraction recovery of the six analytes ranged from 80.31 to 101.47% and the matrix effect was 82.56–102.88%, indicating that the preparations of sample collected form urine, feces and bile were stable throughout analysis. The excretion amount of the six analytes increased in both normal and MI model rats’ urine, feces and bile in a 24 h period and became stable between 36 and 48 h after administration. The total excretion rate of six compounds was <5% in urine, feces and bile of normal and MI model rats. The excretion peak period for all compounds in MI rats was slower than that in normal rats. This excretion study provides insights for further application and research on P. orientale .
研究领域:
药理学
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分析化学
·
中药学
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FOOD CHEMISTRY
·
2025
·
IF 9.8
Yiheng Li,Xue Yang,Qimin Zhang,Longlin Wang,Huiyuan Guo,Xuhui Chen,Yantao Guo,Xiuping Li,Weibing Zhang,Pengjie Wang,Pengcheng Wen
Zhaiji millet vinegar (ZJMV) is a traditional grain-fermented condiment whose quality improvement is associated with aging time. This study revealed the evolution of physicochemical properties and whole-component of ZJMVs aging 2 to 10 years. Results demonstrated pH, chroma, and the content of total acid, reducing sugar, and amino acid nitrogen fluctuate dynamically, while antioxidant activities were significantly correlated with the content of total flavonoids, total phenols, tetramethylpyrazine, amino acids, and organic acids ( p < 0.05). GC-IMS and metabolomics identified 47 volatile organic compounds (VOCs) and 6530 metabolites, with 6 differential VOCs and 19 differential metabolites ( p < 0.05, variable importance in projection (VIP) > 1, fold change (FC) < 0.5 or > 2) being shared aging markers. KEGG pathway analysis indicated amino acid metabolism enriched the most differential metabolites, whereas biosynthesis of various alkaloids was critical. Our findings provide novel mechanistic insights into the quality development of ZJMV during aging.
研究领域:
食品科学
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分析化学
·
代谢组学
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风味化学
·
生物化学
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JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
·
2026
·
IF 3.4
XiangLong Chen,Jinhui Xu,Chengliang Wang,Lijuan Yang,Jinwei Fan,Tongtong Li,Qian Zhang,Yanxia Yu,Lian Tang,Shenjia Huang
Central nervous system (CNS) infections require adequate drug exposure at the site of action, yet antibiotic meropenem (MER) shows limited cerebrospinal fluid (CSF) penetration and easily undergoes non-enzymatic degradation to an inactive open-ring metabolite (ORM). In this study, we developed a simple, sensitive, and fast liquid chromatography tandem mass spectrometry (LC-MS/MS) method for the simultaneous determination of MER and ORM in human serum and CSF. Chromatographic separation was accomplished on an Agela Venusil MP C18 column, with MER-d6 and ORM-d6 as internal standards. Methanol was found to promote methanolysis, yielding a characteristic product ( m/z 416.2). Therefore, acetonitrile was selected as both the organic phase and the protein-precipitation solvent. Method validation was conducted according to the ICH M10 guideline. Follow validation, the method was successfully applied to 57 serum and 16 CSF samples. ORM concentrations in human CSF were reported for the first time. This method provides a valuable tool to support MER monitoring in patients with CNS infections.
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JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES
·
2016
·
IF 2.687
R. Xu,H.T. Gao,F. Zhu,W.X. Cao,Y.H.M. Yan,X. Zhou,Q. Xu,W.L. Ji
This research was mainly focused on the effects of food emulsifier on the bioavailability of six priority controlling phthalate acid esters (PAEs) for the further accurate assessment of their toxic effects, using the corresponding phthalate acid monoesters (PAMEs) in rats urine as biomarkers. Glycerin monostearate was chosen as typical food emulsifier. A method was established to determine PAMEs in urine from rats either in experimental group (integrated gavaged with glycerin monostearate and PAEs) or in control group (gavaged with PAEs only), by using solid-phase extraction (SPE) coupled with ultra performance liquid chromatography tandem mass spectrometry (SPE–UPLC–MS/MS). Extraction recoveries were more than 75% for all the PAMEs; the calibration curve was linear in the range of 1.0–1000.0 ng/mL with R 2 > 0.995; the limits of detection (LOD) were 0.30 ng/mL–0.50 ng/mL. In addition, by analysing quality control (QC) urine samples in 3 days, it showed that the method was precise and accurate, for the intra-day and inter-day RSD within 16%, and the accuracy more than 82%. Internal exposure amount of all PAEs in experimental group was significantly higher than that in control group with p values of less than 0.05 except for butyl benzyl phthalates (BBP) ( P = 0.07). The bioavailability of all PAEs ranged from 5.03% to 109.35% with the presence of food emulsifiers glycerin monostearate, observably higher than that without glycerin monostearate (1.12% to 54.39%). It indicated that food emulsifiers increased the bioavailability of PAEs and may lead to potential food safety risk, which should bring awareness and be further studied.
研究领域:
毒理学
·
分析化学
·
食品安全
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Journal of Food Measurement and Characterization
·
2024
·
IF 2.9
Zeng Xin,Wang Shang,Peng Ze,Wang Meng,Zhao Kui,Xu Ben Bin,Yin Xiongwei,Ibrahim Mohamed M.,Mersal Gaber A. M.,El-Bahy Zeinhom M.,Guo Zhanhu,Xiang Wei,Wang Jianwei
Non-alcoholic fatty liver disease is a prevalent chronic metabolic condition, for which no approved medications are available. As a condiment and traditional Chinese medicine, ginger can be useful in reducing the symptoms of non-alcoholic fatty liver disease. Although its active ingredients and mechanisms of action are unknown, there is a lack of research on them. The purpose of this study is to prepare magnetite (Fe 3 O 4 )@Stearoyl-CoA desaturase 1 (SCD1) materials and analyze them using ultra-high performance liquid-chromatography-mass spectrometry (UPLC-MS) for rapid screening of potential inhibitors of SCD1 in ginger. Based on this analysis, it has been shown that the primary components in ginger that bind SCD1 directly are gingerols, with 10-gingerol having a greater affinity for binding to SCD1 than 8-gingerol and 6-gingerol. Moreover, further studies indicated that free fatty acids (FFA)-induced lipid accumulation is improved by this class of compounds in normal human hepatocytes (THLE-3), with 10-gingerol being the most effective compound. This study provides a new insight into the mechanism, by which ginger contributes to the improvement of non-alcoholic fatty liver disease (NAFLD) and provide support for the effective use of 10-gingerol for the treatment of NAFLD.
研究领域:
药理学
·
代谢
·
肝病
·
天然产物
·
药物发现
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DALTON TRANSACTIONS
·
2023
·Vol. 52
·期 36
·12763-12778
·
IF 4
Qi Wen,Di Li,Chunyan Gao,Yuhang Xue,Lei Wu,Fang Song,Jun Zhou
In this paper, ultra-thin nanofiber PDI was obtained by self-assembly dispersion of commercial PDINH. A novel Co/Ni-MOF-74@PDI Z-scheme heterojunction photocatalyst material was constructed by a simple solvothermal method. XRD, SEM, TEM, FT-IR and other characterization techniques proved the successful preparation of the Co/Ni-MOF-74@PDI Z-scheme heterojunction photocatalyst material. By degrading chlortetracycline hydrochloride, it was found that the photocatalytic activity of Co/Ni-MOF-74@PDI was much higher than that of pure Co/Ni-MOF-74 and PDI. Subsequently, Co/Ni-MOF-74@PDI was used to activate H2O2 to further improve the degradation efficiency of chlortetracycline hydrochloride. It was found that the photocatalytic performance was greatly improved after the addition of 19.6 mM H2O2 to the system, and the degradation rate of chlortetracycline hydrochloride was 87% within 90 min. The electron transfer pathway and H2O2 activation mechanism of the Co/Ni-MOF-74@PDI composite photocatalyst were proved by free radical quenching experiments, electron paramagnetic resonance analysis and X-ray electron spectroscopy. Finally, the easy exfoliation point and degradation pathway of chlortetracycline hydrochloride were studied using density functional theory, UPLC-MS and toxicity evaluation software. It was found that the main active substances were h+, ˙O2, 1O2 and ˙OH, and the toxicity of chlortetracycline hydrochloride and its intermediates was evaluated.
研究领域:
材料科学
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环境科学
·
光化学
·
催化
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ANALYTICAL AND BIOANALYTICAL CHEMISTRY
·
2026
·
IF 4.1
Zhou Xinyue,Duan Sufei,Lou Yuye,Deng Yue,Feng Shuang,Liu Jiale,Zhang Jiarui,Xi Yalin,Shi Meiyun,Yin Lei
A sensitive UPLC-MS/MS method was developed and validated for quantifying polyethylene glycol 1000 (PEG1000) in zebrafish tissues, featuring a systematic comparison of two MS acquisition strategies. Through comprehensive optimization, the ammonium adduct [M+NH 4 ] + of the representative 18-EO oligomer ( m/z 828.5) was selected as the precursor ion, achieving approximately fourfold higher signal intensity than [M+H] + . Critically, the conventional high declustering potential in-source CID approach monitoring fragment ions was outperformed by the optimized MRM method monitoring the intact ammoniated precursor, which demonstrated 2.7-fold signal enhancement and superior selectivity. The integration of micro-solid-phase extraction (μ-SPE) further improved method performance, yielding 1.5-fold signal gain and markedly reduced matrix effects compared to conventional protein precipitation. The fully validated method exhibited excellent linearity (0.5–50 μg/mL, r > 0.995), accuracy, precision, and stability. Application to zebrafish tissue distribution studies revealed pronounced organ-specific accumulation following aqueous exposure to 200 μg/mL PEG1000, with highest concentrations in intestine tissue exhibiting a time-dependent increase, followed by muscle, while muscle maintained consistently low levels. This analytical platform, synergistically combining μ-SPE cleanup and ammoniated adduct-based MRM, offers superior sensitivity over in-source CID approaches and provides a practical framework for polymer bioanalysis, yielding critical insights into the in vivo fate of PEG-based compounds. The key novelties of this work are the following: (i) the first systematic comparison between ammoniated adduct MRM and high-DP in-source CID for PEG1000 quantification; (ii) the introduction of μ-SPE for sample preparation in zebrafish tissues, achieving 1.5-fold signal enhancement; and (iii) the successful application of this platform to reveal organ-specific accumulation patterns of PEG1000. Graphical abstract
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JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
·
2023
·
IF 3.4
Yao Wang,Yuhan Liu,Yutong Sha,Jia Li,Luyao Han,Huili Chen,Shengdi Su,Ning Li,Xijing Chen,Di Zhao
A chiral UPLC-MS/MS method was developed and validated to determine oxiracetam enantiomers in human plasma, urine, and feces. The R-Oxiracetam and S-Oxiracetam were quantified using a CHIRALPAK ®AD3 column at 25 ℃, and the resolution was greater than 3.2. The S-Oxiracetam is the eutome r that isresponsible for the treatment of various brain damage. Isocratic elution was conducted at a flow rate of 0.9 mL/min for 6 min using the mixture of methanol and acetonitrile (methanol:acetonitrile, 15:85) containing 0.3‰ formic acid . The methods showed linearity at the range of 0.5–100 µg/mL for each oxiracetam enantiomer. A comprehensive validation process was carried out, covering aspects including linearity, selectivity, carryover, accuracy, precision, interferences, matrix effect, recovery, dilution integrity and stability in matrix and solution. The validated methods were successfully applied to quantifying R-Oxiracetam and S-Oxiracetam in human plasma, urine, and feces of 12 healthy subjects treated with either a single dose of 2 g S-Oxiracetam injection or 4 g Oxiracetam injection in a phase-I clinical trial . There was no significant difference for plasma pharmacokinetic parameters of S-Oxiracetam between the two regimens ( P＞0.05 ). The S-Oxiracetam and Oxiracetam were primarily eliminated through urine in their original form, with cumulative excretion rates of 92.16% and 85.92%, respectively, within 24 h after administration. Enantiomers interconversion was not observed in the plasma, urine, or feces. The results of this study suggest that replacing 4 g Oxiracetam injection with 2 g S-Oxiracetam injection could offer clinical benefits by lowering the dosage and mitigating potential risks, based on the pharmacokinetic characteristics.
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