A sterol panel for rare lipid disorders: sitosterolemia, cerebrotendinous xanthomatosis and Smith-Lemli-Opitz syndrome by Alexander Bauer Westbye, Lili L. Dizdarevic, Sandra R. Dahl, Emil Andreas Asprusten, Yngve Thomas Bliksrud, Anita Lövgren Sandblom, Ulf Diczfalusy, Per M. Thorsby, Kjetil Retterstøl

“…A simple and rapid method to extract free sterols from human serum and quantitate their concentration using isotope-dilution liquid chromatography-tandem mass spectrometry (LC-MS/MS) without derivatization was developed. …”
Get full text

Prevalence of Vitamin K2 Deficiency and Its Association with Coronary Artery Disease: A Case–Control Study by Sameh A. Ahmed, Abdulaziz A. Yar, Anas M. Ghaith, Rayan N. Alahmadi, Faisal A. Almaleki, Hassan S. Alahmadi, Waleed H. Almaramhy, Ahmed M. Alsaedi, Man K. Alraddadi, Hussein M. Ismail

“…Methods: This case–control study enrolled CAD patients and healthy controls to assess and compare serum concentrations of two vitamin K2 analogs including menaquinone-4 (MK-4) and menaquinone-7 (MK-7) via ultra-performance liquid chromatography with tandem mass spectrometry (UPLC-MS/MS). …”
Get full text

Comprehensive metabolite profiling and evaluation of anti-nociceptive and anti-inflammatory potencies of Nypa fruticans (Wurmb.) leaves: Experimental and in-silico approaches by Farhana Islam, Md. Aktaruzzaman, Md. Tarikul Islam, Fariya Islam Rodru, Saquiba Yesmine

“…High-performance liquid chromatography (HPLC) and gas chromatography-mass spectroscopy (GC-MS) were employed to identify the phytochemicals in EENF. …”
Get full text

Removal of Matrix Interferences by Nano-MgO and Co-Adsorbents for Accurate Multi-Pesticide Residue Analysis in the Chinese Medicinal Herb, Paeoniae Radix Alba by Chunyu Wang, Xinquan Wang, Jiao Wang, Shanshan Di, Zhiwei Wang, Hao Xu, Huiyu Zhao, Changshan Zhao, Peipei Qi

“…Various PRA samples were extracted using 8 mL 0.5% acetic acid-acetonitrile solution and purified by a dispersive solid-phase extraction method with 30 mg nano-MgO, 40 mg primary secondary amine (PSA), and 40 mg octadecylsilane (C18) as the cleanup adsorbents, followed by liquid chromatography-tandem mass spectrometry (LC-MS/MS). 70.7% of pesticides showed a weak matrix effect after the purification process, indicating that this method can give the precise quantitative analysis of trace pesticides residue. …”
Get full text

Mechanism of Mongolian Medicine Batri-7 on Salmonella Enteritis by Yang D, Chen S, Borijihan H, Aoqier A, Sarula S, Siqin S, Manda M, Temuqile T, Baigude H

“…This study explores BT-7’s antibacterial compounds and therapeutic mechanism in a Salmonella enteritis mouse model.Methods: The active components of BT-7 were detected by liquid chromatography-tandem mass spectrometry assay and identified by UPLC/Q-TOF-MS. …”
Get full text

Phytochemical and Biological Investigations of Crude Extracts of <i>Astragalus pisidicus</i> by Esra Aydemir, Elif Odabaş Köse, Serap Özkaya Gül, Alaaddin Korkut, A. Cansu Kilit, Mehmet Engin Celep, Mustafa Yavuz, R. Süleyman Göktürk, Cengiz Sarikurkcu

“…<b>Methods</b>: The water and methanolic fractions of four parts (stems, flowers, leaves, root) as well as the whole plant were quantified and identified by Liquid Chromatography Electrospray Ionization Tandem Mass Spectrometry (LC–ESI–MS/MS) analysis. …”
Get full text

The use of a benign fast-growing cyanobacterial species to control microcystin synthesis from Microcystis aeruginosa by Hakyung Lee, Vincent Xu, Jinjin Diao, Runyu Zhao, Moshan Chen, Tae Seok Moon, Haijun Liu, Kimberly M. Parker, Young-Shin Jun, Yinjie J. Tang

“…This study investigated the combined effects of nutrients and competition among cyanobacterial subpopulations on the synthesis of microcystin-LR.MethodsUnder varying nitrogen and phosphorus concentrations, cyanobacterial coculture, and the presence of algicidal DCMU, the growth was monitored by optical density analysis or microscopic counting, and the microcystin production was analyzed using high-performance liquid chromatography-UV. Furthermore, growth and toxin production were predicted using a kinetic model.Results and discussionFirst, coculture with the fast-growing cyanobacterium Synechococcus elongatus UTEX 2973 (S. elongatus) reduced M. aeruginosa biomass and microcystin production at 30°C. …”
Get full text

Screening of Anti-Inflammatory Components of Qin Jin Hua Tan Tang by a Multivariate Statistical Analysis Approach for Spectrum-Effect Relationships by Feipeng Duan, Yisheng Li, Meizhen Zhao, Tianyong Hu, Xinquan Pan, Yue Feng, Fang Ma, Shuqi Qiu, Yiqing Zheng

“…Phytochemical fingerprints were generated using ultrahigh-performance liquid chromatography. In total, 24 peaks were observed in ten batches of QJHTT extracts. …”
Get full text

Simultaneous Determination of Multiple Acid-Suppressing Drugs by UPLC-MS/MS Method and Application for Pharmacokinetics Study by Li X, Liu S, Yu M, Xi W, Wu X, Liu D, Liu A, Wang H

“…Precisely quantifying their plasma levels is crucial for clinical pharmacokinetic assessments and therapeutic drug monitoring.Aim: This study aimed to establish a generic and efficient ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) assay for the determination of five PPIs (esomeprazole, rabeprazole, ilaprazole, lansoprazole, and pantoprazole) and the P-CAB (vonoprazan) in human plasma.Methods: The six analytes were extracted from human plasma via protein precipitation and a single dilution step. …”
Get full text

Microbial community succession characteristics in an anaerobic baffled reactor during phenol gradient acclimation by Yuan LI, Chunmei YU, Daqiang CANG

“…Phenol degradation intermediates were performed using gas chromatography/mass spectrometry (GC–MS), with their quantities measured by high-performance liquid chromatography. The results showed a decrease in hydrogen partial pressure from 5 to 20 Pa in the ABR from Chamber 1 to Chamber 4. …”
Get full text

Rapid Determination of Pemetrexed Concentration and Distribution in Human Breast Cancer Cells (McF-7) Based on UHPLC-MS/MS by Mengwei Zhang, Zhipeng Wang, Qiqiang Zhang, Qing Ye, Fengjing Xu, Lili Cui, Yanping Liu, Shouhong Gao, Wansheng Chen, Yan Liu

“…An ultra high-performance liquid chromatography tandem mass spectrometry (UHPLC-MS/MS) method was developed for rapid quantification of pemetrexed concentration in human breast cancer cells (MCF-7). …”
Get full text

Gender-Specific Independent and Combined Effects of the Cortisol-to-Cortisone Ratio and 11-Deoxycortisol on Prediabetes and Type 2 Diabetes Mellitus: From the Henan Rural Cohort St... by Xue Liu, Jingjing Jiang, Xiaotian Liu, Zhicheng Luo, Yan Wang, Xiaokang Dong, Dandan Wei, Wenqian Huo, Songcheng Yu, Linlin Li, Shuna Jin, Chongjian Wang, Zhenxing Mao

“…A case-control study was performed including 2676 participants from the Henan Rural Cohort Study. Liquid chromatography-tandem mass spectrometry was used to assess serum cortisol, cortisone, and 11-deoxycortisol. …”
Get full text

Composition analysis of acid hydrolysates from Cucurbita moschata Duch. polysaccharides and their effect on oxidative stress resistance of Caenorhabditis elegans by Wen Jiang, Yakun Zhang, Jiangying Zeng, Jing Yao, Aoxue Lu, Zhiyu Fang, Ge Wang, Weimin Wang, Yongjun Zhang

“…The molecular weight of PPe-S-2 was 0.73 kDa detected by high performance liquid chromatography.These studies demonstrated that PPe-S-2 obtained by the acid hydrolysis of PPe had a prominent protective effect to the damage induced by the intracellular free radical generating agents.…”
Get full text

Revisiting the Metabolism of Donepezil in Rats Using Non-Targeted Metabolomics and Molecular Networking by Eun-Ji Park, Eui-Hyeon Kim, Ki-Young Kim, Ji-Hyeon Jeon, Im-Sook Song, So-Young Park, Kwang-Hyeon Liu

“…Therefore, this study aims to investigate the in vivo metabolism of donepezil using liquid chromatography–high-resolution mass spectrometry (LC-HRMS) based on a molecular networking (MN) approach integrated with a non-targeted metabolomics approach. …”
Get full text

Serum metabolic profiles in quails: Effects of age, breed, and sex by Qin He, Hanle Shang, Yizhong Huang, Lizhi Li, Zhuomin Wu, Huihui Ran, Jiguo Xu, Xinwei Xiong

“…In this study, liquid chromatography with tandem mass spectroscopy (LC-MS/MS)-based metabolomics was used to examine the effects of age, breed, and sex on the serum metabolic profile of quails. …”
Get full text

Increased Duodenal Iron Absorption through Upregulation of Ferroportin 1 due to the Decrement in Serum Hepcidin in Patients with Chronic Hepatitis C by Masanori Sato, Koji Miyanishi, Shingo Tanaka, Akira Sakurada, Hiroki Sakamoto, Yutaka Kawano, Kohichi Takada, Masayoshi Kobune, Junji Kato

“…Serum level of hepcidin-25 was measured by liquid chromatography-tandem mass spectrometry. Ferroportin 1 (FPN) mRNA was measured by RT-PCR and FPN protein was analyzed by western blot. …”
Get full text

Oleanolic Acid Cubic Liquid Crystal Nanoparticle-Based Thermosensitive Gel Attenuates Depression Symptoms in Chronic Unpredictable Mild Stress Rats by Shi Z, Wang Q, Li Q, Jia F, Xu W

“…The pharmacokinetics of OANG was studied in rats, and OA content was determined using liquid chromatography-mass spectrometry (LC-MS). The pharmacological effects of OANG on depression were evaluated in chronic unpredictable mild stress (CUMS) model rats.Results: The phase transition temperature of the gel was 34°C, and the release of OA from OANG was slow according to the Higuchi kinetic equation. …”
Get full text

Safety and Efficacy of Incorporating Actellic^® 300 CS into Soil Wall Plaster for Control of Malaria Vectors in Rural Northeastern Uganda by Tonny Jimmy Owalla, Emmanuel Okurut, Kenneth Ssaka, Gonsaga Apungia, Barbara Cemeri, Andrew Akileng, Basil Ojakol, Mark J. I. Paine, Hanafy M. Ismail, Thomas G. Egwang

“…The Actellic^® 300 CS level in house dust was analyzed using reversed-phase high-performance liquid chromatography (RP-HPLC). Entomological indices were compared between the three study arms at 1.5, 3 and 6 months post-intervention. …”
Get full text

Biocontrol of gray spot disease on Polygonatum cyrtonema Hua by Bacillus velezensis GX1 by L. Sun, G.L. Deng, H.L. Wu, Q. He, S.H. Hu, J.Y. Li, X.Y. Li, S. Meng, A.N. He, Y.Q. Tian, X. Chen, S.H. Li

“…An extract of lipopeptides (LPs) prepared at 60 μg/ml strongly inhibited mycelial growth and spore germination and caused morphological deformation of the mycelia. Liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis revealed that strain GX1 produced significantly higher levels of surfactin A, surfactin B and plipastatin, relative to strain GX8, an ineffective strain. …”
Get full text

Anti-inflammatory effects of Andrographis paniculata (Fah Talai Jone) via TNFα-JNK pathway and bioactive compound identification by Praphat Manuelo Ruengthanoo, Areeya Changthong, Pranee Sriraj, Jatuporn Prathumtet, Nutchapon Laikaew, Ratchadawan Aukkanimart

“…Methods: Ethanol (APE) and aqueous (APA) extracts of A. paniculata were prepared and analyzed for total phenolic and flavonoid content, antioxidant activity, and bioactive compound identification using high-performance liquid chromatography (HPLC). Cytotoxicity was evaluated using the sulforhodamine B assay, and the anti-inflammatory effects were assessed through cellular assays measuring reactive oxygen species (ROS) production and JNK pathway modulation. …”
Get full text