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Li M, Zhao Z, Zhang Y, Guo X, Zhang Y, Wang J, Liu Y, Yang L, Mou W, Zhang X, Gao H. Chemometrics combined with comprehensive two-dimensional gas chromatography-mass spectrometry for the identification of Baijiu vintage. Food Chem 2024; 444:138690. [PMID: 38354654 DOI: 10.1016/j.foodchem.2024.138690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 02/03/2024] [Accepted: 02/05/2024] [Indexed: 02/16/2024]
Abstract
The identification of baijiu vintage is crucial for quality assessment and economic value determination. However, its complex composition and multifaceted influences pose significant technical challenges, necessitating research into its aging mechanisms and the development of related identification methods. This study utilized Chemometrics in conjunction with GC × GC-TOFMS for Baijiu Vintage identification. Data compression achieved a reduction of over 1000-fold without compromising key information, enabling analysis on many samples and get their changing regular in a big matrix by MCR. Subsequently, MCR-ALS facilitated the extraction of physical and chemical meaningful information related to baijiu vintage. Key MCR principal components suitable for qualitative and quantitative assessments were selected using CARS-PLS. The regression model demonstrated errors of less than one year. Furthermore, a PLS-DA model provided 30 MCR principal components as potential markers. The research results provide technical support for baijiu vintage identification and lay the groundwork for studying the changing patterns of flavor compounds in baijiu.
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Affiliation(s)
- Miao Li
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Zhengyu Zhao
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Yusong Zhang
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Xinguang Guo
- China National Research Institute of Food & Fermentation Industries Co., Ltd, Beijing 100016, China
| | - Yu Zhang
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Jian Wang
- China National Research Institute of Food & Fermentation Industries Co., Ltd, Beijing 100016, China
| | - Yangqingxue Liu
- China National Research Institute of Food & Fermentation Industries Co., Ltd, Beijing 100016, China
| | - Lihua Yang
- Guangzhou Hexin Instrument Co. Ltd., Guangzhou 510535, China
| | - Wenlong Mou
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Xin Zhang
- Department of Chemistry, Capital Normal University, Beijing 100048, China.
| | - Hongbo Gao
- China National Research Institute of Food & Fermentation Industries Co., Ltd, Beijing 100016, China.
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Hu F, Huang J, Bing T, Mou W, Li D, Zhang H, Chen Y, Jin Q, Yu Y, Yang Z. Stimulus-Responsive Copper Complex Nanoparticles Induce Cuproptosis for Augmented Cancer Immunotherapy. Adv Sci (Weinh) 2024; 11:e2309388. [PMID: 38269649 PMCID: PMC10987162 DOI: 10.1002/advs.202309388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/06/2024] [Indexed: 01/26/2024]
Abstract
Cuproptosis, an emerging form of programmed cell death, has received tremendous attention in cancer therapy. However, the efficacy of cuproptosis remains limited by the poor delivery efficiency of copper ion carriers. Herein, copper complex nanoparticles (denoted as Cu(I) NP) are developed that can efficiently deliver copper complex into cancer cells to induce cuproptosis. Cu(I) NP demonstrate stimulus-responsive release of copper complexes, which results in mitochondrial dysfunction and promotes the aggregation of lipoylated dihydrolipoamide S-acetyltransferase (DLAT), leading to cuproptosis. Notably, Cu(I) NP not only induce cuproptosis, but also elicit robust immune responses to suppress tumor growth. Overall, this study provides a promising strategy for cuproptosis-based cancer therapy.
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Affiliation(s)
- Fuzhen Hu
- Department of ChemistryCapital Normal UniversityBeijing100048China
| | - Jia Huang
- Department of Hepatobiliary SurgeryChina−Japan Friendship HospitalBeijing100029China
| | - Tiejun Bing
- Immunology and Oncology CenterICE BioscienceBeijing100176China
| | - Wenlong Mou
- Department of ChemistryCapital Normal UniversityBeijing100048China
| | - Duo Li
- Department of Hepatobiliary SurgeryChina−Japan Friendship HospitalBeijing100029China
| | - Hanchen Zhang
- Beijing National Laboratory for Molecular SciencesLaboratory of Polymer Physics and Chemistry Institute of ChemistryChinese Academy of SciencesBeijing100190China
| | - Yang Chen
- Faculty of Hepato‐Biliary‐Pancreatic SurgeryThe First Medical Center of Chinese People's Liberation Army (PLA) General HospitalBeijing100039China
| | - Qionghua Jin
- Department of ChemistryCapital Normal UniversityBeijing100048China
- State Key Laboratory of Elemento‐Organic ChemistryNankai UniversityTianjin300071China
| | - Yingjie Yu
- State Key Laboratory of Organic‐Inorganic Composites, Beijing Laboratory of Biomedical MaterialsBeijing University of Chemical TechnologyBeijing100029China
| | - Zhiying Yang
- Department of Hepatobiliary SurgeryChina−Japan Friendship HospitalBeijing100029China
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Mou W, Flammarion N, Wainwright MJ, Bartlett PL. Improved bounds for discretization of Langevin diffusions: Near-optimal rates without convexity. BERNOULLI 2022. [DOI: 10.3150/21-bej1343] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Wenlong Mou
- Department of EECS, UC Berkeley, Cory Hall, Berkeley, CA, 94720, USA
| | - Nicolas Flammarion
- School of Computer and Communication Sciences, EPFL, INJ 336, Station 14, CH-1015 Lausanne, Switzerland
| | | | - Peter L. Bartlett
- Department of EECS, UC Berkeley, Cory Hall, Berkeley, CA, 94720, USA
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Wang S, Mou W, Xu Z, Gui J, Ma L. Autosomal recessive hyper-IgE syndrome in two brothers of a Chinese family with a novel mutation in DOCK8 gene. J Eur Acad Dermatol Venereol 2018; 32:e302-e304. [PMID: 29419892 DOI: 10.1111/jdv.14847] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- S Wang
- Department of Dermatology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - W Mou
- Laboratory of Immunology, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China.,Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Z Xu
- Department of Dermatology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - J Gui
- Laboratory of Immunology, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China.,Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - L Ma
- Department of Dermatology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
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Sun Q, Jia X, Gao J, Mou W, Tong H, Wen X, Tian Y. Association of serum homocysteine levels with the severity and calcification of coronary atherosclerotic plaques detected by coronary CT angiography. INT ANGIOL 2014; 33:316-323. [PMID: 25056163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
AIM In this study, we aim to evaluate the association of risk factors including homocysteine (Hcy) with the severity and burden of coronary atherosclerotic plaques detected by computed tomography angiography (CTA). METHODS Six hundred fifty-nine subjects who underwent CTA for the assessment of coronary artery disease (CAD) were studied. All the subjects enrolled had no clinical cardiovascular disease symptoms. Logistic regression showed apart from age, hypertension, smoking, triglyceride, low-density lipoprotein (LDL) cholesterol, and total bilirubin, Hcy was an independently risk factor of the severity of coronary disease. And Hcy was also found an independent predictor for the presence of calcified plaque. When the participants were divided into 4 groups according to serum Hcy quartiles (Q1-Q4 groups), both the percentage of patients with >50% stenosis and the percentage of patients with calcified plaque were higher in Q4 compared to other groups. The OR of Hcy (>15 µmol/L) for >50% stenosis was 2.212 (95% CI=1.119 to 4.375, P=0.022) and the OR for Hcy (>15 µmol/L) for calcification was 1.668 (95% CI=1.030 to 2.699, P=0.037) respectively. CONCLUSION Our study shows Hcy is independently associated with both the severity and calcified plaque detected by CTA. Hcy may provide additional information about CAD in the subjects without clinical symptoms.
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Affiliation(s)
- Q Sun
- Department of Clinical Biochemistry, Chinese PLA General Hospital, Beijing, China -
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Li X, Mou W, Carlson L. Describing locations from memory: Effects of spatial reference direction on reference object selection. J Vis 2010. [DOI: 10.1167/10.7.1239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Mou W, Li X, McNamara T. Intrinsic orientation and learning viewpoint in shape recognition. J Vis 2010. [DOI: 10.1167/8.6.731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Mou W, Hayward WG, Zhao M, Zhou G, Owen CB. Spatial updating during locomotion does not eliminate viewpoint-dependent visual object processing. J Vis 2010. [DOI: 10.1167/6.6.316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Mou W, Zhang K. A compatible chord code for inputting elements of Chinese characters. Appl Ergon 2001; 32:293-297. [PMID: 11394470 DOI: 10.1016/s0003-6870(00)00060-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A compatible chord code for inputting elements of Chinese characters (ECC) to computer was proposed. It capitalized on the graphic compatibility between ECC and chord combination of keys (CCK) on a single-handed chord keyboard with five keys. Experimental results showed that the proposed compatible chord code was better than a code that randomly mapped ECC onto CCK with respect to learning time and response time. Explicit indication of the graphic compatibility between ECC and CCK did not enhance memorizing the compatible code.
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Affiliation(s)
- W Mou
- Institute of Psychology, Chinese Academy of Sciences, People's Republic of China.
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Slusser J, Gibson J, Bigelow D, Kolinski D, Mou W, Koenig G, Beaubien A. Comparison of column ozone retrievals by use of an UV multifilter rotating shadow-band radiometer with those from Brewer and Dobson spectrophotometers. Appl Opt 1999; 38:1543-1551. [PMID: 18305778 DOI: 10.1364/ao.38.001543] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The U.S. Department of Agriculture UV-B Monitoring Program measures ultraviolet light at seven wavelengths from 300 to 368 nm with an ultraviolet multifilter rotating shadow-band radiometer (UV-MFRSR) at 25 sites across the United States, including Mauna Loa, Hawaii. Column ozone has been retrieved under all-sky conditions near Boulder, Colorado (40.177 degrees N, 105.276 degrees W), from global irradiances of the UV-MFRSR 332- and 305-nm channels (2 nm FWHM) using lookup tables generated from a multiple-scattering radiative transfer code suitable for solar zenith angles (SZA's) up to 90 degrees. The most significant sources of error for UV-MFRSR column ozone retrievals at SZA's less than 75 degrees are the spectral characterizations of the filters and the absolute calibration uncertainty, which together yield an estimated uncertainty in ozone retrievals of +/-4.0%. Using model sensitivity studies, we determined that the retrieved column ozone is relatively insensitive (<+/-2%) to typical variations in aerosol optical depth, cloud cover, surface pressure, stratospheric temperature, and surface albedo. For 5 months in 1996-1997 the mean ratio of column ozone retrieved by the UV-MFRSR divided by that retrieved by the collocated Brewer was 1.024 and for the UV-MFRSR divided by those from a nearby Dobson was 1.025. The accuracy of the retrieval becomes unreliable at large SZA's of more than 75 degrees as the detection limit of the 305-nm channel is reached and because of overall angular response errors. The UV-MFRSR advantages of relatively low cost, unattended operation, automated calibration stability checks using Langley plots, and minimal maintenance make it a unique instrument for column ozone measurement.
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Affiliation(s)
- J Slusser
- UV-B Radiation Monitoring Program, Natural Resource Ecology Laboratory, Colorado State University, Fort Collins, Colorado 80523, USA.
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Yuan S, Yang W, Mou W, Zhang X, Li Z, Yu X, Gu J, Guo Y, Gan Z, Liu H, Guo J. A new isotope of protactinium:239Pa. ACTA ACUST UNITED AC 1995. [DOI: 10.1007/bf01289491] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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