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Yang S, Jin Y, Li F, Shi J, Liang J, Mei X. Pickering Emulsion Stabilized by Hordein-Whey Protein Isolate Complex: Delivery System of Quercetin. Foods 2024; 13:665. [PMID: 38472777 DOI: 10.3390/foods13050665] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 02/14/2024] [Accepted: 02/16/2024] [Indexed: 03/14/2024] Open
Abstract
As a lipophilic flavonol, quercetin has low bioavailability, which limits its application in foods. This work aimed to prepare a hordein-based system to deliver quercetin. We constructed hordein-whey isolate protein fibril (WPIF) complexes (H-Ws) by anti-solvent precipitation method at pH 2.5. The TEM results of the complexes showed that spherical-like hordein particles were wrapped in WPIF clusters to form an interconnected network structure. FTIR spectra revealed that hydrogen bonds and hydrophobic interactions were the main driving forces for the complex formation. H-W1 (the mass ratio of hordein to WPIF was 1:1) with a three-phase contact angle of 70.2° was chosen to stabilize Pickering emulsions with oil volume fractions (φ) of 40-70%. CLSM images confirmed that the oil droplets were gradually embedded in the three-dimensional network structure of H-W1 with the increase in oil volume fraction. The emulsion with φ = 70% showed a tight gel structure. Furthermore, this emulsion exhibited high encapsulation efficiency (97.8%) and a loading capacity of 0.2%, demonstrating the potential to deliver hydrophobic bioactive substances. Compared with free quercetin, the bioaccessibility of the encapsulated quercetin (35%) was significantly improved. This study effectively promoted the application of hordein-based delivery systems in the food industry.
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Affiliation(s)
- Songqi Yang
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture and Rural Affairs of the People's Republic of China, Beijing 100083, China
| | - Yunan Jin
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture and Rural Affairs of the People's Republic of China, Beijing 100083, China
| | - Feifan Li
- College of Food Science and Engineering, Shandong Agriculture and Engineering University, Jinan 250100, China
| | - Jinfeng Shi
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture and Rural Affairs of the People's Republic of China, Beijing 100083, China
| | - Jiahui Liang
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture and Rural Affairs of the People's Republic of China, Beijing 100083, China
| | - Xiaohong Mei
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture and Rural Affairs of the People's Republic of China, Beijing 100083, China
- Center of Food Colloids and Delivery of Functionality, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
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Yang Z, Wang J, Qi Y, Tian X, Mei X, Zhang Z, Wang S. [Bioinformatics analysis of the RNA binding protein DDX39 of Toxoplasma gondii]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2023; 35:358-365. [PMID: 37926470 DOI: 10.16250/j.32.1374.2023002] [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] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
OBJECTIVE To analyze the RNA binding protein of Toxoplasma gondii (TgDDX39) using bioinformatics technology, and to evaluate the immunogenicity of TgDDX39, so as to provide insights into development of toxoplasmosis vaccines. METHODS The amino acid sequences of TgDDX39 were retrieved from the ToxoDB database, and the physicochemical properties, transmembrane structure domain, signal peptide sites, post-translational modification sites, coils, secondary and tertiary structures, hydrophobicity, and antigenic epitopes of the TgDDX39 protein were predicted using online bioinformatics tools, incluiding ProtParam, TMHMM 2.0, SignalP 5.0, NetPhos 3.1, COILS, SOPMA, Phyre2, ProtScale, ABCpred, SYFPEITHI and DNA-STAR. RESULTS TgDDX39 protein was predicted to be an unstable hydrophilic protein with the molecular formula of C2173H3458N598O661S18, which contained 434 amino acids and had an estimated molecular weight of 49.1 kDa and a theoretical isoelectric point of 5.55. The protein was predicted to have an extremely low possibility of signal peptides, without transmembrane regions, and contain 27 phosphorylation sites. The β turn and random coils accounted for 39.63% of the secondary structure of the TgDDX39 protein, and a coiled helix tended to produce in one site. In addition, the TgDDX39 protein contained multiple B and T cell antigenic epitopes. CONCLUSIONS Bioinformatics analyses predict that TgDDX39 protein has high immunogenicity and contains multiple antigenic epitopes. TgDDX39 protein is a potential candidate antigen for vaccine development.
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Affiliation(s)
- Z Yang
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
- Xinxiang Key Laboratory of Pathogenic Biology, Xinxiang, Henan 453003, China
| | - J Wang
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
- Xinxiang Key Laboratory of Pathogenic Biology, Xinxiang, Henan 453003, China
| | - Y Qi
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
| | - X Tian
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
- Xinxiang Key Laboratory of Pathogenic Biology, Xinxiang, Henan 453003, China
| | - X Mei
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
- Xinxiang Key Laboratory of Pathogenic Biology, Xinxiang, Henan 453003, China
| | - Z Zhang
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
- Xinxiang Key Laboratory of Pathogenic Biology, Xinxiang, Henan 453003, China
| | - S Wang
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
- Xinxiang Key Laboratory of Pathogenic Biology, Xinxiang, Henan 453003, China
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Yang Z, Meng J, Mei X, Xiao Q, Mo M, Zhang L, Shi W, Chen X, Ma J, Zhang Z, Shao Z, Guo X, Yu X. Stereotactic Radiotherapy or Whole Brain Radiotherapy Combined with Pyrotinib and Capecitabine in HER2-Positive Advanced Breast Cancer Patients with Brain Metastases (BROPTIMA): A Prospective, Phase Ib/II Single-Arm Clinical Study. Int J Radiat Oncol Biol Phys 2023; 117:S173-S174. [PMID: 37784431 DOI: 10.1016/j.ijrobp.2023.06.641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Approximately half of patients with advanced HER2-positive breast cancer (BC) will develop brain metastases (BM) over time. Local therapy including stereotactic radiotherapy (SRT) and whole brain radiotherapy (WBRT) is the main initial treatment in malignant tumor patients with BM. However, more than 50% patients after radiotherapy in one year suffered intracranial recurrence. Pyrotinib, a small molecule, irreversible, pan-ErbB receptor tyrosine kinase inhibitor (TKI), has a high potency for controlling BM and reducing the occurrence of brain metastases in advanced HER2-positive BC patients. We hypothesized that SRT or WBRT combined with pyrotinib and capecitabine could decrease intracranial progression in HER2 positive BC with newly diagnosed BM. MATERIALS/METHODS In this prospective single-arm phase Ib/II trial (NCT04582968), eligible patients were assigned to either fractionated stereotactic radiotherapy (FSRT) or whole-brain radiation therapy (WBRT), combined with pyrotinib and capecitabine. The primary endpoint was one-year CNS progression-free survival (PFS) rate. Secondary endpoints included intracranial objective response rate (IC-ORR) according to RANO-BM criteria, progression-free survival (PFS), overall survival (OS) and evaluation of safety and neurocognitive function. RESULTS From January 2020 to August 2022, 40 patients were enrolled. Twenty-nine patients were treated with FSRT in 8 Gy per fraction with 3 to 5 fractions and 11 were treated with WBRT in 3 Gy per fraction with 10 fractions, and then received chemotherapy in a time frame starting from 0 to 7 days after radiotherapy. At a median follow-up of 17.3 months, 1-year CNS-PFS rate was 74.9% (95% CI 61.9-90.7%) and median CNS-PFS was 18 months (95% CI, 15.5 to NA months). One-year PFS rate was 66.9% (53.1-84.2%) and median PFS time was 17.6 months (95% CI 12.8-34.1 months). The best intracranial response rate (IC-ORR: complete response and partial response) was 92.5% (37/40). The most common grade 3 or worse toxicity was diarrhea (7.5%) and asymptomatic radiation necrosis was detected in 4 of 67(6.0%) lesions treated with FSRT. No differences of neurocognitive function evaluated by MMSE (Mini-Mental State Exam) were observed between different groups at any time point. CONCLUSION Radiotherapy combined with pyrotinib and capecitabine resulted in a promising efficacy that crossed the pre-specified boundary in patients with HER2-positive advanced breast cancer with brain metastases. This is the first prospective study showing the efficacy and safety of CNS radiotherapy concurrent with pyrotinib and capecitabine in patients with BM from HER2-positive breast cancer. Further investigation in a randomized controlled study is warranted.
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Affiliation(s)
- Z Yang
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - J Meng
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - X Mei
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Q Xiao
- Department of Radiology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - M Mo
- Department of Statistics, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - L Zhang
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - W Shi
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - X Chen
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - J Ma
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Z Zhang
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Z Shao
- Department of Breast Surgery, Precision Cancer Medicine Center, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - X Guo
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - X Yu
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
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Li X, Jafari SM, Zhou F, Hong H, Jia X, Mei X, Hou G, Yuan Y, Liu B, Chen S, Gong Y, Yan H, Chang R, Zhang J, Ren F, Li Y. The intracellular fate and transport mechanism of shape, size and rigidity varied nanocarriers for understanding their oral delivery efficiency. Biomaterials 2023; 294:121995. [PMID: 36641813 DOI: 10.1016/j.biomaterials.2023.121995] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 01/03/2023] [Accepted: 01/05/2023] [Indexed: 01/08/2023]
Abstract
Nanocarriers have become an effective strategy to overcome epithelial absorption barriers. During the absorption process, the endocytosis mechanisms, cell internalization pathways, and transport efficiency of nanocarriers are greatly impacted by their physical properties. To understand the relationship between physical properties of nanocarriers and their abilities overcoming multiple absorption barriers, nanocarriers with variable physical properties were prepared via self-assembly of hydrolyzed α-lactalbumin peptide fragments. The impacts of size, shape, and rigidity of nanocarriers on epithelial cells endocytosis mechanisms, internalization pathways, transport efficiency, and bioavailability were studied systematically. The results showed that nanospheres were mainly internalized via clathrin-mediated endocytosis, which was then locked in lysosomes and degraded enzymatically in cytoplasm. While macropinocytosis was the primary pathway of nanotubes and transported to the endoplasmic reticulum and Golgi apparatus, resulting in a high drug concentration and sustained release in cytoplasm. Besides, nanotubes can overcome the multi-drug resistance by inhibiting the P-glycoprotein efflux. Furthermore, nanotubes can open intercellular tight-junctions instantaneously and reversibly, which promotes transport into blood circulation. The aqueous solubility of hydrophobic bioactive mangiferin (Mgf) was improved by nanocarriers. Most importantly, the bioavailability of Mgf was the highest for cross-linked short nanotube (CSNT) which outperformed free Mgf and other formulations by in vivo pharmacokinetic studies. Finally, Mgf-loaded CSNT showed an excellent therapeutic efficiency in vivo for the intervention of streptozotocin-induced diabetes. These results indicate that cross-linked α-lactalbumin nanotubes could be an effective nanocarrier delivery system for improving the epithelium cellular absorption and bioavailability of hydrophobic bioactive compounds.
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Affiliation(s)
- Xin Li
- Research Center of Food Colloids and Delivery of Functionality, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Seid Mahdi Jafari
- Department of Food Materials and Process Design Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Feibai Zhou
- School of Food Science and Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Hui Hong
- Research Center of Food Colloids and Delivery of Functionality, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Xin Jia
- Research Center of Food Colloids and Delivery of Functionality, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Xiaohong Mei
- Research Center of Food Colloids and Delivery of Functionality, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Guohua Hou
- Research Center of Food Colloids and Delivery of Functionality, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Yu Yuan
- Research Center of Food Colloids and Delivery of Functionality, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Bin Liu
- Research Center of Food Colloids and Delivery of Functionality, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Shanan Chen
- Research Center of Food Colloids and Delivery of Functionality, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Yifu Gong
- Research Center of Food Colloids and Delivery of Functionality, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Huiling Yan
- Research Center of Food Colloids and Delivery of Functionality, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Ruxin Chang
- Research Center of Food Colloids and Delivery of Functionality, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Jiayin Zhang
- Research Center of Food Colloids and Delivery of Functionality, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Fazheng Ren
- Research Center of Food Colloids and Delivery of Functionality, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Yuan Li
- Research Center of Food Colloids and Delivery of Functionality, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China.
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Shi T, Feng Y, Wang C, Liu H, Li T, Liu WD, Zhou HB, Aini A, Mei X, Guo XW, Jiang MS, Gao F. [Clinical and endoscopic characteristics of adult celiac disease]. Zhonghua Nei Ke Za Zhi 2023; 62:35-42. [PMID: 36631035 DOI: 10.3760/cma.j.cn112138-20220220-00130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Objective: The study aimed to analyze the clinical and endoscopic characteristics of adult celiac disease (CD) to provide a scientific basis for more effective CD diagnosis and treatment. Methods: In this cross-sectional study, the clinical and endoscopic data of 96 adult CD patients treated in the Department of Gastroenterology of the People's Hospital of Xinjiang Uygur Autonomous Region from March 2016 to December 2021 were retrospectively collected and analyzed. Results: A total of 96 CD patients were diagnosed, including 33 men and 63 women. The average age was 47±14 years (range, 18-81 years). The disease occurred mainly in the age group of 31-60 years. The median course of the disease was 2.0 (0.2-40.0) years. There were 41 (42.7%) classical and 55 (57.3%) non-classical CD patients. All patients with classical CD showed chronic diarrhea, often accompanied by abdominal pain (46.3%, 19/41), abdominal distension (17.1%, 7/41), anemia (65.9%, 27/41), and chronic fatigue (48.8%, 20/41). The main manifestations of non-classical CD were chronic abdominal pain (58.2%, 32/55), abdominal distension (32.7%, 18/55), anemia (40.0%, 22/55), and osteopenia/osteoporosis (38.2%, 21/55). Compared with non-classical CD, anemia developed more frequently in classical CD, and the difference was statistically significant (P = 0.012). The incidence of complications in CD patients was 36.5% (35/96), and the main complications were thyroid disease (19.8%, 19/96), connective tissue disease (6.2%, 6/96), and kidney disease (6.2%, 6/96). There was no significant difference between classical and non-classical CD (P>0.05). The frequency of endoscopic manifestations in CD patients was 84.4% (81/96). Duodenal bulb endoscopy showed nodular changes (72.9%, 70/96), grooved changes (10.4%, 10/96), and focal villous atrophy (9.4%, 9/96). The main manifestations of descending endoscopy were the decrease, flattening, or disappearance of duodenal folds (43.8%, 42/96), scallop-like changes (38.5%, 37/96), and nodular changes (34.4%, 33/96). Conclusions: Adult CD patients are mostly female. CD occurred mainly in the age group of 31-60 years. The clinical manifestations were mainly those of non-classical CD. Some patients often had other autoimmune diseases. Patients with characteristic endoscopic manifestations should be warned about the possibility of developing CD. Clinicians should strengthen the understanding of CD and reduce the related rates of missed diagnosis.
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Affiliation(s)
- T Shi
- Department of Gastroenterology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, China Xinjiang Digestive System Disease Clinical Medicine Research Center, Urumqi 830011, China Xinjiang Medical University, Urumqi 830011, China
| | - Y Feng
- Department of Gastroenterology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, China Xinjiang Digestive System Disease Clinical Medicine Research Center, Urumqi 830011, China
| | - C Wang
- Department of Pathology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, China
| | - H Liu
- Department of Gastroenterology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, China Xinjiang Digestive System Disease Clinical Medicine Research Center, Urumqi 830011, China
| | - T Li
- Department of Gastroenterology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, China Xinjiang Digestive System Disease Clinical Medicine Research Center, Urumqi 830011, China
| | - W D Liu
- Department of Gastroenterology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, China Xinjiang Digestive System Disease Clinical Medicine Research Center, Urumqi 830011, China
| | - H B Zhou
- Department of Gastroenterology, People's Hospital of Kizilsu Kirgiz Autonomous Prefecture, Kizilsu Kirgiz Autonomous Prefecture 845350, China
| | - Abudureyimu Aini
- Department of Gastroenterology, Kashgar Second People's Hospital, Kashgar 844099, China
| | - X Mei
- Department of Gastroenterology, Altay Regional People's Hospital, Altay 836500, China
| | - X W Guo
- Department of Gastroenterology, Aksu People's Hospital, Aksu 843099, China
| | - M S Jiang
- Department of Gastroenterology, Turpan People's Hospital, Turpan 838099, China
| | - F Gao
- Department of Gastroenterology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, China Xinjiang Digestive System Disease Clinical Medicine Research Center, Urumqi 830011, China
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Han B, Jiao S, Chen J, Wang Z, Zhao Y, Zhang G, Chen G, Zhou M, Zhou J, Du Y, Wu L, Xu Z, Mei X, Zhang W, He J, Cui J, Zhang Z, Luo H, Liu W, Sun Y. 59MO Final analysis of AK105-302: A randomized, double-blind, placebo-controlled, phase III trial of penpulimab plus carboplatin and paclitaxel as first-line treatment for advanced squamous NSCLC. Immuno-Oncology and Technology 2022. [DOI: 10.1016/j.iotech.2022.100164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Zhao T, Huang K, Luo Y, Li Y, Cheng N, Mei X. Preparation and characterization of high internal phase Pickering emulsions stabilized by hordein-chitosan composite nanoparticles. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130766] [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: 12/14/2022]
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Cheng S, Li F, Mei X. Structure, mechanical and physical properties of hordein/chitosan composite films. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113596] [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: 11/29/2022]
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Li F, Huang K, Luo Y, Mei X. Isolation of B-constituent through selective complex coacervation of hordein with ι-carrageenan. Int J Biol Macromol 2022; 212:508-516. [PMID: 35623460 DOI: 10.1016/j.ijbiomac.2022.05.147] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 05/02/2022] [Accepted: 05/20/2022] [Indexed: 11/30/2022]
Abstract
The complex behavior of the crude hordein with ι-carrageenan (Car) as a function of pH (11.0-3.0) and Hordein/Car mass ratios (20:1-1:1, w/w) was studied through zeta potential analysis, turbidimetric titration and SDS-PAGE. By preferential binding with Car, B-hordein was isolated from the crude hordein at pHmax (6.2) and Hordein/Car mass ratio of 15:1, which was further confirmed by LC-MS/MS analysis. The results of zeta potential and size of separated B-hordein and C-hordein suggested that the difference in charge density was the main driving force of selective complexation between hordein and Car. Simultaneously, Fourier transform infrared spectroscopy also confirmed the existence of strong electrostatic interaction between B-hordein and Car. Additionally, the more ordered secondary structure of B-hordein at pHmax might be beneficial to its preferential binding with Car. This study further promotes the application of B-hordein in food industry.
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Affiliation(s)
- Feifan Li
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing, 100083, China; Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture and Rural Affairs of P.R., Beijing 100083, China
| | - Kunlun Huang
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing, 100083, China; Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture and Rural Affairs of P.R., Beijing 100083, China
| | - Yunbo Luo
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing, 100083, China; Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture and Rural Affairs of P.R., Beijing 100083, China
| | - Xiaohong Mei
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing, 100083, China; Center of Food Colloids and Delivery of Functionality, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
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Gao ZZ, Pan YJ, Ma J, Li HL, Mei X, Song YG. [Study on the difference of curative effect of conventional mercury displacement treatment on mercury in brain and kidney]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2022; 40:255-259. [PMID: 35545590 DOI: 10.3760/cma.j.cn121094-20210202-00073] [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] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To explore the expulsion effect of sodium dimercaptopropanesulfonate (DMPS) on mercury in different organs of mercury poisoning and the therapeutic effect of glutathione (GSH) combined with antioxidant therapy on mercury poisoning. Methods: In February 2019, 50 SPF male SD rats were randomly divided into 5 groups, 10 rats in each group: A (saline negative control group) , B (HgCL2 positive control group) , treatment group (C: intramuscular injection of DMPS 15 mg/kg treatment, D: intramuscular injection of DMPS30 mg/kg treatment, E: intramuscular injection of DMPS 15 mg/kg and intraperitoneal injection of GSH200 mg/kg treatment) . Rats in group B, C, D and E were subcutaneously injected with mercury chloride solution (1 mg/kg) to establish a rat model of subacute mercury poisoning kidney injury. Rats in group A were subcutaneously injected with normal saline. After the establishment of the model, rats in the treatment group were injected with DMPS and GSH. Rats in group A and group B were injected with normal saline. At 21 d (treatment 7 d) and 28 d (treatment 14 d) after exposure, urine and blood samples of 5 rats in each group were collected. Blood biochemistry, urine mercury, urine microalbumin and mercury content in renal cortex, cerebral cortex and cerebellum were detected. Results: After exposure to mercury, the contents of mercury in renal cortex, cerebrum and cerebellum of rats in group B, C, D and E increased, and urine microalbumin increased. Pathology showed renal tubular injury and renal interstitial inflammation. Compared with group B, urinary mercury and renal cortex mercury in group C, D and E decreased rapidly after DMPS treatment, and there was no significant decrease in mercury levels in cerebellum and cerebral cortex of rats, accompanied by transient increase in urinary albumin after DMPS treatment (P<0.05) ; the renal interstitial inflammation in group E was improved after GSH treatment. There was a positive correlation between urinary mercury and the contents of mercury in renal cortex, cerebral cortex and cerebellum (r=0.61, 0.47, 0.48, P<0.05) . Conclusion: DMPS mercury expulsion treatment can significantly reduce the level of metal mercury in the kidney, and there is no significant change in the level of metal mercury in the cortex and cerebellum.
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Affiliation(s)
- Z Z Gao
- Emergency medical research center of Beijing Chaoyang Hospital Affiliated to Capital Medical University; Beijing Key Laboratory of Cardiopulmonary Resuscitation, Beijing 100020, China
| | - Y J Pan
- Department of Occupational Disease and Poisoning Medicine, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing 100020, China
| | - J Ma
- Department of Occupational Disease and Poisoning Medicine, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing 100020, China
| | - H L Li
- Department of Occupational Disease and Poisoning Medicine, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing 100020, China
| | - X Mei
- Emergency medical research center of Beijing Chaoyang Hospital Affiliated to Capital Medical University; Beijing Key Laboratory of Cardiopulmonary Resuscitation, Beijing 100020, China
| | - Y G Song
- Department of Occupational Disease and Poisoning Medicine, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing 100020, China
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Yang Y, Wang Z, Fang J, Yu Q, Han B, Cang S, Chen G, Mei X, Yang Z, Stefaniak V, Lin Y, Wang S, Zhang W, Sun L, Zhang Y. 4MO Final overall survival (OS) data of sintilimab plus pemetrexed (SPP) and platinum as first-line (1L) treatment for locally advanced or metastatic nonsquamous NSCLC (AMnsqNSCLC) in the phase III ORIENT-11 study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.02.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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12
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Li F, Wang X, Wang H, Mei X. Preparation and characterization of phytosterol-loaded nanoparticles with sodium caseinate/dextran conjugates. Food Sci Biotechnol 2021; 30:531-539. [PMID: 33936844 DOI: 10.1007/s10068-021-00885-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 01/10/2021] [Accepted: 01/26/2021] [Indexed: 11/29/2022] Open
Abstract
Sodium caseinate (SC)/dextran conjugates were prepared via Maillard reaction under controlled dry-heating conditions. Moreover, the nanoparticles of phytosterols (PS) encapsulated by SC or SC/dextran were produced using the emulsion evaporation method. The encapsulation efficiency (78.81 ± 5.22%) of PS in SC/dextran nanoparticles was higher than that (73.5 ± 2.78%) in SC nanoparticles. Compared with the compact and dense structure of SC nanoparticles, SC/dextran nanoparticles existed as relatively loose aggregates. The result of differential scanning calorimetry demonstrated that the encapsulation of PS greatly decreased its crystallinity. The released rates of PS from SC and SC/dextran nanoparticles under acidic gastric conditions were 8.59% and 4.73%, respectively. After 7 h of intestinal digestion, the released rate (52.19%) of PS from SC/dextran nanoparticles was significantly higher than that from SC (32.67%) nanoparticles. Therefore, SC/dextran conjugates prepared by the Maillard reaction are more suitable to be used as wall material for the nano-encapsulation of PS.
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Affiliation(s)
- Feifan Li
- No. 17 Qinghua East Road, Haidian District, Beijing, 100083 China
| | - Xiaoli Wang
- No. 17 Qinghua East Road, Haidian District, Beijing, 100083 China
| | - Hongfu Wang
- No. 17 Qinghua East Road, Haidian District, Beijing, 100083 China
| | - Xiaohong Mei
- No. 17 Qinghua East Road, Haidian District, Beijing, 100083 China
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13
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Li F, Li X, Huang K, Luo Y, Mei X. Preparation and characterization of pickering emulsion stabilized by hordein-chitosan complex particles. J FOOD ENG 2021. [DOI: 10.1016/j.jfoodeng.2020.110275] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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14
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Xiaopei H, Kunfu D, Lianyuan T, Zhen L, Mei X, Haibo Y. Tumor invasion front morphology: a novel prognostic factor for intrahepatic cholangiocarcinoma. Eur Rev Med Pharmacol Sci 2020; 23:9821-9828. [PMID: 31799649 DOI: 10.26355/eurrev_201911_19545] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To explore the prognostic value of the morphology of tumor invasion front (TIF) in Intrahepatic Cholangiocarcinoma (ICC). PATIENTS AND METHODS Seventy-four ICC patients with complete clinicopathological data and follow-up information were enrolled in our study. The most typical morphology of TIF of each case will be classified as low-grade group or high-grade group after evaluation by two pathologists. The clinicopathological characteristics, disease-free survival (DFS), and overall survival (OS) were compared between the two groups. RESULTS A total of 26 (35.3%) patients were assigned to low-grade group, while 48 (64.7%) patients were assigned to high-grade group. High-grade group was associated with higher CA19-9 (p=0.032), poor differentiation (p=0.050), larger tumor diameter (p=0.016), advanced T staging (p=0.048), and higher incidence of lymph node (LN) metastasis (0.014). No significant associations were found in demographic and clinical characteristics between the two groups. On multivariable analysis, high-grade group was a significant independent predictor of worse DFS (HR=0.433, 95% CI=0.235-0.800, p=0.002) and OS (HR=0.363, 95% CI=0.187-0.704, p=0.003). CONCLUSIONS High-grade morphology of TIF was an independent prognostic factor of ICC.
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Affiliation(s)
- H Xiaopei
- Department of Hepatobiliary Surgery, People's Hospital of Zhengzhou University, Zhengzhou, China.
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15
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Zhang L, Song H, Guo Y, Fan B, Huang Y, Mao X, Liang K, Hu Z, Sun X, Fang Y, Mei X, Yin H, Li B, Wang Y, Liu X, Lu B. Benefit-risk assessment of dietary selenium and its associated metals intake in China (2017-2019): Is current selenium-rich agro-food safe enough? J Hazard Mater 2020; 398:123224. [PMID: 33027878 DOI: 10.1016/j.jhazmat.2020.123224] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 06/12/2020] [Accepted: 06/15/2020] [Indexed: 05/27/2023]
Abstract
Dietary consumption of selenium-rich agro-food is an effective way to avoid selenium deficiency diseases, however, over consumption of selenium-rich agro-food will result in potential risk of selenosis and problems with associated metals. In this study, we measured the concentrations of selenium and its associated metals in 2756 common and 4894 selenium-rich agro-food samples in 10 regions of China. We found that selenium-rich rice, flour, edible fungi and algae, meat, and tea contain higher levels of associated metals than other selenium-rich agro-food samples. Increasing the consumption of selenium-rich agro-food could make the actual intakes (AIs) of selenium for all population to meet respective recommended daily intakes (RDIs). Benefit-risk assessment results indicated that increasing the consumption of selenium-rich agro-food make AIs of selenium for all populations meet RDIs, chromium intakes for people under 18 years old exceed provisional tolerated daily intake (PTDIs), while arsenic and cadmium intakes are close to PTDIs. The main dietary contributors of selenium, chromium, arsenic and cadmium were meat, edible fungi and algae, rice, and rice, respectively. The study supported the consumption of selenium-rich agro-food for effective selenium supplement, but also emphasized potential risk from associated metals in selenium-rich agro-food, especially chromium.
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Affiliation(s)
- Liuquan Zhang
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture and Rural Affairs, Laboratory of Quality and Safety Risk Assessment for Agro-products Storage and Preservation of Ministry of Agriculture and Rural Affairs, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang International Scientific and Technological Cooperation Base of Health Food Manufacturing and Quality Control, Fuli Institute of Food Science, Zhejiang University, Hangzhou 310058; Ningbo Research Institute, Zhejiang University, Ningbo 315100; Laboratory of Quality and Safety Risk Assessment for Agro-products of Ministry of Agriculture and Rural Affairs, Institute of Agro-products Quality Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Huaxin Song
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture and Rural Affairs, Laboratory of Quality and Safety Risk Assessment for Agro-products Storage and Preservation of Ministry of Agriculture and Rural Affairs, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang International Scientific and Technological Cooperation Base of Health Food Manufacturing and Quality Control, Fuli Institute of Food Science, Zhejiang University, Hangzhou 310058; Ningbo Research Institute, Zhejiang University, Ningbo 315100
| | - Yanbin Guo
- College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100083, China
| | - Bei Fan
- Laboratory of Quality and Safety Risk Assessment for Agro-products Processing of Ministry of Agriculture and Rural Affairs, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Yatao Huang
- Laboratory of Quality and Safety Risk Assessment for Agro-products Processing of Ministry of Agriculture and Rural Affairs, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Xuefei Mao
- Institute of Quality Standard and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Kehong Liang
- Institute of Food and Nutrition Development, Ministry of Agriculture and Rural Affairs, Beijing, 100081, China
| | - Zhongqiu Hu
- Laboratory of Quality and Safety Risk Assessment for Agro-products of Ministry of Agriculture and Rural Affairs, College of Food Science and Engineering, Northwest A&F University, Yangling, 712100, China
| | - Xiangdong Sun
- Laboratory of Quality and Safety Risk Assessment for Agro-products of Ministry of Agriculture and Rural Affairs, Institute of Agro-Products Quality and safety, Heilongjiang Academy of Agricultural Science, Harbin, 150086, China
| | - Yong Fang
- College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing, 210046, China
| | - Xiaohong Mei
- Laboratory of Quality and Safety Risk Assessment for Agro-products Storage and Preservation of Ministry of Agriculture and Rural Affairs, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Hongqing Yin
- Enshi Tujia and Miao Autonomous Prefecture Academy of Agricultural Sciences, Enshi, 445000, China
| | - Bingru Li
- Laboratory of Quality and Safety Risk Assessment for Agro-products of Ministry of Agriculture and Rural Affairs, Beijing Research Center for Agricultural Standards and Testing, Beijing, 100097, China
| | - Yutao Wang
- Laboratory of Quality and Safety Risk Assessment for Agro-products of Ministry of Agriculture and Rural Affairs, Research Institute of Agriculture Quality Standards and Testing Technology, Shandong Province, Jinan, 250100, China
| | - Xianjin Liu
- Laboratory of Quality and Safety Risk Assessment for Agro-products of Ministry of Agriculture and Rural Affairs, Institute of Agro-products Quality Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China.
| | - Baiyi Lu
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture and Rural Affairs, Laboratory of Quality and Safety Risk Assessment for Agro-products Storage and Preservation of Ministry of Agriculture and Rural Affairs, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang International Scientific and Technological Cooperation Base of Health Food Manufacturing and Quality Control, Fuli Institute of Food Science, Zhejiang University, Hangzhou 310058; Ningbo Research Institute, Zhejiang University, Ningbo 315100.
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16
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Meng J, Zhang L, Shi W, Mei X, Yang Z, Ma J, Yu X, Guo X. A 18FDG Uptake Gene Signature Predicts Prognosis After Radiotherapy In Breast Cancer. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1627] [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: 10/23/2022]
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17
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Wang X, Luo J, Zhang L, Yu X, Yang Z, Mei X, Guo X, Ma J. Impact of Clinical-pathological Factors on Locoregional Recurrence in Mastectomy Patients with T1-2N1 Breast Cancer: Can We Omit Adjuvant Radiotherapy? Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1106] [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: 11/30/2022]
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18
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Zhang L, Yang Y, Wang Z, Fang J, Yu Q, Han B, Cang S, Chen G, Mei X, Yang Z, Ma R, Bi M, Ren X, Zhou J, Li B, Xu W, Ji Y, Peng B. ID:1329 ORIENT-11: Sintilimab + Pemetrexed + Platinum as First-Line Therapy for Locally Advanced or Metastatic Non-Squamous NSCLC. J Thorac Oncol 2020. [DOI: 10.1016/j.jtho.2020.08.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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19
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Yang Y, Sun J, Wang Z, Fang J, Yu Q, Han B, Cang S, Chen G, Mei X, Yang Z, Ma R, Bi M, Ren X, Zhou J, Li B, Zhou H, Wang S, Xu W, Peng B, Zhang L. LBA57 MHC-II antigen presentation pathway as a predictive biomarker for sintilimab plus chemotherapy in first-line treatment of locally advanced or metastatic non-squamous non-small cell lung cancer (nsq-NSCLC). Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.2290] [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: 11/30/2022] Open
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20
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Quan H, Wang L, Wang Z, Mei X, Ning J, She D. Alkylacylimidazoles in Claisen–Schmidt and Knoevenagel Condensations. Russ J Org Chem 2020. [DOI: 10.1134/s1070428020080187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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21
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Song H, Zhang L, Wu L, Huang W, Wang M, Zhang L, Shao Y, Wang M, Zhang F, Zhao Z, Mei X, Li T, Wang D, Liang Y, Li J, Xu T, Zhao Y, Zhong Y, Chen Q, Lu B. Phenolic acid profiles of common food and estimated natural intake with different structures and forms in five regions of China. Food Chem 2020; 321:126675. [DOI: 10.1016/j.foodchem.2020.126675] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 02/09/2020] [Accepted: 03/21/2020] [Indexed: 10/25/2022]
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22
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Zhang L, Guo Y, Liang K, Hu Z, Sun X, Fang Y, Mei X, Yin H, Liu X, Lu B. Determination of Selenium in Common and Selenium-Rich Rice from Different Areas in China and Assessment of Their Dietary Intake. Int J Environ Res Public Health 2020; 17:ijerph17124596. [PMID: 32604819 PMCID: PMC7344401 DOI: 10.3390/ijerph17124596] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 06/17/2020] [Accepted: 06/21/2020] [Indexed: 11/23/2022]
Abstract
In this study, 41 common rice varieties and 211 selenium-rich rice varieties from ten representative areas in China were collected in 2017–2019. The selenium contents of rice were analyzed with optimized inductively coupled plasma mass spectrometry (ICP-MS). Selenium concentrations of common rice and selenium-rich rice ranges were 0.81–7.26 and 0.76–180.73 µg/100 g, respectively. The selenium contents in selenium-rich rice from different areas were significantly different (p < 0.001) while those in common rice from different areas were not. The selenium-rich rice in Harbin and Keshan showed the lowest selenium level and those from selenium-rich areas (Enshi and Ankang) were highest. Based on the estimation of the risk assessment software @risk7.0 (Palisade Corporation, New York, NY, USA), the consumption of selenium-rich rice can effectively increase dietary selenium intake for the population. However, the risk index of P95 (Percentile 95) selenium exposure at the tolerable upper intake level for children at 2–14 years old exceeded 100%, with potential risk currently. Therefore, the consumption of selenium-rich rice should be properly monitored for young children and adolescents.
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Affiliation(s)
- Liuquan Zhang
- National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture and Rural Affairs, Laboratory of Quality and Safety Risk Assessment for Agro-Products Storage and Preservation of Ministry of Agriculture and Rural Affairs, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang International Scientific and Technological Cooperation Base of Health Food Manufacturing and Quality Control, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China;
- Fuli Institute of Food Science, Zhejiang University, Hangzhou 310058, China
- Institute of Food Quality Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China;
| | - Yanbin Guo
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100083, China;
| | - Kehong Liang
- Institute of Food and Nutrition Development, Ministry of Agriculture and Rural Affairs, Beijing 100081, China;
| | - Zhongqiu Hu
- Laboratory of Quality and Safety Risk Assessment for Agro-products, Ministry of Agriculture and Rural Affairs, College of Food Science and Engineering, Northwest A and F University, Yangling 712100, China;
| | - Xiangdong Sun
- Laboratory of Quality and Safety Risk Assessment for Agro-Products, Ministry of Agriculture and Rural Affairs, Institute of Agro-Products Quality and Safety, Heilongjiang Academy of Agriculture Science, Harbin 150086, China;
| | - Yong Fang
- College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing 210046, China;
| | - Xiaohong Mei
- Laboratory of Quality and Safety Risk Assessment for Agro-Products Storage and Preservation, Ministry of Agriculture and Rural Affairs, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China;
| | - Hongqing Yin
- Academy of Agricultural Sciences, Enshi Tujia and Miao Autonomous Prefecture, Enshi 445000, China;
| | - Xianjin Liu
- Institute of Food Quality Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China;
| | - Baiyi Lu
- National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture and Rural Affairs, Laboratory of Quality and Safety Risk Assessment for Agro-Products Storage and Preservation of Ministry of Agriculture and Rural Affairs, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang International Scientific and Technological Cooperation Base of Health Food Manufacturing and Quality Control, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China;
- Fuli Institute of Food Science, Zhejiang University, Hangzhou 310058, China
- Correspondence: ; Tel./Fax: +86-0571-89882665
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Kihira S, Koo C, Mahmoudi K, Leong T, Mei X, Rigney B, Aggarwal A, Doshi AH. Combination of Imaging Features and Clinical Biomarkers Predicts Positive Pathology and Microbiology Findings Suggestive of Spondylodiscitis in Patients Undergoing Image-Guided Percutaneous Biopsy. AJNR Am J Neuroradiol 2020; 41:1316-1322. [PMID: 32554421 DOI: 10.3174/ajnr.a6623] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 04/23/2020] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Pathology and microbiology results for suspected spondylodiscitis on MR imaging are often negative in up to 70% of cases. We aimed to predict whether MR imaging features will add diagnostic value when combined with clinical biomarkers to predict positive findings of spondylodiscitis on pathology and/or microbiology from percutaneous biopsy. MATERIALS AND METHODS In this retrospective single-center institutional review board-approved study, patients with radiologically suspected spondylodiscitis and having undergone percutaneous biopsies were assessed. Demographic characteristics, laboratory values, and tissue and blood cultures were collected. Pathology and microbiology results were used as end points. Three independent observers provided MR imaging-based scoring for typical MR imaging features for spondylodiscitis. Multivariate logistic regression and receiver operating characteristic analysis were performed to determine an optimal combination of imaging and clinical biomarkers in predicting positive findings on pathology and/or microbiology from percutaneous biopsy suggestive of spondylodiscitis. RESULTS Our patient cohort consisted of 72 patients, of whom 33.3% (24/72) had spondylodiscitis. The mean age was 63 ± 16 years with a male/female ratio of 41:31. Logistic regression revealed a combination with an area under the curve of 0.72 for pathology and 0.68 for pathology and/or microbiology. Epidural enhancement on MR imaging improved predictive performance to 0.87 for pathology and 0.78 for pathology and/or microbiology. CONCLUSIONS Our findings demonstrate that epidural enhancement on MR imaging added diagnostic value when combined with clinical biomarkers to help predict which patients undergoing percutaneous biopsy will have positive findings for spondylodiscitis on pathology and/or microbiology.
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Affiliation(s)
- S Kihira
- From the Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, New York
| | - C Koo
- From the Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, New York
| | - K Mahmoudi
- From the Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, New York
| | - T Leong
- From the Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, New York
| | - X Mei
- From the Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, New York
| | - B Rigney
- From the Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, New York
| | - A Aggarwal
- From the Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, New York
| | - A H Doshi
- From the Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, New York.
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Qian ZP, Mei X, Zhang YY, Zou Y, Zhang ZG, Zhu H, Guo HY, Liu Y, Ling Y, Zhang XY, Wang JF, Lu HZ. [Analysis of baseline liver biochemical parameters in 324 cases with novel coronavirus pneumonia in Shanghai area]. Zhonghua Gan Zang Bing Za Zhi 2020; 28:229-233. [PMID: 32270660 DOI: 10.3760/cma.j.cn501113-20200229-00076] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Objective: To summarize the clinical characteristics and liver biochemical parameters of 324 cases admitted with novel coronavirus pneumonia in Shanghai area. Methods: Clinical data and baseline liver biochemical parameters of 324 cases with novel coronavirus pneumonia admitted to the Shanghai Public Health Clinical Center from January 20, 2020 to February 24, 2020 were retrospectively analyzed. Patients were divided into two groups based on the status of illness: mild type (mild and typical) and severe type (severe and critical).The differences in clinical data and baseline liver biochemical parameters of the two groups were described and compared. The t-test and Wilcoxon rank-sum test were used for measurement data. The enumeration data were expressed by frequency and rate, and chi-square test was used. Results: Of the 324 cases with novel coronavirus pneumonia, 26 were severe cases (8%), with median onset of 5 days, 20 cases were HBsAg positive (6.2%), and 70 cases (21.6%) with fatty liver, diagnosed with X-ray computed tomography. Alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), γ-glutamyl transferase (GGT), total bilirubin (TBil), albumin(ALB) and international normalized ratio (INR) of 324 cases at baseline were 27.86 ± 20.02 U/L, 29.33 ± 21.02 U/L, 59.93 ± 18.96 U / L, 39.00 ± 54.44 U/L, 9.46 ± 4.58 μmol / L, 40.64 ± 4.13 g / L and 1.02 ± 0.10. Of which, ALT was > than the upper limit of normal (> ULN), accounting for 15.7% (51/324). ALT and AST > ULN, accounting for 10.5% (34/324). ALP > ULN, accounting for 1.2% (4/324). ALP and GGT > ULN, accounting for 0.9% (3/324). INR > ULN was lowest, accounting for 0.6% (2/324). There were no statistically significant differences (P > 0.05) in ALT [(21.5 vs. 26) U / L, P = 0.093], ALP [(57 vs.59) U/L, P = 0.674], and GGT [(24 vs.28) U/L, P = 0.101] between the severe group and the mild group. There were statistically significant differences in AST (23 U/L vs. 34 U/L, P < 0.01), TBil (10.75 vs. 8.05 μmol / L, P < 0.01), ALB (35.79 ± 4.75 vs. 41.07 ± 3.80 g/L, P < 0.01), and INR (1.00 vs. 1.04, P < 0.01). Conclusion: The baseline liver biochemical parameters of 324 cases with novel coronavirus pneumonia in Shanghai area was comparatively lower and the liverinjury degree was mild, and the bile duct cell damage was rare.
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Affiliation(s)
- Z P Qian
- Department of Severe Hepatology, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - X Mei
- Department of Infection and Immunology, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Y Y Zhang
- Department of Severe Hepatology, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Y Zou
- Department of Severe Hepatology, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Z G Zhang
- Department of Severe Hepatology, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - H Zhu
- Department of Severe Hepatology, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - H Y Guo
- Department of Severe Hepatology, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Y Liu
- Department of Severe Hepatology, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Y Ling
- Department of Infectious Disease, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - X Y Zhang
- Department of Education, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - J F Wang
- Department of Severe Hepatology, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - H Z Lu
- Department of Severe Hepatology, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China; Department of Infection and Immunology, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
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Mei X, Li F, Fu LJ, Zhang HB, Zhang YQ, Gao W, Huang MR, Liu TL, Guo Y, Shen J. [Clinical characteristics of anomalous origin of the left coronary artery from the pulmonary artery in 91 children]. Zhonghua Er Ke Za Zhi 2019; 57:614-619. [PMID: 31352747 DOI: 10.3760/cma.j.issn.0578-1310.2019.08.009] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the clinical manifestations, diagnosis, treatment and prognosis of anomalous origin of the left coronary artery from the pulmonary artery (ALCAPA) . Methods: A retrospective study identified 91 patients diagnosed with ALCAPA at Shanghai Children's Medical Center from March 2010 to August 2017. According to the left ventricular ejection fraction (LVEF) at the time of consultation, patients were divided into the cardiac insufficiency group (n=54) and the normal cardiac function group (n=37). Clinical features (age of onset, clinical performance, etc) and auxiliary examinations (electrocardiogram, echocardiography, etc) between the two groups were compared using a t-test and a Chi-square test. Prognostic factors were analyzed by an ordered logistic regression and a Pearson correlation coefficient. Results: (1) The age of diagnosis of patients in the cardiac insufficiency group who were usually misdiagnosed as cardiomyopathy was (10.0±2.6) months (20/54) , whereas the age of diagnosis of patients in the normal cardiac function group who were usually misdiagnosed as valvular diseases was (40.0±7.8) months (4/37). According to the pathophysiological mechanism, forty of the 54 (74%) patients in the cardiac insufficiency group were infantile type, and 78% patients (29/37) in the normal cardiac function group were adult type. (2) Preoperative electrocardiogram showed the deep Q wave in lead I occurred more frequently in the cardiac insufficiency group than in the normal cardiac function group (28/54 vs. 11/37, χ(2)=4.388, P=0.036). (3) Twenty patients died in the cardiac insufficiency group including 12 patients who died from postoperative cardiac pump failure and 8 children who did not undergo surgery due to poor prognosis and died from other reasons. There was no death in the normal cardiac function group. (4) Preoperative LVEF was the unique risk factor affecting prognosis (F=16.872, P=0.005). The preoperative LVEF was significantly lower than the postoperative LVEF ((37±11)% vs. (45±14)%, t=3.614, P=0.001) in the cardiac insufficiency group. During the follow-up period, 6 patients in the cardiac insufficiency group still presented with postoperative cardiac dysfunction, and the patients in the normal cardiac function group still had normal cardiac function. Conclusions: Preoperative LVEF was the unique risk factor affecting prognosis of ALCAPA. Patients with infantile type ALCAPA and preoperative cardiac insufficiency should receive long-term follow-up treatment.
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Affiliation(s)
- X Mei
- Department of Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - F Li
- Department of Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - L J Fu
- Department of Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - H B Zhang
- Department of Thoracic and Cardiovascular Surgery, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Y Q Zhang
- Department of Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - W Gao
- Department of Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - M R Huang
- Department of Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - T L Liu
- Department of Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Y Guo
- Department of Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - J Shen
- Department of Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
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Feng Y, Shao X, Huang K, Tian J, Mei X, Luo Y, Xu W. Correction: Mercury nanoladders: a new method for DNA amplification, signal identification and their application in the detection of Hg(ii) ions. Chem Commun (Camb) 2019; 55:4436. [PMID: 30933199 DOI: 10.1039/c9cc90137j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Correction for 'Mercury nanoladders: a new method for DNA amplification, signal identification and their application in the detection of Hg(ii) ions' by Yuxiang Feng et al., Chem. Commun., 2018, 54, 8036-8039.
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Affiliation(s)
- Yuxiang Feng
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
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Sheng Y, Zhao C, Zheng S, Mei X, Huang K, Wang G, He X. Anti-obesity and hypolipidemic effect of water extract from Pleurotus citrinopileatus in C57BL/6J mice. Food Sci Nutr 2019; 7:1295-1301. [PMID: 31024702 PMCID: PMC6475757 DOI: 10.1002/fsn3.962] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 12/19/2018] [Accepted: 01/25/2019] [Indexed: 12/03/2022] Open
Abstract
Obesity has become one of the most important health problems worldwide requiring urgent need for efficient control. Pleurotus citrinopileatus (P. citrinopileatus)-a type of edible mushroom with abundant bioactive molecules-is a promising source for achieving this goal. In the present study, we evaluated the anti-obesity and hypolipidemic effect of P. citrinopileatus water extract (PWE) using a series of biochemical assays in randomized high-fat diet-induced obese (DIO) C57BL/6J mice, which were gavaged daily with low or high levels of PWE (400 or 800 mg/kg of body weight, respectively) in addition to high-fat diet for 12 weeks. Results showed that PWE significantly reduced the weight gain, fat accumulation, and food intake of DIO mice within 12 weeks. PWE also decreased the serum triglycerides, cholesterol and low-density lipoprotein, aspartate transaminase, nonesterified fatty acid, and creatinine, but increased high-density lipoprotein. Additionally, PWE improved the glucose tolerance of mice fed with high fat. From above, we conclude that PWE has great potential as functional foods for management of obesity and/or associated metabolic disorders.
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Affiliation(s)
- Yao Sheng
- Beijing Advanced Innovation Center for Food Nutrition and Human HealthCollege of Food Science and Nutritional EngineeringChina Agricultural UniversityBeijingChina
| | - Changhui Zhao
- Department of Food Quality and SafetyCollege of Food Science and EngineeringJilin UniversityChangchunChina
| | - Shujuan Zheng
- Beijing Advanced Innovation Center for Food Nutrition and Human HealthCollege of Food Science and Nutritional EngineeringChina Agricultural UniversityBeijingChina
| | - Xiaohong Mei
- Beijing Advanced Innovation Center for Food Nutrition and Human HealthCollege of Food Science and Nutritional EngineeringChina Agricultural UniversityBeijingChina
| | - Kunlun Huang
- Beijing Advanced Innovation Center for Food Nutrition and Human HealthCollege of Food Science and Nutritional EngineeringChina Agricultural UniversityBeijingChina
| | - Guoyi Wang
- Logistics SchoolBeijing Wuzi UniversityBeijingChina
| | - Xiaoyun He
- Beijing Advanced Innovation Center for Food Nutrition and Human HealthCollege of Food Science and Nutritional EngineeringChina Agricultural UniversityBeijingChina
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Zhang X, Zhang T, Shi J, Zou S, Guo M, He X, Yang D, Mei X. A 90-day subchronic toxicology screen of genetically modified rice Lac-3 and its effects on the gut microbiota in Sprague-Dawley rats. Regul Toxicol Pharmacol 2019; 103:292-300. [PMID: 30738882 DOI: 10.1016/j.yrtph.2019.02.005] [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: 09/15/2018] [Revised: 12/15/2018] [Accepted: 02/04/2019] [Indexed: 11/18/2022]
Abstract
A 90-day subchronic toxicology screen of genetically modified (GM) rice Lac-3 expressing human lactoferrin (hLF) and its effects on the gut microbiota were studied in comparison to non-GM rice fed to Sprague-Dawley (SD) rats. Three different dietary concentrations (17.5%, 35% and 70%, w/w) of the GM rice or its corresponding non-GM rice were used. Additionally, the phylotypes of gut microbiota in the control group, the 70% GM rice diet group and the 70% non-GM rice diet group on day 90 were determined by 16S rRNA sequencing. The results of the 90-day subchronic feeding study demonstrated that the GM rice Lac-3 containing human lactoferrin (LF) gene is considered as safe as the non-GM rice. The results of bacterial 16S rRNA sequencing showed that the structure of gut microbiota in the 70% GM group slightly changed when compared with the control group and the 70% non-GM group. There were no significant differences in the microbiota diversity among the three groups.
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Affiliation(s)
- Xueqin Zhang
- College of Food Science and Nutritional Engineering, China Agricultural University, No.17 Qinghua East Road, Beijing, 100083, China; Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture, P.R, Beijing, 100083, China
| | - Tongtong Zhang
- Beijing Jintian Mai International Food Co., Ltd, Beijing, 101407, China
| | - Jingni Shi
- College of Life Sciences, Wuhan University, Wuhan, 430072, PR China
| | - Shiying Zou
- College of Food Science and Nutritional Engineering, China Agricultural University, No.17 Qinghua East Road, Beijing, 100083, China; Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture, P.R, Beijing, 100083, China
| | - Mingzhang Guo
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture, P.R, Beijing, 100083, China
| | - Xiaoyun He
- College of Food Science and Nutritional Engineering, China Agricultural University, No.17 Qinghua East Road, Beijing, 100083, China; Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture, P.R, Beijing, 100083, China
| | - Daichang Yang
- College of Life Sciences, Wuhan University, Wuhan, 430072, PR China
| | - Xiaohong Mei
- College of Food Science and Nutritional Engineering, China Agricultural University, No.17 Qinghua East Road, Beijing, 100083, China; Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture, P.R, Beijing, 100083, China.
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Ghani MW, Yi Z, Jiang W, Bin L, Cun LG, Birmany MW, Mei X. γ-Aminobutyric Acid (GABA) Induced in Vitro Differentiation of Rat Pancreatic Ductal Stem Cells into Insulin-Secreting Islet-Like Cell Clusters. Folia Biol (Praha) 2019; 65:246-255. [PMID: 32362308] [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: 06/11/2023]
Abstract
In vitro produced β-like cells can provide promising cell therapy for curing the epidemic of diabetes. In this context, we aimed to investigate the effects of different concentrations of γ-aminobutyric acid (GABA) on the differentiation of rat pancreatic ductal epithelial-like stem cells (PDESCs) into β-like cells. The PDESC line cells were cultured in the basal media (DMEM/F12 + 10% FBS + 1% penicillinstreptomycin) supplemented with 0 μM, 5 μM, 50 μM, 500 μM, and 5 mM of GABA for 28 days to induce their differentiation. The differentiated cells were detected by cell morphology, dithizone (DTZ) staining, immunofluorescence staining, real-time polymerase chain reaction (qPCR), and glucose-stimulated insulin secretion (GSIS) assay to validate their identity. At the end of 28 days, compared with the control group, enrichment of induced cells was high among the 5 μM, 50 μM, 500 μM, and 5 mM GABA induction groups. The formation of islet-like cell clusters (ICCs) began at 14 days, and the cell clusters showed a growth trend with the culture time. The induced ICCs were positive for DTZ staining, while the control group showed negative results for DTZ staining and the differentiated cells were also positive for β-cell-specific markers (Ins1 and Pdx1). GSIS assay of 50 μM induction group cells at 28 days showed significantly higher levels of C-peptide and insulin secretion than the control, 5 μM, 500 μM, and 5 mM GABA-treated groups (P < 0.01). At the same time, the 50 μM induction group cells also showed significantly higher levels of Ins1, Pdx1 and Nkx6.1 mRNA as compared to the 5 μM, 500 μM and 5 mM GABA groups (P < 0.01). Thus, the addition of GABA to the basal medium effectively induced differentiation of adult rat PDESCs into insulin-secreting β-like cells, and 50 μM was the most effective concentration for the induction.
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Affiliation(s)
- M W Ghani
- Department of Animal Breeding, Genetics and Reproduction, Guangdong Ocean University, Zhanjiang, Guangdong, China
| | - Z Yi
- Department of Animal Breeding, Genetics and Reproduction, Guangdong Ocean University, Zhanjiang, Guangdong, China
| | - W Jiang
- Department of Animal Breeding, Genetics and Reproduction, Guangdong Ocean University, Zhanjiang, Guangdong, China
| | - L Bin
- Department of Animal Breeding, Genetics and Reproduction, Guangdong Ocean University, Zhanjiang, Guangdong, China
| | - L G Cun
- Department of Animal Breeding, Genetics and Reproduction, Guangdong Ocean University, Zhanjiang, Guangdong, China
| | - M W Birmany
- Department of Animal Breeding, Genetics and Reproduction, Guangdong Ocean University, Zhanjiang, Guangdong, China
| | - X Mei
- Department of Animal Breeding, Genetics and Reproduction, Guangdong Ocean University, Zhanjiang, Guangdong, China
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Cui Z, Qin Q, Chen P, Wang J, Zhang S, Mei X, Xie B, Wang S. EFFECT OF DORSOMEDIAL HYPOTHALAMUS NEUROPEPTIDE Y KNOCKDOWN ON HEPATIC INSULIN SENSITIVITY. Acta Endocrinol (Buchar) 2019; -5:25-31. [PMID: 31149056 DOI: 10.4183/aeb.2019.25] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Objective In this study we investigated the effect of dorsomedial hypothalamus (DMH) neuropeptide Y (NPY) knock-down on hepatic insulin sensitivity in high-fat (HF) diet-fed rats. Methods Forty-eight Sprague-Dawley rats were randomly assigned to receive bilateral DMH injections of adeno-associated virus AAVshNPY or AAVshCTL and then accessed to regular chow. Five weeks after viral injection, half rats in each group were given access to the HF diet. At 16 weeks, rat livers were collected. Insulin receptor substrate-1 (IRS-1) and phosphoinositide 3-kinase (PI3K) mRNA expression was measured by qRT-PCR. Blood glucose levels were measured by the oxidase method, serum insulin, triglyceride, and TC levels were measured by Elisa. Pathological changes in the liver were assessed by hematoxylin-eosin (HE) staining. AKT, p-AKT, and GSK-3 levels were measured by western blotting. Results Compared with AAVshCTL-injected rats, AAVshNPY-injected rats showed a significant decrease in blood glucose concentrations; serum insulin, triglyceride, and TC; HOMA-IR; and IRS-1 and PI3K mRNA levels (P<0.05). ISI, GSK-3, and p-AKT levels were significantly increased (P<0.05). HE staining showed that AAVshNPY-injected rats fed the HF diet had mild fatty degeneration. Conclusion These results suggest that DMH NPY knock-down improves hepatic insulin sensitivity in HF diet-fed rats by activating the hepatic PI3K/AKT insulin signalling pathway.
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Affiliation(s)
- Z Cui
- First Affiliated Hospital of Zhengzhou University, Department of Endocrinology and Metabolism, Zhengzhou, China
| | - Q Qin
- First Affiliated Hospital of Zhengzhou University, Department of Endocrinology and Metabolism, Zhengzhou, China
| | - P Chen
- First Affiliated Hospital of Zhengzhou University, Department of Endocrinology and Metabolism, Zhengzhou, China
| | - J Wang
- First Affiliated Hospital of Zhengzhou University, Department of Endocrinology and Metabolism, Zhengzhou, China
| | - S Zhang
- First Affiliated Hospital of Zhengzhou University, Department of Endocrinology and Metabolism, Zhengzhou, China
| | - X Mei
- First Affiliated Hospital of Zhengzhou University, Department of Endocrinology and Metabolism, Zhengzhou, China
| | - B Xie
- First Affiliated Hospital of Zhengzhou University, Department of Endocrinology and Metabolism, Zhengzhou, China
| | - S Wang
- First Affiliated Hospital of Zhengzhou University, Department of Endocrinology and Metabolism, Zhengzhou, China
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Ma J, Yu X, Yang Z, Mei X, Guo X. Hypofractionated Partial Breast Irradiation after Breast-conserving Surgery for Patients with Low-risk Breast Cancer: Preliminary Safety Results in initial 50 Cases. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.1600] [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: 10/28/2022]
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Sun Y, Mei X, Gao C, Wu Z. Multiple rapidly growing necrotic eruptions on the face. Clin Exp Dermatol 2018; 44:422-424. [PMID: 30230004 DOI: 10.1111/ced.13739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/01/2018] [Indexed: 11/27/2022]
Affiliation(s)
- Y Sun
- Department of Dermatology, Shanghai First People's Hospital, Shanghai Jiaotong University, Shanghai, China
| | - X Mei
- Department of Dermatology, Shanghai First People's Hospital, Shanghai Jiaotong University, Shanghai, China
| | - C Gao
- Department of Dermatology, Shanghai First People's Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Z Wu
- Department of Dermatology, Shanghai First People's Hospital, Shanghai Jiaotong University, Shanghai, China
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Du W, Xu H, Mei X, Cao X, Gong L, Wu Y, Li Y, Yu D, Liu S, Wang Y, Li W. Probiotic Bacillus enhance the intestinal epithelial cell barrier and immune function of piglets. Benef Microbes 2018; 9:743-754. [DOI: 10.3920/bm2017.0142] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Bacillus is widely used in the livestock industry. This study was designed to evaluate the effects of probiotic Bacillus amyloliquefaciens SC06 (Ba), originally isolated from soil, in piglets diet as an alternative to antibiotics (aureomycin), mainly on intestinal epithelial barrier and immune function. Ninety piglets were divided into three groups: G1 (containing 150 mg/kg aureomycin in the diet); G2 (containing 75 mg/kg aureomycin and 1×108 cfu/kg Ba in the diet); G3 (containing 2×108 cfu/kg Ba in the diet without any antibiotics). The results showed that, compared with the antibiotic group (G1), villus length, crypt depth and villus length/crypt depth ratio of intestine significantly increased in the G2 and G3 groups. In addition, intestinal villi morphology, goblet-cell number, mitochondria structure and tight junction proteins of intestinal epithelial cells in G2 and G3 were better than in G1. The relative gene expression of intestinal mucosal defensin-1, claudin3, claudin4, and human mucin-1 in G3 was significantly lower, while the expression of villin was significantly higher than in the antibiotic group. Probiotic Ba could significantly decrease serum interferon (IFN)-α, IFN-γ, interleukin (IL)-1β, and IL-4 levels, whereas increase tumour necrosis factor (TNF)-α and IL-6 secretion. Ba could also significantly decrease cytokines TNF-α, IFN-γ, IL-1β, and IL-4 level in liver, whereas it significantly increased IFN-α. Furthermore, replacing antibiotics with Ba also significantly down-regulated gene expression of TNF and IL-1α in intestinal mucosa, but up-regulated IL-6 and IL-8 transcription. Dietary addition of Ba could significantly reduce the gene expression of nuclear factor kappa beta (NFκB)-p50 and Toll-like receptor (TLR)6, while there was no significant difference for that of myeloid differentiation primary response 88, TNF receptor-associated factor-6, nucleotide-binding oligomerisation domain-containing protein 1, TLR2, TLR4, and TLR9. Taken together, our findings demonstrated that probiotic Ba could increase the intestinal epithelial cell barrier and immune function by improving intestinal mucosa structure, tight junctions and by activating the TLRs signalling pathway.
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Affiliation(s)
- W. Du
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Institute of Feed Science, College of Animal Science, Zhejiang University, 310058 Hangzhou, China P.R
| | - H. Xu
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Institute of Feed Science, College of Animal Science, Zhejiang University, 310058 Hangzhou, China P.R
| | - X. Mei
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Institute of Feed Science, College of Animal Science, Zhejiang University, 310058 Hangzhou, China P.R
| | - X. Cao
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Institute of Feed Science, College of Animal Science, Zhejiang University, 310058 Hangzhou, China P.R
| | - L. Gong
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Institute of Feed Science, College of Animal Science, Zhejiang University, 310058 Hangzhou, China P.R
| | - Y. Wu
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Institute of Feed Science, College of Animal Science, Zhejiang University, 310058 Hangzhou, China P.R
| | - Y. Li
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Institute of Feed Science, College of Animal Science, Zhejiang University, 310058 Hangzhou, China P.R
| | - D. Yu
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Institute of Feed Science, College of Animal Science, Zhejiang University, 310058 Hangzhou, China P.R
| | - S. Liu
- National Animal Husbandry Service, Building 20, Maizidian St, Chaoyang District, 100125 Beijing, China P.R
| | - Y. Wang
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Institute of Feed Science, College of Animal Science, Zhejiang University, 310058 Hangzhou, China P.R
| | - W. Li
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Institute of Feed Science, College of Animal Science, Zhejiang University, 310058 Hangzhou, China P.R
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Wang HX, Mei X, Gong TX, Han N, Liu P, Wang J, Zhang ZM. [The impact of genetic variation of KDR on clinical outcomes of advanced colorectal cancer patients treated by first line bevacizumab based regimens]. Zhonghua Yi Xue Za Zhi 2018; 98:2737-2742. [PMID: 30220171 DOI: 10.3760/cma.j.issn.0376-2491.2018.34.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the association between kinase insertion region receptor (KDR) gene genetic variation and the efficacy of bevacizumab in patients with advanced colorectal cancer(CRC) were investigated in this study. Methods: 118 patients with advanced colorectal cancer who were treated by bevacizumab based first line regimens were included in this study. Peripheral blood and the biopsy tissue specimens of the CRC patients were collected for the genotyping of genetic variation and KDR gene expression, respectively. The univariate analysis of genotypes and prognosis was carried out by Kaplan-Meier survival analysis, and multivariate were adjusted by Cox regression analysis. Results: Located in the coding region, the prevalence of 889 C>T in KDR among the study population were as follows: CC genotype 86 cases (72.88%), CT genotype 30 cases (25.42%), TT genotype 2 cases (1.70%), minor allele frequency of 889 C>T is 0.14. The distribution of three genotypes in accordance with Hardy-Weinberg Equilibrium (P=0.737). There were no statistical differences in the distribution of the genotypes in baseline clinical data. TT and CT genotype patients were merged in the comparison of clinical outcomes. The clinical outcomes analysis of patients with different genotypes found that the objective response rates (ORR) of CT/TT genotypes were 34.38% and 43.02% (P=0.395), respectively. And the median progression free survival (PFS) of patients with CT/TT genotype and CC genotype were 7.5 and 9.7 months respectively, which was statistically significant (P=0.009). In terms of overall survival (OS), the median OS of the two genotypes were 19.3 and 20.1 (P=0.025), respectively. Adjusted in multivariate Cox regression analysis of PFS, CT/TT genotypes were an independent factor for PFS (OR=1.88, P=0.023). Additionally, of the 57 biopsy tissue specimens, gene expression analysis was conducted. And the results showed that the expression of KDR in cancer tissues of the patients with CT/TT genotypes were significantly higher than those of the CC genotype patients (P<0.001). Conclusion: Among advanced colorectal cancer patients treated by bevacizumab, the polymorphism 889 C>T of KDR may impact the clinical outcomes of bevacizumab first line treatment by influencing the mRNA expression of KDR.
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Affiliation(s)
- H X Wang
- Department of Oncology, the Second Affiliated Hospital of Zhengzhou University, Zhengzhou 450014, China
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Wang M, Huang W, Hu Y, Zhang L, Shao Y, Wang M, Zhang F, Zhao Z, Mei X, Li T, Wang D, Liang Y, Li J, Huang Y, Zhang L, Xu T, Song H, Zhong Y, Lu B. Phytosterol Profiles of Common Foods and Estimated Natural Intake of Different Structures and Forms in China. J Agric Food Chem 2018; 66:2669-2676. [PMID: 29397719 DOI: 10.1021/acs.jafc.7b05009] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Phytosterols are well-known for their cholesterol-lowering effects, and the structures and forms of phytosterols affect their bioactivity. We aimed to illustrate the phytosterol profiles in common foods and estimate their natural intake in five geographical regions and among different age groups in China. In total, 12 phytosterols in free and esterified forms of 119 foods from five regions across China were examined using gas chromatography-mass spectrometry. Then, the dietary intake of phytosterols was calculated combined with the dietary foods intake data of Chinese people. The total phytosterol content was highest in vegetable oils (150.4-1230.9 mg/100 g), followed by legumes (129.6-275.6 mg/100 g), nuts (18.9-255.2 mg/100 g), and cereals (11.9-93.8 mg/100 g). Vegetables and fruits contained lower contents of total phytosterols. Phytosterols were mainly esterified in most common foods except in nuts. The predominant phytosterols were β-sitosterol, campesterol, and stigmasterol, all of which belonged to plant sterols and 4-desmethylsterols. Total phytosterol intake varied across different regions, ranging between 257.7 and 473.7 mg/standard-person (sp)/day, with the highest intake in Beijing, followed by Hangzhou, Wuhan, Chongqing, and Guangzhou. However, phytosterol proportion was similar across regions, with β-sitosterol accounting for 46.5-50.3% of the natural intake. Phytosterol intake was mainly constituted by plant sterols and 4-desmethylsterols in esterified form (61.9-74.6%). At the age of 2-70 years, phytosterol intake ranged from 154.3 mg/day to 348.0 mg/day in the national scale.
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Affiliation(s)
- Mengmeng Wang
- College of Biosystems Engineering and Food Science , Fuli Institute of Food Science , National Engineering Laboratory of Intelligent Food Technology and Equipment , Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture , Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture , Zhejiang Key Laboratory for Agro-Food Processing , Zhejiang University , Hangzhou 310058 , China
| | - Weisu Huang
- Department of Applied Technology , Zhejiang Economic & Trade Polytechnic , Hangzhou 310018 , China
| | - Yinzhou Hu
- College of Biosystems Engineering and Food Science , Fuli Institute of Food Science , National Engineering Laboratory of Intelligent Food Technology and Equipment , Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture , Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture , Zhejiang Key Laboratory for Agro-Food Processing , Zhejiang University , Hangzhou 310058 , China
| | - Liangxiao Zhang
- Oil Crops Research Institute , Chinese Academy of Agricultural Sciences , Wuhan 430062 , China
| | - Yafang Shao
- China National Rice Research Institute , Hangzhou 310006 , China
| | - Meng Wang
- Beijing Research Center for Agricultural Standards and Testing , Beijing 100097 , China
| | - Fang Zhang
- Beijing University of Technology , Beijing 100124 , China
| | - Ziyan Zhao
- Southwest University , Chongqing 400715 , China
| | - Xiaohong Mei
- China Agricultural University , Beijing 100083 , China
| | - Tao Li
- Chinese Academy of Tropical Agricultural Science , Haikou 571101 , China
| | - Donghui Wang
- Institute of Agro-Products Processing Science and Technology , Chinese Academy of Agricultural Sciences , Beijing 100193 , China
| | - Ying Liang
- Key Laboratory of Food Quality and Safety of Jiangsu Province , Nanjing 210014 , China
| | - Jing Li
- The Research Institute of Pomology , Chinese Academy of Agricultural Sciences , Xingcheng 125100 , China
| | - Yining Huang
- Department of Applied Technology , Zhejiang Economic & Trade Polytechnic , Hangzhou 310018 , China
| | - Liuquan Zhang
- College of Biosystems Engineering and Food Science , Fuli Institute of Food Science , National Engineering Laboratory of Intelligent Food Technology and Equipment , Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture , Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture , Zhejiang Key Laboratory for Agro-Food Processing , Zhejiang University , Hangzhou 310058 , China
| | - Tao Xu
- College of Biosystems Engineering and Food Science , Fuli Institute of Food Science , National Engineering Laboratory of Intelligent Food Technology and Equipment , Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture , Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture , Zhejiang Key Laboratory for Agro-Food Processing , Zhejiang University , Hangzhou 310058 , China
| | - Huaxin Song
- College of Biosystems Engineering and Food Science , Fuli Institute of Food Science , National Engineering Laboratory of Intelligent Food Technology and Equipment , Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture , Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture , Zhejiang Key Laboratory for Agro-Food Processing , Zhejiang University , Hangzhou 310058 , China
| | - Yongheng Zhong
- College of Biosystems Engineering and Food Science , Fuli Institute of Food Science , National Engineering Laboratory of Intelligent Food Technology and Equipment , Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture , Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture , Zhejiang Key Laboratory for Agro-Food Processing , Zhejiang University , Hangzhou 310058 , China
| | - Baiyi Lu
- College of Biosystems Engineering and Food Science , Fuli Institute of Food Science , National Engineering Laboratory of Intelligent Food Technology and Equipment , Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture , Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture , Zhejiang Key Laboratory for Agro-Food Processing , Zhejiang University , Hangzhou 310058 , China
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36
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Feng Y, Shao X, Huang K, Tian J, Mei X, Luo Y, Xu W. Mercury nanoladders: a new method for DNA amplification, signal identification and their application in the detection of Hg(ii) ions. Chem Commun (Camb) 2018; 54:8036-8039. [DOI: 10.1039/c8cc03851a] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A biosensor based on Hg(ii) nanoladders integrated with graphene oxide (GO) for Hg(ii) detection was developed.
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Affiliation(s)
- Yuxiang Feng
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety)
- Ministry of Agriculture
- Beijing
- China
| | - Xiangli Shao
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety)
- Ministry of Agriculture
- Beijing
- China
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
| | - Kunlun Huang
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety)
- Ministry of Agriculture
- Beijing
- China
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
| | - Jingjing Tian
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety)
- Ministry of Agriculture
- Beijing
- China
| | - Xiaohong Mei
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety)
- Ministry of Agriculture
- Beijing
- China
| | - Yunbo Luo
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety)
- Ministry of Agriculture
- Beijing
- China
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
| | - Wentao Xu
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety)
- Ministry of Agriculture
- Beijing
- China
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
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37
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El-Husseini A, Aghil A, Ramirez J, Sawaya B, Rajagopalan N, Baz M, Mei X, Davenport DL, Gedaly R. Outcome of kidney transplant in primary, repeat, and kidney-after-nonrenal solid-organ transplantation: 15-year analysis of recent UNOS database. Clin Transplant 2017; 31. [DOI: 10.1111/ctr.13108] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/28/2017] [Indexed: 01/17/2023]
Affiliation(s)
- A. El-Husseini
- Division of Nephrology; University of Kentucky; Lexington KY USA
- Division of Nephrology; Mansoura University; Mansoura Egypt
| | - A. Aghil
- Division of Nephrology; University of Kentucky; Lexington KY USA
| | - J. Ramirez
- Division of Nephrology; University of Kentucky; Lexington KY USA
| | - B. Sawaya
- Division of Nephrology; University of Kentucky; Lexington KY USA
| | - N. Rajagopalan
- Division of Cardiology; University of Kentucky; Lexington KY USA
| | - M. Baz
- Transplant Center; University of Kentucky; Lexington KY USA
| | - X. Mei
- Transplant Center; University of Kentucky; Lexington KY USA
| | - D. L. Davenport
- Department of Surgery; University of Kentucky; Lexington KY USA
| | - R. Gedaly
- Transplant Center; University of Kentucky; Lexington KY USA
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38
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Luo J, Jin K, Chen X, Yang Z, Zhang L, Mei X, Ma J, Zhang Z, Shao Z, Yu X, Guo X. Internal Mammary Node Irradiation Improves Survival for Patients with Clinical Stage II-III Breast Cancer and Treated with Neoadjuvant Chemotherapy. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.535] [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: 11/27/2022]
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39
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Du X, Jornten Karlsson M, Xu Y, Guo J, Li J, Mei X, Han L, Wang J, Shen Z, Ryden A, Ahlqvist M, Sunden M, Karlson B, Ma C. GW28-e0740 eHelp China, a randomised trial evaluating the effect of a smart phone-based patient support tool on treatment duration in patients prescribed rosuvastatin in China. J Am Coll Cardiol 2017. [DOI: 10.1016/j.jacc.2017.07.095] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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40
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Karlson BW, Jörntén-Karlsson M, Xu Y, Guo J, Li J, Mei X, Han L, Wang J, Li J, Shen Z, Ryden A, Ahlqvist M, Sunden M, Du X, Ma C. Rationale, design, and baseline characteristics of a randomised trial evaluating the effect of a smart phone based patient support tool on treatment duration in patients prescribed rosuvastatin in china (EHELP China). Atherosclerosis 2017. [DOI: 10.1016/j.atherosclerosis.2017.06.803] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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41
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Middleton K, Al-Dujaili S, Mei X, Günther A, You L. Microfluidic co-culture platform for investigating osteocyte-osteoclast signalling during fluid shear stress mechanostimulation. J Biomech 2017; 59:35-42. [PMID: 28552413 DOI: 10.1016/j.jbiomech.2017.05.012] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 05/12/2017] [Accepted: 05/13/2017] [Indexed: 11/30/2022]
Abstract
Bone cells exist in a complex environment where they are constantly exposed to numerous dynamic biochemical and mechanical stimuli. These stimuli regulate bone cells that are involved in various bone disorders, such as osteoporosis. Knowledge of how these stimuli affect bone cells have been utilised to develop various treatments, such as pharmaceuticals, hormone therapy, and exercise. To investigate the role that bone loading has on these disorders in vitro, bone cell mechanotransduction studies are typically performed using parallel plate flow chambers (PPFC). However, these chambers do not allow for dynamic cellular interactions among different cell populations to be investigated. We present a microfluidic approach that exposes different cell populations, which are located at physiologically relevant distances within adjacent channels, to different levels of fluid shear stress, and promotes cell-cell communication between the different channels. We employed this microfluidic system to assess mechanically regulated osteocyte-osteoclast communication. Osteoclast precursors (RAW264.7 cells) responded to cytokine gradients (e.g., RANKL, OPG, PGE-2) developed by both mechanically stimulated (fOCY) and unstimulated (nOCY) osteocyte-like MLO-Y4 cells simultaneously. Specifically, we observed increased osteoclast precursor cell densities and osteoclast differentiation towards nOCY. We also used this system to show an increased mechanoresponse of osteocytes when in co-culture with osteoclasts. We envision broad applicability of the presented approach for microfluidic perfusion co-culture of multiple cell types in the presence of fluid flow stimulation, and as a tool to investigate osteocyte mechanotransduction, as well as bone metastasis extravasation. This system could also be applied to any multi-cell population cross-talk studies that are typically performed using PPFCs (e.g. endothelial cells, smooth muscle cells, and fibroblasts).
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Affiliation(s)
- K Middleton
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, 164 College Street, Toronto, Ontario M5S 3G9, Canada
| | - S Al-Dujaili
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, 164 College Street, Toronto, Ontario M5S 3G9, Canada
| | - X Mei
- Department of Mechanical and Industrial Engineering, University of Toronto, 5 King's College Road, Toronto, Ontario M5S 3G8, Canada
| | - A Günther
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, 164 College Street, Toronto, Ontario M5S 3G9, Canada; Department of Mechanical and Industrial Engineering, University of Toronto, 5 King's College Road, Toronto, Ontario M5S 3G8, Canada
| | - L You
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, 164 College Street, Toronto, Ontario M5S 3G9, Canada; Department of Mechanical and Industrial Engineering, University of Toronto, 5 King's College Road, Toronto, Ontario M5S 3G8, Canada.
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42
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Mei X. P08.07 Glioblastoma stem cell differentiation into endothelial cells: evidenced through live cell imaging. Neuro Oncol 2017. [DOI: 10.1093/neuonc/nox036.197] [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: 11/14/2022] Open
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43
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Chen Y, Mei X. P08.29 Histologic study of microcirculation patterns in human glioblastoma. Neuro Oncol 2016. [DOI: 10.1093/neuonc/now188.162] [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: 11/13/2022] Open
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44
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Zhou Z, Luo J, Chen X, Yang Z, Ma J, Mei X, Zhang L, Hu Q, Guo X, Yu X. The Impact of Pathological Response of Primary Tumor in Patients With Locally Advanced Breast Cancer Who Reached Axillary Pathological Complete Response (pCR) After Neoadjuvant Chemotherapy. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.700] [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: 11/30/2022]
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45
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Yang Z, Yu X, Mei X, Guo X, Ma J. Clinical Results of Phase 2 Study of Whole-Breast Irradiation With Simultaneously Integrated Tumor Bed Boost (WBI-SIB): A Single-Center Experience. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.631] [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: 11/29/2022]
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46
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Ma J, Mei X, Yang Z, Yu X, Zhang Z, Guo X. Locoregional Control Following Salvage Irradiation in Women With Isolated Locoregional Recurrence After Mastectomy Alone. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.618] [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: 10/20/2022]
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47
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Han S, Zou S, He X, Huang K, Mei X. Potential subchronic food safety of the stacked trait transgenic maize GH5112E-117C in Sprague-Dawley rats. Transgenic Res 2016; 25:453-63. [DOI: 10.1007/s11248-016-9944-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 02/22/2016] [Indexed: 11/24/2022]
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48
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Hu Q, Mei X, Feng Y, Ma J, Yang Z, Shao Z, Yu X, Guo X. Early Local Recurrence Presents Adverse Effect on Outcomes of Primary Breast Sarcoma: A Retrospective Study From Single-Institute. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.2153] [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: 10/22/2022]
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49
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Zhang L, Zhou Z, Yu X, Mei X, Yang Z, Chen X, Guo X. Intraoperative Radiation Therapy Versus Whole-Breast External Beam Radiation Therapy in Early-Stage Breast Cancer: A Systematic Review and Meta-Analysis. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.569] [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: 11/26/2022]
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50
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Li X, Gao J, Huang K, Qi X, Dai Q, Mei X, Xu W. Dynamic changes of global DNA methylation and hypermethylation of cell adhesion-related genes in rat kidneys in response to ochratoxin A. WORLD MYCOTOXIN J 2015. [DOI: 10.3920/wmj2014.1795] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Ochratoxin A (OTA), which is found in a variety of food products, is associated with the development of nephrotoxicity and carcinogenicity in rats and has raised public health concerns. A previous study in our laboratory indicated that OTA exposure induced cytotoxicity by decreasing global DNA methylation in vitro. However, the relationship between OTA-induced nephrotoxicity and DNA methylation changes in vivo remains unclear. The object of this study was to investigate whether OTA can change global DNA methylation or alter the expression of several critical tumour-related genes by inducing methylation modifications before carcinogenesis. We focused on the mechanism of action of OTA in regard to DNA methylation, including the expression of DNA methyltransferases and the regulation of specific cell signalling pathways. Dynamic and dose-dependent changes of global DNA methylation were observed during OTA-induced nephrotoxicity and probably associated with the expression of DNA methyltransferase 1. 13-week exposure of OTA caused hypermethylation in the promoters of critical cell adhesion-related genes, E-cadherin and N-cadherin, leading to reduction of the corresponding mRNA expression, accompanied by transcriptional activation of the Wnt and PI3K/AKT pathways. These findings suggested that long-term OTA exposure could disrupt DNA methylation profile, which might be one of the possible mechanisms of OTA-induced nephrotoxicity.
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Affiliation(s)
- X. Li
- Laboratory of food safety and molecular biology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China P.R
| | - J. Gao
- Laboratory of food safety and molecular biology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China P.R
| | - K. Huang
- Laboratory of food safety and molecular biology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China P.R
- Laboratory of Food quality and safety, Beijing 100083, China P.R
| | - X. Qi
- Laboratory of food safety and molecular biology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China P.R
| | - Q. Dai
- Laboratory of food safety and molecular biology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China P.R
| | - X. Mei
- Laboratory of food safety and molecular biology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China P.R
| | - W. Xu
- Laboratory of food safety and molecular biology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China P.R
- Laboratory of Food quality and safety, Beijing 100083, China P.R
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