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Yang Y, Mei X, Liu X, Liu T, Bai Y, Feng L. Clinical Efficacy of Detailed Intervention After Clopidogrel Treatment and Analysis of Angina Relief in Patients with CHD. Altern Ther Health Med 2023:AT9445. [PMID: 37883764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Objective Coronary heart disease is incurable and prone to recurrence, and long-term dependence on medication and good nursing management to improve the prognosis. The effect of clopidogrel in the treatment of coronary heart disease is affected by many factors, so paying more attention to details in the process of patient care is conducive to creating more ideal recovery conditions for patients. The purpose of this study is to conduct detailed intervention for coronary heart disease (CHD) after clopidogrel treatment, and to analyze the clinical efficacy of this intervention mode on CHD patients and the relief of angina pectoris. Methods A total of 120 patients with coronary heart disease who were diagnosed and treated in our hospital from May 2020 to March 2022 were selected as the research objects and divided into a detail group (n=60) and a routine group (n=60) according to the computer randomization method, All research subjects were given clopidogrel intervention, followed by routine intervention in the routine group, and detailed intervention in the detail group. Detailed intervention includes specific measures such as psychological intervention, life intervention, health education, medical assessments, personalized care. The control of angina pectoris of the subjects was analyzed, and the daily life, motor function, quality of life score, negative emotion score and complications were observed. Results The dimension score of TS [(83.50±5.14) points vs (77.42±4.35) points], DP [(85.59±5.78) points vs (80.14±5.43) points], PL [(79.62±5.19) points vs (74.18±5.04) points], AS [(90.69±6.35) points vs (85.57±6.12) points], AF[(83.54±5.22) points vs (77.51±5.16) points] in the detail group were higher than those of conventional group (P < .001). The differences in daily life, motor function of the subjects before the intervention were not comparable (P > .05), and the scores of daily life [(86.14±5.52) points vs (65.48±5.17) points] and motor function [(88.97±5.34) points vs (70.58±5.46) points] in the detail group at 4 weeks after intervention were higher than those in the routine group (P < .001). The quality of life in the detail group [mental state of (17.56±2.12) points vs (20.13±2.09) points, mental health of (15.62±2.34) points vs (18.09±2.06) points, social function of (15.86±2.41) points vs (18.11±2.14) points, emotional function of (14.36±3.45) points vs (16.78±3.69) points] were lower than those of the conventional group (P < .001). The negative mood scores [SAS score of (41.70±3.14) points vs (67.14±3.25) points, SDS score of (39.59±4.11) points vs (60.58±4.54) points] in the detail group were lower than those of the conventional group (P < .001). In addition, the total incidence of complications (3.33% vs 13.33%) in the detail group was significantly lower than that in the regular group (P < .001). Conclusions Detailed intervention after clopidogrel treatment in CHD patients can significantly improve the efficacy of patients, reduce angina pectoris, and at the same time can effectively improve various physical functions and relieve their negative emotions, which is worthy of being widely used in clinical practice. Better control of angina pectoris is beneficial to reduce the frequency of hospital admission and save medical resources. The sample size of this study is small, and the sample size will be further expanded in the future to improve the scientific conclusion.
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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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Lu M, Deng P, Yang L, Wang X, Mei X, Zhou C, Chen M, Zhou Z, Pi H, Wu L, Yu Z. Manganese overexposure induces Parkinson-like symptoms, altered lipid signature and oxidative stress in C57BL/6 J mouse. Ecotoxicol Environ Saf 2023; 263:115238. [PMID: 37441952 DOI: 10.1016/j.ecoenv.2023.115238] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [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: 03/22/2023] [Revised: 07/02/2023] [Accepted: 07/05/2023] [Indexed: 07/15/2023]
Abstract
Although adequate intake of manganese (Mn) is essential to humans, Mn in excess is neurotoxic. Exposure to extremely high doses of Mn results in "manganism", a condition that exhibits Parkinson-like symptoms. However, the mechanisms underlying its neurotoxic effects in Mn-induced parkinsonism pathogenesis are unclear. In this study, 8-week-old male C57BL/6 J mice were injected intraperitoneally with saline and 50 mg/kg MnCl2 respectively once daily for 14 days to produce an acute Mn neurotoxicity model. Accumulation of Mn in the midbrain, motor dysfunction and loss of dopaminergic neurons in the substantia nigra evidenced Mn neurotoxicity. Untargeted lipidomic analysis demonstrated that Mn overexposure altered lipidome profiles. A significant modulation of 12 lipid subclasses belonging to 5 different categories were found in the midbrain and among the most abundant lipids were sphingolipids, glycerophospholipids, and glycerides. The levels of sphingomyelin (SM) were significantly decreased after Mn treatment. The expression of SM biosynthesis genes was decreased dramatically while sphingomyelinase was up-regulated. In addition, we observed oxidative stress in both the midbrain of mice and MN9D cells, indicated by the increase of MDA level, the decrease of reduced GSH level and the inhibition of SOD and GPx enzyme activities. There was a correlation between these changes and motor dysfunctions. Overall, our study is the first to use lipidomics techniques to explore the pathogenesis of Mn-induced parkinsonism in C57BL/6 J mice. Mn induced molecular events in the midbrain, such as lipid metabolism disorders, oxidative stress and dopaminergic neurons injury, may mechanistically play important roles in the pathogenesis of Parkinson-like symptoms. Moreover, these findings emphasize the necessity for reducing the health risk of environmental neurotoxic pollutants in relation to parkinsonism.
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Affiliation(s)
- Muxue Lu
- School of Medicine, Guangxi University, Nanning 530004, Guangxi, China
| | - Ping Deng
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing, China
| | - Lingling Yang
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing, China
| | - Xue Wang
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing, China
| | - Xiang Mei
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing, China
| | - Chao Zhou
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing, China; 953 Hospital, Shigatse Branch, Xinqiao Hospital, Third Military Medical University, Shigatse 857000, China
| | - Mengyan Chen
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing, China
| | - Zhou Zhou
- Center for Neurointelligence, School of Medicine, Chongqing University, Chongqing 400030, China
| | - Huifeng Pi
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing, China
| | - Lichuan Wu
- School of Medicine, Guangxi University, Nanning 530004, Guangxi, China.
| | - Zhengping Yu
- School of Medicine, Guangxi University, Nanning 530004, Guangxi, China.
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Pan L, Liu M, Kang Y, Mei X, Hu G, Bao C, Zheng Y, Zhao H, Chen C, Wang N. Comprehensive genomic analyses of Vigna unguiculata provide insights into population differentiation and the genetic basis of key agricultural traits. Plant Biotechnol J 2023. [PMID: 36965079 DOI: 10.1111/pbi.14047] [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] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 02/09/2023] [Accepted: 03/22/2023] [Indexed: 06/18/2023]
Abstract
Vigna unguiculata is an important legume crop worldwide. The subsp. sesquipedalis and unguiculata are the two major types grown; the former is mainly grown in Asia to produce fresh pods, while the latter is mainly grown in Africa to produce seeds. Here, a chromosome-scale genome for subsp. sesquipedalis was generated by combining high-fidelity (HiFi) long-read sequencing with high-throughput chromosome conformation capture (Hi-C) technology. The genome size for all contigs and N50 were 594 and 18.5 Mb, respectively. The Hi-C interaction map helped cluster 91% of the contigs into 11 chromosomes. Genome comparisons between subsp. sesquipedalis and unguiculata revealed extensive genomic variations, and some variations resulted in gene loss. A germplasm panel with 315 accessions of V. unguiculata was resequenced, and a genomic variation map was constructed. Population structure and phylogenetic analyses suggested that subsp. sesquipedalis originated from subsp. unguiculata. Highly differentiated genomic regions were also identified, and a number of genes functionally enriched in adaptations were located in these regions. Two traits, pod length (PL) and pod width (PW), were observed for this germplasm, and genome-wide association analysis of these traits was performed. The quantitative trait loci (QTLs) for these two traits were identified, and their candidate genes were uncovered. Interestingly, genomic regions of PL QTLs also showed strong signals of artificial selection. Taken together, the results of this study provide novel insights into the population differentiation and genetic basis of key agricultural traits in V. unguiculata.
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Affiliation(s)
- Lei Pan
- Hubei Province Engineering Research Center of Legume Plants, School of Life Sciences, Jianghan University, Wuhan, China
| | - Minghui Liu
- Hubei Province Engineering Research Center of Legume Plants, School of Life Sciences, Jianghan University, Wuhan, China
| | - Yan Kang
- Hubei Province Engineering Research Center of Legume Plants, School of Life Sciences, Jianghan University, Wuhan, China
| | - Xiang Mei
- Hubei Province Engineering Research Center of Legume Plants, School of Life Sciences, Jianghan University, Wuhan, China
| | - Gege Hu
- Hubei Province Engineering Research Center of Legume Plants, School of Life Sciences, Jianghan University, Wuhan, China
| | - Chun Bao
- Hubei Province Engineering Research Center of Legume Plants, School of Life Sciences, Jianghan University, Wuhan, China
| | - Yu Zheng
- Hubei Province Engineering Research Center of Legume Plants, School of Life Sciences, Jianghan University, Wuhan, China
| | - Huixia Zhao
- Hubei Province Engineering Research Center of Legume Plants, School of Life Sciences, Jianghan University, Wuhan, China
| | - Chanyou Chen
- Hubei Province Engineering Research Center of Legume Plants, School of Life Sciences, Jianghan University, Wuhan, China
| | - Nian Wang
- College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
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Xu L, Ye Z, Pan Y, Zhang Y, Gong H, Mei X, Qiao W, Gan L. Effect of lignocellulosic biomass composition on the performance of biochar for the activation of peroxymonosulfate to degrade diclofenac. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123312] [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: 02/05/2023]
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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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Mei X, Gao H, Ding Y, Xue C, Xu L, Wang Y, Zhang L, Ma M, Zhang Z, Xiao Y, Yang X, Yin C, Wang Z, Yang M, Xia D, Wang C. Coupling of (methane + air)-membrane biofilms and air-membrane biofilms: Treatment of p-nitroaniline wastewater. J Hazard Mater 2022; 435:128946. [PMID: 35468395 DOI: 10.1016/j.jhazmat.2022.128946] [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] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 04/06/2022] [Accepted: 04/14/2022] [Indexed: 06/14/2023]
Abstract
Membrane biofilm (MBf) technology is a promising biological water treatment process that combines membrane aeration with biofilms. To expand its application in the treatment of toxic organic wastewater, methane/air gas mixture-MBfs ((CH4 + Air)-MBfs) and air-MBfs were coupled to enhance the treatment of p-nitroaniline (PNA) wastewater. Based on exploration of the membrane permeability of methane and oxygen, a hybrid MBf reactor was constructed, and the degradation characteristics of PNA and the coupling effects of (CH4 + Air)-MBfs and air-MBfs were studied. The permeation flux of methane was found to be 1.114 g/(m2 d) when using a methane/air gas mixture at an aeration pressure of 10 kPa, and this result was better than that when methane was used as the aeration gas alone. Aeration with a methane/air gas mixture provided conditions for realizing aerobic methane oxidation; the aerobic methane oxidation that occurred in the (CH4 + Air)-MBfs promoted the reduction of PNA, and the intermediates of PNA degradation were further degraded by the air-MBfs. At an influent PNA membrane area load of 1.67 g/(m2 d), the PNA removal load reached 187.30 g/(m3 d). The coupling of MBfs took advantage of different matrix-based MBfs and promoted the degradation of PNA by utilizing the synergistic effects of various functional microorganisms.
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Affiliation(s)
- Xiang Mei
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China.
| | - Han Gao
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Yang Ding
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Chao Xue
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Lijie Xu
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Yong Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Lei Zhang
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Mengyuan Ma
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Zimiao Zhang
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Yanyan Xiao
- Nanjing Haiyi Environmental Protection Engineering Co., Ltd., Nanjing 211200, China
| | - Xu Yang
- Nanjing Haiyi Environmental Protection Engineering Co., Ltd., Nanjing 211200, China
| | - Chengqi Yin
- Environmental Protection Design & Research Center, China Design Group Co., Ltd., Nanjing 210014, China
| | - Zhan Wang
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Mengmeng Yang
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Dongyu Xia
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Cai Wang
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
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Lin J, Ge L, Mei X, Niu Y, Chen C, Hou S, Liu X. Integrated ONT Full-Length Transcriptome and Metabolism Reveal the Mechanism Affecting Ovulation in Muscovy Duck (Cairina moschata). Front Vet Sci 2022; 9:890979. [PMID: 35873698 PMCID: PMC9305713 DOI: 10.3389/fvets.2022.890979] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 06/16/2022] [Indexed: 11/13/2022] Open
Abstract
Ovulation is a complicated physiological process that is regulated by a multitude of different pathways. In comparison to mammalian studies, there are few reports of ovulation in Muscovy ducks, and the molecular mechanism of ovarian development remained unclear. In order to identify candidate genes and metabolites related to Muscovy duck follicular ovulation, the study combined Oxford Nanopore Technologies (ONT) full-length transcriptome and metabolomics to analyze the differences in gene expression and metabolite accumulation in the ovaries between pre-ovulation (PO) and consecutive ovulation (CO) Muscovy ducks. 83 differentially accumulated metabolites (DAMs) were identified using metabolomics analysis, 33 of which are related to lipids. Combined with data from previous transcriptomic analyses found that DEGs and DAMs were particularly enriched in processes including the regulation of glycerophospholipid metabolism pathway, arachidonic acid metabolic pathway and the steroid biosynthetic pathway. In summary, the novel potential mechanisms that affect ovulation in Muscovy ducks may be related to lipid metabolism, and the findings provide new insights into the mechanisms of ovulation in waterfowl and will contribute to a better understanding of changes in the waterfowl ovarian development regulatory network.
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Affiliation(s)
- Junyuan Lin
- College of Animal Science and Technology, Northwest A&F University, Xianyang, China
| | - Liyan Ge
- College of Animal Science and Technology, Northwest A&F University, Xianyang, China
| | - Xiang Mei
- College of Animal Science and Technology, Northwest A&F University, Xianyang, China
| | - Yurui Niu
- College of Animal Science and Technology, Northwest A&F University, Xianyang, China
| | - Chu Chen
- College of Animal Science and Technology, Northwest A&F University, Xianyang, China
| | - Shuisheng Hou
- College of Animal Science and Technology, Northwest A&F University, Xianyang, China
- Ministry of Agriculture Key Laboratory of Animal Genetics Breeding and Reproduction (Poultry), Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
- *Correspondence: Shuisheng Hou
| | - Xiaolin Liu
- College of Animal Science and Technology, Northwest A&F University, Xianyang, China
- Xiaolin Liu
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Abstract
Safety is the most important concern in the construction industry, and construction workers' attention allocation is closely associated with their hazard recognition and safety behaviors. The recent emergence of eye-tracking techniques allows researchers in construction safety to further investigate construction workers' visual attention allocation during hazard recognition. The existing eye-tracking studies in construction safety need to be comprehensively understood, to provide practical suggestions for future research and on-site safety management. This study aims to summarize previous studies on the application of eye-tracking techniques to the construction safety context through a systematic literature review. The literature search and study selection process included 22 eligible studies. Content analysis was then carried out from participant selection, device selection, task design, area of interest determination, feature extraction, data analysis, and main findings. Major limitations of the existing studies are identified, and recommendations for future research in theoretical development, experiment improvement, and data analysis method advancement are proposed to address these limitations. Even though the application of eye-tracking techniques in construction safety research is still in its early stage, it is worth future continuous attention because relevant discoveries would be of great significance to hazard control and safety management in the construction industry.
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Affiliation(s)
- Baoquan Cheng
- Department of Engineering Management, School of Civil Engineering, Central South University, Changsha, China
- Department of Architecture and Civil Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, China
- Anhui BIM Engineering Center, School of Civil Engineering, Anhui Jianzhu University, Hefei, China
| | - Xiaowei Luo
- Department of Architecture and Civil Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, China
| | - Xiang Mei
- Anhui BIM Engineering Center, School of Civil Engineering, Anhui Jianzhu University, Hefei, China
| | - Huihua Chen
- Department of Engineering Management, School of Civil Engineering, Central South University, Changsha, China
| | - Jianling Huang
- Department of Engineering Management, School of Civil Engineering, Central South University, Changsha, 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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Zhou C, Liu M, Mei X, Li Q, Zhang W, Deng P, He Z, Xi Y, Tong T, Pi H, Lu Y, Chen C, Zhang L, Yu Z, Zhou Z, He M. Histone hypoacetylation contributes to neurotoxicity induced by chronic nickel exposure in vivo and in vitro. Sci Total Environ 2021; 783:147014. [PMID: 34088129 DOI: 10.1016/j.scitotenv.2021.147014] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 01/18/2021] [Revised: 04/04/2021] [Accepted: 04/04/2021] [Indexed: 06/12/2023]
Abstract
Nickel (Ni) is a heavy metal that is both an environmental pollutant and a threat to human health. However, the effects of Ni on the central nervous system in susceptible populations have not been well established. In the present study, the neurotoxicity of Ni and its underlying mechanism were investigated in vivo and in vitro. Ni exposure through drinking water (10 mg Ni/L, 12 weeks) caused learning and memory impairment in mice. Reduced dendrite complexity was observed in both Ni-exposed mouse hippocampi and Ni-treated (200 μM, 72 h) primary cultured hippocampal neurons. The levels of histone acetylation, especially at histone H3 lysine 9 (H3K9ac), were reduced in Ni-exposed mouse hippocampi and cultured neurons. RNA sequencing and chromatin immunoprecipitation (ChIP) sequencing analyses revealed that H3K9ac-modulated gene expression were downregulated. Treatment with sodium butyrate, a histone deacetylase inhibitor, attenuated Ni-induced H3K9 hypoacetylation, neural gene downregulation and dendrite complexity reduction in cultured neurons. Sodium butyrate also restored Ni-induced memory impairment in mice. These results indicate that Ni-induced H3K9 hypoacetylation may be a contributor to the neurotoxicity of Ni. The finding that Ni disturbs histone acetylation in the nervous system may provide new insight into the health risk of chronic Ni exposure.
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Affiliation(s)
- Chao Zhou
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China
| | - Mengyu Liu
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China; Department of Medical Laboratory, General Hospital of the Central Theater Command of the Chinese People's Liberation Army, 430070 Wuhan, People's Republic of China
| | - Xiang Mei
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China
| | - Qian Li
- Department of Otolaryngology Head and Neck Surgery, Xinqiao Hospital, Army Medical University, 400037 Chongqing, People's Republic of China
| | - Wenjuan Zhang
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China
| | - Ping Deng
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China
| | - Zhixin He
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China
| | - Yu Xi
- Department of Environmental Medicine, School of Public Health, Department of Emergency Medicine, First Affiliated Hospital, School of Medicine, Zhejiang University, 310058 Hangzhou, People's Republic of China
| | - Tong Tong
- Department of Environmental Medicine, School of Public Health, Department of Emergency Medicine, First Affiliated Hospital, School of Medicine, Zhejiang University, 310058 Hangzhou, People's Republic of China
| | - Huifeng Pi
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China
| | - Yonghui Lu
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China
| | - Chunhai Chen
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China
| | - Lei Zhang
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China
| | - Zhengping Yu
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China.
| | - Zhou Zhou
- Department of Environmental Medicine, School of Public Health, Department of Emergency Medicine, First Affiliated Hospital, School of Medicine, Zhejiang University, 310058 Hangzhou, People's Republic of China.
| | - Mindi He
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China.
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Chu Y, Xu L, Gan L, Qiao W, Han J, Mei X, Guo H, Li W, Pei C, Gong H, Guo X. Efficient destruction of emerging contaminants in water by UV/S(IV) process with natural reoxygenation: Effect of pH on reactive species. Water Res 2021; 198:117143. [PMID: 33905975 DOI: 10.1016/j.watres.2021.117143] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [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: 02/11/2021] [Revised: 04/09/2021] [Accepted: 04/10/2021] [Indexed: 06/12/2023]
Abstract
UV/sulfite systems with oxygen have recently been considered as advanced oxidation processes in view of the participation of oxysulfur radicals. However, the contribution of •OH and the efficiency of destructing emerging contaminants (ECs) in water remain largely unclear. Here, the UV/S(IV) process was applied with natural reoxygenation to degrade two typical ECs, diethyl phthalate (DEP) and bisphenol A (BPA) showing different properties. Solution pH played the key role in determining the reactive species, and both DEP and BPA were more favorably degraded at more alkaline conditions with higher utilization efficiency of SO32-. Specifically, the H•, O2•-, •OH and SO3•- were identified at acidic condition, but the amount of •OH accumulated significantly with the elevation of pH. Competitive quenching experiments showed that eaq- and •OH dominated the degradation of DEP and BPA at alkaline condition, respectively. Besides, DEP showed higher quantum efficiency for the indirect photolysis and mineralization degree than that of BPA at pH 9.2 mainly due to the direct use of the primary photoproduct. The possible transformation mechanisms of S(IV) and mineralization routes of both pollutants were proposed. This study may provide new insights into the mechanisms involved in UV/S(IV) process and a promising alternative for efficient removal of ECs in water.
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Affiliation(s)
- Yingying Chu
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, Jiangsu, People's Republic of China
| | - Lijie Xu
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, Jiangsu, People's Republic of China.
| | - Lu Gan
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, Jiangsu, People's Republic of China.
| | - Weichuan Qiao
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, Jiangsu, People's Republic of China
| | - Jiangang Han
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, Jiangsu, People's Republic of China
| | - Xiang Mei
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, Jiangsu, People's Republic of China
| | - He Guo
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, Jiangsu, People's Republic of China
| | - Wei Li
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, Jiangsu, People's Republic of China
| | - Chun Pei
- Guangdong Province Key Laboratory of Durability for Marine Civil Engineering, School of Civil Engineering, Shenzhen University, Shenzhen, Guangdong 518060, People's Republic of China
| | - Han Gong
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou 510642, People's Republic of China
| | - Xuewen Guo
- Center of Modern Analysis, Nanjing University, Nanjing, 210093, People's Republic of China
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He S, Sun S, Lu J, Chen L, Mei X, Li L, Zeng Z, Zhong M, Xie L. The effects of the miR-21/SMAD7/TGF-β pathway on Th17 cell differentiation in COPD. Sci Rep 2021; 11:6338. [PMID: 33739023 PMCID: PMC7973755 DOI: 10.1038/s41598-021-85637-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 02/28/2021] [Indexed: 01/01/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a complex disease with multiple etiologies, while smoking is the most established one. The present study investigated the modulation of T-helper 17 (Th17) cell differentiation by the miR-21/Smad7/TGF-β pathway, and their roles in COPD. Lung tissues were obtained from lung cancer patients with or without COPD who underwent lobotomy and the levels of miR-21, TGF-β/Smad signaling molecules, RORγT, and other Th17-related cytokines were detected. Mouse COPD models were built by exposing both wild-type (WT) and miR-21-/- mice to cigarette smoke (CS) and cigarette smoke extract (CSE) intraperitoneal injection. Isolated primary CD4+ T cells were treated with either CS extract, miR-21 mimics or inhibitors, followed by measuring Th17 cells markers and the expression of TGF-β/Smad signaling molecules and RORγT. Increased levels of miR-21, Smad7, phosphorylated (p)-Smad2, p-Smad3, TGF-β, and Th17-related cytokines was detected in the lungs of COPD patients. Lung function in modeled WT mice, but not miR-21-/- ones, deteriorated and the number of inflammatory cells in the lung tissues increased compared to the control WT-mice. Moreover, primary CD4+ lymphocytes tend to differentiate into Th17 cells after the treatment with CSE or miR-21 mimics, and the expression of RORγT and the TGF-β/Smad signaling were all increased, however miR-21 inhibitors worked reversely. Our findings demonstrated that Th17 cells increased under COPD pathogenesis and was partially modulated by the miR-21/Smad7/TGF-β pathway.
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Affiliation(s)
- Shengyang He
- Department of Pulmonary and Critical Care Medicine, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Shenghua Sun
- Department of Pulmonary and Critical Care Medicine, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Junjuan Lu
- Department of Pulmonary and Critical Care Medicine, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Lili Chen
- Department of Pulmonary and Critical Care Medicine, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Xiang Mei
- Department of Pulmonary and Critical Care Medicine, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Liqiu Li
- Department of Pulmonary and Critical Care Medicine, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Zhengpeng Zeng
- Department of Pulmonary and Critical Care Medicine, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Mubin Zhong
- Department of Pulmonary and Critical Care Medicine, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Lihua Xie
- Department of Pulmonary and Critical Care Medicine, The Third Xiangya Hospital of Central South University, Changsha, China.
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Xing H, Fei X, Zheng B, Zheng X, Dang X, Zhang H, Tian F, Mei X, Hu X. Aptamer-Facilitated Design of Gold Nanoparticle-Based Logic Gates for Cyromazine and Melamine Detection in Milk. Aust J Chem 2021. [DOI: 10.1071/ch21011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In this paper, we developed a simply designed detection method for logic gates by using aptamers, cetyltrimethyl ammonium bromide, together with melamine and cyromazine to control the aggregation and dispersion of gold nanoparticles (AuNPs). First, either melamine or cyromazine can induce the aggregation of AuNPs, supporting an OR gate to detect whether they were present or not. Second, based on the fact that aptamer T31 can specifically bind with melamine, preventing the aggregation of AuNPs, an improved INHIBIT gate was also fabricated to find whether there was melamine. It has a detection limit of 0.12ppm by the naked eye for the detection of melamine, and the limit of detection (LOD) by spectrophotometer is 2.2ppb. Third, with the adsorption of aptamer Tcy1 on AuNPs and the strong coordination of Tcy1 with cyromazine, the addition of cyromazine and CTAB immediately resulted in the aggregation of AuNPs, giving rise to an AND gate. This gate has a detection limit of 0.17ppm by the naked eye and the limit of detection (LOD) is 9.0ppb by spectrophotometer. The system provided a good platform for the development of functional logic systems.
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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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Liu T, Huang H, Liu X, Yang Y, Mei X, Feng L. Personalized warfarin treatment based on the PITX2 single nucleotide polymorphism rs6843082. Int J Clin Exp Pathol 2020; 13:2831-2839. [PMID: 33284871 PMCID: PMC7716133] [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] [Received: 06/20/2020] [Accepted: 09/01/2020] [Indexed: 06/12/2023]
Abstract
OBJECTIVE To explore the effect of PITX2 gene rs6843082 single nucleotide polymorphism on the efficacy and adverse reactions of warfarin in patients with atrial fibrillation and hypertension, and to provide a theoretical basis for individualized warfarin treatment. METHODS Data on 97 patients with atrial fibrillation and hypertension treated in our hospital were collected from September, 2018 to December, 2019. PCR and SNP genotyping techniques were used to measure the genotype at the rs6843082 locus (pituitary homeobox 2, PITX2) using DNA from the peripheral blood cells of all patients. We compared the efficacy of warfarin and the incidence of adverse reactions in patients of different genotypes. RESULTS (1) Among 97 subjects, 58 cases (59.79%), 32 cases (32.99%) and 7 cases (7.22%) of PITX2 (rs6843082) genotypes GG, GA and AA were identified respectively. The G and A allele frequencies were 76.29% and 23.71%, respectively. (2) After all patients took warfarin to achieve the standard, the GA group and AA group's time to achieve the standard was significantly longer than that of the GG group (P<0.05). The difference was not statistically significant among groups (P>0.05). Compared with the GG group, the maintenance dose of the AA group was increased (P<0.05). (3) Compared with the GG and the GA group, the probability of bleeding events was higher in the AA group (P<0.05). (4) There was no difference in left ventricular end diastolic volume (LVEDV) and left ventricular end systolic volume (LVESV) group among GG, GA and AA groups (P>0.05). Compared with the GG group, left ventricular ejection fraction (LVEF) of the AA group was significantly reduced (P<0.05). (5) The mortality rates of the GG, GA, and AA groups were 15.51%, 12.50% and 22.57%, respectively, at the end of 120 d follow-up. CONCLUSION Our findings show that rs6843082 SNP leads to the warfarin dose response differences that were observed in patients with atrial fibrillation and hypertension. Genotyping patients for rs6843082 before initiating warfarin treatment may optimize the treatment response and reduce bleeding incidence.
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Affiliation(s)
- Tianhua Liu
- Department of Cardiology, Shidong Hospital Shanghai 200000, China
| | - Hongman Huang
- Department of Cardiology, Shidong Hospital Shanghai 200000, China
| | - Xinbing Liu
- Department of Cardiology, Shidong Hospital Shanghai 200000, China
| | - Yuya Yang
- Department of Cardiology, Shidong Hospital Shanghai 200000, China
| | - Xiang Mei
- Department of Cardiology, Shidong Hospital Shanghai 200000, China
| | - Liuliu Feng
- Department of Cardiology, Shidong Hospital Shanghai 200000, China
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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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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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Mei X, Wang Y, Yang Y, Xu L, Wang Y, Guo Z, Shen W, Zhang Z, Ma M, Ding Y, Xiao Y, Yang X, Yin C, Guo W, Xu K, Wang C. Enhanced treatment of nitroaniline-containing wastewater by a membrane-aerated biofilm reactor: Simultaneous nitroaniline degradation and nitrogen removal. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117078] [Citation(s) in RCA: 6] [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] [Indexed: 12/11/2022]
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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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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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25
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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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26
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Mei X, Ding Y, Wang Y, Yang Y, Xu L, Wang Y, Shen W, Zhang Z, Ma M, Guo Z, Xiao Y, Yang X, Zhou B, Xu K, Guo W, Wang C. A novel membrane-aerated biofilter for the enhanced treatment of nitroaniline wastewater: Nitroaniline biodegradation performance and its influencing factors. Bioresour Technol 2020; 307:123241. [PMID: 32244078 DOI: 10.1016/j.biortech.2020.123241] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 03/18/2020] [Accepted: 03/20/2020] [Indexed: 06/11/2023]
Abstract
Nitroaniline (NA) wastewater is known to be highly toxic and biodegradation-resistant. Based on the principles of molecular oxygen supply and biofilm formation, a novel membrane-aerated biofilter (MABF) combining membrane aeration with a biofilter was established for the first time to treat NA wastewater containing the same concentrations of p-nitroaniline (PNA) and o-nitroaniline (ONA). The NA wastewater treatment performance of the MABF was investigated, and the NA biodegradation characteristics were evaluated. When the influent NA concentration was 120 mg/L, the PNA and ONA removal rates reached 100% and 86.56%, respectively. The NA removal loading reached 111.62 g/m3·d, and the total nitrogen (TN) removal rate reached 82.97%. The synergistic effects of the diverse microorganisms in the membrane-aerated and nonaerated zones of the MABF enhanced the removal of NA and nitrogen. This MABF is an economically efficient and environmentally friendly technology for treating wastewater containing toxic and hazardous organic compounds.
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Affiliation(s)
- Xiang Mei
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China.
| | - Yang Ding
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Yihan Wang
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Yang Yang
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Lijie Xu
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Yong Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Wentian Shen
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Zimiao Zhang
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Mengyuan Ma
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Zhongwei Guo
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Yanyan Xiao
- Nanjing Haiyi Environmental Protection Engineering Co., Ltd., Nanjing 211200, China
| | - Xu Yang
- Nanjing Haiyi Environmental Protection Engineering Co., Ltd., Nanjing 211200, China
| | - Baochang Zhou
- Nanjing RGE Membrane Tech Co., Ltd., Nanjing 210012, China
| | - Kang Xu
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Wei Guo
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Chaofan Wang
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
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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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Xu L, Zhang X, Han J, Gong H, Meng L, Mei X, Sun Y, Qi L, Gan L. Degradation of emerging contaminants by sono-Fenton process with in situ generated H 2O 2 and the improvement by P25-mediated visible light irradiation. J Hazard Mater 2020; 391:122229. [PMID: 32044626 DOI: 10.1016/j.jhazmat.2020.122229] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 01/20/2020] [Accepted: 02/03/2020] [Indexed: 06/10/2023]
Abstract
Developing advanced treatment methods to minimize the release of emerging contaminants to natural water has become a matter of considerable interest. Sono-Fenton process was investigated to degrade bisphenol A (BPA) and sulfadiazine (SDZ). The H2O2 generated in situ was used as the exclusive source. Results showed that, the 400 kHz ultrasound is more efficient in creating homogeneous sono-Fenton than the 20 kHz apparatus due to the higher production of OH. Influence of Fe2+ was more remarkable on the degradation of hydrophilic SDZ, and its degradation kinetics was well fitted by two-stage kinetic model. However, the Fe2+ and H2O2 were unproductively wasted, which could not be improved by changing the dosing modes of Fe2+. The presence of P25 under visible light irradiation could significantly accelerate SDZ degradation at small amount of iron precursors, mainly via promoting the Fe2+/Fe3+ cycling by the photoelectrons. Moreover, SDZ degradation in sono-Fenton process was significantly inhibited at pH > 7, but the inhibition was very weak in P25-assisted sono-Fenton process. The presence of P25 also improved the mineralization. Three primary degradation pathways of SDZ degradation were proposed, including the attacking of the benzene ring, the oxidation of the amino group and the extrusion of SO2.
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Affiliation(s)
- Lijie Xu
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, Jiangsu, People's Republic of China
| | - Xiaomeng Zhang
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, Jiangsu, People's Republic of China
| | - Jiangang Han
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, Jiangsu, People's Republic of China.
| | - Han Gong
- College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, Guangdong, People's Republic of China
| | - Liang Meng
- College of Resources and Environmental Science, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Xiang Mei
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, Jiangsu, People's Republic of China
| | - Yang Sun
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, Jiangsu, People's Republic of China
| | - Lanyue Qi
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, Jiangsu, People's Republic of China
| | - Lu Gan
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, Jiangsu, People's Republic of China.
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29
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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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Xu L, Meng L, Zhang X, Mei X, Guo X, Li W, Wang P, Gan L. Promoting Fe 3+/Fe 2+ cycling under visible light by synergistic interactions between P25 and small amount of Fenton reagents. J Hazard Mater 2019; 379:120795. [PMID: 31238212 DOI: 10.1016/j.jhazmat.2019.120795] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Revised: 05/14/2019] [Accepted: 06/18/2019] [Indexed: 06/09/2023]
Abstract
Merits of adding P25 to homogeneous photo-Fenton-like process (ph-F) were evaluated under visible light using Bisphenol A (BPA) as a model pollutant. Interactions between P25 and Fe3+/H2O2 were emphasized. Results show that adsorption of Fe(III) on P25 produced redshift of light absorption, and interactions between P25 and H2O2 promoted photoelectron generation, effectively introducing visible light into ph-F. The visible-light-driven ph-F demonstrated adequate performance at high Fe3+/H2O2 dosage, while P25 addition showed significant acceleration of BPA degradation with saving amount of Fe3+/H2O2. The mechanism was confirmed to be enhanced Fe3+/Fe2+ cycling by photo-electrons, particularly pronounced at low [Fe(III)]. Additionally, H2O2 was utilized more efficiently in P25-ph-F than that in ph-F by diminishing the radical scavenging role of H2O2 at lower [Fe(III)]. Kinetics and ESR analysis supported this mechanism. Compared to ph-F, the P25-ph-F process also demonstrated stronger potentials in degrading BPA at high concentrations and better mineralization capability with reduced Fe3+/H2O2 reagents. The sustainability of P25-ph-F was also examined in regard to its advantage under sunlight and the strong recyclable and reusable capability. BPA decomposition was dominated by •OH attack at both the aromatic ring and the connecting carbon, and P25-ph-F was more competent in transforming the primary intermediates than ph-F.
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Affiliation(s)
- Lijie Xu
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, Jiangsu, People's Republic of China.
| | - Liang Meng
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, Jiangsu, People's Republic of China
| | - Xiaoxiao Zhang
- State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, People's Republic of China
| | - Xiang Mei
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, Jiangsu, People's Republic of China
| | - Xuewen Guo
- Center of Modern Analysis, Nanjing University, Nanjing, 210093, People's Republic of China
| | - Wei Li
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, Jiangsu, People's Republic of China
| | - Ping Wang
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, Jiangsu, People's Republic of China
| | - Lu Gan
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, Jiangsu, People's Republic of China.
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31
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Mei X, Chen Y, Fang C, Xu L, Li J, Bi S, Liu J, Wang Y, Li P, Guo Z, Qin H, Gu J, Xiao Y, Yang X, Zhou B, Zhang Z. Acetonitrile wastewater treatment enhanced by a hybrid membrane-aerated bioreactor containing aerated and non-aerated zones. Bioresour Technol 2019; 289:121754. [PMID: 31323714 DOI: 10.1016/j.biortech.2019.121754] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 05/01/2019] [Revised: 06/30/2019] [Accepted: 07/01/2019] [Indexed: 06/10/2023]
Abstract
Acetonitrile (ACN) is a very volatile, toxic and nitrogen-rich organic compound. To enhance ACN wastewater treatment, a novel hybrid membrane-aerated bioreactor (MAB) containing aerated and non-aerated zones was established. A polypropylene hollow fiber membrane module (HF) and a silicone rubber membrane module (SR) were separately used as the bubble-free aeration diffuser and the biofilm carrier, and the non-aerated zones of these two types of reactors were packed with ceramsite. When the influent ACN loading was 1.200 kg/m3·d, under aeration pressures of 20 kPa in the HF-MAB and 40 kPa in the SR-MAB, ACN removal loadings of 1.116 kg/m3·d and 1.004 kg/m3·d, respectively, were achieved, and the TN (total nitrogen) removal loadings were 0.267 kg/m3·d and 0.246 kg/m3·d, respectively. In the MABs, different stratified biofilm structures of the two zones and the diffusion and counter-diffusion of oxygen synergistically promoted ACN degradation, nitrification and denitrification.
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Affiliation(s)
- Xiang Mei
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China.
| | - Ying Chen
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Chenhong Fang
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Lijie Xu
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Junhui Li
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Shuqi Bi
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Juan Liu
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Yong Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Pengpeng Li
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Zhongwei Guo
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Hailing Qin
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Jiawei Gu
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Yanyan Xiao
- Nanjing Haiyi Environmental Protection Engineering Co., Ltd., Nanjing 211200, China
| | - Xu Yang
- Nanjing Haiyi Environmental Protection Engineering Co., Ltd., Nanjing 211200, China
| | - Baochang Zhou
- Nanjing RGE Membrane Tech Co., Ltd., Nanjing 210012, China
| | - Ze Zhang
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, 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 L, Liu T, Yang Y, Xiao W, Shi J, Mei X, Tian S, Liu X, Huang H, Bai Y. Metformin promotes proliferation and suppresses apoptosis in Ox-LDL stimulated macrophages by regulating the miR-34a/Bcl2 axis. RSC Adv 2019; 9:14670-14676. [PMID: 35516319 PMCID: PMC9064147 DOI: 10.1039/c9ra00705a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Accepted: 04/22/2019] [Indexed: 12/25/2022] Open
Abstract
Background: Metformin, an antidiabetic drug, has been reported to be involved in atherosclerosis (AS). In this study, the effects of metformin on oxidized low-density lipoprotein (Ox-LDL)-induced macrophage apoptosis were investigated, and the mechanisms involved in this process were examined. Methods: qRT-qPCR analysis was performed to detect the expression of miR-34a in macrophage cells. Cell proliferation was determined by MTT assays and colony formation assays. Cell apoptosis was assessed by the detection of apoptotic rate and caspase 3 activity. Western blot analysis was performed to evaluate the expression of Bcl2 protein. Results: Metformin treatment promoted proliferation and suppressed apoptosis in macrophages following the treatment of oxidized low-density lipoprotein (Ox-LDL). Metformin could inhibit miR-34a in macrophages. miR-34a overexpression could reverse the effect of metformin on proliferation and apoptosis in Ox-LDL-treated macrophages. Moreover, metformin could increase the expression of the miR-34a target gene Bcl2. Furthermore, metformin treatment exerted the pro-proliferation and anti-apoptosis effect through regulating Bcl2 expression in Ox-LDL-stimulated macrophages. Conclusion: Metformin facilitated proliferation and inhibited apoptosis of macrophages treated with Ox-LDL through the miR-34a/Bcl2 axis, indicating the potential value of metformin in AS therapy.
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Affiliation(s)
- Liuliu Feng
- Department of Cardiology, Shidong Hospital Yangpu District Shanghai 200438 China +86-021-25066666-13101
| | - Tianhua Liu
- Department of Cardiology, Shidong Hospital Yangpu District Shanghai 200438 China +86-021-25066666-13101
| | - Yuya Yang
- Department of Cardiology, Shidong Hospital Yangpu District Shanghai 200438 China +86-021-25066666-13101
| | - Wenying Xiao
- Department of Cardiology, Shidong Hospital Yangpu District Shanghai 200438 China +86-021-25066666-13101
| | - Jun Shi
- Department of Cardiology, Shidong Hospital Yangpu District Shanghai 200438 China +86-021-25066666-13101
| | - Xiang Mei
- Department of Cardiology, Shidong Hospital Yangpu District Shanghai 200438 China +86-021-25066666-13101
| | - Songmei Tian
- Department of Cardiology, Shidong Hospital Yangpu District Shanghai 200438 China +86-021-25066666-13101
| | - Xinbing Liu
- Department of Cardiology, Shidong Hospital Yangpu District Shanghai 200438 China +86-021-25066666-13101
| | - Hongman Huang
- Department of Cardiology, Shidong Hospital Yangpu District Shanghai 200438 China +86-021-25066666-13101
| | - Yanyan Bai
- Department of Cardiology, Shidong Hospital Yangpu District Shanghai 200438 China +86-021-25066666-13101
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Mei X, Liu J, Guo Z, Li P, Bi S, Wang Y, Yang Y, Shen W, Wang Y, Xiao Y, Yang X, Zhou B, Liu H, Wu S. Simultaneous p-nitrophenol and nitrogen removal in PNP wastewater treatment: Comparison of two integrated membrane-aerated bioreactor systems. J Hazard Mater 2019; 363:99-108. [PMID: 30308370 DOI: 10.1016/j.jhazmat.2018.09.072] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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: 07/05/2018] [Revised: 09/23/2018] [Accepted: 09/26/2018] [Indexed: 06/08/2023]
Abstract
The chemical p-nitrophenol (PNP) is a priority pollutant, and PNP wastewater is highly toxic and resistant to biodegradation. The traditional physical and chemical methods (adsorption, extraction, and oxidation) for treating PNP wastewater have the disadvantages of complicated processes, high costs and secondary pollution generation. In this study, two integrated membrane-aerated bioreactor systems (RA and RB) with anoxic and aerated zones were constructed to enhance PNP biodegradation. The results showed that a helical silicone rubber membrane module displayed a high oxygen supply rate under a low membrane aeration pressure, and the hydraulic flow state of the reactor approached ideal mixing. At an influent PNP concentration of 500 mg/L, the average removal rates of PNP, chemical oxygen demand (COD) and total nitrogen (TN) reached 95.86%, 89.77%, and 94.81%, respectively, for RA and 89.48%, 74.26% and 64.78%, respectively, for RB, indicating efficient simultaneous PNP and nitrogen removal. Compared with that of RB, the pre-anoxic zone in RA not only performed detoxification pretreatment but also enhanced PNP degradation and denitrification effects, which relieved the biological treatment burden of the subsequent aerated zone. Based on these comprehensive analyses of reactor performance, the hydroquinone pathway might be the main route in the aerobic degradation of PNP.
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Affiliation(s)
- Xiang Mei
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China.
| | - Juan Liu
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Zhongwei Guo
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Pengpeng Li
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Shuqi Bi
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Yong Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Yang Yang
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Wentian Shen
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Yihan Wang
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Yanyan Xiao
- Nanjing Haiyi Environmental Protection Engineering Co., Ltd., Nanjing 211200, China
| | - Xu Yang
- Nanjing Haiyi Environmental Protection Engineering Co., Ltd., Nanjing 211200, China
| | - Baochang Zhou
- Nanjing RGE Membrane Tech Co., Ltd., Nanjing 210012, China
| | - Hao Liu
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Shuai Wu
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, 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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Fei BL, Zhong JK, Deng NP, Wang JH, Liu QB, Li YG, Mei X. A novel 3D heteropoly blue type photo-Fenton-like catalyst and its ability to remove dye pollution. Chemosphere 2018; 197:241-250. [PMID: 29353674 DOI: 10.1016/j.chemosphere.2018.01.053] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [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: 08/04/2017] [Revised: 01/09/2018] [Accepted: 01/12/2018] [Indexed: 06/07/2023]
Abstract
A environment-friendly 3D inorganic heteropoly blue (HPB) Ba2Na2 [HPWV4WVI8O40]·26H2O was directly synthesized by hydrothermal method and characterized by means of ICP, IR, XPS, X-ray single crystal and X-ray powder diffraction. It was an efficient heterogeneous photo-Fenton-like catalyst to degrade anionic dye methyl orange under visible light irradiation. It removed cationic dyes methylene blue in neutral environment and rhodamine B in acidic condition via flocculation. The removal efficiency of methylene blue and rhodamine B by flocculation was more than 95%. Moreover, it could degrade methyl orange and flocculate rhodamine B at the same time. For MO and MO-RhB solutions, the degradation rates of MO in 60 min were 85.5% and 49.1%, respectively. Furthermore, the possible pathways for the production of active species in the MO degradation reaction were discussed. This is the first HPB constructed with 4e-reduced phosphotungstate, Ba and Na ions, having the properties of photo-Fenton-like catalyst and flocculant.
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Affiliation(s)
- Bao-Li Fei
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, China; Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210093, China; College of Science, Nanjing Forestry University, Nanjing, 210037, China; Institute Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, 130024, China; College of Biology and Environment, Nanjing Forestry University, Nanjing, 210037, China.
| | - Jian-Kai Zhong
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, China; Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210093, China; College of Science, Nanjing Forestry University, Nanjing, 210037, China; Institute Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, 130024, China; College of Biology and Environment, Nanjing Forestry University, Nanjing, 210037, China
| | - Ni-Ping Deng
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, China; Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210093, China; College of Science, Nanjing Forestry University, Nanjing, 210037, China; Institute Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, 130024, China; College of Biology and Environment, Nanjing Forestry University, Nanjing, 210037, China
| | - Jiang-Hong Wang
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, China; Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210093, China; College of Science, Nanjing Forestry University, Nanjing, 210037, China; Institute Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, 130024, China; College of Biology and Environment, Nanjing Forestry University, Nanjing, 210037, China
| | - Qing-Bo Liu
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, China; Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210093, China; College of Science, Nanjing Forestry University, Nanjing, 210037, China; Institute Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, 130024, China; College of Biology and Environment, Nanjing Forestry University, Nanjing, 210037, China
| | - Yang-Guang Li
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, China; Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210093, China; College of Science, Nanjing Forestry University, Nanjing, 210037, China; Institute Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, 130024, China; College of Biology and Environment, Nanjing Forestry University, Nanjing, 210037, China
| | - Xiang Mei
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, China; Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210093, China; College of Science, Nanjing Forestry University, Nanjing, 210037, China; Institute Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, 130024, China; College of Biology and Environment, Nanjing Forestry University, Nanjing, 210037, China
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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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Fei BL, Deng NP, Wang JH, Liu QB, Long JY, Li YG, Mei X. A heteropoly blue as environmental friendly material: An excellent heterogeneous Fenton-like catalyst and flocculent. J Hazard Mater 2017; 340:326-335. [PMID: 28728111 DOI: 10.1016/j.jhazmat.2017.07.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 07/08/2017] [Accepted: 07/10/2017] [Indexed: 06/07/2023]
Abstract
The first 3D heteropoly blue Ba2Na4[SiW4VW8VIO40]·19H2O (1) as heterogeneous Fenton-like catalyst and flocculent was hydrothermally synthesized and fully characterized by various methods 1 was an efficient Fenton-like catalyst for degradation of phenol with degradation rate of 92.1% (visible light irradiation), and 89.0% (no light) in 90min, respectively. The degradation efficiency of anionic dye methyl orange was 97.0% in 5min, when 1 was used as photo-Fenton-like catalyst under visible light. And 1 was a nice flocculent for cationic dyes methylene blue and rhodamine B, the removal rates were both above 95%. Moreover, 1 could degrade methyl orange and flocculate rhodamine B at the same time, but the degradation rate decreased from 100% to 77.5% in 60min, while the flocculation of RhB in 10min was not affected.
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Affiliation(s)
- Bao-Li Fei
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China; Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, China.
| | - Ni-Ping Deng
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Jiang-Hong Wang
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Qing-Bo Liu
- College of Science, Nanjing Forestry University, Nanjing 210037, China
| | - Jian-Ying Long
- College of Science, Nanjing Forestry University, Nanjing 210037, China
| | - Yang-Guang Li
- Institute Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China.
| | - Xiang Mei
- College of Biology and Environment, Nanjing Forestry University, Nanjing 210037, China.
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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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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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Yan Y, Guan C, Du S, Zhu W, Ji Y, Su N, Mei X, He D, Lu Y, Zhang C, Xing XH. Effects of Enzymatically Depolymerized Low Molecular Weight Heparins on CCl 4-Induced Liver Fibrosis. Front Pharmacol 2017; 8:514. [PMID: 28871223 PMCID: PMC5566566 DOI: 10.3389/fphar.2017.00514] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [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: 05/27/2017] [Accepted: 07/21/2017] [Indexed: 12/17/2022] Open
Abstract
With regard to identifying the effective components of LMWH drugs curing hepatic fibrosis disease, we carried out a comparative study on the efficacy of enzymatically depolymerized LMWHs on CCl4 induced mouse liver fibrosis. The results showed that the controlled enzymatic depolymerization conditions resulted in LMWHs with significantly different activities. The LMWH product depolymerized by Heparinase I (I-11) with a Mw of 7160, exhibited a significant advantage in reducing the liver inflammation by suppressing TNF-α and IL-1β secretion, and minimizing hepatic fibrogenesis. The products prepared by only Heparinase II (II-11), and combined Heparinase III and II (III-II-5) showed limited positive effect on hepatic inflammation and fibrosis. On the contrary, the products by combined Heparinase III and I (III-I-9, III-I-5) showed no effect or stimulation effect on the hepatic fibrogenesis. Our results provided the basis for structure-activity relationship insight for inhibition of liver fibrosis activities of LMWHs, which might have significant implications for generic anti-fibrosis disease drug development.
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Affiliation(s)
- Yishu Yan
- MOE Key Laboratory of Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua UniversityBeijing, China
| | - Changge Guan
- MOE Key Laboratory of Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua UniversityBeijing, China
| | - Shanshan Du
- MOE Key Laboratory of Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua UniversityBeijing, China
| | - Wenming Zhu
- MOE Key Laboratory of Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua UniversityBeijing, China
| | - Yang Ji
- MOE Key Laboratory of Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua UniversityBeijing, China
| | - Nan Su
- MOE Key Laboratory of Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua UniversityBeijing, China
| | | | - Dong He
- MOE Key Laboratory of Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua UniversityBeijing, China
| | - Yuan Lu
- MOE Key Laboratory of Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua UniversityBeijing, China
| | - Chong Zhang
- MOE Key Laboratory of Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua UniversityBeijing, China.,Centre for Synthetic and Systems Biology, Tsinghua UniversityBeijing, China
| | - Xin-Hui Xing
- MOE Key Laboratory of Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua UniversityBeijing, China.,Centre for Synthetic and Systems Biology, Tsinghua UniversityBeijing, China
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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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Yan Y, Du S, Ji Y, Su N, Wang Y, Mei X, Zhu W, He D, Lu Y, Zhang C, Xing XH. Discovery of enzymatically depolymerized heparins capable of treating Bleomycin-induced pulmonary injury and fibrosis in mice. Carbohydr Polym 2017; 174:82-88. [PMID: 28821136 DOI: 10.1016/j.carbpol.2017.05.102] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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: 04/14/2017] [Revised: 05/19/2017] [Accepted: 05/22/2017] [Indexed: 12/18/2022]
Abstract
Heparin has recently been shown to slow down idiopathic pulmonary fibrosis (IPF) process and improve survival of patients in some cases. To improve the anti-IPF function while minimizing their side effects, we developed heparin libraries with different structures depolymerized by single or combined heparinases, and systematically screened the efficacy of the different heparins for treatment of Bleomycin-induced pulmonary injury and fibrosis using mice model. Then we characterized the structural properties of the components capable of treating pulmonary injury and fibrosis by use of chip-based amide hydrophilic interaction chromatography (HILIC)-fourier transform (FT)-ESI-MS, polyacrylamide gel electrophoresis (PAGE), and high performance liquid chromatography (HPLC). Our results showed that the depolymerized heparins with relative higher molecular weight (I-2 and III-2) by the respective heparinase I and III protected mice from the induced pulmonary injury and fibrosis. In addition, the selected depolymerized heparins inhibited high-mobility group protein B1 (HMGB-1) expression, prevented E-cadhesin from downregulation, and reduced fibroblasts accumulation in the mouse lung tissue. Our study suggested that the depolymerized heparins of I-2 and III-2 with the most significant efficacy might target several pathways in alleviating the induced pulmonary fibrosis.
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Affiliation(s)
- Yishu Yan
- MOE Key Laboratory of Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China.
| | - Shanshan Du
- MOE Key Laboratory of Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China.
| | - Yang Ji
- MOE Key Laboratory of Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China.
| | - Nan Su
- MOE Key Laboratory of Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China.
| | - Yi Wang
- MOE Key Laboratory of Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China; School of Medicine, Tsinghua University, Beijing 100084, People's Republic of China.
| | - Xiang Mei
- Bio-Cell Co. Ltd, Beijing 100000, People's Republic of China
| | - Wenming Zhu
- MOE Key Laboratory of Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China.
| | - Dong He
- MOE Key Laboratory of Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China.
| | - Yuan Lu
- MOE Key Laboratory of Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China.
| | - Chong Zhang
- MOE Key Laboratory of Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China; Centre for Synthetic and Systems Biology, Tsinghua University, Beijing 100084, People's Republic of China.
| | - Xin-Hui Xing
- MOE Key Laboratory of Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China; Centre for Synthetic and Systems Biology, Tsinghua University, Beijing 100084, People's Republic of China.
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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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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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