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Liu R, Zheng M, Wang J, Cui H, Li Q, Liu J, Zhao G, Wen J. Effects of genomic selection for intramuscular fat content in breast muscle in Chinese local chickens. Anim Genet 2018; 50:87-91. [PMID: 30444013 DOI: 10.1111/age.12744] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/08/2018] [Indexed: 01/19/2023]
Abstract
Improvements in living standards have resulted in consumers having higher expectations for chicken meat quality. This is particularly true in Asia, where there is high consumer preference for local breeds. Nothing is presently known about the effectiveness of using genomic selection (GS) strategies in chickens to genetically improve meat quality traits that cannot be measured in living potential parents. In this study, 724 Beijing-You chickens were used as a training population; all were genotyped using Illumina 60K SNP chips, and intramuscular fat content in breast muscle (IMFbr ) was measured. Birds in the GS line were selected based on genomic estimated breeding values, IMFbr being the sole trait. Genetic progress in one generation was compared to that from conventional family-based selection, and both were evaluated against random-bred controls. Results showed that relative to the random-bred controls, IMF percentage was improved 9.62% using GS, comparable to the 10.38% improvement using family-based selection. We quantified the effectiveness of GS when applied to a meat quality trait with low heritability in chickens. We plan to introduce custom SNP chips, appropriate for native chicken breeds in China, to assist in applying GS in local breeding and accelerate genetic gain.
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Jiao J, Jin Y, Zheng M, Zhang H, Yuan M, Lv Z, Odhiambo W, Yu X, Zhang P, Li C, Ma Y, Ji Y. AID and TET2 co-operation modulates FANCA expression by active demethylation in diffuse large B cell lymphoma. Clin Exp Immunol 2018; 195:190-201. [PMID: 30357811 DOI: 10.1111/cei.13227] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/07/2018] [Indexed: 01/06/2023] Open
Abstract
Diffuse large B cell lymphoma (DLBCL) is traced to a mature B malignance carrying abnormal activation-induced cytidine deaminase (AID) expression. AID activity initially focuses on deamination of cytidine to uracil to generate somatic hypermutation and class-switch recombination of the immunoglobulin (Ig), but recently it has been implicated in DNA demethylation of genes required for B cell development and proliferation in the germinal centre (GC). However, whether AID activity on mutation or demethylation of genes involves oncogenesis of DLBCL has not been well characterized. Our data demonstrate that the proto-oncogene Fanconi anaemia complementation group A (FANCA) is highly expressed in DLBCL patients and cell lines, respectively. AID recruits demethylation enzyme ten eleven translocation family member (TET2) to bind the FANCA promoter. As a result, FANCA is demethylated and its expression increases in DLBCL. On the basis of our findings, we have developed a new therapeutic strategy to significantly inhibit DLBCL cell growth by combination of the proteasome inhibitor bortezomib with AID and TET2 depletion. These findings support a novel mechanism that AID has a crucial role in active demethylation for oncogene activation in DLBCL.
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Zheng M, Harding K, Kane R. HELPING TENANTS STAY IN LOW-INCOME SENIOR HOUSING: PREDICTIVE VALIDITY OF THE LIVE WELL AT HOME RAPID SCREEN. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.1213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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79
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Zheng M, Zhang M, Li C, Wang X, Zhong N, Zuo X, Li Y. Gastrointestinal: "Ghost gland" in probe-based confocal laser endomicroscopy for diagnosing ischemic colitis: A novel approach. J Gastroenterol Hepatol 2018; 33:1818. [PMID: 30022516 DOI: 10.1111/jgh.14314] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Accepted: 06/04/2018] [Indexed: 12/09/2022]
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80
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Wang M, Zhong H, Dai L, Wang L, Shen P, Wang Y, Jiang D, Zheng M, Wu D, Shi F, Wang K, Li C, Chen H, Dong Y, Shi W, Wang K, Yao M. P3.03-07 Co-Occurring Genomic Alterations in EGFR Altered Chinese Lung Adenocarcinoma Patients. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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81
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Wu Y, Zhou Q, Zhang X, Tu H, Gan B, Wang B, Xu C, Chen H, Zheng M, Wang Z, Bai X, Sun Y, Myers A, Lv X, Chakraborti Y, Zhao S, Yang J., Callister J. JCSE01.09 Cluster Trial: Ph2 Biomarker-Integrated Study of Single Agent Alpelisib, Capmatinib, Ceritinib and Binimetinib in advNSCLC. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.217] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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82
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Li Y, Jiang B, Zheng M, Tu H, Yang J., Zhang X, Ye J, Zhou Q, Zhong W, Zhang C, Chuai S, Wu Y. P1.01-55 Unique Genetic Profiles from Cerebrospinal Fluid Could Predict Survival of EGFR-Mutant NSCLC with Leptomeningeal Metastases. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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83
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Zhong H, Wang Y, Hu J, Guo J, Shang Y, Zheng M, Zhao J, Li Y, Xie J, Guo H, Hu J, Wang A, Wang W, Shi W, Wang K, Yao M. P3.12-14 Genomic Profiling of Chinese Small Cell Lung Cancer and the Implications for Therapy. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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84
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Yoshimoto N, Ujiie H, Zheng M, Iwata H, Kosumi H, Hata H, Shimizu H. Bullous pemphigoid with the deposition of IgG2 but not IgG1, IgG3 nor IgG4 autoantibodies at the basement membrane zone. J Eur Acad Dermatol Venereol 2018; 32:e344-e346. [DOI: 10.1111/jdv.14920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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85
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Wang J, Li H, Ren Y, Yao Y, Hu J, Zheng M, Ding Y, Chen YY, Shen Y, Wang LL, Zhu Y. Local Delivery of β-Elemene Improves Locomotor Functional Recovery by Alleviating Endoplasmic Reticulum Stress and Reducing Neuronal Apoptosis in Rats with Spinal Cord Injury. Cell Physiol Biochem 2018; 49:595-609. [PMID: 30165357 DOI: 10.1159/000492996] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Accepted: 08/20/2018] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS Spinal cord injury (SCI) is a serious global problem that leads to permanent motor and sensory deficits. This study explores the anti-apoptotic and neuroprotective effects of the natural extract β-elemene in vitro and in a rat model of SCI. METHODS CCK-8 assay was used to evaluate cell viability and lactate dehydrogenase assay was used to evaluate cytotoxicity. A model of cell injury was established using cobalt chloride. Apoptosis was evaluated using a fluorescence-activated cell sorting assay of annexin V-FITC and propidium iodide staining. A rat SCI model was created via the modified Allen's method and Basso, Beattie, and Bresnahan (BBB) scores were used to assess locomotor function. Inflammatory responses were assessed via enzyme-linked immunosorbent assay (ELISA). Apoptotic and surviving neurons in the ventral horn were respectively observed via terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) staining and Nissl staining. Western blotting was used to measure protein expression. RESULTS β-elemene (20 μg/ml) promoted cell viability by activating phosphorylation of the PI3K-AKT-mTOR pathway. β-elemene reduced CoCl2-induced cellular death and apoptosis by suppressing the expression levels of CHOP, cleaved-caspase 12, 78-kilodalton glucose-regulated protein, cleaved-caspase 3, and the Bax/Bcl-2 ratio. In the rat model of SCI, Nissl and TUNEL staining showed that β-elemene promoted motor neuron survival and reduced neuronal apoptosis in the spinal cord ventral horn. BBB scores showed that β-elemene significantly promoted locomotor behavioral recovery after SCI. In addition, β-elemene reduced the ELISA-detected secretion of interleukin (IL)-6 and IL-1β. CONCLUSION β-elemene reduces neuronal apoptosis by alleviating endoplasmic reticulum stress in vitro and in vivo. In addition, β-elemene promotes locomotor function recovery and tissue repair in SCI rats. Thus, our study provides a novel encouraging strategy for the potential treatment of β-elemene in SCI patients.
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86
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Haile H, Zheng M, Pappoe F, Shen J, Xu Y. Genotyping and Sero-Virological characterization of Hepatitis B Virus in blood donors, Southern Ethiopia. Int J Infect Dis 2018. [DOI: 10.1016/j.ijid.2018.04.3521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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87
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Wang J, Li H, Yao Y, Ren Y, Lin J, Hu J, Zheng M, Song X, Zhao T, Chen YY, Shen Y, Zhu YJ, Wang LL. β-Elemene Enhances GAP-43 Expression and Neurite Outgrowth by Inhibiting RhoA Kinase Activation in Rats with Spinal Cord Injury. Neuroscience 2018; 383:12-21. [DOI: 10.1016/j.neuroscience.2018.04.045] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 04/03/2018] [Accepted: 04/28/2018] [Indexed: 12/21/2022]
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88
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Zheng M, Ujiie H, Muramatsu K, Sato-Matsumura KC, Maeda T, Ujiie I, Iwata H, Izumi K, Nishie W, Shimizu H. A possible association between BP230-type bullous pemphigoid and dementia: a report of two cases in elderly patients. Br J Dermatol 2018; 178:1449-1450. [PMID: 29278417 DOI: 10.1111/bjd.16249] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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89
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Cao Z, Zheng M, Vorobyeva Y, Song C, Johnson NF. Universality and correlations in individuals wandering through an online extremist space. Phys Rev E 2018; 97:032315. [PMID: 29776132 DOI: 10.1103/physreve.97.032315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Indexed: 11/07/2022]
Abstract
The "out of the blue" nature of recent terror attacks and the diversity of apparent motives highlight the importance of understanding the online trajectories that individuals follow prior to developing high levels of extremist support. Here we show that the physics of stochastic walks, with and without temporal correlation, provides a unifying description of these online trajectories. Our unique data set comprising all users of a global social media site reveals universal characteristics in individuals' online lifetimes. Our accompanying theory generates analytical and numerical solutions that describe the characteristics shown by individuals that go on to develop high levels of extremist support and those that do not. Going forward, it is conceivable that a deeper understanding of these temporal and many-body correlations may eventually contribute to the important task of better countering the spread of radical propaganda online.
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90
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Zheng M, Cao Z, Vorobyeva Y, Manrique P, Song C, Johnson NF. Multiscale dynamical network mechanisms underlying aging of an online organism from birth to death. Sci Rep 2018; 8:3552. [PMID: 29476170 PMCID: PMC5824793 DOI: 10.1038/s41598-018-22027-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Accepted: 02/15/2018] [Indexed: 11/20/2022] Open
Abstract
We present the continuous-time evolution of an online organism network from birth to death which crosses all organizational and temporal scales, from individual components through to the mesoscopic and entire system scale. These continuous-time data reveal a lifespan driven by punctuated, real-time co-evolution of the structural and functional networks. Aging sees these structural and functional networks gradually diverge in terms of their small-worldness and eventually their connectivity. Dying emerges as an extended process associated with the formation of large but disjoint functional sub-networks together with an increasingly detached core. Our mathematical model quantifies the very different impacts that interventions will have on the overall lifetime, period of initial growth, peak of potency, and duration of old age, depending on when and how they are administered. In addition to their direct relevance to online extremism, our findings may offer insight into aging in other network systems of comparable complexity for which extensive in vivo data is not yet available.
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91
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Wen D, Li J, Zhao H, Li J, Zheng M. Diagnostic performance of two corrected transluminal attenuation gradient metrics in coronary CT angiography for the evaluation of significant in-stent restenosis by dual-source CT: a validation study with invasive coronary angiography. Clin Radiol 2018; 73:592.e1-592.e8. [PMID: 29454588 DOI: 10.1016/j.crad.2018.01.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Accepted: 01/15/2018] [Indexed: 10/18/2022]
Abstract
AIM To determine the diagnostic potential of transluminal attenuation gradients (TAG) with exclusion of stented coronary segments (TAG-ExS) and TAG-corrected contrast opacification (CCO) excluding stented coronary segments (TAG-CCO-ExS) for the assessment of in-stent restenosis (ISR). MATERIALS AND METHODS TAG-ExS and TAG-CCO-ExS were calculated in 93 coronary arteries with 190 stents. The diagnostic performances and the incremental values of the two metrics to coronary computed tomography angiography (CCTA) were analysed and compared. RESULTS For all stents and stents >3 mm in diameter, TAG-ExS and TAG-CCO-ExS were significantly lower in ≥50% than that in <50% of ISR (both p<0.05). For stent diameters ≤3 mm, significantly lower TAG-CCO-ExS (p=0.000), but not TAG-ExS (p=0.059), was found in ≥50% than in <50% of ISR. Addition of TAG-ExS or TAG-CCO-ExS to CCTA, did not improve the diagnostic accuracy of CCTA significantly (all p>0.05). Only TAG-CCO-ExS had a significant impact on CCTA for the reclassifications of ISR (p=0.046) in stent diameters ≤3 mm. CONCLUSIONS TAG-ExS and TAG-CCO-ExS did not provide incremental diagnostic value over CCTA in assessing ISR. TAG-CCO-ExS slightly enhanced the reclassifications of ISR for stents ≤3 mm in diameter.
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92
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Liu D, Tian K, Yuan Y, Li M, Zheng M, Qiu X. Prokaryotic functional expression and activity comparison of three CYP9A genes from the polyphagous pest Helicoverpa armigera. BULLETIN OF ENTOMOLOGICAL RESEARCH 2018; 108:77-83. [PMID: 28578718 DOI: 10.1017/s0007485317000517] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Cytochrome P450s (CYPs or P450s) have been long recognized as very important enzymes in the metabolism of xenobiotic and endogenous compounds, but only a few CYPs have been functionally characterized in insects. The effort in functional characterization of insect P450s is heavily hindered by technical difficulties in preparing active, individual P450 enzymes directly from the target insect. In this paper, we describe the functional expression of two additional pyrethroid resistance-associated CYP9A genes (CYP9A12 and CYP9A17) from the polyphagous pest Helicoverpa armigera in the facile Escherichia coli. The functionality of E. coli produced CYP9A12, CYP9A14, and CYP9A17 was investigated and activities of these CYP9As were compared against three probe substrates after reconstitution with NADPH-dependent cytochrome P450 reductase. The results showed that active forms of CYP9A12 and CYP9A17 were expressed in E. coli with a content of about 1.0-1.5 nmol mg-1 protein in membrane preparations. In vitro assays showed that CYP9A14 was capable of catalyzing O-dealkylation of methoxyresorufin (MROD), ethoxyresorufin (EROD), and benzyloxyresorufin (BROD), while CYP9A12 and CYP9A17 exhibited only MROD and EROD activities. Kinetic studies demonstrated that CYP9A14 had the greatest k cat/K m value for MROD, and CYP9A17 for EROD, while the lowest k cat/K m values for both MROD and EROD were observed for CYP9A12. The distinct biochemical traits suggest that the three paralogous CYP9As may play different roles in xenobiotic metabolism in this important pest.
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Wen S, Sun W, Li Z, Zhuang X, Zhao G, Xie C, Zheng M, Jing J, Xiao P, Wang M, Han J, Ren J, Liu H, Lu H, Jin N. The detection of porcine circovirus 3 in Guangxi, China. Transbound Emerg Dis 2017; 65:27-31. [DOI: 10.1111/tbed.12754] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Indexed: 11/26/2022]
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Zheng M, Zhang X, Zhang L, Teng H, Hu J, Hu M. Uniform Test Method Optimum Design for Drag-Type Modified Savonius VAWTs by CFD Numerical Simulation. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2017. [DOI: 10.1007/s13369-017-2920-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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95
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Zheng M, Wang A, Wang T, Thien C, Gao J, Zheng Q, Ebert J. AKT activation by uni-axial mechanical stimulation is essential for repair of micro damages in tendon during daily activities. J Sci Med Sport 2017. [DOI: 10.1016/j.jsams.2017.09.271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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96
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Zheng M, O’Beirne A, Hughes J, Cannon M, Ebert J. Autologous tenocyte injection (ATI) for the treatment of compensating occupationally related lateral epicondylitis: A retrospective case study. J Sci Med Sport 2017. [DOI: 10.1016/j.jsams.2017.09.195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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97
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Wang J, Liao XH, Zheng M, Yang D, Zhou XZ, Liu H, Lu KP. The Roles of the Unique Prolyl Isomerase Pin1 in Cancer-Related Viral and Bacterial Infections. Curr Mol Med 2017; 16:793-802. [PMID: 27889995 DOI: 10.2174/1566524016666161124103654] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Revised: 10/29/2016] [Accepted: 10/30/2016] [Indexed: 11/22/2022]
Abstract
Infection is the process of pathogen invasion, as well as the host reaction to the foreign agents. Proline-directed phosphorylation is a major regulatory mechanism that regulates the function of fundamental proteins involved in infection and infection-induced cancer. Recently, the identification of the phosphorylation-dependent prolyl isomerase Pin1 has uncovered a unique regulatory signaling mechanism controlling protein conformation and function after phosphorylation. Pin1 is the only proline isomerase that specifically recognizes certain Pro-directed Ser/Thr phosphorylation motifs. Pin1 has emerged as a major regulator of cancerrelated viral and bacterial infections notably via activating Toll-like receptor signaling and NF-κB pathways. This paper will specifically review recent findings on the role of Pin1 in cancer-related viral and bacterial infections and also discuss newly discovered Pin1 inhibitors as promising drugs for the prevention and treatment of viral and bacterial infections and associated tumorigenesis.
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Ma DQ, Li Y, Han ZG, Zheng M, Xu N, Fan XJ. Analysis on kidney injury-related clinical risk factors and evaluation on the therapeutic effects of hemoperfusion in children with Henoch-Schonlein purpura. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2017; 21:3894-3899. [PMID: 28975974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To investigate risk factors related to kidney injury in children with Henoch-Schonlein purpura (HSP) and to study the therapeutic effects of hemoperfusion (HP) on kidney injury in HSP children, providing clinical evidence for early prevention and treatment of HSP. PATIENTS AND METHODS Children who suffered from HSP for the first time were selected as study objects and they were followed up for 12 months. Single factor analysis and multi-factor Logistic regression analysis were performed for children's demographic characteristics (age, gender), clinical manifestations (rash duration time, rash recurrence times, digestive tract hemorrhage, abdominal pain, arthralgia, HSP recurrence) and laboratory indexes (peripheral blood WBC, PLT, ESR, CRP, serum IgG, serum IgA, IgM, serum C3, serum C4, TC, TG, HDL, LDL). Meanwhile, participants were divided into treatment group (HP treatment) and control group, and the protective effects of HP on renal function of HSP children were discussed. RESULTS Single factor analysis indicated age ≥ 6 years, rash recurrence ≥ 3 times, rash duration time ≥ 1 month, digestive tract hemorrhage, peripheral blood PLT, WBC, serum TC and serum LDL levels had statistically significant differences between the two groups. Multi-factor Logistic regression analysis indicated rash recurrence ≥ 3 times, digestive tract hemorrhage, decline of peripheral blood PLT count, and increases of serum TC and LDL were closely related to kidney injury of HSP children. After discharge, kidney injury comparison between treatment group and control group in follow-up had a statistical difference. CONCLUSIONS Rash recurrence ≥ 3 times, digestive tract hemorrhage, decline in peripheral blood PLT count, increases of serum TC and LDL, are risk factors of kidney injury in HSP children. HP can protect renal function of HSP children.
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Rangan A, Zheng M, Olsen NJ, Rohde JF, Heitmann BL. Shorter sleep duration is associated with higher energy intake and an increase in BMI z-score in young children predisposed to overweight. Int J Obes (Lond) 2017; 42:59-64. [PMID: 28883538 DOI: 10.1038/ijo.2017.216] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 08/14/2017] [Accepted: 08/20/2017] [Indexed: 12/17/2022]
Abstract
BACKGROUND Inadequate sleep has been shown to be a contributor to obesity in both children and adults. Less evidence is available for toddlers and among those with higher obesity risk. The objective of this study was to examine the relationship between sleep patterns and body weight development in a group of young obesity-predisposed children, and to assess whether intakes of energy or macronutrients mediate this relationship. METHODS Participants included 368 Danish children aged 2-6 years from the Healthy Start Study, a 1.3 year randomised controlled intervention trial. Sleep habits were measured using a 7-day sleep diary. Multivariate linear regression with adjustment for confounders was used to assess the association of sleep duration and sleep variability with 1.3 year changes (Δ) in body mass index (BMI) z-score from baseline to follow-up. RESULTS The average nighttime sleep duration was 10.7 h (range 8.8-12.5 h). After controlling for potential confounders, a significant inverse association between nighttime sleep duration and ΔBMI z-score (β=-0.090, P=0.046) was observed. This relationship was mediated by energy intake, with all macronutrients contributing to this mediation effect. No associations were found for sleep variability and ΔBMI z-score but baseline intake of added sugars and sugary beverages were positively associated with sleep variability. CONCLUSION Shorter sleep duration, mediated by energy intake in early in life, seems a risk factor for weight gain among young obesity-predisposed children.
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Cui X, Liu R, Cui H, Zhao G, Zheng M, Li Q, Liu J, Liu Z, Wen J. Effects of caponization and ovariectomy on objective indices related to meat quality in chickens. Poult Sci 2017; 96:770-777. [PMID: 27738117 DOI: 10.3382/ps/pew346] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Accepted: 09/01/2016] [Indexed: 11/20/2022] Open
Abstract
Capons and ovariectomized chickens are birds that have been gonadectomized to improve the meat quality. This study investigated the effects of caponization and ovariectomy on physical, chemical, and fatty acid and amino acid profiles of meat from Beijing-You chickens (a Chinese local breed) at market age (17 wk). All birds (20 capons, 20 ovariectomized, and 40 controls) were reared under the same conditions. Breast muscle fiber diameter and area were significantly smaller and the fiber density was higher in capons and ovariectomized chickens than in controls (P < 0.05). Compared with controls, caponization and ovariectomy significantly decreased breast muscle shear values and redness (a*), as well as increased yellowness (b*), hue (H*), and chroma (C*) (P < 0.05). There was significantly more intramuscular fat (IMF) in capons than in controls (P < 0.05), and there was a tendency for more inosine-5΄-monophosphate (IMP) in capons than in controls (P = 0.10). The levels of IMF and IMP in ovariectomized chickens were significantly higher than those in controls (P < 0.05). Capons and ovariectomized chickens exhibited a significantly higher content of palmitic acid (C16:0), palmitoleic acid (C16:1) and oleic acid (C18:1), together with a lower content of stearic acid (C18:0), arachidonic acid (C20:4), and lignoceric acid (C24:0) compared to controls (P < 0.05). The total saturated, monounsaturated, and polyunsaturated fatty acids as well as amino acid composition were not affected by gonadectomy (P > 0.05). Overall, this study indicates that both caponization and ovariectomy likely improve the meat quality of the breast muscle based on the objective indices of IMF, appearance (color), texture, and minor change of the fatty acid profile; ovariectomy improves flavor-related indices.
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