51
|
Bruce J, Hui A, Waggot D, Yue S, Shi W, Perez-Ordonez B, Xu W, O'Sullivan B, Waldron J, Liu F. The Role of MicroRNAs in Human Nasopharyngeal Carcinoma. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
52
|
Yue S, Godet C, Meurice JC. Apport du scanner thoracique dans le diagnostic de pneumopathies avec hyperéosinophilie périphérique. Rev Mal Respir 2012. [DOI: 10.1016/j.rmr.2012.10.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
53
|
Cao C, Yu X, Liao Z, Zhu N, Huo H, Wang M, Ji G, She H, Luo Z, Yue S. Hypertonic saline reduces lipopolysaccharide-induced mouse brain edema through inhibiting aquaporin 4 expression. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2012; 16:R186. [PMID: 23036239 PMCID: PMC3682288 DOI: 10.1186/cc11670] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Accepted: 10/04/2012] [Indexed: 12/25/2022]
Abstract
INTRODUCTION Three percent sodium chloride (NaCl) treatment has been shown to reduce brain edema and inhibited brain aquaporin 4 (AQP4) expression in bacterial meningitis induced by Escherichia coli. Lipopolysaccharide (LPS) is the main pathogenic component of E. coli. We aimed to explore the effect of 3% NaCl in mouse brain edema induced by LPS, as well as to elucidate the potential mechanisms of action. METHODS Three percent NaCl was used to treat cerebral edema induced by LPS in mice in vivo. Brain water content, IL-1β, TNFα, immunoglobulin G (IgG), AQP4 mRNA and protein were measured in brain tissues. IL-1β, 3% NaCl and calphostin C (a specific inhibitor of protein kinase C) were used to treat the primary astrocytes in vitro. AQP4 mRNA and protein were measured in astrocytes. Differences in various groups were determined by one-way analysis of variance. RESULTS Three percent NaCl attenuated the increase of brain water content, IL-1β, TNFα, IgG, AQP4 mRNA and protein in brain tissues induced by LPS. Three percent NaCl inhibited the increase of AQP4 mRNA and protein in astrocytes induced by IL-1β in vitro. Calphostin C blocked the decrease of AQP4 mRNA and protein in astrocytes induced by 3% NaCl in vitro. CONCLUSIONS Osmotherapy with 3% NaCl ameliorated LPS-induced cerebral edema in vivo. In addition to its osmotic force, 3% NaCl exerted anti-edema effects possibly through down-regulating the expression of proinflammatory cytokines (IL-1β and TNFα) and inhibiting the expression of AQP4 induced by proinflammatory cytokines. Three percent NaCl attenuated the expression of AQP4 through activation of protein kinase C in astrocytes.
Collapse
|
54
|
Chamanfar A, Jahazi M, Gholipour J, Wanjara P, Yue S. Suppressed liquation and microcracking in linear friction welded WASPALOY. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.matdes.2011.11.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
|
55
|
Martin RA, Yue S, Hanna JV, Lee PD, Newport RJ, Smith ME, Jones JR. Characterizing the hierarchical structures of bioactive sol-gel silicate glass and hybrid scaffolds for bone regeneration. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2012; 370:1422-1443. [PMID: 22349249 DOI: 10.1098/rsta.2011.0308] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Bone is the second most widely transplanted tissue after blood. Synthetic alternatives are needed that can reduce the need for transplants and regenerate bone by acting as active temporary templates for bone growth. Bioactive glasses are one of the most promising bone replacement/regeneration materials because they bond to existing bone, are degradable and stimulate new bone growth by the action of their dissolution products on cells. Sol-gel-derived bioactive glasses can be foamed to produce interconnected macropores suitable for tissue ingrowth, particularly cell migration and vascularization and cell penetration. The scaffolds fulfil many of the criteria of an ideal synthetic bone graft, but are not suitable for all bone defect sites because they are brittle. One strategy for improving toughness of the scaffolds without losing their other beneficial properties is to synthesize inorganic/organic hybrids. These hybrids have polymers introduced into the sol-gel process so that the organic and inorganic components interact at the molecular level, providing control over mechanical properties and degradation rates. However, a full understanding of how each feature or property of the glass and hybrid scaffolds affects cellular response is needed to optimize the materials and ensure long-term success and clinical products. This review focuses on the techniques that have been developed for characterizing the hierarchical structures of sol-gel glasses and hybrids, from atomic-scale amorphous networks, through the covalent bonding between components in hybrids and nanoporosity, to quantifying open macroporous networks of the scaffolds. Methods for non-destructive in situ monitoring of degradation and bioactivity mechanisms of the materials are also included.
Collapse
|
56
|
Yue S. Study of quantitative assessment of left ventricular systolic function by tissue motion annular displacement in heart failure patients. BRITISH HEART JOURNAL 2011. [DOI: 10.1136/heartjnl-2011-300867.363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
57
|
Hao Y, Liu H, Yue S, Liu X. Introducing traditional Chinese nursing: a review of concepts, theories and practices. Int Nurs Rev 2011; 58:319-27. [PMID: 21848777 DOI: 10.1111/j.1466-7657.2011.00918.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIM This paper discussed the basic concepts, theories and practices of traditional Chinese nursing (TCN) to enrich our understanding of relevant concepts and ways to contribute to human health. BACKGROUND Advantages of TCN include health education based on theories and techniques of traditional Chinese medicine. It focuses mainly on mobilizing humans' capacity for self-adjustment and self-rehabilitation to make a dynamic balance between yin and yang, qi and blood and zang and fu. It has played a significant role in the fields of primary nursing, geriatric nursing, hospice, family nursing, etc., in China. METHOD PubMed, CINAHL, Ovid Medline (English) and the Wang Fang (Chinese) databases were searched for literature on a range of keywords relating to traditional Chinese medicine and nursing. Forty references (13 English and 27 Chinese) were finally selected for review. CONCLUSION Practices of nursing care in traditional Chinese medicine are based mainly on the theories of yin-yang and the five elements. There are two prime characteristics in the theoretical system of TCN: holism and nursing determination based on syndrome differentiation. The distinctive content include prevention, daily care of patients, dietary nursing, etc. TCN, with its characteristics of little damage, little pain, ease of operation and low cost, is appropriately used in primary health care in China. By combining Western and Eastern philosophies and approaches to nursing, life phenomena can be better understood, and more ways to promote health can be exploited. Scientists are beginning to use Western research methods to establish effectiveness. Many common interventions would not, however, be considered safe in Western nursing practice without more evidence and consideration of health and safety issues.
Collapse
|
58
|
Jones JR, Lin S, Yue S, Lee PD, Hanna JV, Smith ME, Newport RJ. Bioactive glass scaffolds for bone regeneration and their hierarchical characterisation. Proc Inst Mech Eng H 2010; 224:1373-87. [DOI: 10.1243/09544119jeim836] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Scaffolds are needed that can act as temporary templates for bone regeneration and actively stimulate vascularized bone growth so that bone grafting is no longer necessary. To achieve this, the scaffold must have a suitable interconnected pore network and be made of an osteogenic material. Bioactive glass is an ideal material because it rapidly bonds to bone and degrades over time, releasing soluble silica and calcium ions that are thought to stimulate osteoprogenitor cells. Melt-derived bioactive glasses, such as the original Bioglass® composition, are available commercially, but porous scaffolds have been difficult to produce because Bioglass and similar compositions crystallize on sintering. Sol-gel foam scaffolds have been developed that avoid this problem. They have a hierarchical pore structure comprising interconnected macropores, with interconnect diameters in excess of the 100 μm that is thought to be needed for vascularized bone ingrowth, and an inherent nanoporosity of interconnected mesopores (2–50 nm) which is beneficial for the attachment of osteoprogenitor cells. They also have a compressive strength in the range of cancellous bone. This paper describes the optimized sol-gel foaming process and illustrates the importance of optimizing the hierarchical structure from the atomic through nano, to the macro scale with respect to biological response.
Collapse
|
59
|
Li L, She H, Yue S, Feng D, Luo Z. Vasoactive intestinal peptide induces surfactant protein A expression in ATII cells through activation of PKC/c-Fos pathway. Peptides 2010; 31:2046-51. [PMID: 20688121 DOI: 10.1016/j.peptides.2010.07.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2010] [Revised: 07/13/2010] [Accepted: 07/14/2010] [Indexed: 12/28/2022]
Abstract
Vasoactive intestinal peptide (VIP) is a major neurotransmitter in the lungs and regulates many aspects of pulmonary functions. Pulmonary surfactant (PS), a complex mixture of lipids and proteins, produced by the alveolar type II (ATII) cells maintains alveolar integrity and plays important roles in the control of host defense and inflammation in the lungs. Surfactants deficiency or dysfunction is associated with occurrence and development of many pulmonary diseases. We reported previously that VIP enhanced the synthesis of pulmonary surfactants phospholipid in ATII cells. In this study, the effect of VIP on the expression of pulmonary surfactant protein A (SP-A) in lung explants was investigated. Firstly, we found that VIP elevated SP-A expression in ATII cells which was mediated by enhanced sp-a gene transcription. Furthermore, we identified that c-Fos protein was essential for VIP induced SP-A expression in ATII cells. Finally, we provided evidence to show that activation of c-Fos expression by PKC was required for VIP induced SP-A expression. Altogether, our work showed that VIP regulated the function of pulmonary surfactant system in the lungs and further investigation of the underlying mechanism would provide important clues for better therapeutic strategy design for pulmonary disorders caused by surfactant deficiency.
Collapse
|
60
|
Alajez NM, Shi W, Hui ABY, Bruce J, Lenarduzzi M, Ito E, Yue S, O'Sullivan B, Liu FF. Enhancer of Zeste homolog 2 (EZH2) is overexpressed in recurrent nasopharyngeal carcinoma and is regulated by miR-26a, miR-101, and miR-98. Cell Death Dis 2010; 1:e85. [PMID: 21368858 PMCID: PMC3035896 DOI: 10.1038/cddis.2010.64] [Citation(s) in RCA: 130] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
There is increasing evidence supporting the role of members of the polycomb group (PcG) gene family in tumor development and progression. However, their precise role in tumorigenesis and mechanisms of their regulation remain to be elucidated. Using nasopharyngeal carcinoma (NPC) as a disease model, a comprehensive analysis was undertaken on the clinical significance of EZH2 expression, identification of the cellular processes regulated by EZH2, and the mechanisms of its deregulated expression. Herein, we report EZH2 as being associated with a higher risk of relapse in NPC patients (P=0.002). Genome-wide microarray and bioinformatics identified several vital cellular processes (such as differentiation, development, and apoptosis) to be regulated by EZH2, corroborated by in vitro lethality, and delayed tumor formation in vivo upon EZH2 depletion. The combination of global microRNA (miR) profiling in primary NPC specimens, and in silico analyses provided several candidate miRs that could regulate EZH2. Using a luciferase-based assay, miR-26a, miR-101, and miR-98 were validated as bona fide regulators of EZH2 expression. In particular, miR-98 was underexpressed in relapsed patient samples, strongly suggesting an important role for the miR-98 and EZH2 axis in NPC biology.
Collapse
|
61
|
Yuman L, Mingxing X, Xinfang W, Qing L, Li Y, Lan J, Yue S, Ning Z. e0691 Feasibility and reproducibility of a new semiautomated quantification of left ventricular volumes and ejection fraction in normal adults using real time 3-dimensional echocardiography. BRITISH HEART JOURNAL 2010. [DOI: 10.1136/hrt.2010.208967.691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
62
|
Shen L, Li L, She H, Yue S, Li C, Luo Z. Inhibition of Pulmonary Surfactants Synthesis during N-Methyl-d-Aspartate-Induced Lung Injury. Basic Clin Pharmacol Toxicol 2010; 107:751-7. [DOI: 10.1111/j.1742-7843.2010.00572.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
63
|
Yue S, Gong W, Qi N, Wang B, Zhou W, Zhu Y. Effect of the dispersion of organic rectorite on the nonisothermal crystallization kinetics and melting behaviors of nylon 6 nanocomposites. J Appl Polym Sci 2008. [DOI: 10.1002/app.28847] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
64
|
Yue S, Chen Y, Cheng SY. Hedgehog signaling promotes the degradation of tumor suppressor Sufu through the ubiquitin-proteasome pathway. Oncogene 2008; 28:492-9. [PMID: 18997815 DOI: 10.1038/onc.2008.403] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Sustained Sonic hedgehog (Shh) pathway activity is associated with tumorigenesis in a wide variety of tissues. Mutational inactivation of Shh receptor Patched (Ptch) and a downstream gene Suppressor of fused (Sufu), both of which are negative regulators of the pathway, increases susceptibility to cerebellum cancer in humans and mice. Sufu is a binding partner of Shh pathway transcription factor Gli. Recent data indicate that inactivation of Sufu, through either gene targeting in mice or RNAi-mediated silencing in cultured fibroblasts, is sufficient to turn on Shh target gene expression. Here, we report that Sufu is degraded rapidly in certain cancer cells and we show that Shh signaling promotes ubiquitination of Sufu, which leads to its destruction in the proteasomes. We identified an ubiquitin attachment site on K257 of Sufu, and showed that Sufu-K257R mutant is more potent as a transcription repressor and cell growth inhibitor because of increased stability. These results indicate that Shh signaling regulates Sufu activity by inducing its turnover via the ubiquitin-proteasome system.
Collapse
|
65
|
Li C, Han J, Li L, Yue S, Li J, Feng D, Liu H, Jiang D, Qin X, Luo Z. Interaction of antiflammin-1 with uteroglobin-binding protein induces phosphorylation of ERK1/2 in NIH 3T3 cells. Peptides 2007; 28:2137-45. [PMID: 17928103 DOI: 10.1016/j.peptides.2007.08.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2007] [Revised: 08/27/2007] [Accepted: 08/29/2007] [Indexed: 10/22/2022]
Abstract
Previously, it has been suggested that uteroglobin (UG)-binding protein functions as a putative receptor of UG; however, the specific epitope of UG that interacts with this receptor has not yet been identified. The downstream events of UG-binding protein signaling remain unclear. Here we report that antiflammin-1 (AF-1, a bioactive C-terminal peptide of UG) specifically binds to UG-binding protein and has a cellular signaling consequence. We reduced the level of endogenous UG-binding protein expression in murine fibroblast cell line NIH 3T3 by RNA interference and found that knockdown of UG-binding protein inhibited AF-1-induced extracellular signal-regulated kinase 1 and 2 (ERK1/2) phosphorylation. Meanwhile, the interaction between AF-1 and UG-binding protein was confirmed by flow cytometry-based binding assays and co-localization of AF-1 and enhanced green fluorescent protein (EGFP)-tagged UG-binding protein. The present study provides evidence for the first time for AF-1 binding with UG-binding protein, and preliminarily characterized UG-binding protein as a point downstream of AF-1 in mediating ERK phosphorylation.
Collapse
|
66
|
Yue S, Li Q, Liu S, Luo Z, Tang F, Feng D, Yu P. Mechanism of neuroprotective effect induced by QingKaiLing as an adjuvant drug in rabbits with E. coli bacterial meningitis. ACTA NEUROCHIRURGICA. SUPPLEMENT 2006; 96:413-8. [PMID: 16671496 DOI: 10.1007/3-211-30714-1_85] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
OBJECTIVE To explore the neuroprotective effects and underlying mechanism of QingKaiLing (QKL) as an adjuvant treatment for bacterial meningitis. METHOD E. coli bacterial meningitis rabbits were treated with antibiotics (ampicillin) alone or in combination with QKL. The number of leukocytes and the concentration of protein in the cerebrospinal fluid (CSF) of rabbits were determined at 0, 16, and 26 hours after treatment. Brain water, sodium, potassium, and calcium contents were determined at the 26-hour time point. The level of matrix metalloproteinase-9 in the brain was also determined by Western blot. RESULT The average number of leukocytes and the concentration of protein in CSF of the QKL adjuvant treatment group were reduced compared with the ampicillin alone group. Brain water, sodium, and calcium contents were reduced in the QKL adjuvant treatment group. The level of MMP-9 in brain tissue was also reduced in the QKL adjuvant treatment group. CONCLUSION QKL adjuvant treatment alleviates the aggravated inflammatory reaction and partially protects brain tissue from antibiotic-induced injury. The mechanism of this neuroprotective effect of QKL may be due to decreased levels of Ca2+ and MMP-9 in the brain.
Collapse
|
67
|
Varano R, Bobyn JD, Medley JB, Yue S. The effect of microstructure on the wear of cobalt-based alloys used in metal-on-metal hip implants. Proc Inst Mech Eng H 2006; 220:145-59. [PMID: 16669383 DOI: 10.1243/09544119jeim110] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The influence of microstructure on the wear of cobalt-based alloys used in metal-on-metal hip implants was investigated in a boundary lubrication regime designed to represent the conditions that occurred some of the time in vivo. These cobalt-chromium-molybdenum alloys were either wrought, with a total carbon content of 0.05 or 0.23 wt %, cast with a solution-annealing procedure or simply as-cast but not solution annealed. Bars of these different alloy grades were subjected to various heat treatments to develop different microstructures. The wear was evaluated in a linear-tracking reciprocating pin-on-plate apparatus with a 25 per cent bovine serum lubricant. The wear was found to be strongly affected by the dissolved carbon content of the alloys and mostly independent of grain size or the carbide characteristics. The increased carbon in solid solution caused reductions in volumetric wear because carbon helped to stabilize a face-centred cubic crystal structure, thus limiting the amount of strain-induced transformation to a hexagonal close-packed crystal structure. Based on the observed surface twining in and around the contact zone and the potentially detrimental effect of the hexagonal close-packed phase, it was postulated that the wear of cobalt-based alloys in the present study was controlled by a deformation mechanism.
Collapse
|
68
|
Varano R, Bobyn JD, Medley JB, Yue S. Effect of microstructure on the dry sliding friction behavior of CoCrMo alloys used in metal-on-metal hip implants. J Biomed Mater Res B Appl Biomater 2006; 76:281-6. [PMID: 16080175 DOI: 10.1002/jbm.b.30370] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The microstructure and its effect on the friction behavior of a medical grade wrought cobalt-chromium-molybdenum (CoCrMo) alloy for surgical implants were studied in this work. In particular, the effects of compression and carbon (C) content on the above characteristics were analyzed. Increasing amounts of deformation resulted in a decrease in the number of annealing twins in the microstructures. In addition, there was an increase in the volume fraction of the hexagonal closed-packed (HCP) phase due to a strain-induced transformation (SIT) from the metastable face-centered cubic (FCC) phase. The high C (HC) alloy had a lower volume fraction of this SIT phase. Friction studies conducted on these alloys revealed a higher coefficient of friction for the HC alloy and no significant effect of SIT on the friction characteristics.
Collapse
|
69
|
Wang K, Yue S, Wang L, Jin A, Gu C, Wang P, Wang H, Xu X, Wang Y, Niu H. Nanofluidic channels fabrication and manipulation of DNA molecules. ACTA ACUST UNITED AC 2006; 153:11-5. [PMID: 16480321 DOI: 10.1049/ip-nbt:20050044] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Nanofluidic channel arrays, which have a width of about 40 nm, depth of 60 nm and length of 50 mum, were created using a focused-ion-beam milling instrument on a silicon nitride film swiftly and exactly, as is necessary. Stained -DNA molecules were put inside these sub-100 nm conduits by capillary force and they were stretched and transferred along these conduits, which were dealt with activating reagent Brij aqueous solution in advance. The movements of DNA molecules in these channels were discussed. These nano-structure channels may be useful in the study and analysis of the statics as well as the dynamics of single biomolecules.
Collapse
|
70
|
Cao W, Hong H, Yue S, Ding Y, Zhang Y. Nutrient loss from an agricultural catchment and landscape modeling in southeast China. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2003; 71:761-767. [PMID: 14672129 DOI: 10.1007/s00128-003-0197-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
|
71
|
Yue S, Duncan IJH. Frustrated nesting behaviour: relation to extra-cuticular shell calcium and bone strength in White Leghorn hens. Br Poult Sci 2003; 44:175-81. [PMID: 12828201 DOI: 10.1080/0007166031000088334] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
1. The inability of hens to express normal nesting behaviour in battery cages results in frustration, manifesting itself as stereotyped pacing. Frustration can cause hens to retain their eggs beyond the expected time of lay, resulting in an extra-cuticular layer of calcium on eggshells. 2. This study investigated whether frustrated nesting behaviour caused extra-cuticular calcification of eggshells and whether this loss of non-structural calcium to eggshells may have subsequently contributed to weak bones in spent hens. 3. One hundred and twenty hens were assigned to one of three treatments: NB (hens given nest boxes in their cages), NN (no nest box) and R (access to nest box periodically restricted). 4. NB hens spent the least amount of time pacing in the hour before oviposition. NN and R hens spent similar amounts of time pacing. 5. Contrary to expectation, eggshells from hens under different treatments yielded the same amount of extra-cuticular calcium. Similarly tibia strength did not significantly differ among treatments.
Collapse
|
72
|
Yue S, Lou Z, Yü P, Zeng P. [Changes of glutamate and GABA in cerebrospinal fluid of patients with pneumonia complicated with central nervous system damage]. HUNAN YI KE DA XUE XUE BAO = HUNAN YIKE DAXUE XUEBAO = BULLETIN OF HUNAN MEDICAL UNIVERSITY 2002; 24:287-9. [PMID: 12016810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Glutamate(Glu), gamma-aminobutyric acid(GABA), and malondialdehyde(MDA) in cerebrospinal fluid (CSF) were measured in 18 children with pneumonia complicated with central nervous system(CNS) damage, 14 children with pneumonia without CNS damage, and 7 children with hypocalcemic tetany. The concentration of Glu and MDA and the ratio of Glu/GABA in CSF of pneumonia without CNS damage were significantly higher than the others. The ratio of Glu/GABA in CSF of the children with pneumonia with consciousness obstacle after convulsion was higher than that without consciousness obstacle after convulsion. These results suggest that Glu and free radicals may play a critical role in the CNS damage caused by pneumonia, however GABA may reduce the CNS damage caused by pneumonia.
Collapse
|
73
|
Yue S, Luo Z, Feng D. [Protective effect of c-fos antisense oligonucleotides on brain damage induced by glutamate]. ZHONGHUA YI XUE ZA ZHI 2001; 81:145-9. [PMID: 11798865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
OBJECTIVE To investigate the relation between glutamate neurotoxicity and c-fos gene expression. METHODS c-fos antisense oligonucleotides (AS ODN) was injected into the right lateral ventricles of 9 SD rats to block the c-fos gene expression in brain tissue. c-fos sense oligonucleotides (S ODN) was used a control. The numbers and morphology of neurons in both cerebral cortex and hippocampal CA1 were detected by MIAS-300 image analysing instrument. c-fos gene expression in brain was observed by immunohistochemical method. The content of water and electrolytes in the brain tissue and Ca(2+) in the synapse were measured. RESULTS The c-fos AS ODN blocked the c-fos gene expression and reduced the content of both water and sodium in brain tissue and Ca(2+) in symptosome, thus alleviating the morphological damage in neuron. S ODN did not have such effect. CONCLUSION c-fos gene expression plays an important role in mediating the effect of glutamate neurotoxicity. Blocking the c-fos gene expression could antagonize glutamate neurotoxicity.
Collapse
|
74
|
Yue S, Serra HG, Zoghbi HY, Orr HT. The spinocerebellar ataxia type 1 protein, ataxin-1, has RNA-binding activity that is inversely affected by the length of its polyglutamine tract. Hum Mol Genet 2001; 10:25-30. [PMID: 11136710 DOI: 10.1093/hmg/10.1.25] [Citation(s) in RCA: 109] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Spinocerebellar ataxia type 1 (SCA1) is an autosomal dominant neurodegenerative disease caused by the expansion of a polyglutamine tract within the SCA1 product, ataxin-1. Previously, using transgenic mice, it was demonstrated that in order for a mutant allele of ataxin-1 to cause disease it must be transported to the nucleus of the neuron. Using an in vitro RNA-binding assay, we demonstrate that ataxin-1 does bind RNA and that this binding diminishes as the length of its polyglutamine tract increases. These observations suggest that ataxin-1 plays a role in RNA metabolism and that the expansion of the polyglutamine tract may alter this function.
Collapse
|
75
|
Wen L, Zhang C, Yue S. [Determining the distribution of Mutans Streptococci in human dental plaque by monoclonal antibody against SA I/II and SPAa of Mutans Streptococci]. HUA XI KOU QIANG YI XUE ZA ZHI = HUAXI KOUQIANG YIXUE ZAZHI = WEST CHINA JOURNAL OF STOMATOLOGY 2000; 18:383-5. [PMID: 12539465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To explore the possibility of detecting the distribution of Mutans Streptococci in human dental plaque by Monoclonal antibody (WC2E10c, WC3A6d) against SA I/II and SPAa of Mutans Streptococci, which was prepared in our lab. METHODS 60 subjects were divided into the experimental group and the control group. The distributions of Mutans Streptococci (serotype c and d) in dental plaques were detected in 60 subjects by the clonal blot technique. Positive colonies were examined by bacterial morphology, serology, biochemistry and SDS-PAGE. RESULTS Bacterial colony was significantly different between the experimental group and the control group with eye observation. Colonies of the experimental group were deep brown and easily differentiated, but colonies of control group were white. Brown colonies were proved to be Mutans Streptococci (serotype c and d) by using assay of bacterial morphology, serology, biochemistry and SDS-PAGE, but white colonies were not. CONCLUSION McAbs (WC2E10c, WC3A6d) were shown high specificity in Mutans Streptococci (Serotype c and d) of human dental plaques.
Collapse
|