51
|
Liu J, Zhao D, Liu J, Qi Y, Sun JY, Wang W. [The present status of aspirin use for primary prevention among hypertensive outpatients in China]. ZHONGHUA NEI KE ZA ZHI 2016; 55:267-72. [PMID: 27030613 DOI: 10.3760/cma.j.issn.0578-1426.2016.04.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To evaluate the current status of aspirin for primary prevention in hypertensive outpatients in China, and the gap between aspirin use and guidelines. METHODS This was a multi-center cross-sectional study and carried out in hypertensive patients from 46 hospitals of twenty two cities in China from June to December in 2009. At least 100 essential hypertensive outpatients were consecutively recruited from each participant hospitals according to the consistent inclusion criteria. The patients underwent physical examinations and biochemical analyses, and answered questionnaires. Based on the relevant guidelines, the risk assessment of cardiovascular disease (CVD) is a prerequisite for the proper use of aspirin in primary prevention. RESULTS A total of 5 206 hypertensive outpatients were included. Among them, 1 324 (25.4%) were with a history of CVD. Among those with no history of CVD, 2 705 patients (69.7%) were at high risk of CVD, and the aspirin utilization rate for primary prevention was 29.2%, with 32.2% patients at high risk and 22.4% patients at low-medium risk of CVD, respectively. In the application of aspirin for CVD primary prevention, the inappropriate aspirin use rate in patients at low-medium risk was 23.3%. CONCLUSIONS The proportion of subjects at high risk for CVD is high in hypertensive outpatients suggesting a wide range of application space for aspirin.There exists underutilization for high risk and overutilization for low-medium risk patients in current aspirin primary prevention application.
Collapse
|
52
|
Zhao GX, Dong PP, Peng R, Li J, Zhang DY, Wang JY, Shen XZ, Dong L, Sun JY. Expression, localization and possible functions of aquaporins 3 and 8 in rat digestive system. Biotech Histochem 2016; 91:269-76. [DOI: 10.3109/10520295.2016.1144079] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
53
|
Zhang YW, Zhang XY, Zhang YM, Shen XJ, Sun JY, Ma QL, Yu XM, Zhu JL, Zhang L, Che HC. Significant concentration changes of chemical components of PM1 in the Yangtze River Delta area of China and the implications for the formation mechanism of heavy haze-fog pollution. THE SCIENCE OF THE TOTAL ENVIRONMENT 2015; 538:7-15. [PMID: 26298245 DOI: 10.1016/j.scitotenv.2015.06.104] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 06/17/2015] [Accepted: 06/25/2015] [Indexed: 06/04/2023]
Abstract
Since the winter season of 2013, a number of persistent haze-fog events have occurred in central-eastern China. Continuous measurements of the chemical and physical properties of PM1 at a regional background station in the Yangtze River Delta area of China from 16 Nov. to 18 Dec., 2013 revealed several haze-fog events, among which a heavy haze-fog event occurred between 6 Dec. and 8 Dec. The mean concentration of PM1 was 212μgm(-3) in the heavy haze-fog period, which was about 10 times higher than on clean days and featured a peak mass concentration that reached 298μgm(-3). Organics were the largest contributor to the dramatic rise of PM1 on heavy haze-fog days (average mass concentration of 86μgm(-3)), followed by nitrate (58μgm(-3)), sulfate (35μgm(-3)), ammonium (29μgm(-3)), and chloride (4.0μgm(-3)). Nitrate exhibited the largest increase (~20 factors), associated with a significant increase in NOx. This was mainly attributable to increased coal combustion emissions, relative to motor vehicle emissions, and was caused by short-distance pollutant transport within surrounding areas. Low-volatility oxidized organic aerosols (OA) (LV-OOA) and biomass-burning OA (BBOA) also increased sharply on heavy haze-fog days, exhibiting an enhanced oxidation capacity of the atmosphere and increased emissions from biomass burning. The strengthening of the oxidation capacity during the heavy pollution episode, along with lower solar radiation, was probably due to increased biomass burning, which were important precursors of O3. The prevailing meteorological conditions, including low wind and high relative humidity, and short distance transported gaseous and particulate matter surrounding of the sampling site, coincided with the increased pollutant concentrations mainly from biomass-burning mentioned above to cause the persistent haze-fog event in the YRD area.
Collapse
|
54
|
Lim S, Lee J, Lee MY, Kim H, Lee J, Sun JM, Ahn J, Um SW, Kim H, Kim B, Kim S, Na D, Sun J, Jung S, Park K, Kwon O, Lee JI, Ahn MJ. A randomized phase III trial of stereotactic radiosurgery (SRS) versus observation for patients with asymptomatic cerebral oligo-metastases in non-small-cell lung cancer. Ann Oncol 2015; 26:762-768. [DOI: 10.1093/annonc/mdu584] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
|
55
|
Yi YT, Sun JY, Lu YW, Liao YC. Programmable and on-demand drug release using electrical stimulation. BIOMICROFLUIDICS 2015; 9:022401. [PMID: 25825612 PMCID: PMC4368582 DOI: 10.1063/1.4915607] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 02/02/2015] [Indexed: 05/16/2023]
Abstract
Recent advancement in microfabrication has enabled the implementation of implantable drug delivery devices with precise drug administration and fast release rates at specific locations. This article presents a membrane-based drug delivery device, which can be electrically stimulated to release drugs on demand with a fast release rate. Hydrogels with ionic model drugs are sealed in a cylindrical reservoir with a separation membrane. Electrokinetic forces are then utilized to drive ionic drug molecules from the hydrogels into surrounding bulk solutions. The drug release profiles of a model drug show that release rates from the device can be electrically controlled by adjusting the stimulated voltage. When a square voltage wave is applied, the device can be quickly switched between on and off to achieve pulsatile release. The drug dose released is then determined by the duration and amplitude of the applied voltages. In addition, successive on/off cycles can be programmed in the voltage waveforms to generate consistent and repeatable drug release pulses for on-demand drug delivery.
Collapse
|
56
|
Sun H, Zhong R, Liu H, Wang M, Sun J, Zhou D. Meat quality, fatty acid composition of tissue and gastrointestinal content, and antioxidant status of lamb fed seed of a halophyte (Suaeda glauca). Meat Sci 2015; 100:10-16. [DOI: 10.1016/j.meatsci.2014.09.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Revised: 09/07/2014] [Accepted: 09/08/2014] [Indexed: 10/24/2022]
|
57
|
Tang S, Yu J, Li J, Sun J. Neuroprotective effect of ketamine on acute spinal cord injury in rats. GENETICS AND MOLECULAR RESEARCH 2015; 14:3551-6. [DOI: 10.4238/2015.april.17.4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
58
|
Rong JJ, Liang M, Xuan FQ, Sun JY, Zhao LJ, Zhen HZ, Tian XX, Liu D, Zhang QY, Peng CF, Yao TM, Li F, Wang XZ, Han YL, Yu WT. ASSA14-12-08 POLY (ALGINATE-CALCIUM) MICROSPHERES LOADED WITH THROMBIN: A NEW HEMOSTATIC EMBOLIC MATERIAL FORTRANSCATHETERARTERIAL EMBOLIZATION. BRITISH HEART JOURNAL 2015. [DOI: 10.1136/heartjnl-2014-307109.97] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
59
|
Li HJ, Guo CY, Sun JY, Sun LJ, Zhao PH, Hu L, Li Y, Hu J. Nested polymerase chain reaction amplification and sequencing analysis of the light-chain and heavy-chain variable regions in the influenza A H1N1 virus hemagglutinin monoclonal antibody gene. GENETICS AND MOLECULAR RESEARCH 2014; 13:4372-9. [PMID: 25036343 DOI: 10.4238/2014.june.11.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The nested polymerase chain reaction (PCR) method was used for the amplification of the influenza A H1N1 virus hemagglutinin monoclonal antibody light-chain and heavy-chain genes. Sequence analysis of the obtained genes was then used to identify common cloning methods of the mouse immunoglobulin-kappa (Igκ) light-chain and heavy-chain variable gene regions. Twenty-two pairs of amplification primers for the mouse Igκ light-chain and heavy-chain variable gene regions were designed, and 6 mouse anti-human H1N1 influenza virus hemagglutinin monoclonal antibody light-chain and heavy-chain variable gene regions were cloned and sequenced. Comparative analysis was conducted between our results and the mouse Ig sequences published in the National Center of Biotechnology Information (NCBI). The nested PCR method effectively avoided cloning the pseudogenes of the monoclonal antibody, and the amino acid sequence obtained was consistent with the characteristics of the mouse Ig variable region. A general method of cloning the mouse Ig light-chain and heavy-chain variable gene regions was established, which provides a basis for further cloning of mouse monoclonal antibody variable gene regions. This study also provides data for further studies of H1N1 influenza virus hemagglutinin antibody binding sites.
Collapse
|
60
|
Chen K, Sun J, Turaka A, Tang Y, Farma J, Wu H. Presence and Clinical Significance of Polyomavirus in Merkel Cell Carcinoma of Unknown vs. Known Primary Cutaneous Origin. J Surg Res 2014. [DOI: 10.1016/j.jss.2013.11.910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
61
|
Wang Y, Liu J, Wang W, Sun JY, Wang M, QI Y, Qin LP, Zhao D. THE UTILITY RATE OF ELECTIVE PERCUTANEOUS CORONARY INTERVENTION IN PATIENTS WITH ST ELEVATION ACUTE MYOCARDIAL INFARCTION IN BEIJING, CHINA. BRITISH HEART JOURNAL 2012. [DOI: 10.1136/heartjnl-2012-302920l.8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
62
|
Xu JR, Yang Y, Liu XM, Sun JY, Wang YJ. Polymorphisms of the TIM-1 gene are associated with rheumatoid arthritis in the Chinese Hui minority ethnic population. GENETICS AND MOLECULAR RESEARCH 2012; 11:61-9. [PMID: 22290466 DOI: 10.4238/2012.january.9.7] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The T-cell immunoglobulin and mucin domain 1 (TIM-1) is known to be associated with susceptibility to rheumatoid arthritis (RA). We investigated the association of four single-nucleotide polymorphisms (SNPs) in the promoter region of the TIM-1 gene with susceptibility to RA in a Chinese Hui ethnic minority group. Using RFLP or sequence specific primer-PCR, 118 RA patients and 118 non-arthritis control individuals were analyzed for the -1637A>G, -1454G>A, -416G>C, and -232A>G SNPs in the TIM-1 gene. The polymorphisms -232A>G and -1637A>G in the promoter region of TIM-1 were found to be associated with susceptibility to the RA gene in the Hui population, while -416G>C and -1454G>A SNPs were not. Of these, the polymorphism of -232A>G is inconsistent with that found in a Korean population, suggesting that genetic variations of the TIM-1 gene contribute to RA susceptibility in different ways among different populations. Based on haplotype analysis, individuals with haplotypes AGCA (Χ(2) = 22.0, P < 0.01, OR (95%CI) >1), AGCG (Χ(2) = 18.16, P < 0.01, OR (95%CI) >1) and AGGA (Χ(2) = 5.58, P < 0.05, OR (95%CI) >1) are at risk to develop RA in the Chinese Hui population; those with the GAGA (Χ(2) = 7.44, P < 0.01, OR (95%CI) <1) haplotype may have a decreased likelihood of RA. GGCA and GGCG are more common in both RA and non-RA subjects. We conclude that -1637A>G and -232A>G polymorphisms of TIM-1 are associated with susceptibility to RA in the Chinese Hui population.
Collapse
|
63
|
Nowak I, Majorczyk E, Płoski R, Senitzer D, Sun JY, Kuśnierczyk P. Lack of KIR2DL4 gene in a fertile Caucasian woman. ACTA ACUST UNITED AC 2011; 78:115-9. [PMID: 21623736 DOI: 10.1111/j.1399-0039.2011.01711.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Killer cell immunoglobulin-like receptor (KIR2DL4) gene is present in virtually all humans. It encodes a receptor present on uterine and decidual natural killer (NK) cells and some peripheral blood NK cells. Its only known ligand is human leukocyte antigen-G molecule expressed on extravillous trophoblasts invading the decidua. Therefore, KIR2DL4 has been regarded as a molecule important for successful pregnancy. However, a multiparous woman from Africa, lacking KIR2DL4 gene, was described suggesting that this gene is not absolutely required for successful human reproduction. Here, we describe a Polish woman who delivered a child and who is not only lacking KIR2DL4 gene, but also possessing a KIR genotype virtually identical to that of the African woman mentioned above. Their genotypes are compared with few other KIR2DL4-negative genotypes and haplotypes described so far.
Collapse
|
64
|
Weng XY, Sun JY. Hydrolysis of xyilans by a thermostable hybrid xylanase expressed in Escherichia coli. PRIKLADNAIA BIOKHIMIIA I MIKROBIOLOGIIA 2010; 46:558-561. [PMID: 21058503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Escherichia coli-expressed a hybrid xylanase, Btx, encoded by a designed hybrid xylanase gene Btx was purified. The molecular mass of the enzyme was estimated to be 22 kDa. The K(m) and k(cat) values for Btx were 1.9 mg/ml and 140 s(-1), respectively. It hydrolyzed xylan principally to xylobiose and xylotriose, and was functionally similar to family 11 xylanases. As some differences were found in the hydrolytic products between birchwood xylan and wheat bran insoluble xylan, the xylan binding domains in xylanase Btx must have different effects on soluble and insoluble xylan.
Collapse
|
65
|
Sun J, Pan C, Tong J, Zhang J. Coupled model analysis of the structure and nano-mechanical properties of dragonfly wings. IET Nanobiotechnol 2010; 4:10-8. [DOI: 10.1049/iet-nbt.2009.0009] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
66
|
Jimenez JL, Canagaratna MR, Donahue NM, Prevot ASH, Zhang Q, Kroll JH, DeCarlo PF, Allan JD, Coe H, Ng NL, Aiken AC, Docherty KS, Ulbrich IM, Grieshop AP, Robinson AL, Duplissy J, Smith JD, Wilson KR, Lanz VA, Hueglin C, Sun YL, Tian J, Laaksonen A, Raatikainen T, Rautiainen J, Vaattovaara P, Ehn M, Kulmala M, Tomlinson JM, Collins DR, Cubison MJ, Dunlea EJ, Huffman JA, Onasch TB, Alfarra MR, Williams PI, Bower K, Kondo Y, Schneider J, Drewnick F, Borrmann S, Weimer S, Demerjian K, Salcedo D, Cottrell L, Griffin R, Takami A, Miyoshi T, Hatakeyama S, Shimono A, Sun JY, Zhang YM, Dzepina K, Kimmel JR, Sueper D, Jayne JT, Herndon SC, Trimborn AM, Williams LR, Wood EC, Middlebrook AM, Kolb CE, Baltensperger U, Worsnop DR. Evolution of Organic Aerosols in the Atmosphere. Science 2009; 326:1525-9. [PMID: 20007897 DOI: 10.1126/science.1180353] [Citation(s) in RCA: 1053] [Impact Index Per Article: 70.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
67
|
Senitzer D, Sun J, Gaidulis L, Oki A, Dagis A, Palmer J, Forman S. The Effect of Inhibitory Killer-Cell Ig-Like Receptor(iKIR) Matching in Allogeneic Hematopoietic Cell Transplantation(HCT). Biol Blood Marrow Transplant 2009. [DOI: 10.1016/j.bbmt.2008.12.054] [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]
|
68
|
Harvey D, Pointon JJ, Sleator C, Meenagh A, Farrar C, Sun JY, Senitzer D, Middleton D, Brown MA, Wordsworth BP. Analysis of killer immunoglobulin-like receptor genes in ankylosing spondylitis. Ann Rheum Dis 2008; 68:595-8. [PMID: 19019897 DOI: 10.1136/ard.2008.095927] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
OBJECTIVES To assess the possible association of killer immunoglobulin-like receptor (KIR) genes, specifically KIR3DL1, KIR3DS1 and KIR3DL2, with ankylosing spondylitis (AS). METHODS 14 KIR genes were genotyped in 200 UK patients with AS and 405 healthy controls using multiplex polymerase chain reaction. Sequence-specific oligonucleotide probes were used to subtype 368 cases with AS and 366 controls for 12 KIR3DL2 alleles. Differences in KIR genotypes and KIR3DL2 allele frequencies were assessed using the chi(2) test. RESULTS KIR3DL1 and KIR3DS1 gene frequencies were very similar in cases with AS and controls (odds ratio = 1.5, 95% confidence interval 0.8 to 3.0, and odds ratio = 1.02, 95% confidence interval 0.2 to 5.3, respectively). KIR3DL2 allele frequencies were not significantly different between cases with AS and controls. CONCLUSIONS Neither the KIR gene content of particular KIR haplotypes nor KIR3DL2 polymorphisms contribute to AS.
Collapse
|
69
|
Jing MY, Sun JY, Weng XY, Wang JF. Effects of zinc levels on activities of gastrointestinal enzymes in growing rats. J Anim Physiol Anim Nutr (Berl) 2008; 93:606-12. [PMID: 19178608 DOI: 10.1111/j.1439-0396.2008.00843.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The present study investigated the effect of different zinc (Zn) levels on activities of gastrointestinal digestive enzymes of growing rats. Four diets including Zn-adequate (ZA; 46 mg/kg, control), Zn-deficient (ZD; 3 mg/kg), high Zn supply (ZH; 234 mg/kg) and pair-fed in which animals received the ZA diet at restricted amounts reflecting feed intake of the ZD group were fed to rats for 5 weeks. Dietary Zn was supplemented with ZnO. The results showed that Zn deficiency resulted in decreases in body weight, while ZH supply stimulated growth. The activities of sucrase, lactase and lipase were unaffected by dietary Zn levels. Maltase activity, however, was reduced in ZD group and elevated in ZH group. Amylase and protease activities were depressed by zinc deficiency. However, rats fed the Zn-repletion diet displayed higher activity of pepsin, pancreatic amylase and protease. In particular, ZH supply did have no effect on intestinal hydrolases activities. The present study suggested that zinc deficiency impaired the activities of digestive enzymes and growth of animals. However, ZH supply might improve the digestion of nutrients via increasing activities of gastrointestinal hydrolase and probably enhanced animal health.
Collapse
|
70
|
Sun J, Oki A, Dagis A, Gaidulis L, Forman S, Senitzer D. 15-OR: The role of killer-cell Ig-like receptor (KIR) in hematopoietic cell transplantation (HCT) determined by overall alloimmune response. Hum Immunol 2008. [DOI: 10.1016/j.humimm.2008.08.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
71
|
Sun JY, Oki A, Senitzer D. Alleles and intron polymorphism of KIR3DL1 shown by combination of allele group-specific primers and sequencing. ACTA ACUST UNITED AC 2008; 72:578-80. [PMID: 19000148 DOI: 10.1111/j.1399-0039.2008.01141.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Allelic polymorphism of killer immunoglobulin-like receptor (KIR) genes may affect receptor expression as well as function. We used a combination of allele group-specific primers and DNA sequencing techniques to verify our KIR genotyping primers in polymerase chain reaction and identified three KIR3DL1 alleles. By sequencing some introns of 3DL1 in 18 genomic DNA samples, we found that a 4-bp insert in intron 1 of 3DL1*002 exists in multiple alleles, but that a 2-bp deletion in intron 7 is unique to 3DL1*01501 and that a 19-bp insert in intron 1 seems specific to the CEPH family 1416. Our data suggest that extensive KIR gene polymorphisms are ubiquitous as well as quite complex.
Collapse
|
72
|
Nakamura R, Auayporn N, Smith D, Palmer J, Sun J, Schriber J, Pullarkat V, Parker P, Rodriguez R, Stein A, Rosenthal J, Wang S, Karanas C, Senitzer D, Forman S. 20: Higher CD34+ Cell Doses are Associated with Decreased Relapse Rates Following Unrelated Donor Allogeneic Peripheral Blood Stem Cell Transplantation with Trends to Improved Disease-Free Survival. Biol Blood Marrow Transplant 2008. [DOI: 10.1016/j.bbmt.2007.12.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
73
|
Sun J, Oki A, Gaidulis L, Senitzer D. 14-OR: KIR gene polymorphism detected with a multiplex PCR-SSP method. Hum Immunol 2007. [DOI: 10.1016/j.humimm.2007.08.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
74
|
Sun JY, Wang JF, Zi NT, Jing MY, Weng XY. Gene expression profiles analysis of the growing rat liver in response to different zinc status by cDNA microarray analysis. Biol Trace Elem Res 2007; 115:169-85. [PMID: 17435260 DOI: 10.1007/bf02686028] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2006] [Revised: 06/01/2006] [Accepted: 06/16/2006] [Indexed: 10/22/2022]
Abstract
The effects of zinc on growing rats were characterized using the dietary zinc-deficient (ZD) and Zinc-overdose (ZO) models. Zinc deficiency had negative effects on the host final body weight and liver zinc content, whereas zinc overdose had positive effects. In order to identify the molecular changes in the liver responding to dietary zinc status, cDNA microarrays were used to analyze the expression pattern of 9753 genes in the livers of rats fed ZD and ZO diet for 6 wk, compared with zinc-adequate ZA. The mRNA levels for 62 genes were affected significantly by the ZD diet, whereas 66 gene transcriptions were markedly changed in the ZO diet. Those predominant gene products involved in nitrogen metabolism (glutaminase), carbohydrate metabolism (aldolase), lipid metabolism (stearoyl-CoA desaturase), growth (insulin-like growth factor-binding protein), transcription and translation (zinc-finger protein), immune (natural-killer cell), signal transduction (mitogen- activated protein kinase), and ion transportation (ATPase Na+/K+ transporting peptide) were clustered. In conclusion, a number of mammalian genes related to zinc in the liver were identified. The characterization of the genes and their products will allow a more comprehensive analysis of the role of zinc in metabolism. Furthermore, the mRNA identified could be useful in establishing the mechanisms of zinc in the pleiotropic metabolisms in vivo.
Collapse
|
75
|
Sun JY, Tong J, Zhou J. Application of nano-indenter for investigation of the properties of the elytra cuticle of the dung beetle (Copris ochus Motschulsky). ACTA ACUST UNITED AC 2006; 153:129-33. [PMID: 17054388 DOI: 10.1049/ip-nbt:20050050] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The nanomechanical properties of the multilayer elytra cuticle of the dung beetle (Copris ochus Motschulsky) were investigated in the vertical and transverse directions using a nano-indenter. The reduced modulus Ev and hardness Hv of the surface cuticle in the vertical direction obtained by nano-indentation were 3.54+/-0.12 GPa and 0.20+/-0.01 GP, respectively. The nano-indentation result showed that the reduced modulus E(t) and hardness Ht of each layer were gradually reduced from the outer layer to the inner layer in the transverse direction. Ev was less than the largest Et presented at the outer layer (7.06+/-0.54 GPa). It was supposedly formed as a result of the composite effect of the multilayer. Without consideration of the anisotropy of chitin, an experimental model was proposed to describe the nanomechanical properties of the elytra cuticle.
Collapse
|