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Liu ZW, Wang C, Fan WB, Liu ZT, Hao QQ, Long X, Lu J, Wang JG, Qin ZF, Su DS. V2O5/Ce0.6Zr0.4O2-Al2O3 as an efficient catalyst for the oxidative dehydrogenation of ethylbenzene with carbon dioxide. CHEMSUSCHEM 2011; 4:341-345. [PMID: 21394922 DOI: 10.1002/cssc.201000351] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2010] [Indexed: 05/30/2023]
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152
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Wang JG, Zhang WB, Huang BT. Some newer concepts on ethylene/α-olefin copolymerization on heterogeneous Ziegler-Natta catalysts. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/masy.19920630118] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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153
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Zhou ZL, Wang JG, Pan T, Li CC, Zhou M. [Clinical and pathologic features of 33 children with thin basement membrane nephropathy]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2011; 13:252-254. [PMID: 21426649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
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154
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Wang JG, Wu L, Zhong CJ, Ouyang ZH, Yi DL. (E)-1-(2,4-Dihy-droxy-phen-yl)-3-(4-hydroxy-phen-yl)prop-2-en-1-one monohydrate. Acta Crystallogr Sect E Struct Rep Online 2011; 67:o732. [PMID: 21522472 PMCID: PMC3052009 DOI: 10.1107/s1600536811006271] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2011] [Accepted: 02/19/2011] [Indexed: 11/10/2022]
Abstract
In the title compound, C(15)H(12)O(4)·H(2)O, the two benzene rings are not coplanar, making a dihedral angle of 7.24 (16)°. An intra-molecular hy-droxy-carbonyl O-H⋯O hydrogen bond occurs. In the crystal, four inter-molecular O-H⋯O hydrogen bonds involving the hy-droxy residues, the carbonyl group and the water mol-ecule lead to the formation of a three-dimensional network. The supra-molecular structure is further stabilized by weak C-H⋯O inter-actions.
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Ma Y, Wang JG, Wang B, Li ZM. Integrating molecular docking, DFT and CoMFA/CoMSIA approaches for a series of naphthoquinone fused cyclic α-aminophosphonates that act as novel topoisomerase II inhibitors. J Mol Model 2010; 17:1899-909. [PMID: 21107989 DOI: 10.1007/s00894-010-0898-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2010] [Accepted: 11/08/2010] [Indexed: 11/29/2022]
Abstract
Since they are potential topoisomerase II (Topo II) inhibitors, naphthoquinone fused cyclic α-aminophosphonates display anticancer activity. In order to explore the inhibitory mechanisms of these compounds, they were docked into the active site of Topo II structure, which allowed their probable binding modes to be predicted. Some meaningful results concerning their structure-activity relationships were obtained from density functional theory calculations. Models based on quantitative comparative molecular field analysis and comparative molecular similarity index analysis were derived for the steric, electrostatic, hydrophobic and H-bonding features of the compounds. The present study provides valuable results that enhance our understanding of the anticancer activities of these inhibitors and will aid the rational drug design of novel Topo II inhibitors in the future.
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Li F, Wang CH, Wang JG, Thai T, Boysen G, Xu L, Turner AL, Wolberg AS, Mackman N, Maeda N, Takahashi N. Elevated tissue factor expression contributes to exacerbated diabetic nephropathy in mice lacking eNOS fed a high fat diet. J Thromb Haemost 2010; 8:2122-32. [PMID: 20626618 PMCID: PMC5744483 DOI: 10.1111/j.1538-7836.2010.03976.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
BACKGROUND Human eNOS (NOS3) polymorphisms that lower its expression are associated with advanced diabetic nephropathy (DN), and the lack of eNOS accelerates DN in diabetic mice. Diabetes is associated with fibrin deposition. Lack of nitric oxide and fatty acids stimulates the NF-kB pathway, which increases tissue factor (TF). OBJECTIVES To test the hypothesis that TF contributes to the severity of DN in the diabetic eNOS(-/-) mice fed a high-fat diet (HF). METHODS We made eNOS(-/-) and wild-type mice diabetic with streptozotocin. Half of them were placed on HF. RESULTS Blood glucose levels were not affected by either the diet or eNOS genotype. Lack of eNOS in the diabetic mice increased urinary albumin excretion, glomerulosclerosis, interstitial fibrosis, and glomerular basement membrane thickness. HF by itself did not affect DN in the wild-type mice, but significantly enhanced DN in eNOS(-/-) mice. More than half of diabetic eNOS(-/-) mice on HF died prematurely with signs of thrombotic complications. Diabetic kidneys contained fibrin and TF, and their levels were increased by the lack of eNOS and by HF in an additive fashion. The HF diet increased the kidney expression of inflammatory genes. The increase in TF preceded DN, and administration of an anti-mouse TF antibody to diabetic mice reduced the expression of inflammatory genes. CONCLUSION Together, these data indicate a causal link between TF and the exacerbation of DN in eNOS(-/-) mice. The condition is significantly worsened by enhanced inflammatory responses to an HF diet via TF.
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Wang JG, Wu ZY, Tang JL, Teng RR, Wang EK. Electrocatalytic Oxidation of Dopamine by Ferrocene in Lipid Film Cast on a Glassy Carbon Electrode. CHINESE J CHEM 2010. [DOI: 10.1002/cjoc.20020200207] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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158
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Wang C, Fan WB, Liu ZT, Lu J, Liu ZW, Qin ZF, Wang JG. The dehydrogenation of ethylbenzene with CO2 over V2O5/CexZr1−xO2 prepared with different methods. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.molcata.2010.06.019] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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159
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Zhang JY, Wang JG, Li AH, Gong XN. Infection of Myxobolus turpisrotundus sp. n. in allogynogenetic gibel carp, Carassius auratus gibelio (Bloch), with revision of Myxobolus rotundus (s. l.) Nemeczek reported from C. auratus auratus (L.). JOURNAL OF FISH DISEASES 2010; 33:625-638. [PMID: 20487139 DOI: 10.1111/j.1365-2761.2010.01161.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Infection of a Myxobolus species, previously identified as Myxobolus rotundus, was detected in 182 of 7892 (2.31%) allogynogenetic gibel carp, Carassius auratus gibelio, in a closed pond culture system in China. Morphological and molecular data showed that this myxosporean is a different species from M. rotundus parasitizing Abramis brama in Europe and is thus designated as a new species, Myxobolus turpisrotundus. M. rotundus (s.l.) ex C. auratusauratus is a synonym of M. turpisrotundus. Plasmodia of M. turpisrotundus develop in the subepidermal tissues of the body surface resulting in an unaesthetic appearance and causing severe economic losses. Prevalence of infection with the myxosporean plasmodia varied seasonally, increasing in winter and decreasing in spring. Prevalence was positively correlated to host size, but no host sex-specificity was found. No infection was observed in other fish species (grass carp, bighead carp and yellow catfish) reared in the same pond, suggesting that the parasite has a relatively strict host specificity. Plasmodia grew gradually as the parasite developed, and reached up to a maximum 5.6 mm in diameter. Plasmodia ruptured naturally to release the mature spores and host fish completely recovered with no mortality. Release of spores and regeneration of lesions were not correlated with water temperature. Histology showed that plasmodia developed sub-epidermally, and that the wall of the plasmodia was composed of a multiple complex structure, including layers of fibroblasts, a collagenous membrane, melanophores and a layer of cup-like cells of unknown derivation and function. The cup-like cells are in direct contact with pre-sporogonic stages located in the peripheral parts of the large plasmodia. No severe host inflammatory response was seen.
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Yang JZ, Li MW, Wang JG, Lu HF, Yao XS, He JQ, Li LJ. Rapid detection of clonal expansion of T-cell receptor-beta gene in patients with HBV using the real-time PCR with DNA melting curve analysis. Hepatol Res 2010; 40:407-14. [PMID: 20070405 DOI: 10.1111/j.1872-034x.2009.00600.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
Abstract
AIM The gene melting spectral pattern (GMSP) of PCR products from 24 T-cell receptor beta chain variable (TCRBV) gene families was developed to determine sequence bias and feature of TCRBV CDR3 gene family. METHODS The assay was based on reverse transcript quantitative polymerase chain reaction and their DNA melting curves. RESULTS We discovered that the relatively conserved amino acid sequences X-Q and X-G are present in TCRBV CDR3 from patients with HBV. Further, the X of the X-Q motif is preferentially E (glutamic acid), P (proline) or T (threonine) when accompanied by the BJ2.7, BJ1.5, or BJ2.3, respectively. The frequency of sequence bias in the TCRBV gene family showed a positive correlation with the T cell receptor excision circles (TRECs) content, and an inverse correlation with the HBV DNA loading. CONCLUSION These results suggest that the GMSP assay could be used to monitor the features of TCRBV gene distribution quickly, and facilitate the further study of HBV-specific T cell in patients with HBV.
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Wu YH, Hao BJ, Hu SQ, Shi SY, Wang JG, Yang LX, Zhao Y. Laggera alata extract prevents acetamidophenol-induced liver damage in mice. Shijie Huaren Xiaohua Zazhi 2010; 18:711-715. [DOI: 10.11569/wcjd.v18.i7.711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the protective effects of Laggera alata against acetamidophenol-induced liver damage.
METHODS: The main components of Laggera alata extract (LAE) were quantitatively analyzed by the Folin-Ciocalteu method and high-pressure liquid chromatography (HPLC). Before mice were intragastrically given high-dosage acetamidophenol (1000 mg/kg), different doses of LAE (50, 100 and 200 mg/kg) was intragastrically administered to investigate its preventive effect against acetamidophenol-induced liver damage.
RESULTS: Quantitative analysis of LAE by the Folin Ciocalteu method showed that LAE contains a high content of phenolic compounds (52.6 g GAE/100 g extract). The HPLC analysis indicated that dicaffeoylquinic acids are the major components of LAE, whose content amounts to 53%. LAE at a dose of 100 mg/kg could obviously protect mice from acetamidophenol-induced death. LAE at doses of 50, 100 and 200 mg/kg (especially 100 and 200 mg/kg) significantly reduced serum AST and ALT levels in mice treated with acetamidophenol. Furthermore, LAE at all doses could improve acetamidophenol-induced hepatic injury.
CONCLUSION: LAE has potent protective effect against acetamidophenol-induced liver injury in mice. Dicaffeoylquinic acids may be the active ingredients in LAE that are responsible for the hepatoprotective effects of LAE.
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Zhang P, Wang JG, Wan JY, Liu WQ. Screening efficient siRNAs in vitro as the candidate genes for chicken anti-avian influenza virus H5N1 breeding. Mol Biol 2010; 44:37-44. [PMID: 32214469 PMCID: PMC7089267 DOI: 10.1134/s0026893310010061] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2009] [Accepted: 04/10/2009] [Indexed: 11/23/2022]
Abstract
The frequent disease outbreaks caused by avian influenza virus (AIV) not only affect the poultry industry but also pose a threat to human safety. To address the problem, RNA interference (RNAi) has recently been widely used as a potential antiviral approach. Transgenesis, in combination with RNAi to specifically inhibit AIV gene expression, has been proposed to make chickens resistant to avian influenza. For the transgenic breeding, screening the efficient siRNAs in vitro as the candidate genes is one of the most important tasks. Here, we combined an online search tool and a series of bioinformatics programs with a set of rules for designing the siRNAs targeting different mRNA regions of AIV H5N1 subtype. By this method we chose five rational siRNAs, constructed five U6 promoter-driven shRNA expression plasmids contained the siRNA genes, and used these to produce stably transfected Madin-Darby canine kidney (MDCK) cells. Data from virus titration, IFA, PUI-stained flow cytometry, real-time quantitative RT-PCR and DAS-ELISA analyses showed that all five stably transfected cell lines were effectively resistant to viral replication when exposed to 100 CCID50 of AIV, and we finally chose the most effective plasmids (pSi-604i and pSi-1597i) as the candidates for making the transgenic chickens. These findings provide baseline information for breeding transgenic chickens resistant to AIV in combination with RNAi.
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163
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Ling F, Wang JG, Liu QF, Li M, Ye LT, Gong XN. Prevention of Ichthyophthirius multifiliis infestation in goldfish (Carassius auratus) by potassium ferrate(VI) treatment. Vet Parasitol 2010; 168:212-6. [DOI: 10.1016/j.vetpar.2009.11.009] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2009] [Revised: 11/03/2009] [Accepted: 11/11/2009] [Indexed: 11/30/2022]
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164
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Pan CR, Roos M, Schmaderer C, Lutz J, Wang JG, Heemann U, Baumann M. Interrelationship between aortic stiffness and proteinuria in chronic kidney disease. J Hum Hypertens 2010; 24:593-9. [DOI: 10.1038/jhh.2009.108] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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165
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Cui YH, Wang JG, Xu W. A density functional theory study of the one-dimensional alane. NANOTECHNOLOGY 2010; 21:025702. [PMID: 19955622 DOI: 10.1088/0957-4484/21/2/025702] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The AlH(1-6), Al(2)H(1-7), Al(3)H(1-9), Al(m)H(3m) (m = 4-10), and the periodic helical structure of the one-dimensional (1D) alane are studied by means of density functional theory calculations. The helical isolated structure is more stable than those in the corresponding cyclic and other geometries. A new periodic 1D helical alane structure is predicted for the first time. The stability of this periodic 1D helical alane structure has been confirmed by its large average binding energy based on AlH(3), large energy gap of highest occupied molecular orbital and lowest unoccupied molecular orbital, and the typically double helical pi-orbital which parallels its bone structure.
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Zhang JY, Yokoyama H, Wang JG, Li AH, Gong XN, Ryu-Hasegawa A, Iwashita M, Ogawa K. Utilization of tissue habitats by Myxobolus wulii Landsberg & Lom, 1991 in different carp hosts and disease resistance in allogynogenetic gibel carp: redescription of M. wulii from China and Japan. JOURNAL OF FISH DISEASES 2010; 33:57-68. [PMID: 19912459 DOI: 10.1111/j.1365-2761.2009.01102.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Myxobolus wulii (=Myxosoma magna) was first described from the gills of goldfish, Carassius auratus auratus, in China. Subsequently, a myxosporean infecting the hepatopancreas of allogynogenetic gibel carp, C. auratus gibelio, was designated as a different species, Myxobolus guanqiaoensis, although the morphological features were almost identical to those of M. wulii. In Japan, an unidentified Myxobolus sp. was found in the gills and hepatopancreas of goldfish. Morphological and molecular analyses in the present study identified these myxosporeans as M. wulii, which was thus shown to use different habitats in the host fish. Phylogenetic analyses of small subunit ribosomal RNA gene sequences showed that M. wulii is closely related to two gill-infecting Myxobolus species, M. ampullicapsulatus and M. longisporus. Fish infected with M. wulii in the hepatopancreas exhibit swollen abdomens and chronic mortality. Hepatopancreas tissues are virtually destroyed and replaced with plasmodia of M. wulii. A remarkable difference in susceptibility to M. wulii between two clones of allogynogenetic gibel carp was observed, suggesting that resistance to the myxosporean infection was established in a clone of fish bred by allogynogenesis.
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Zhang P, Wang JG, Wan JG, Liu WQ. [Screening efficient siRNAs in vitro as the candidate genes for chicken anti-avian influenza virus H5N1 breeding]. Mol Biol (Mosk) 2010; 44:42-50. [PMID: 20198858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The frequent disease outbreaks caused by avian influenza virus not only affect the poultry industry but also pose a threat to human safety. To address the problem, RNA interference (RNAi) has recently been widely used as a potential antiviral approach. Transgenesis in combination with RNAi to specifically inhibit avian enza virus gene expression has been proposed to make chickens resistant to the infection. For the transgenic breeding, screening in vitro efficient siRNAs as the candidate genes is one of the most important tasks. Here, we combined an online search tool and a series of bioinformatics programs with a set of rules for designing siRNAs targeted towards different mRNA regions of H5N1 avian influenza virus. Five rational siRNAs were chosen by this method, five U6 promoter-driven shRNA expression plasmids containing the siRNA genes were constructed and used for producing stably transfected MDCK cells. The data obtained by virus titration, IFA, PI-stained flow cytometry, real-time quantitative RT-PCR, and DAS-ELISA analyses showed that all five stably transfected cell lines we re resistant to virusreplication when exposed to 100 CCID50 of avian influenza virus H5N1. Finally, most effective plasmids (pSi-604i and pSi-1597i) as the candidates for making the transgenic chickens were chosen. These findings provide baseline information on use of RNAi technique for breeding transgenic chickens resistant to avian influenza virus.
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Zhu L, Wang JG, Liu M, Guo XJ, Guo YL, Guo YM, Wang C. [Evaluation of peripheral pulmonary embolism by different thickness of CTPA imagings]. ZHONGHUA JIE HE HE HU XI ZA ZHI = ZHONGHUA JIEHE HE HUXI ZAZHI = CHINESE JOURNAL OF TUBERCULOSIS AND RESPIRATORY DISEASES 2010; 33:37-42. [PMID: 20368023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
OBJECTIVE to evaluate whether there are difference among different thickness of CTPA imagings for detection of emboli in peripheral pulmonary arteries. METHODS CTPA Images of 97 patients with acute pulmonary embolism were divided into four series for each patient: 0.625 mm thick original transaxial soure images and 3 series of reconstructed images using the MIP technique with slab thicknesses of 1.25 mm, 2.5 mm, and 5.0 mm. The difference was compared among 4 series of CTPA images for detection of emboli in peripheral pulmonary arteries, and the agreement of 2 observers for detection of emboli in peripheral pulmonary arteries in different thickness images was tested. Chi-Square test was taken for comparison of 4 series of CTPA images for detection of emboli in peripheral pulmonary arteries. Kappa test was taken for the agreement of 2 observers for detection of emboli in peripheral pulmonary arteries. RESULTS the average images number of 0.625 mm, 1.25 mm, 2.5 mm, 5.0 mm thickness imaging was 403, 201, 101, and 53, respectively. For detecting clots in segmental pulmonary arteries, there was statistically significant difference between 5.0 mm thick imaging and other 3 series imagings (chi(2) = 60.099, P < 0.01), but agreement of 2 observers in each series imaging was excellent (value of κ from 0.751 to 0.973).For clots in sub-segment pulmonary arteries, no statistical significant difference was observed between 0.625 mm and 1.25 mm thick imagings (chi(2) = 1.051, P > 0.05), and superior to 2.5 mm and 5.0 mm thick images (chi(2) = 151.892, 204.553, respectively, P < 0.01), but agreement of two observers in each series imaging was good (value of kappa from 0.611 to 0.935). CONCLUSION compared with 0.625 mm thick transaxial imaging, 1.25 mm thick MIP imaging is equally sensitive for detecting emboli in peripheral pulmonary arteries, but needs fewer images and less time for image reading.
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Arima H, Wang JG, Huang Y, Heeley E, Skulina C, Parsons MW, Peng B, Li Q, Su S, Tao QL, Li YC, Jiang JD, Tai LW, Zhang JL, Xu E, Cheng Y, Morgenstern LB, Chalmers J, Anderson CS. Significance of perihematomal edema in acute intracerebral hemorrhage: the INTERACT trial. Neurology 2009; 73:1963-8. [PMID: 19996072 DOI: 10.1212/wnl.0b013e3181c55ed3] [Citation(s) in RCA: 123] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Uncertainty surrounds the effects of cerebral edema on outcomes in intracerebral hemorrhage (ICH). METHODS We used data from the INTERACT trial to determine the predictors and prognostic significance of "perihematomal" edema over 72 hours after ICH. INTERACT included 404 patients with CT-confirmed ICH and elevated systolic blood pressure (BP) (150-220 mm Hg) who had the capacity to commence BP lowering treatment within 6 hours of ICH. Baseline and repeat CT (24 and 72 hours) were performed using standardized techniques, with digital images analyzed centrally. Predictors of growth in edema were determined using generalized estimating equations, and its effects on clinical outcomes were estimated using a logistic regression model. RESULTS Overall, 270 patients had 3 sequential CT scans available for analyses. At baseline, there was a highly significant correlation between hematoma and perihematomal edema volumes (r(2) = 0.45). Lower systolic BP and baseline hematoma volume were independently associated with absolute increase in perihematomal edema volume. History of hypertension, baseline hematoma volume, and earlier time from onset to CT were independently associated with relative increase in edema volume. Both absolute and relative increases in perihematomal edema growth were significantly associated with death or dependency at 90 days after adjustment for age, gender, and randomized treatment, but not when additionally adjusted for baseline hematoma volume. CONCLUSIONS The degree of, and growth in, perihematomal edema are strongly related to the size of the underlying hematoma of acute intracerebral hemorrhage, and do not appear to have a major independent effect in determining the outcome from this condition.
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Yi M, Wang R, Wang JG, Zhou SY, Zhang SK, Liu HM. Clinicopathological features of solid-pseudopapillary tumor of the pancreas: an analysis of 14 cases. Shijie Huaren Xiaohua Zazhi 2009; 17:3155-3159. [DOI: 10.11569/wcjd.v17.i30.3155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To analyze the clinicopathological and immunohistochemical features of solid-pseudopapillary tumors of the pancreas (SPTP).
METHODS: The clinicopathological and immunohistochemical data of 14 SPTP patients and 5 islet cell tumor patients (including 3 cases of non-functional islet cell tumors and 2 cases of functional islet cell tumors) were analyzed retrospectively.
RESULTS: The ratio of male to female in 14 SPTP patients was 1:6. Their median age was 28 years old. The median diameter of the tumors was 7.25 cm. Histologically, the tumors were composed of pseudopapillary and solid structures. The solid areas were composed of uniform cells. The pseudopapillary structure with a fibrovascular core was remarkable. Immunohistochemically, the tumors were negative for E-cadherin and chromogranin A, but positive for β-catenin and CD10. The positive rates of nuclear and cytoplasmic β-catenin staining in SPTP were 100% and 78.5% (11/14), respectively. In contrast, no membrane β-catenin staining was detected.
CONCLUSION: SPTP is a rare type of tumor that has low malignant potential and remarkable pseudopapillary and is predominantly found in young women. Abnormal E-cadherin and β-catenin expression may be related to the tumorigenesis of SPTP.
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Zhu L, Wang JG, Liu M, Guo XJ, Guo YL, Guo YM, Wang C. [Value of combined wells score and D-dimer test on diagnosing patients with deep venous thrombosis]. ZHONGHUA XIN XUE GUAN BING ZA ZHI 2009; 37:818-822. [PMID: 20128381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVE To evaluate the value of Wells score or/and D-dimer test on diagnosing or excluding deep venous thrombosis (DVT). METHODS Patients with suspected DVT were retrospectively analyzed. All patients underwent clinical assessment, D-dimer assay and bilateral lower extremity compression sonography within 48 hours of admission. The sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) for diagnosing DVT by Wells score, D-dimer test, and combined Wells score and D-dimer were compared. RESULTS A total of 274 patients were analyzed. If low probability was defined as negative and moderate and high probabilities were defined as positive, the sensitivity, specificity, PPV and NPV of the Wells score were 78.4%, 66.1%, 52.3% and 86.6%, respectively. At a cut-off of 500 microg/L, the sensitivity, specificity, PPV and NPV of D-dimer test were 73.9%, 66.1%, 50.8% and 84.2%, respectively. If low probability and D-dimer < 500 microg/L were defined as negative, moderate and high probabilities and D-dimer > or = 500 microg/L were defined as positive, the sensitivity, specificity, PPV and NPV of the combined Wells score and D-dimer test were 88.3%, 76.8%, 67.1% and 92.5%, respectively. CONCLUSION For clinical suspected DVT patients, DVT diagnosis could be reliably obtained by combined Wells score and D-dimer test.
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Wang J. A research into the large-scaled spatial forms of cities based on urban design. ACTA ACUST UNITED AC 2009. [DOI: 10.1007/s11431-009-0294-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Xu M, Li XY, Wang JG, Wang XJ, Huang Y, Cheng Q, Huang HE, Li R, Xiang J, Tan JR, Dai M, Ning G. Retinol-binding protein 4 is associated with impaired glucose regulation and microalbuminuria in a Chinese population. Diabetologia 2009; 52:1511-9. [PMID: 19506831 DOI: 10.1007/s00125-009-1386-8] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2009] [Accepted: 04/15/2009] [Indexed: 12/14/2022]
Abstract
AIMS/HYPOTHESIS Increased retinol-binding protein 4 (RBP4) has been reported in association with insulin resistance and type 2 diabetes. We aimed to investigate the association of serum RBP4 with impaired glucose regulation and microalbuminuria in Chinese adults aged 40 years or older. METHODS Serum RBP4 was measured in 763 individuals with normal glucose regulation, 508 with impaired glucose regulation and 524 newly diagnosed diabetic patients. Serum RBP4 was measured using ELISA and urine albumin/creatinine ratio was used to determine the urinary albumin excretion. RESULTS Serum RBP4 concentrations were significantly higher in participants with isolated impaired fasting glucose, isolated impaired glucose tolerance, combined impaired fasting glucose/impaired glucose tolerance and diabetes than in those with normal glucose regulation, whereas serum RBP4 levels were not different in the four groups with dysregulation of glucose metabolism. RBP4 was associated with a higher risk for impaired glucose regulation (OR 1.011 for each 1 microg/ml increase in RBP4, 95% CI 1.000-1.022, p = 0.04) after adjustment for sex, age, BMI, current smoking and alcohol intake, family history of diabetes, insulin resistance, triacylglycerol, total cholesterol, and HDL- and LDL-cholesterol; the corresponding OR of combined impaired glucose regulation and type 2 diabetes was 1.022 (95% CI 1.009-1.035, p = 0.0009). RBP4 was associated with the risk of microalbuminuria (OR 1.023, 95% CI 1.004-1.042, p = 0.01) after adjustment for sex, age, smoking habit and alcohol intake, BMI, waist/hip ratio, homeostasis model assessment of insulin resistance, GFR, triacylglycerol, total cholesterol, and HDL- and LDL-cholesterol. CONCLUSIONS/INTERPRETATION Serum RBP4 level is closely associated with impaired glucose regulation and is an independent risk factor for microalbuminuria.
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Zhang SK, Wang JG, Piao YS, Lu DH. A case of myxoid chondrosarcoma arising from caput costae. AI ZHENG = AIZHENG = CHINESE JOURNAL OF CANCER 2009; 28:894-896. [PMID: 20380079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
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175
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Zhang SK, Wang JG, Zhou SY, Zhang ML, Wu CH. Clinicopathological features of intestinal Behcet's disease: an analysis of 3 cases. Shijie Huaren Xiaohua Zazhi 2009; 17:1689-1692. [DOI: 10.11569/wcjd.v17.i16.1689] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To explore the clinical and pathological features, and differential diagnosis of intestinal Behcet's disease (BD).
METHODS: Three cases of intestinal BD were collected in the study. Their clinical and histological findings were examined. The patients met the diagnostic criteria proposed by the international study group of BD. The patients had gastrointestinal symptoms and were accompanied by several main BD features.
RESULTS: The intestinal ulcers of BD mostly occurred in the contralateral of mesenteric, round and deep. Histologically, vascular and mucosa around intestinal ulcer were infiltrated by the lymphocytes. Lymphoproliferation was observed, and mainly manifested as vasculitis. Glucocorticoid and immunosuppressant were the dominant prescriptions. The prognosis of intestinal BD remained unsatisfactory.
CONCLUSION: Early diagnosis of intestinal BD depends on comprehensive analysis of patients' history and clinical symptoms. There is lack of specific treatment for Intestinal BD. General surgery is unnecessary with the exception of severe complications.
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Liu ZQ, Sun L, Wang JG, Han J, Zhao YK, Zhou B. Free-Radical-Initiated Coupling Reaction of Alcohols and Alkynes: Not C−O but C−C Bond Formation. Org Lett 2009; 11:1437-9. [DOI: 10.1021/ol900145u] [Citation(s) in RCA: 112] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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177
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Wang JG, Lee PKM, Dong YH, Pang SS, Duggleby RG, Li ZM, Guddat LW. Crystal structures of two novel sulfonylurea herbicides in complex with Arabidopsis thaliana acetohydroxyacid synthase. FEBS J 2009; 276:1282-90. [DOI: 10.1111/j.1742-4658.2009.06863.x] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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178
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Li YD, Ye BQ, Zheng SX, Wang JT, Wang JG, Chen M, Liu JG, Pei XH, Wang LJ, Lin ZX, Gupta K, Mackman N, Slungaard A, Key NS, Geng JG. NF-kappaB transcription factor p50 critically regulates tissue factor in deep vein thrombosis. J Biol Chem 2008; 284:4473-83. [PMID: 19095643 DOI: 10.1074/jbc.m806010200] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
NF-kappaB transcription factors regulate the expression of tissue factor (TF), a principal initiator of the coagulation cascade. Dominant among them is the p50/p65 heterodimer. Here we report that Andrographolide (Andro; a p50 inhibitor) and genetic deletion of p50 attenuated TF activity in stimulated endothelial cells and monocytes/macrophages. Results of the electrophoretic mobility "supershift" assay and chromatin immunoprecipitation demonstrated the direct interaction of the p50/p65 heterodimer with the NF-kappaB site of the human TF promoter. Andro-treated and p50 null mice both exhibited blunted TF expression and reduced venous thrombosis, which were recapitulated by an anti-murine TF antibody in vivo. Our findings thus indicate that regulation of TF by NF-kappaB transcription factor p50 is essential for the pathogenesis of deep vein thrombosis and suggest that specific inhibitors of p50, such as Andro, may be therapeutically valuable for preventing and perhaps treating venous thrombosis.
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179
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Zhang ZH, Jiang X, Wang JG. Role of cycloxygenase-2 in ulcerative colitis. Shijie Huaren Xiaohua Zazhi 2008; 16:3533-3538. [DOI: 10.11569/wcjd.v16.i31.3533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Cycloxygenase-2 (COX-2) plays an important role in the development and prognosis of ulcerative colitis. First, it may initiate inflammatory process. Many studies show that expression of COX-2 is significantly increased in the lesion of ulcerative colitis. During regenerative phase, inhibition of COX-2 may hinder the healing process, and thereafter exacerbate symptoms. COX-2-induced regeneration is monitored under delicate systems. If the balance of this system is disturbed by unknown factors, dysplasia or even carcinoma may develop.
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180
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Kumar N, Tian ML, Wang JG, Watts W, Kindt J, Mallouk TE, Chan MHW. Investigation of superconductivity in electrochemically fabricated AuSn nanowires. NANOTECHNOLOGY 2008; 19:365704. [PMID: 21828885 DOI: 10.1088/0957-4484/19/36/365704] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We have fabricated intermetallic AuSn nanowires by electrochemical deposition in porous polycarbonate membranes. By controlling the deposition parameters, nanowires of a single intermetallic phase, namely AuSn, can be fabricated. AuSn nanowires are found to be crystalline and fairly resistant to oxidation. Electrical transport measurements on arrays of nanowires showed a superconducting transition temperature, T(c)∼1.5 K. In addition, four-probe measurements were made on individual freestanding nanowires with electrodes formed by a focused ion beam (FIB). Results from the two sets of measurements are found to be in close agreement.
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Zhu L, Guo YM, Wang JG. [The prevalence of deep venous thrombosis in 337 suspected pulmonary embolism patients]. ZHONGHUA JIE HE HE HU XI ZA ZHI = ZHONGHUA JIEHE HE HUXI ZAZHI = CHINESE JOURNAL OF TUBERCULOSIS AND RESPIRATORY DISEASES 2008; 31:603-606. [PMID: 19080408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
OBJECTIVE The purpose of our study was to evaluate the prevalence of deep venous thrombosis(DVT) in suspected pulmonary embolism patients. METHODS From January 2004 to June 2006, all patients who underwent CT pulmonary angiography combined with lower extremity CT venography or lower extremity sonography were consecutively enrolled in 2 hospitals. The prevalence of deep venous thrombosis in suspected pulmonary embolism patients and the location of DVT were analyzed. The statistical analyses were performed with the SPSS 11.5 statistical software, frequency analysis was performed for descriptive results and chi-square analysis was performed for comparison between groups. RESULTS Three hundred and thirty-seven consecutive patients were enrolled. There were 189 men and 148 women. The median age was 62 (range from 19 to 84 years old). Pulmonary embolism were diagnosed by CT pulmonary angiography in 144 patients, and DVT was diagnosed by CT venography or lower extremity sonography in 100 patients. The prevalence of DVT in pulmonary embolism patients was 44%, and 76% DVT was located in proximal lower extremity veins. The prevalence of pulmonary embolism in DVT patients was 63%. CONCLUSION The prevalence of DVT in patients with pulmonary embolism and the prevalence of pulmonary embolism in patients with DVT are both high (44% vs 63%); therefore it is necessary to examine the pulmonary arteries and the lower extremity deep veins at the same time.
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Wang FQ, Huang XL, Li AQ, Wang JG, Zhang FH, Cui YB, Yi Y, Chen SY. [Genotypes of hepatitis B virus in Henan Luohe area]. ZHONGHUA SHI YAN HE LIN CHUANG BING DU XUE ZA ZHI = ZHONGHUA SHIYAN HE LINCHUANG BINGDUXUE ZAZHI = CHINESE JOURNAL OF EXPERIMENTAL AND CLINICAL VIROLOGY 2008; 22:257-259. [PMID: 19105336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
OBJECTIVE To determine the main genotype of hepatitis B virus (HBV) prevailed in Henan Luohe area. METHODS Serum specimens were collected from 94 HBsAg positive individuals, and HBV S gene were obtained by PCR amplifying, and the gene sequences were analyzed and the polygenetic tree was drawn by the software MEGA3. RESULTS About 75.7% samples of HBV S gene clustered in genotype C, about 20% samples clustered at genotype B in the HBV polygenetic tree, about 4.3% samples clustered at genotype D in the HBV polygenetic tree. CONCLUSION The main genotype of hepatitis B virus prevalent in Henan Luohe is genotype C, genotype B is rarely seen, and genotype D is rarely seen.
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Matthey D, Wang JG, Wendt S, Matthiesen J, Schaub R, Laegsgaard E, Hammer B, Besenbacher F. Enhanced Bonding of Gold Nanoparticles on Oxidized TiO2(110). Science 2007; 315:1692-6. [PMID: 17379802 DOI: 10.1126/science.1135752] [Citation(s) in RCA: 434] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
We studied the nucleation of gold clusters on TiO2(110) surfaces in three different oxidation states by high-resolution scanning tunneling microscopy. The three TiO2(110) supports chosen were (i) reduced (having bridging oxygen vacancies), (ii) hydrated (having bridging hydroxyl groups), and (iii) oxidized (having oxygen adatoms). At room temperature, gold nanoclusters nucleate homogeneously on the terraces of the reduced and oxidized supports, whereas on the hydrated TiO2(110) surface, clusters form preferentially at the step edges. From interplay with density functional theory calculations, we identified two different gold-TiO2(110) adhesion mechanisms for the reduced and oxidized supports. The adhesion of gold clusters is strongest on the oxidized support, and the implications of this finding for catalytic applications are discussed.
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Wang JG, Mahmud SA, Nguyen J, Slungaard A. Thiocyanate-dependent induction of endothelial cell adhesion molecule expression by phagocyte peroxidases: a novel HOSCN-specific oxidant mechanism to amplify inflammation. THE JOURNAL OF IMMUNOLOGY 2007; 177:8714-22. [PMID: 17142773 DOI: 10.4049/jimmunol.177.12.8714] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Both eosinophil peroxidase (EPO) and neutrophil myeloperoxidase (MPO) preferentially oxidize SCN(-) to generate HOSCN, a weak, sulfhydryl-reactive oxidant, as a major physiologic product. We here show that HOSCN is a uniquely potent phagocyte oxidant inducer of E-selectin, ICAM-1, and VCAM-1 expression in HUVEC as detected by Western blot and flow cytometry. EMSA and inhibitor studies show that HOSCN up-regulation of these adhesion molecules is transcriptionally mediated through a mechanism that is dependent upon activation of the NF-kappaB p65/p50 transcription factor and constitutively suppressed by PI3K-Akt pathway activity. HUVEC monolayers exposed to HOSCN bind 8-fold more neutrophils and 3- to 4-fold more Aml14.3D10 cells (a differentiated cell line model of mature eosinophils) than control monolayers. Blocking Ab studies confirm the involvement of E-selectin and ICAM-1 but not VCAM-1 in neutrophil adhesion and of all three in Aml14.3D10 adhesion. Intraperitoneal injection of HOSCN evoked an 8-fold increase in neutrophil peritoneal extravasation. In addition to NF-kappaB, HOSCN also activates the potentially proinflammatory transcription factors Stat4, CDP, GRE, CBF, Ets-1/PEA3, and TFIID, a pattern easily distinguishable from that induced by LPS. These results suggest that phagocyte peroxidases function to amplify inflammation through a novel, HOSCN-specific oxidant mechanism.
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185
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Zhao WG, Wang JG, Li ZM, Yang Z. Synthesis and antiviral activity against tobacco mosaic virus and 3D-QSAR of α-substituted-1,2,3-thiadiazoleacetamides. Bioorg Med Chem Lett 2006; 16:6107-11. [DOI: 10.1016/j.bmcl.2006.05.043] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2005] [Revised: 05/03/2006] [Accepted: 05/16/2006] [Indexed: 11/25/2022]
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186
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Wang JG, Pan L, Wu B, Wang M. Familial characteristics of kidney-yang deficiency and cold syndrome. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2006; 69:1939-50. [PMID: 16982532 DOI: 10.1080/15287390600751322] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Family investigation is a reliable model to study the effects of both genetic and environmental factors on human health. This article studies kidney-yang deficiency syndrome and cold syndrome through family investigation and cDNA microarray technology, exploring the effects of both genetic and environmental factors on the health of family members. Particularly, these two syndromes were first assessed by the accumulated clinical scores measured by 40-item scoring tables among 15 family members. The family patterns were obtained and the correlation of these two syndromes was determined. Then the gene differential expression profiles among 12 family members were obtained using an 18,816 clones cDNA microarray. The profiles of the patients with typical kidney-yang deficiency syndrome and cold syndrome were compared to those of normal members and 89 differential expression genes were found. Further, only 22 genes were identified as known functions, and most (16 genes) were associated with the regulation of metabolism, temperature feeling, and growth. Therefore, the formation and development of these two syndromes have not only genetic but also environmental factors, including living conditions and lifestyle.
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187
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Wang JG, Xiao YJ, Li YH, Ma Y, Li ZM. Identification of some novel AHAS inhibitors via molecular docking and virtual screening approach. Bioorg Med Chem 2006; 15:374-80. [PMID: 17049866 DOI: 10.1016/j.bmc.2006.09.050] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2006] [Revised: 09/22/2006] [Accepted: 09/23/2006] [Indexed: 11/26/2022]
Abstract
Acetohydroxyacid synthase (AHAS; EC 2.2.1.6) catalyzes the first common step in branched-chain amino acid biosynthesis. This enzyme is an important target for the design of environmental-benign herbicides. Based on the crystal structure of AHAS/sulfonylurea complex, we have carried out computational screening of the ACD-3D database in order to look for novel non-sulfonylurea inhibitors of AHAS for the first time. Three novel compounds were found to inhibit plant AHAS in vitro among 14 procured compounds. One compound showed promising activity in vivo for rape root growth inhibition bioassay. This research provided useful clues for further design and discovery of AHAS inhibitors.
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188
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Wu B, Wang M, Wang JG, Pan L, Hui KM. Establishment of a Discriminant Mathematical Model for Diagnosis of Deficiency-Cold Syndrome Using Gene Expression Profiling. J Altern Complement Med 2006; 12:751-61. [PMID: 17034281 DOI: 10.1089/acm.2006.12.751] [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: 11/13/2022] Open
Abstract
OBJECTIVE To screen diagnostic markers of Deficiency-Cold syndrome by gene expression profile and to establish a discriminant mathematical milliliters model for the clinical diagnosis of this syndrome based on a support vector machine (SVM). METHODS A family suffering from Deficiency-Cold syndrome is chosen for this study. This family has 5 patients with Deficiency-Cold syndrome and 10 normal members. The peripheral blood samples for these 5 patients and 5 normal members are tested by using cDNA microarray with 18,816 clones to get their differential expression genes. These genes are further explored to understand their biological functions and pathways through existing databases. A SVM model for clinical diagnosis is then developed based on these differential expression genes. RESULTS A total of 83 differential expression genes were identified between patients and normal members, in which 21 genes were recorded in the FATIGO database and 16 genes were related to metabolism. Eight (8) pathways were sorted out in the KEGG database, and half pathways were associated with human metabolism. A discriminant mathematical model based on a support vector machine successfully predicted a normal person and a patient with heavy Deficiency-Cold syndrome based on their gene differential expression profiles. Thus, this model may classify the Deficiency-Cold syndrome. CONCLUSION This work demonstrates that the differential expression genes can be used to identify normal persons and patients with Deficiency-Cold syndrome. Deficiency-Cold syndrome is mainly associated with the metabolism-related gene regulations. In addition, the discriminant mathematical model based on a support vector machine is applicable to the clinical diagnosis for Deficiency-Cold syndrome.
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189
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Wang JG, Hammer B. Role of Au(+) in supporting and activating Au(7) on TiO(2)(110). PHYSICAL REVIEW LETTERS 2006; 97:136107. [PMID: 17026054 DOI: 10.1103/physrevlett.97.136107] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2006] [Indexed: 05/03/2023]
Abstract
The adhesion properties and catalytic activity of rutile TiO(2)(110)-supported Au(7) nanoclusters in different oxidation states are investigated by means of density functional theory. The calculations cover both surface science conditions of reduced TiO(2) and real catalyst conditions of oxidized (alkaline) TiO(2) supports. Large adhesion energies of Au(7) are found only when modeling real catalysts where the cluster becomes cationic with Au(+) ions in Au-O or Au-OH bonds. The full catalytic cycle for oxidation of CO by O(2) over Au(7) on alkaline TiO(2)(110) is calculated and found to involve only small activation barriers. In the presence of the CO reductant, the Au(+) sites are capable of cycling between bonding of atomic and molecular oxygen. We confirm our findings by comparison of calculated and experimental infrared stretch frequency data for adsorbed CO.
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190
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Wang JG, Hammer B. Density functional theory study of water dissociation in a double water bilayer with or without coadsorption of CO on Pt(111). J Chem Phys 2006; 124:184704. [PMID: 16709128 DOI: 10.1063/1.2192514] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Using density functional theory, we investigate the structure of the double water bilayer with or without coadsorption of CO on Pt(111). The double water bilayer consists of two bilayers. Each bilayer is buckled with every second water molecule being closer to the surface than every other water molecule. CO is found to adsorb most strongly when substituting in the first bilayer, the water molecule closest to the surface. Dissociation of H2O in the water bilayer (with or without CO) is further considered. A great number of pathways for the dissociation are studied. These include homolytic pathways where both dissociation products end up adsorbed on the Pt surface and heterolytic pathways where only the OH is adsorbed, while a proton is transferred to the water adlayers. We find that the heterolytic dissociation pathways are energetically more favorable than the homolytic ones, yet they are all rather endothermic. The most favorable pathways found have reaction energies of 0.60 and 0.52 eV without and with CO present. The corresponding activation energies are 0.99 and 0.53 eV, respectively.
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Xing HC, Li LJ, Xu KJ, Shen T, Chen YB, Sheng JF, Chen Y, Fu SZ, Chen CL, Wang JG, Yan D, Dai FW, Zheng SS. Protective role of supplement with foreign Bifidobacterium and Lactobacillus in experimental hepatic ischemia-reperfusion injury. J Gastroenterol Hepatol 2006; 21:647-56. [PMID: 16677148 DOI: 10.1111/j.1440-1746.2006.04306.x] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
BACKGROUND AND AIM Intestinal microflora play a crucial role in some severe liver diseases. The purpose of this study was to evaluate the effects of a Lactobacillus strain and a Bifidobacterium strain on ischemia-reperfusion (I/R) liver injury. METHODS Rats were divided into six groups. Each group received either Bifidobacterium Catenulatum ZYB0401; Lactobacillus Fermentum ZYL0401; a mixture of these two bacterial strains; gentamicin; or saline by daily gavage for 7 days. On the sixth day, all rats, except those in the control group, were subjected to 20 min of liver ischemia. After 22 h of hepatic reperfusion, liver enzymes and histology, malondialdehyde (MDA), superoxide dismutase (SOD), endotoxemia, serum tumor necrosis factor-alpha (TNF-alpha), intestinal bacteria, intestinal mucosal ultrastructure, and bacterial translocation were studied. RESULTS All administered bacteria increased intestinal Bifidobacterium and Lactobacillus, decreased endotoxemia (P < 0.01), alanine aminotransferase (ALT) (P < 0.01), and markedly ameliorated liver histology and intestinal mucosal ultrastructure. Only rats treated with Bifidobacterium Catenulatum ZYB0401 and Lactobacillus Fermentum ZYL0401 showed reduced incidence of bacterial translocation to the kidney (P < 0.05), associated with decreased serum TNF-alpha and liver MDA (P < 0.05) and increased liver SOD (P < 0.05) compared to the I/R group. Gentamicin decreased almost all kinds of intestinal bacteria (P < 0.01) and decreased ALT (P < 0.01) and serum TNF-alpha, but failed to reduce both endotoxemia and the incidence of bacterial translocation and had no effects on liver MDA and SOD. CONCLUSION Bifidobacterium Catenulatum ZYB0401 in combination with Lactobacillus Fermentum ZYL0401 could be useful in restoring intestinal microflora and in preventing liver injury in hepatic I/R of rats.
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192
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Zhang JY, Wang JG, Li AH, Gong XL, Cai TZ. Redescription of Myxobolus pyramidis Chen, 1958(Myxosporea: Bivalvulida). Parasitol Res 2006; 99:65-9. [PMID: 16482479 DOI: 10.1007/s00436-005-0123-6] [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] [Received: 09/30/2005] [Accepted: 12/22/2005] [Indexed: 10/25/2022]
Abstract
Redescription of Myxobolus pyramidis Chen, 1958, from gill lamellae of allogynogenetic gibel carp, Carassius auratus gibelio (Bloch), is presented in this paper to complete Chen's description. The diagnostic characters of the myxosporidia are: ovoid round, greyish-white polysporous plasmodia, averaging (159+/-21)x(72+/-6.5) mum in size; spore pyriform in front view with smooth surface and symmetrical valves, convex-shaped in sutural view with straight and thick sutural line, averaging (10.5+/-1.1)x(10.3+/-0.9)x(6.1+/-0.2) mum in size; two equal pyriform polar capsules averaging (5.5+/-0.7)x(3.5+/-0.2) mum in size with distinct intercapsular process and polar filament wounded in five to six coils. The histological effects of the pathogen were observed by light microscopy, and the parasite-host relationship was discussed.
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Zhang JY, Wang JG, Wu YS, Li M, Li AH, Gong XL. A combined phage display ScFv library against Myxobolus rotundus infecting crucian carp, Carassius auratus auratus (L.), in China. JOURNAL OF FISH DISEASES 2006; 29:1-7. [PMID: 16351693 DOI: 10.1111/j.1365-2761.2005.00666.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Immunological methods have been developed for the diagnosis of Myxobolus rotundus but their use has been limited for the prevention and therapy of this serious parasitic pathogen. Phage display antibody libraries are a powerful technique for the development of antibodies to molecules of interest and have advantages over traditional hybridroma approaches. In the present study, four antigen fractions related to M. rotundus were prepared and a combined phage display single-chain antibody fragments (ScFv) library was constructed against this parasite. Preliminary analysis indicated that a combined antibody library of about 2.08 x 10(5) individual clones and high diversity was generated. After four rounds of screening (bio-panning) against soluble spore protein prepared from lysed, intact, mature M. rotundus spores, a strain monoclonal phage display ScFv, termed pCAN-6H9, with better affinity, was isolated. The pCAN-6H9 gene fragment was sequenced and analysed. The specificity of pCAN-6H9 was further demonstrated by dot-blot. In competition enzyme-linked immunosorbent assay, both the original and enriched phage-displayed ScFv repertoire showed significant inhibition of mouse anti-M. rotundus serum binding to coated antigen, while the inhibition rate of monoclonal pCAN-6H9 phage particles was only 11.83%.
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MESH Headings
- Animals
- Antibodies, Monoclonal/biosynthesis
- Antibodies, Monoclonal/genetics
- Antibodies, Protozoan/biosynthesis
- Antibodies, Protozoan/genetics
- Antibody Affinity
- Antigens, Protozoan/immunology
- China
- Enzyme-Linked Immunosorbent Assay/methods
- Enzyme-Linked Immunosorbent Assay/veterinary
- Eukaryota/genetics
- Eukaryota/immunology
- Female
- Fish Diseases/immunology
- Fish Diseases/parasitology
- Genetic Vectors/analysis
- Genetic Vectors/genetics
- Goldfish/parasitology
- Hybridomas
- Mice
- Mice, Inbred BALB C
- Peptide Library
- Polymerase Chain Reaction/methods
- Polymerase Chain Reaction/veterinary
- Protozoan Infections, Animal/immunology
- Protozoan Infections, Animal/parasitology
- Sensitivity and Specificity
- Spores, Protozoan/genetics
- Spores, Protozoan/immunology
- Spores, Protozoan/isolation & purification
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Wang JG, Li ZM, Ma N, Wang BL, Jiang L, Pang SS, Lee YT, Guddat LW, Duggleby RG. Structure-activity relationships for a new family of sulfonylurea herbicides. J Comput Aided Mol Des 2005; 19:801-20. [PMID: 16374672 DOI: 10.1007/s10822-005-9028-9] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2005] [Accepted: 11/07/2005] [Indexed: 11/29/2022]
Abstract
Acetohydroxyacid synthase (AHAS; EC 2.2.1.6) catalyzes the first common step in branched-chain amino acid biosynthesis. The enzyme is inhibited by several chemical classes of compounds and this inhibition is the basis of action of the sulfonylurea and imidazolinone herbicides. The commercial sulfonylureas contain a pyrimidine or a triazine ring that is substituted at both meta positions, thus obeying the initial rules proposed by Levitt. Here we assess the activity of 69 monosubstituted sulfonylurea analogs and related compounds as inhibitors of pure recombinant Arabidopsis thaliana AHAS and show that disubstitution is not absolutely essential as exemplified by our novel herbicide, monosulfuron (2-nitro-N-(4'-methyl-pyrimidin-2'-yl) phenyl-sulfonylurea), which has a pyrimidine ring with a single meta substituent. A subset of these compounds was tested for herbicidal activity and it was shown that their effect in vivo correlates well with their potency in vitro as AHAS inhibitors. Three-dimensional quantitative structure-activity relationships were developed using comparative molecular field analysis and comparative molecular similarity indices analysis. For the latter, the best result was obtained when steric, electrostatic, hydrophobic and H-bond acceptor factors were taken into consideration. The resulting fields were mapped on to the published crystal structure of the yeast enzyme and it was shown that the steric and hydrophobic fields are in good agreement with sulfonylurea-AHAS interaction geometry.
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Wang JG, Li WX, Borg M, Gustafson J, Mikkelsen A, Pedersen TM, Lundgren E, Weissenrieder J, Klikovits J, Schmid M, Hammer B, Andersen JN. One-dimensional PtO2 at Pt steps: formation and reaction with CO. PHYSICAL REVIEW LETTERS 2005; 95:256102. [PMID: 16384475 DOI: 10.1103/physrevlett.95.256102] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2005] [Indexed: 05/05/2023]
Abstract
Using core-level spectroscopy and density functional theory we show that a one-dimensional (1D) oxide structure forms at the steps of the Pt(332) surface after exposure. The 1D oxide is found to be stable in an oxygen pressure range, where bulk oxides are only metastable, and is therefore argued to be a precursor to the Pt oxidation. As an example of the consequences of such a precursor exclusively present at the steps, we investigate the reaction of CO with oxygen covered Pt(332). Albeit more strongly bound, the oxidic oxygen is found to react more easily with CO than oxygen chemisorbed on the Pt terraces.
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Tang YP, Wang JG. [The influence of acetylcholine on N receptor beta-subunit of the gastric epithelia and the gastric adenocarcinoma cells]. ZHONGGUO YING YONG SHENG LI XUE ZA ZHI = ZHONGGUO YINGYONG SHENGLIXUE ZAZHI = CHINESE JOURNAL OF APPLIED PHYSIOLOGY 2005; 21:457-460. [PMID: 21180174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
AIM To study the influence of acetylcholine (ACh) on nicotinic receptor(N receptor) beta-subunit of the gastric epithelia and the gastric adenocarcinoma cells, and the difference of both cells. METHODS Immunohistochemistry method was used to examine the number, number density and surface density of N receptor beta-subunit in both cells cultured in vitro. RESULTS The number and number density of N receptor beta-subunit in the gastric adenocarcinoma cells were much more than that in the gastric epithelia (P < 0.05). But surface density of N receptor beta-subunit in the gastric adenocarcinoma cells were lower than that in the gastric epithelia (P < 0.05). ACh at 10(6) mol/L could increase the number, number density and surface density of N receptor beta-subunit in the gastric epithelia (P < 0.01). The increase effect could not be blocked by atropine. ACh had no effect on N receptor beta-subunit in the gastric adenocarcinoma cells. CONCLUSION ACh at low concentration initiates N receptor desensitization in the gastric epithelia. ACh has no effect on sensitivity of N receptor beta-subunit in the gastric adenocarcinoma cells.
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Ruan WJ, Zhao XJ, Wang SJ, Zhang YH, Zhang ZH, Nan J, Zhu ZA, Wang JG, Ma Y. Study on the Molecular Recognition ofα,α,α,β-ZnT(o-BocThr)APP toward Imidazole Derivatives and Amino Acid Esters. CHINESE J CHEM 2005. [DOI: 10.1002/cjoc.200591381] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Wang JG, Mahmud SA, Thompson JA, Geng JG, Key NS, Slungaard A. The principal eosinophil peroxidase product, HOSCN, is a uniquely potent phagocyte oxidant inducer of endothelial cell tissue factor activity: a potential mechanism for thrombosis in eosinophilic inflammatory states. Blood 2005; 107:558-65. [PMID: 16166591 PMCID: PMC1895611 DOI: 10.1182/blood-2005-05-2152] [Citation(s) in RCA: 109] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
In vivo, bromide (Br(-)), nitrite (NO(2)(-)), and thiocyanate (SCN(-)) compete for oxidation by eosinophil peroxidase (EPO) and H(2)O(2), yielding, respectively, HOBr, NO(2)., and HOSCN. We have recently shown that SCN(-) is the strongly preferred substrate for EPO in vivo and that HOSCN, in contrast with other EPO-generated oxidants and HOCl, is a relatively weak, cell-permeant, sulfhydryl (SH)-reactive oxidant. We here show that HOSCN is a uniquely potent (up to 100-fold) phagocyte oxidant inducer of tissue factor (TF) activity in human umbilical vein endothelial cells (HUVECs). This induction is attributable to transcriptional up-regulation of TF gene expression dependent upon both activation of the p65/c-Rel TF-kappaB transcription factor and activity of the ERK1/2 kinase pathway upstream of Egr-1 and was markedly further enhanced in the presence of wortmannin, an inhibitor of the PI3 kinase/Akt pathway. HOSCN also markedly activates the proinflammatory p65/p50 NF-kappaB pathway. Based on these findings we hypothesize that HOSCN generated by adherent and infiltrating eosinophils may provoke the development of a prothrombotic and proinflammatory endothelial/endocardial phenotype that promotes the pronounced thrombotic diathesis characteristic of the hypereosinophilic syndrome.
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Vang RT, Wang JG, Knudsen J, Schnadt J, Laegsgaard E, Stensgaard I, Besenbacher F. The Adsorption Structure of NO on Pd(111) at High Pressures Studied by STM and DFT. J Phys Chem B 2005; 109:14262-5. [PMID: 16852791 DOI: 10.1021/jp052519t] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Using a combination of scanning tunneling microscopy (STM) and density functional theory (DFT) calculations, we study the adsorption structure of NO on Pd(111) at pressures of up to 720 Torr. From atomically resolved STM images, we identify, at high pressures, only the (2 x 2)-3NO structure, which is identical with the highest NO-coverage structure found at low pressure and low temperature. DFT calculations confirm that the (2 x 2)-3NO structure is indeed the most stable adsorption structure at high pressures. Contrary to recent suggestions in the literature, we therefore conclude that we find no evidence for a (3 x 3)-7NO structure on Pd(111) at high NO pressure.
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Xing HC, Li LJ, Xu KJ, Shen T, Chen YB, Chen Y, Fu SZ, Sheng JF, Chen CL, Wang JG, Yan D, Dai FW, Sha XY. Effects of Salvia miltiorrhiza on intestinal microflora in rats with ischemia/reperfusion liver injury. Hepatobiliary Pancreat Dis Int 2005; 4:274-80. [PMID: 15908329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Hepatic ischemia/reperfusion injury may induce intestinal microflora imbalance. Salvia miltiorrhiza is effective in promoting blood circulation and counteracting peroxidation in tissues. The aim of the present study was to determine the effects of Salvia miltiorrhiza on intestinal microflora, endotoxemia, and bacterial translocation in rats with hepatic I/R injury. METHODS Sprague-Dawley rats in specific pathogen free grade were divided into 3 groups: group I(n=6) for sham operation; groups II(n=10) and III(n=7) for liver ischemia for 20 minutes and reperfusion for 22 hours. Group III was also pretreated with 4 ml/day of Salvia miltiorrhiza solution (250 mg/kg) by daily gavage for 7 days. The levels of serum alanine aminotransferase (ALT), aspartate aminotransferase (AST), malondialdehyde (MDA) and superoxide dismutase(SOD) in liver tissues, serum endotoxin, intestinal bacterial counts, intestinal mucosal histology and bacterial translocation were studied. RESULTS The levels of ALT, AST, plasma endotoxin and MDA in liver tissues were decreased more markedly in group III (57.57+/-18.08 U/L, 147.57+/-40.84 U/L, 0.42+/-0.144 EU/ml and 0.52+/-0.19 nmol/mg-prot respectively) in group II(122.8+/-80.12 U/L, 295.9+/-216.92 U/L, 0.80+/-0.262 EU/ml and 0.72+/-0.12 nmol/mg-prot; P<0.05-0.01 respectively). Liver SOD activity was increased more significantly in group III (318.47+/-64.62 U/mg-prot) than in group II(240.76+/-63.67 U/mg-prot, P<0.05). The counts of Bifidobacteria and Bacteroides increased more significantly in group III than in group II, but were similar to those in group I. Bacterial translocation to the kidney in group II was 50%(5/10), whereas no bacterial translocation to the kidney occurred in the other two groups (P<0.01). Ileal mucosal structure was markedly ameliorated in group III as compared with group II. CONCLUSIONS Salviae miltiorrhiza could partially restore intestinal microflora balance, improve intestinal mucosal integrity, and reduce bacterial translocation and plasma endotoxin in rats with hepatic ischemia/reperfusion injury.
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