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WANG H, WU X, LI JY, CHAI BX, WANG J, MULHOLLAND MW, ZHANG W. Functional protease-activated receptors in the dorsal motor nucleus of the vagus. Neurogastroenterol Motil 2010; 22:431-8, e105. [PMID: 19719510 PMCID: PMC3052761 DOI: 10.1111/j.1365-2982.2009.01391.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
BACKGROUND Protease-activated receptors (PARs), a family member of G-protein coupled receptors, are present and functionally active in a wide variety of cells. The object of this study was to demonstrate the presence and function of PAR-1 and PAR-2 in the dorsal motor nucleus of the vagus (DMV). METHODS DMNV neurons were isolated from neonatal rat brainstems using micro-dissection and enzymatic digestion. Neurons were cultured in Neurobasal medium A containing 2% B27 supplement. Intracellular calcium concentration ([Ca(2+)](i)) was measured using fura-2 based microspectrometry. Expression of PARs was detected by RT-PCR and immunofluorescent staining. KEY RESULT: Thrombin and PAR-1 agonist peptide activate PAR-1 with a maximum change in [Ca(2+)](i) expressed as DeltaF/F0 of 229 +/- 14% and 137 +/- 7%, respectively. Trypsin and PAR-2 agonist peptide activate PAR-2 with a maximum DeltaF/F0 change of 258 +/- 12% and 242 +/- 10%, respectively. Inhibition of phospholipase C (PLC) by U73312 (1 microm) decreased the maximal change in DeltaF/F0 induced by PAR-1 activation from 140 +/- 17% to 21 +/- 3%, while the PAR-2-mediated maximal change in DeltaF/F0 decreased from 185 +/- 21% to 19 +/- 6%. Blockade of IP3 receptor with 2APB inhibited the maximal change in DeltaF/F0 due to PAR-1 and PAR-2 activation by 72 +/- 13% and 71 +/- 20% respectively. PAR-1 immnuoreactivity was present in DMV neurons. Increase in transcripts for PAR-1 and PAR-2 were detected in DMV tissues derived from IBD rats relative to control animals. CONCLUSIONS & INFERENCES Our results indicate that PAR-1 and PAR-2 are present in the DMV neurons, and their activation leads to increases in intracellular calcium via signal transduction mechanism that involves activation of PLC and the production of IP3.
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ABDOULLAYE DOUKARY, ACEVEDO I, ADEBAYO ABISOLAA, BEHRMANN‐GODEL JASMINCA, BENJAMIN RC, BOCK DANG, BORN CÉLINE, BROUAT CARINE, CACCONE ADALGISA, CAO LING, CASADO‐AMEZÚA P, CATANÉO J, CORREA‐RAMIREZ MM, CRISTESCU MELANIAE, DOBIGNY GAUTHIER, EGBOSIMBA EMMANUELE, ETCHBERGER LIANNAK, FAN BIN, FIELDS PETERD, FORCIOLI D, FURLA P, GARCIA de LEON FJ, GARCÍA‐JIMÉNEZ R, GAUTHIER PHILIPPE, GERGS RENÉ, GONZÁLEZ CLEMENTINA, GRANJON LAURENT, GUTIÉRREZ‐RODRÍGUEZ CARLA, HAVILL NATHANP, HELSEN P, HETHER TYLERD, HOFFMAN ERICA, HU XIANGYANG, INGVARSSON PÄRK, ISHIZAKI S, JI HEYI, JI XS, JIMENEZ ML, KAPIL R, KARBAN R, KELLER STEPHENR, KUBOTA S, LI SHUZHEN, LI WANSHA, LIM DOUGLASD, LIN HAORAN, LIU XIAOCHUN, LUO YAYAN, MACHORDOM A, MARTIN ANDREWP, MATTHYSEN E, MAZZELLA MAXWELLN, McGEOCH MÉLODIEA, MENG ZINING, NISHIZAWA M, O’BRIEN PATRICIA, OHARA M, ORNELAS JUANFRANCISCO, ORTU MF, PEDERSEN AMYB, PRESTON L, REN QIN, ROTHHAUPT KARL, SACKETT LORENC, SANG QING, SAWYER GM, SHIOJIRI K, TAYLOR DOUGLASR, Van DONGEN S, Van VUUREN BETTINEJANSEN, VANDEWOESTIJNE S, WANG H, WANG JT, WANG LE, XU XIANG, YANG GUANG, YANG YONGPING, ZENG YQ, ZHANG QING, ZHANG YONGPING, ZHAO Y, ZHOU YAN. Permanent Genetic Resources added to Molecular Ecology Resources Database 1 August 2009–30 September 2009. Mol Ecol Resour 2009; 10:232-6. [DOI: 10.1111/j.1755-0998.2009.02796.x] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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OGURA S, SHIMOSAWA T, MU S, MORI F, WANG H, UETAKE Y, SATO Y, FUJITA Y, KAKINO A, IWAMOTO S, YAMAGUCHI S, FUJITA T, SAWAMURA T. Lectin-Like Oxidized LDL Receptor-1 And Vascular Injury By Rac1 Acitvation Under Chronic Hypoxia. Int J Cardiol 2009. [DOI: 10.1016/j.ijcard.2009.09.514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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MU S, SHIMOSAWA T, OGURA S, WANG H, MORI F, UETAKE Y, FUJITA T. Both antioxidant and potassium treatment can reverse salt-sensitive hypertension though WNK4 pathway. Int J Cardiol 2009. [DOI: 10.1016/j.ijcard.2009.09.508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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THIDA M, EARL J, ZHAO Y, WANG H, TSE C, VICKERS J, SUTTON M, ONG S, MORI T, CROFT K, WHITWORTH J, ZHANG Y. The role of endothelial nitric oxide synthase uncoupling in glucocorticoid-induced hypertension. Int J Cardiol 2009. [DOI: 10.1016/j.ijcard.2009.09.157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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WANG HE, Dugan E, Frame J, Rolston L. Gait Analysis Of Patients With A Unilateral Bi-compartmental Knee Replacement. Med Sci Sports Exerc 2009. [DOI: 10.1249/01.mss.0000354201.37978.6b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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WANG H, ZHANG W, DONG X, YANG Y. Thermo-reversibility of the fluorescence enhancement of acridine orange induced by supramolecular self-assembly. Talanta 2009; 77:1864-8. [DOI: 10.1016/j.talanta.2008.10.040] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2008] [Revised: 10/19/2008] [Accepted: 10/21/2008] [Indexed: 11/28/2022]
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DENG Y, WANG H, ZHONG L, ZHANG H. Trace determination of short-chain aliphatic amines in biological samples by micellar electrokinetic capillary chromatography with laser-induced fluorescence detection. Talanta 2009; 77:1337-42. [DOI: 10.1016/j.talanta.2008.09.013] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2008] [Revised: 09/07/2008] [Accepted: 09/09/2008] [Indexed: 11/25/2022]
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WANG H, JI J, ZHANG W, ZHANG Y, JIANG J, WU Z, PU S, CHU P. Biocompatibility and bioactivity of plasma-treated biodegradable poly(butylene succinate). Acta Biomater 2009; 5:279-87. [PMID: 18760682 DOI: 10.1016/j.actbio.2008.07.017] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2008] [Revised: 06/30/2008] [Accepted: 07/17/2008] [Indexed: 10/21/2022]
Abstract
Poly(butylene succinate) (PBSu), a novel biodegradable aliphatic polyester with excellent processability and mechanical properties, is a promising substance for bone and cartilage repair. However, it typically suffers from insufficient biocompatibility and bioactivity after implantation into the human body. In this work, H(2)O or NH(3) plasma immersion ion implantation (PIII) is conducted for the first time to modify the PBSu surface. Both the treated and control specimens are characterized by X-ray photoelectron spectroscopy, contact angle measurements and atomic force microscopy. The plasma treatments improve the hydrophilicity and roughness of PBSu significantly and the different PIII processes result in similar hydrophilicity and topography. C-OH and C-NH(2) functional groups emerge on the PBSu surface after H(2)O and NH(3) PIII, respectively. The biological results demonstrate that both osteoblast compatibility and apatite formability are enhanced after H(2)O and NH(3) PIII. Furthermore, our results suggest that H(2)O PIII is more effective in rendering PBSu suitable for bone-replacement implants compared to NH(3) PIII.
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CHEN H, WANG X, SU X, YANG F, LU Y, XU G, DAI J, DING Q, XI X, WANG H. Identification of a novel splicing mutation in the fibrinogen Aα chain gene leading to hypofibrinogenaemia in a Chinese pedigree. Haemophilia 2009; 15:394-7. [DOI: 10.1111/j.1365-2516.2008.01835.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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WANG H, YANG D, XU W, WANG Y, RUAN Z, ZHAO T, HAN J, WU Y. Tumor-derived soluble MICs impair CD3+CD56+ NKT-like cell cytotoxicity in cancer patients. Immunol Lett 2008; 120:65-71. [DOI: 10.1016/j.imlet.2008.07.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2008] [Revised: 06/26/2008] [Accepted: 07/01/2008] [Indexed: 11/28/2022]
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WANG H, YIN Y, GAO S. Effects of Lanthanide Ions on Electrooxidation of Methanol. Chem Res Chin Univ 2008. [DOI: 10.1016/s1005-9040(08)60132-4] [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]
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WANG H, PRINS R. Hydrodesulfurization of dibenzothiophene and its hydrogenated intermediates over sulfided Mo/γ-Al2O3. J Catal 2008. [DOI: 10.1016/j.jcat.2008.06.005] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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LI Y, BAO G, WANG H. Determination of 11 fatty acids and fatty acid methyl esters in biodiesel using ultra performance liquid chromatography. Se Pu 2008; 26:494-8. [DOI: 10.1016/s1872-2059(08)60025-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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LIU P, WANG H, FENG Z, YING P, LI C. Direct immobilization of self-assembled polyoxometalate catalyst in layered double hydroxide for heterogeneous epoxidation of olefins. J Catal 2008. [DOI: 10.1016/j.jcat.2008.03.022] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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WANG H, ZHANG Y, MU Y. Rate Constants for Reactions of •OH with Several Reduced Sulfur Compounds Determined by Relative Rate Constant Method. ACTA PHYS-CHIM SIN 2008. [DOI: 10.1016/s1872-1508(08)60041-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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WANG HE, Toner M, Lemonda T, Zohar M. Influence of Cold-water Immersion on Biomechanics of Drop-landing. Med Sci Sports Exerc 2008. [DOI: 10.1249/01.mss.0000322385.57749.b3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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WANG H, LAI X, XIA W, YU R, MAO D, XING C, YAO J, WANG D, LI X. Preparation and Electrode Performance of Ferrihydrites For Rechargeable Lithium Batteries. Chem Res Chin Univ 2008. [DOI: 10.1016/s1005-9040(08)60080-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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ZHANG J, WANG H, PENG D, TAYLOR E. Further insight into the impact of sodium selenite on selenoenzymes: High-dose selenite enhances hepatic thioredoxin reductase 1 activity as a consequence of liver injury. Toxicol Lett 2008; 176:223-9. [DOI: 10.1016/j.toxlet.2007.12.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2007] [Revised: 11/29/2007] [Accepted: 12/04/2007] [Indexed: 11/28/2022]
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WANG S, HU P, WANG H, WANG M, CHEN J, TANG J, RUAN D. Effects of Cd2+ on AMPA receptor-mediated synaptic transmission in rat hippocampal CA1 area. Toxicol Lett 2008; 176:215-22. [DOI: 10.1016/j.toxlet.2007.11.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2007] [Revised: 11/21/2007] [Accepted: 11/23/2007] [Indexed: 10/22/2022]
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WANG H, YE J, LIU Y, LI Y, QIN Y. Steam reforming of ethanol over Co3O4/CeO2 catalysts prepared by different methods. Catal Today 2007. [DOI: 10.1016/j.cattod.2006.10.012] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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WANG H, LIANG C, PRINS R. Hydrodenitrogenation of 2-methylpyridine and its intermediates 2-methylpiperidine and tetrahydro-methylpyridine over sulfided NiMo/γ-Al2O3. J Catal 2007. [DOI: 10.1016/j.jcat.2007.08.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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WANG H, SUO Y, WANG X, LI Y, YOU J, ZHAO X. Extraction of Nitraria tangutorum seed oil by supercritical carbon dioxide and determination of free fatty acids by HPLC/APCI/MS with fluorescence detection. Sep Purif Technol 2007. [DOI: 10.1016/j.seppur.2007.02.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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HUANG K, XIE W, WANG H, ZHANG H. Sensitive determination of S-nitrosothiols in human blood by spectrofluorimetry using a fluorescent probe: 1,3,5,7-tetramethyl-8-(3′,4′-diaminophenyl)-difluoroboradiaza-s-indacene. Talanta 2007; 73:62-7. [DOI: 10.1016/j.talanta.2007.02.031] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2007] [Revised: 02/25/2007] [Accepted: 02/25/2007] [Indexed: 11/15/2022]
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