26
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Chen C, Chai H, Wang X, Lin PH, Yao Q. Corrigendum to: Chlamydia heat shock protein 60 decreases expression of endothelial nitric oxide synthase in human and porcine coronary artery endothelial cells. Cardiovasc Res 2009. [DOI: 10.1093/cvr/cvp316] [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: 11/14/2022] Open
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Vilariño-Güell C, Chai H, Keeling BH, Young JE, Rajput A, Lynch T, Aasly JO, Uitti RJ, Wszolek ZK, Farrer MJ, Lin SC. MEIS1 p.R272H in familial restless legs syndrome. Neurology 2009; 73:243-5. [PMID: 19620614 DOI: 10.1212/wnl.0b013e3181ae7c79] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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28
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Lee J.W, Kwon JY, Chai H, Lucas P, Thompson V, Lawn B. Fracture Modes in Human Teeth. J Dent Res 2009; 88:224-8. [DOI: 10.1177/0022034508330055] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The structural integrity of teeth under stress is vital to functional longevity. We tested the hypothesis that this integrity is limited by fracture of the enamel. Experiments were conducted on molar teeth, with a metal rod loaded onto individual cusps. Fracture during testing was tracked with a video camera. Two longitudinal modes of cracking were observed: median cracking from the contact zone, and margin cracking along side walls. Median cracks initiated from plastic damage at the contact site, at first growing slowly and then accelerating to the tooth margin. Margin cracks appeared to originate from the cemento-enamel junction, and traversed the tooth wall adjacent to the loaded cusp from the gingival to the occlusal surface. All cracks remained confined within the enamel shell up to about 550 N. At higher loads, additional crack modes—such as enamel chipping and delamination—began to manifest themselves, leading to more comprehensive failure of the tooth structure.
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Chai H, Aghaie K, Zhou W. 119. Soluble CD40 Ligand Induces Human Coronary Artery Smooth Muscle Cells Proliferation and Migration. J Surg Res 2009. [DOI: 10.1016/j.jss.2008.11.147] [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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Bechara C, Chai H, Lin P, Lumsden A, Yao Q, Chen C. P289. J Surg Res 2007. [DOI: 10.1016/j.jss.2006.12.476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Jahanyar J, Youker K, Loebe M, Chai H, Assad-Kottner C, Torre-Amione G, Noon G. 384: Stem cell factor mRNA expression during mechanical circulatory support with left ventricular assist devices correlates with cardiac mast cell populations in the failing human heart. J Heart Lung Transplant 2007. [DOI: 10.1016/j.healun.2006.11.405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Wang X, Yan S, Chai H, Lin P, Lumsden A, Yao Q, Chen C. 137. J Surg Res 2007. [DOI: 10.1016/j.jss.2006.12.150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Chai H, Henao E, Wang X, Lin P, Lumsden A, Yao Q, Chen C. P145. J Surg Res 2007. [DOI: 10.1016/j.jss.2006.12.376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Ochoa L, Chai H, Hedayati N, Lin P, Lumsden A, Yao Q, Chen C. P128. J Surg Res 2007. [DOI: 10.1016/j.jss.2006.12.359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Wang X, Chai H, Li M, Lin P, Lumsden A, Yao Q, Chen C. P140. J Surg Res 2007. [DOI: 10.1016/j.jss.2006.12.371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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36
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Teng CC, Chai H, Lai DM, Wang SF. Cervicocephalic kinesthetic sensibility in young and middle-aged adults with or without a history of mild neck pain. ACTA ACUST UNITED AC 2006; 12:22-8. [PMID: 16777468 DOI: 10.1016/j.math.2006.02.003] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2004] [Revised: 01/16/2006] [Accepted: 02/03/2006] [Indexed: 01/08/2023]
Abstract
Previous research has shown that there is no significant relationship between the degree of structural degeneration of the cervical spine and neck pain. We therefore sought to investigate the potential role of sensory dysfunction in chronic neck pain. Cervicocephalic kinesthetic sensibility, expressed by how accurately an individual can reposition the head, was studied in three groups of individuals, a control group of 20 asymptomatic young adults and two groups of middle-aged adults (20 subjects in each group) with or without a history of mild neck pain. An ultrasound-based three-dimensional coordinate measuring system was used to measure the position of the head and to test the accuracy of repositioning. Constant error (indicating that the subject overshot or undershot the intended position) and root mean square errors (representing total errors of accuracy and variability) were measured during repositioning of the head to the neutral head position (Head-to-NHP) and repositioning of the head to the target (Head-to-Target) in three cardinal planes (sagittal, transverse, and frontal). Analysis of covariance (ANCOVA) was used to test the group effect, with age used as a covariate. The constant errors during repositioning from a flexed position and from an extended position to the NHP were significantly greater in the middle-aged subjects than in the control group (beta=0.30 and beta=0.60, respectively; P<0.05 for both). In addition, the root mean square errors during repositioning from a flexed or extended position to the NHP were greater in the middle-aged subjects than in the control group (beta=0.27 and beta=0.49, respectively; P<0.05 for both). The root mean square errors also increased during Head-to-Target in left rotation (beta=0.24;P<0.05), but there was no difference in the constant errors or root mean square errors during Head-to-NHP repositioning from other target positions (P>0.05). The results indicate that, after controlling for age as a covariate, there was no group effect. Thus, age appears to have a profound effect on an individual's ability to accurately reposition the head toward the neutral position in the sagittal plane and repositioning the head toward left rotation. A history of mild chronic neck pain alone had no significant effect on cervicocephalic kinesthetic sensibility.
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Zhou W, Chai H, Lin P, Lumsden A, Yao Q, Chen C. Ginkgolide a attenuates homocysteine induced endothelial dysfunction in porcine coronary arteries. J Surg Res 2006. [DOI: 10.1016/j.jss.2005.11.450] [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]
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38
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Wang H, Li M, Yan S, Chai H, Yao Q, Chen C. Shear stress regulates expression of TGF beta and its signal transduction molecules in mouse embryo mesenchymal progenitor cells. J Surg Res 2006. [DOI: 10.1016/j.jss.2005.11.443] [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]
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39
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Wang X, Yan S, Chai H, Wang H, Yao Q, Chen C. C-reactive protein inhibits cholesterol efflux from human macrophage-derived foam cells. J Surg Res 2006. [DOI: 10.1016/j.jss.2005.11.120] [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]
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Henao E, Chai H, Lin P, Lumsden A, Yao Q, Chen C. Serum amyloid a impairs endothelium-dependent vasorelaxation and increased superoxide anion production in porcine coronary arteries. J Surg Res 2006. [DOI: 10.1016/j.jss.2005.11.208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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41
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Chai H, Yan S, Wang H, Yang H, Zhang R, Li M, Wang X, Yao Q, Chen C. Soluble CD40 ligand induces endothelial dysfunction in human coronary artery endothelial cells and porcine coronary arteries. J Surg Res 2006. [DOI: 10.1016/j.jss.2005.11.125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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42
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Chen CL, Wang SF, Wang CL, Shau YW, Chai H. The effect of taping on the shock attenuation capacity of the heel pad in patients with plantar heel pain. J Biomech 2006. [DOI: 10.1016/s0021-9290(06)85248-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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43
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Li M, Yang H, Chai H, Fisher W, Wang X, Brunicardi C, Yao Q, Chen C. Expression and role of VEGF and neuropilins in pancreatic cancer. J Surg Res 2004. [DOI: 10.1016/j.jss.2004.07.134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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44
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Yan S, Wang H, Nan B, Chai H, Yao Q, Chen C, Chen C. HIV protease inhibitor ritonavir increases monolayer permeability of endothelial cells. J Surg Res 2004. [DOI: 10.1016/j.jss.2004.07.176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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45
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Wang H, Yan S, Li M, Chai H, Yang H, Yao Q, Chen C, Chen C. Shear stress induces endothelial differentiation from mouse embryo mesenchymal progenitor cells. J Surg Res 2004. [DOI: 10.1016/j.jss.2004.07.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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46
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Cevallos M, Yan S, Li M, Chai H, Yang H, Yao Q, Chen C. Cyclic strain induces expression of specific smooth muscle cell markers in human endothelial cells. J Surg Res 2004. [DOI: 10.1016/j.jss.2004.07.178] [Citation(s) in RCA: 1] [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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47
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Li M, Chai H, Wang H, Yao Q, Chen C, Fisher W. Somatostatin receptors are lost early in the process of pancreatic carcinogenesis. J Surg Res 2004. [DOI: 10.1016/j.jss.2004.07.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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48
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Safaya R, Chai H, Lin P, Lumsden A, Yao Q, Chen C. Effect of lysophosphatidylcholine on vasomotor functions of porcine arteries. J Surg Res 2004. [DOI: 10.1016/j.jss.2004.07.119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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49
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Zhou W, Chai H, Lin P, Lumsden A, Chen C, Chen C. Ginsenoside Rb1 blocks Homocysteine-induced endothelial dysfunction. J Surg Res 2004. [DOI: 10.1016/j.jss.2004.07.074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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50
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Nan B, Yan S, Chai H, Lin P, Yao Q, Chen C. TNF-α decreases expression of Thrombomudulin and endothelial protein C receptor in human endothelial cells. J Surg Res 2004. [DOI: 10.1016/j.jss.2004.07.077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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