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Chen H, Tang T, Amirfazli A. Fabrication of polymeric surfaces with similar contact angles but dissimilar contact angle hysteresis. Colloids Surf A Physicochem Eng Asp 2012. [DOI: 10.1016/j.colsurfa.2012.04.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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77
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Zhang QQ, Wu XJ, Tang T, Zhu SW, Yao Q, Gao BZ, Yuan XC. Quantitative analysis of rectal cancer by spectral domain optical coherence tomography. Phys Med Biol 2012; 57:5235-44. [PMID: 22850124 DOI: 10.1088/0031-9155/57/16/5235] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
To quantify OCT images of rectal tissue for clinic diagnosis, the scattering coefficient of the tissue is extracted by curve fitting the OCT signals to a confocal single model. A total of 1000 measurements (half and half of normal and malignant tissues) were obtained from 16 recta. The normal rectal tissue has a larger scattering coefficient ranging from 1.09 to 5.41 mm⁻¹ with a mean value of 2.29 mm⁻¹ (std:±0.32), while the malignant group shows lower scattering property and the values ranging from 0.25 to 2.69 mm⁻¹ with a mean value of 1.41 mm⁻¹ (std:±0.18). The peri-cancer of recta has also been investigated to distinguish the difference between normal and malignant rectal tissue. The results demonstrate that the quantitative analysis of the rectal tissue can be used as a promising diagnostic criterion of early rectal cancer, which has great value for clinical medical applications.
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Morley L, Tang T, Yasmin E, Hamzeh R, Rutherford AJ, Balen AH. Timing of human chorionic gonadotrophin (hCG) hormone administration in IVF protocols using GnRH antagonists: a randomized controlled trial. HUM FERTIL 2012; 15:134-9. [DOI: 10.3109/14647273.2012.712739] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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79
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Abstract
Congestive heart failure is an inexorable disease associated with unacceptably high morbidity and mortality. Preclinical results indicate that gene transfer using various proteins is a safe and effective approach for increasing function of the failing heart. In the current review, we provide a summary of cardiac gene transfer in general and summarize findings using adenylyl cyclase 6 as therapeutic gene in the failing heart. We also discuss the potential usefulness of a new treatment for congestive heart failure, paracrine-based gene transfer.
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Brennan KC, Tang T, Lopez-Valdes H, Charles A, Ju YS. Minimum Conditions for the Induction of Cortical Spreading Depression: Implications for Migraine with Aura (S16.002). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.s16.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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81
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Chang JC, Tang T, Leung J, Hartwig M, Parker W, Davis R, Lin S. 18 Prolonged Ischemic Time Exacerbates the Development of Chronic Gastric Fluid Aspiration-Associated Bronchiolitis Obliterans in Rat Pulmonary Allografts. J Heart Lung Transplant 2012. [DOI: 10.1016/j.healun.2012.01.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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82
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Tang T, Cheng A, Wang M, Li X, He Q, Jia R, Zhu D, Chen X. Development and clinical verification of a loop-mediated isothermal amplification method for detection of Salmonella species in suspect infected ducks. Poult Sci 2012; 91:979-86. [DOI: 10.3382/ps.2011-01992] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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83
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He YX, Liu Z, Pan XH, Tang T, Guo BS, Zheng LZ, Xie XH, Wang XL, Lee KM, Li G, Cao YP, Wei L, Chen Y, Yang ZJ, Hung LK, Qin L, Zhang G. Deletion of estrogen receptor beta accelerates early stage of bone healing in a mouse osteotomy model. Osteoporos Int 2012; 23:377-89. [PMID: 22037970 DOI: 10.1007/s00198-011-1812-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2011] [Accepted: 09/19/2011] [Indexed: 10/15/2022]
Abstract
UNLABELLED This study examined the role of estrogen receptor (ER) beta during mouse femoral fracture healing by employing ER knockout (KO) mice. The fracture healing in KO mice was enhanced in the early stage of neovascularization and the middle stage of endochondral ossification. INTRODUCTION This study was conducted to examine the role of ER beta during fracture healing. METHODS Female ERbeta knockout (KO) mice (18 weeks old) and age-matched female wild-type (WT) mice underwent open osteotomy on the right femur. They were sacrificed at 1, 2, 4 and 6 weeks post-fracture. The sera and callus samples were subjected to the following analyses: micro-computed tomography (CT)-based angiography, micro-CT evaluation, histological examination, histomorphometry examination, real-time polymerase chain reaction (PCR) analysis, biochemical marker, and mechanical testing. RESULTS Micro-CT-based angiography showed that the total vessel volume at the fracture site was larger in the KO group than the WT group at 1 and 2 weeks post-fracture. Micro-CT analysis revealed that the callus volume was significantly higher in the KO group from week 2 to week 4 post-fracture when compared with the WT group consistent with the histological data. Analysis of biochemical markers indicated that circulating P1NP levels in the KO mice were significantly higher than in the WT mice from week 2 to week 4 and that temporal expression of circulating C-terminal telopeptide of type I collagen (CTX) levels was also higher in the KO mice than in the WT mice. These results were consistent with quantitative real-time PCR analysis. The ultimate load, stiffness, and energy to failure were significantly higher in the KO mice than in the WT mice at week 4. CONCLUSIONS The fracture healing in KO mice was enhanced in the early stage of neovascularization and the middle stage of endochondral ossification, but not by the end of healing. Blockade of ERbeta can be considered as another therapeutic strategy for osteoporotic fracture and non-union fracture.
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Tang T, Zhang Z, Ding Z, Yoshikawa H. Deriving Effective Energy Loss Function for Silver from XPS Spectrum. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.phpro.2012.03.536] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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85
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Meng B, Zhang Q, Huang C, Zhang HT, Tang T, Yang HL. Effects of a single dose of methylprednisolone versus three doses of rosiglitazone on nerve growth factor levels after spinal cord injury. J Int Med Res 2011; 39:805-14. [PMID: 21819712 DOI: 10.1177/147323001103900313] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Acute spinal cord lesions result in dramatic changes in neuronal function. Studies have shown that the peroxisome proliferator-activated receptor-γ agonist, rosiglitazone, has neuroprotective properties. The effect of rosiglitazone after acute spinal cord injury was examined in the present study. Rats were subjected to laminectomy only; laminectomy with spinal cord contusion injury; laminectomy with contusion injury plus 30 mg/kg body weight methylprednisolone administered 5 min after surgery; or laminectomy with contusion injury plus 2 mg/kg body weight rosiglitazone administered intraperitoneally 5 min, 6 h and 24 h after surgery. Both drugs increased neurotrophin gene and protein expression 24 h after injury compared with injured rats without drug treatment. Rosiglitazone increased neurotrophin expression at 7 days to a greater extent than methylprednisolone. Early functional recovery was observed in rats treated with rosiglitazone. The greater increase in rosiglitazone-induced nerve growth factor expression soon after injury could explain, at least in part, the improved recovery of motor function compared with methylprednisolone or saline.
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Dong X, Liu F, Zhang D, Tang T, Ge X. Identification and characterization of the cysteine protease inhibitor gene MdCPI from Musca domestica. INSECT MOLECULAR BIOLOGY 2011; 20:577-586. [PMID: 21711401 DOI: 10.1111/j.1365-2583.2011.01088.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Cysteine proteinase inhibitors (CPIs) are involved in many vital cellular processes such as signalling pathways, apoptosis, immune response and development; however, no CPIs have yet been reported from the housefly Musca domestica. Here we report the isolation and characterization of a housefly CPI gene designated MdCPI. The gene contains an open reading frame of 357 bp encoding a protein of 118 amino acid residues with a putative signal peptide of 17 amino acid residues. Protein alignment demonstrated a high homology to that of Sarcophaga crassipalpis (identity = 51%). Phylogenetic analysis suggested that all CPIs from dipterans, including the housefly, belong to the I25A family and may be descended from a single common ancestor. The gene was expressed in and purified from Escherichia coli. Biochemical studies showed that MdCPI exerts an inhibiting function on papain, which is a classical assay to confirm CPIs. Real-time quantitative PCR and immunolocalization analysis revealed that MdCPI is specifically expressed in haemocytes and fat bodies. It is highly down-regulated in larvae and markedly up-regulated in the pupal stage, suggesting that it may be related to development.
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Welkos S, Cote CK, Hahn U, Shastak O, Jedermann J, Bozue J, Jung G, Ruchala P, Pratikhya P, Tang T, Lehrer RI, Beyer W. Humanized theta-defensins (retrocyclins) enhance macrophage performance and protect mice from experimental anthrax infections. Antimicrob Agents Chemother 2011; 55:4238-50. [PMID: 21768520 PMCID: PMC3165295 DOI: 10.1128/aac.00267-11] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2011] [Revised: 06/17/2011] [Accepted: 07/03/2011] [Indexed: 12/16/2022] Open
Abstract
Retrocyclins are humanized versions of the -defensin peptides expressed by the leukocytes of several nonhuman primates. Previous studies, performed in serum-free media, determined that retrocyclins 1 (RC1) and RC2 could prevent successful germination of Bacillus anthracis spores, kill vegetative B. anthracis cells, and inactivate anthrax lethal factor. We now report that retrocyclins are extensively bound by components of native mouse, human, and fetal calf sera, that heat-inactivated sera show greatly enhanced retrocyclin binding, and that native and (especially) heat-inactivated sera greatly reduce the direct activities of retrocyclins against spores and vegetative cells of B. anthracis. Nevertheless, we also found that retrocyclins protected mice challenged in vivo by subcutaneous, intraperitoneal, or intranasal instillation of B. anthracis spores. Retrocyclin 1 bound extensively to B. anthracis spores and enhanced their phagocytosis and killing by murine RAW264.7 cells. Based on the assumption that spore-bound RC1 enters phagosomes by "piggyback phagocytosis," model calculations showed that the intraphagosomal concentration of RC1 would greatly exceed its extracellular concentration. Murine alveolar macrophages took up fluorescently labeled retrocyclin, suggesting that macrophages may also acquire extracellular RC1 directly. Overall, these data demonstrate that retrocyclins are effective in vivo against experimental murine anthrax infections and suggest that enhanced macrophage function contributes to this property.
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Tang T, Sadleir RJ. Quantification of intraventricular hemorrhage with electrical impedance tomography using a spherical model. Physiol Meas 2011; 32:811-21. [PMID: 21646702 DOI: 10.1088/0967-3334/32/7/s06] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
We have developed a robust EEG-based current pattern which shows promise for the detection of intraventricular hemorrhage (IVH) in neonates. Our reconstructions to date are based on a layered spherical head model. In this study, the current pattern was used to gather data from three realistic-shaped neonatal head models and a physical phantom based on one of these models. We found that a sensitivity matrix calculated from a spherical model gave us satisfactory reconstructions in terms of both image quality and quantification. Incorporating correct geometry information into the forward model improved image quality. However, it did not improve quantification accuracy. The results indicate that using a spherical matrix may be a more practical choice for monitoring IVH volumes in neonates for whom patient-specific models are not available.
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Jiang G, Bi K, Tang T, Ren H, Wang Y, Wen P, Liu J, Bi G. 201 The role of c-Myc and MMPs in the malignant transformation of patients with myelodysplastic syndromes. Leuk Res 2011. [DOI: 10.1016/s0145-2126(11)70203-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Jiang G, Bi K, Tang T, Ren H, Wang Y, Wen P, Liu J, Bi G. 200 LOH and MSI of Mfd27 and 9P21 polymorphic microsatellite were related to the pathogenesis and transformation of MDS. Leuk Res 2011. [DOI: 10.1016/s0145-2126(11)70202-8] [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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91
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Jiang G, Bi K, Tang T, Ren H, Wang Y, Wen P, Liu J, Bi G. 199 Evi1 and MDS1-Evi1 expression were related to the transformation of MDS. Leuk Res 2011. [DOI: 10.1016/s0145-2126(11)70201-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Jiang G, Bi K, Tang T, Ren H, Wang Y, Wen P, Liu J, Bi G. 198 The role of cytokine, telomerase activity and apoptosis associated proteins in inefficient hematopoiesis of patients with myelodysplastic syndromes. Leuk Res 2011. [DOI: 10.1016/s0145-2126(11)70200-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Tang T, Zhang G, Lau CPY, Zheng LZ, Xie XH, Wang XL, Wang XH, He K, Patrick Y, Qin L, Kumta SM. Effect of water-soluble P-chitosan and S-chitosan on human primary osteoblasts and giant cell tumor of bone stromal cells. Biomed Mater 2011; 6:015004. [PMID: 21205994 DOI: 10.1088/1748-6041/6/1/015004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Water-soluble phosphorylated chitosan (P-chitosan) and disodium (1 → 4)-2-deoxy-2-sulfoamino-β-D-glucopyranuronan (S-chitosan) are two chemically modified chitosans. In this study, we found that P-chitosan significantly promotes cell proliferation of both human primary osteoblasts (OBs) and the OB like stromal cell component of the giant cell tumor of bone (GCTB) cells at the concentration from 125 to 1000 µg ml⁻¹ at all time points of 1, 3, 5 and 7 days after treatment. Further investigation of the osteogenic effect of the P-chitosan suggested that it regulates the levels of osteoclastogenic factors, receptor activator of nuclear factor kappa B ligand and osteoprotegerin expression. An interesting finding is that S-chitosan at lower concentration (100 µg ml⁻¹) stimulates cell proliferation while a higher dose (1000 µg ml⁻¹) of S-chitosan inhibits it. The inhibitory effect of S-chitosan on human primary GCT stromal cells was greater than that of OBs (p < 0.05). Taken together, our findings elucidated the osteogenic effect of P-chitosan and the varying effects of S-chitosan on the proliferation of human primary OBs and GCT stromal cells and provided us the rationale for the construction of novel bone repair biomaterials with the dual properties of bone induction and bone tumor inhibition.
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Kowalewski R, Seal D, Tang T, Prusinkiewicz C, Ha D. Neuraxial anesthesia for cardiac surgery: thoracic epidural and high spinal anesthesia - why is it different? HSR PROCEEDINGS IN INTENSIVE CARE & CARDIOVASCULAR ANESTHESIA 2011; 3:25-8. [PMID: 23440039 PMCID: PMC3484610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Anesthesiologists can offer much more then stable blood pressure and heart rate in the intraoperative period. By choosing appropriate anesthetic techniques they can tremendously influence perioperative stress. This may positively impact on the overall surgical outcome. One of the most intriguing aspects of neuraxial anesthesia is its ability to attenuate the stress response to surgery. At present there is no agreement on the clinical importance of such a response but there is substantial indirect evidence that it may play an important role in a patient's outcome. Neuraxial anesthesia supplemented by general anesthesia is justified and can be safely used in cardiac surgery. The authors of this expert opinion prefer spinal anesthesia to thoracic epidural anesthesia and have been using it routinely for the last 20 years without any neurological complications. The risk of spinal hematoma from a 27G spinal needle prior to full heparinization is unknown but in our opinion is remote. Both epidural and spinal techniques can and should have a place in modern cardiac anesthesia practice and should be further investigated.
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Tang T, Targan SR, Li ZS, Xu C, Byers VS, Sandborn WJ. Randomised clinical trial: herbal extract HMPL-004 in active ulcerative colitis - a double-blind comparison with sustained release mesalazine. Aliment Pharmacol Ther 2011; 33:194-202. [PMID: 21114791 DOI: 10.1111/j.1365-2036.2010.04515.x] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND Andrographis paniculata is an herbal mixture used to treat inflammatory diseases. An extract of the herb, HMPL-004, inhibits TNF-α and IL-1β, and prevents colitis in animal models. AIM To determine the efficacy and safety of HMPL-004 in patients with mild-to-moderate ulcerative colitis. METHODS A randomised, double-blind, multicentre, 8-week parallel group study was conducted using HMPL-004 1200 mg/day compared with 4500 mg/day of slow release mesalazine (mesalamine) granules in patients with mild-to-moderately active ulcerative colitis. Disease activity was assessed at baseline and every 2 weeks for clinical response, and at baseline and 8 weeks by colonoscopy. RESULTS One hundred and twenty patients at five centres in China were randomised and dosed. Clinical remission and response were seen in 21% and 76% of HMPL-004-treated patients, and 16% and 82% of mesalazine-treated patients. By colonoscopy, remission and response were seen in 28% and 74% of HMPL-004-treated patients and 24% and 71% of mesalazine-treated patients, respectively. There was no significant difference between the two treatment groups. CONCLUSION HMPL-004 may be an efficacious alternative to mesalazine in ulcerative colitis.
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Gminski R, Tang T, Kuhn R, Könczöl M, Gründemann C, Mersch-Sundermann V. Toxicological investigation of laser printer emissions—Effects on human cells. Toxicol Lett 2010. [DOI: 10.1016/j.toxlet.2010.03.564] [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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97
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Tang T. Density functional theory study of electronic structures in lithium silicates: Li <sub>2</sub>SiO <sub>3</sub> and Li<sub>4</sub>SiO<sub>4</sub>. JOURNAL OF ATOMIC AND MOLECULAR SCIENCES 2010. [DOI: 10.4208/jams.110609.113009a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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98
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Tso LO, Costello MF, Andriolo RB, Albuquerque LE, Freitas V, Morin - Papunen L, Rantala A, Unkila-Kallio L, Tiitinen A, Hippelainen M, Tinkanen H, Perheentupa A, Ruokonen A, Tapanainen JS, Tang T, Barth JH, Balen AH, Lee K, Choi YS, Yang H, Seo SK, Kim HY, Lee BS, Germeyer A, Jauckus J, Zorn M, Toth B, Capp E, Strowitzki T. Session 45: PCOS1. Hum Reprod 2010. [DOI: 10.1093/humrep/de.25.s1.45] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Guo Z, Tang T, Lin X, Yang H. P121 THE PROTECTIVE ROLE OF SPECIFIC PROTEIN-1 AGAINST BENZO(A)PYRENE-INDUCED ATHEROGENESIS. ATHEROSCLEROSIS SUPP 2010. [DOI: 10.1016/s1567-5688(10)70188-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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100
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Zhang ZM, Chen T, Ding ZJ, Tang T, Csik A, Tóth J, Tökési K. Optical properties of silver thin films, derived from REELS. SURF INTERFACE ANAL 2010. [DOI: 10.1002/sia.3312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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