201
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A selective and sensitive detection of SNP between rice cultivars by using DNA photoligation. ACTA ACUST UNITED AC 2009:199-200. [DOI: 10.1093/nass/nrp100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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202
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901 SACROILIAC JOINT AS AN ORIGIN OF NUMBNESS IN THE LOWER EXTREMITIES AND PAIN IN THE BUTTOCKS. Eur J Pain 2009. [DOI: 10.1016/s1090-3801(09)60904-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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203
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K/pi Fluctuations at relativistic energies. PHYSICAL REVIEW LETTERS 2009; 103:092301. [PMID: 19792791 DOI: 10.1103/physrevlett.103.092301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2009] [Indexed: 05/28/2023]
Abstract
We report K/pi fluctuations from Au + Au collisions at sqrt[s(NN)]= 19.6, 62.4, 130, and 200 GeV using the STAR detector at the Relativistic Heavy Ion Collider. K/pi fluctuations in central collisions show little dependence on incident energy and are on the same order as those from NA49 at the Super Proton Synchrotron in central Pb + Pb collisions at sqrt[s(NN)]=12.3 and 17.3 GeV. We report results for the collision centrality dependence of K/pi fluctuations and results for charge-separated fluctuations. We observe that the K/pi fluctuations scale with the charged particle multiplicity density.
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Measurement of bottom versus charm as a function of transverse momentum with electron-hadron correlations in p + p collisions at square root of s = 200 GeV. PHYSICAL REVIEW LETTERS 2009; 103:082002. [PMID: 19792719 DOI: 10.1103/physrevlett.103.082002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2009] [Indexed: 05/28/2023]
Abstract
The momentum distribution of electrons from semileptonic decays of charm and bottom quarks for midrapidity |y|<0.35 in p+p collisions at square root of s=200 GeV is measured by the PHENIX experiment at the Relativistic Heavy Ion Collider over the transverse momentum range 2<pT<7 GeV/c. The ratio of the yield of electrons from bottom to that from charm is presented. The ratio is determined using partial D/D-->e(+/-)K(-/+)X (K unidentified) reconstruction. It is found that the yield of electrons from bottom becomes significant above 4 GeV/c in pT. A fixed-order-plus-next-to-leading-log perturbative quantum chromodynamics calculation agrees with the data within the theoretical and experimental uncertainties. The extracted total bottom production cross section at this energy is sigma(bb)=3.2(-1.1)(+1.2)(stat)(-1.3)(+1.4)(syst)mub.
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205
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Gluon-spin contribution to the proton spin from the double-helicity asymmetry in inclusive pi0 production in polarized p+p collisions at [sqrt]s=200 GeV. PHYSICAL REVIEW LETTERS 2009; 103:012003. [PMID: 19659137 DOI: 10.1103/physrevlett.103.012003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2008] [Indexed: 05/28/2023]
Abstract
The double helicity asymmetry in neutral pion production for pT=1 to 12 GeV/c was measured with the PHENIX experiment to access the gluon-spin contribution, DeltaG, to the proton spin. Measured asymmetries are consistent with zero, and at a theory scale of micro2=4 GeV2 a next to leading order QCD analysis gives DeltaG[0.02,0.3]=0.2, with a constraint of -0.7<DeltaG[0.02,0.3]<0.5 at Deltachi2=9 (approximately 3sigma) for the sampled gluon momentum fraction (x) range, 0.02 to 0.3. The results are obtained using predictions for the measured asymmetries generated from four representative fits to polarized deep inelastic scattering data. We also consider the dependence of the DeltaG constraint on the choice of the theoretical scale, a dominant uncertainty in these predictions.
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206
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207
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Poster Session 1: Ablation of SVT and VT. Europace 2009. [DOI: 10.1093/europace/euq212] [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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208
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Measurements of single and double spin asymmetry inppelastic scattering in the CNI region with a polarized atomic hydrogen gas jet target. Int J Clin Exp Med 2009. [DOI: 10.1103/physrevd.79.094014] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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209
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Physiological uptake of 18F-fluorodeoxyglucose in uterine endometrium and myometrium: correlation with uterine motility evaluated by cine magnetic resonance imaging. Acta Radiol 2009; 50:455-61. [PMID: 19373569 DOI: 10.1080/02841850902839692] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
BACKGROUND Accumulation of (18)F-fluorodeoxyglucose ((18)F-FDG) in the uterine endometrium and uterine motility are dependent on menstrual cycle. However, the relationship between them remains unknown. PURPOSE To investigate the relationship between radiometabolic activity of (18)F-FDG in the uterus and uterine motility observed by cine magnetic resonance imaging (MRI). MATERIAL AND METHODS The study population consisted of 65 healthy, fertile women, selected from 229 women who underwent positron emission tomography (PET), computed tomography (CT), and MRI for cancer screening at our facility. They were divided into three groups according to their menstrual cycle phases: menstrual, follicular-periovulatory, and luteal. Regions of interest (ROIs) were placed over the endometrium and myometrium to calculate the standardized uptake value (SUV). Uterine peristalsis and contraction shown by cine MR imaging were evaluated visually, and the correlation between FDG uptake and uterine movements was assessed. RESULTS After excluding nine patients due to inadequate images, 56 patients (19 follicular-periovulatory, 27 luteal, and 10 menstrual) were analyzed. FDG uptake of the endometrium, frequency of peristalsis, and the presence of sustained contraction varied according to the menstruation cycle, with a tendency toward greater uptake in the menstrual phase, but there was little relationship between the frequency of uterine peristalsis and FDG accumulation in the uterus. Significantly higher FDG accumulation in the endometrium was observed in patients with sustained contractions (3.32+/-1.47) than in those without contractions (2.45+/-0.66). CONCLUSION Our preliminary data suggest that FDG accumulation in the endometrium tends to be higher in patients with uterine contraction, although there was no significant correlation between uterine peristalsis and FDG uptake in the uterine myometrium or endometrium.
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210
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Observation of two-source interference in the photoproduction reaction AuAu --> AuAurho0. PHYSICAL REVIEW LETTERS 2009; 102:112301. [PMID: 19392193 DOI: 10.1103/physrevlett.102.112301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2008] [Indexed: 05/27/2023]
Abstract
In ultraperipheral relativistic heavy-ion collisions, a photon from the electromagnetic field of one nucleus can fluctuate to a quark-antiquark pair and scatter from the other nucleus, emerging as a rho{0}. The rho{0} production occurs in two well-separated (median impact parameters of 20 and 40 F for the cases considered here) nuclei, so the system forms a two-source interferometer. At low transverse momenta, the two amplitudes interfere destructively, suppressing rho{0} production. Since the rho{0} decays before the production amplitudes from the two sources can overlap, the two-pion system can only be described with an entangled nonlocal wave function, and is thus an example of the Einstein-Podolsky-Rosen paradox. We observe this suppression in 200 GeV per nucleon-pair gold-gold collisions. The interference is 87%+/-5%(stat.)+/-8%(syst.) of the expected level. This translates into a limit on decoherence due to wave function collapse or other factors of 23% at the 90% confidence level.
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211
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Indications of conical emission of charged hadrons at the BNL relativistic heavy ion collider. PHYSICAL REVIEW LETTERS 2009; 102:052302. [PMID: 19257508 DOI: 10.1103/physrevlett.102.052302] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2008] [Indexed: 05/27/2023]
Abstract
Three-particle azimuthal correlation measurements with a high transverse momentum trigger particle are reported for pp, d+Au, and Au+Au collisions at sqrt[s_{NN}]=200 GeV by the STAR experiment. Dijet structures are observed in pp, d+Au and peripheral Au+Au collisions. An additional structure is observed in central Au+Au data, signaling conical emission of correlated charged hadrons. The conical emission angle is found to be theta=1.37+/-0.02(stat)-0.07+0.06(syst), independent of p_{ perpendicular}.
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212
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208. Monitoring of Urinary Biopyrrins After Rat Cardiac Transplantation: Non-Invasive and Earlier Prediction of Acute Rejection by a Sensitive Oxidative Marker. J Surg Res 2009. [DOI: 10.1016/j.jss.2008.11.250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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213
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Abstract No. 251: Coil Embolization for Portosystemic Venous Shunts Without Liver Cirrhosis - Outcomes and Effects to Liver Function. J Vasc Interv Radiol 2009. [DOI: 10.1016/j.jvir.2008.12.246] [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] Open
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214
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Abstract
The relationship between Helicobacter pylori eradication and reflux esophagitis is controversial. We analyzed the development of reflux esophagitis and the change in the grade of pre-existing reflux esophagitis after eradication. Enrolled were 559 Japanese patients who received eradication therapy for H. pylori. The grade of reflux esophagitis by endoscopy before and after therapy was evaluated retrospectively. No esophagitis was present before eradication in 526 patients. H. pylori was and was not eradicated in 429 and 97, respectively. Reflux esophagitis developed in 40 of the eradication group and in three of the treatment failure group, with prevalence higher with successful eradication (P = 0.04). Successful eradication and hiatus hernia were significant risk factors for reflux esophagitis development. Twenty-seven of 33 patients with pre-existing reflux esophagitis had successful eradication and six treatment failure. The reflux esophagitis grade worsened in two (Los Angeles classification from A to B) and improved in 14 patients after eradication. With treatment failure, reflux esophagitis worsened in none and improved in three patients. There showed no significant change in the grade of pre-existing reflux esophagitis after H. pylori eradication but the sample size was too small to evaluate the difference. In conclusion, the eradication of H. pylori increases the prevalence of reflux esophagitis, and hiatus hernia was a significant risk factor for the development of reflux esophagitis.
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Abstract
The relationship between Helicobacter pylori eradication and reflux esophagitis is controversial. We analyzed the development of reflux esophagitis and the change in the grade of pre-existing reflux esophagitis after eradication. Enrolled were 559 Japanese patients who received eradication therapy for H. pylori. The grade of reflux esophagitis by endoscopy before and after therapy was evaluated retrospectively. No esophagitis was present before eradication in 526 patients. H. pylori was and was not eradicated in 429 and 97, respectively. Reflux esophagitis developed in 40 of the eradication group and in three of the treatment failure group, with prevalence higher with successful eradication (P = 0.04). Successful eradication and hiatus hernia were significant risk factors for reflux esophagitis development. Twenty-seven of 33 patients with pre-existing reflux esophagitis had successful eradication and six treatment failure. The reflux esophagitis grade worsened in two (Los Angeles classification from A to B) and improved in 14 patients after eradication. With treatment failure, reflux esophagitis worsened in none and improved in three patients. There showed no significant change in the grade of pre-existing reflux esophagitis after H. pylori eradication but the sample size was too small to evaluate the difference. In conclusion, the eradication of H. pylori increases the prevalence of reflux esophagitis, and hiatus hernia was a significant risk factor for the development of reflux esophagitis.
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C5a Inhibitory Peptide Combined With Gabexate Mesilate Is a Clinically Available Candidate for Preventing the Instant Blood-Mediated Inflammatory Reaction. Transplant Proc 2009; 41:67-8. [DOI: 10.1016/j.transproceed.2008.10.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2008] [Accepted: 10/29/2008] [Indexed: 11/16/2022]
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218
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System-size independence of directed flow measured at the BNL relativistic heavy-ion collider. PHYSICAL REVIEW LETTERS 2008; 101:252301. [PMID: 19113699 DOI: 10.1103/physrevlett.101.252301] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2008] [Indexed: 05/27/2023]
Abstract
We measure directed flow (v_{1}) for charged particles in Au+Au and Cu+Cu collisions at sqrt[s_{NN}]=200 and 62.4 GeV, as a function of pseudorapidity (eta), transverse momentum (p_{t}), and collision centrality, based on data from the STAR experiment. We find that the directed flow depends on the incident energy but, contrary to all available model implementations, not on the size of the colliding system at a given centrality. We extend the validity of the limiting fragmentation concept to v_{1} in different collision systems, and investigate possible explanations for the observed sign change in v_{1}(p_{t}).
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219
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Suppression pattern of neutral pions at high transverse momentum in Au + Au collisions at sqrt[sNN]=200 GeV and constraints on medium transport coefficients. PHYSICAL REVIEW LETTERS 2008; 101:232301. [PMID: 19113542 DOI: 10.1103/physrevlett.101.232301] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2008] [Indexed: 05/27/2023]
Abstract
For Au + Au collisions at 200 GeV, we measure neutral pion production with good statistics for transverse momentum, pT, up to 20 GeV/c. A fivefold suppression is found, which is essentially constant for 5 < pT < 20 GeV/c. Experimental uncertainties are small enough to constrain any model-dependent parametrization for the transport coefficient of the medium, e.g., q in the parton quenching model. The spectral shape is similar for all collision classes, and the suppression does not saturate in Au + Au collisions.
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220
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Forward neutral-pion transverse single-spin asymmetries in p + p collisions at sqrt[s] = 200 GeV. PHYSICAL REVIEW LETTERS 2008; 101:222001. [PMID: 19113478 DOI: 10.1103/physrevlett.101.222001] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2008] [Indexed: 05/27/2023]
Abstract
We report precision measurements of the Feynman x (xF) dependence, and first measurements of the transverse momentum (pT) dependence, of transverse single-spin asymmetries for the production of pi0 mesons from polarized proton collisions at sqrt[s] = 200 GeV. The xF dependence of the results is in fair agreement with perturbative QCD model calculations that identify orbital motion of quarks and gluons within the proton as the origin of the spin effects. Results for the pT dependence at fixed xF are not consistent with these same perturbative QCD-based calculations.
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221
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Influence of IOP measurement through the wrong eyepiece of the slit lamp on Goldmann applanation tonometry. Eur J Ophthalmol 2008; 18:910-4. [PMID: 18988161 DOI: 10.1177/112067210801800609] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE This study examined whether intraocular pressure (IOP) measurements through the wrong eyepiece of the slit lamp may be a source of error. METHODS Seven skilled observers measured the IOP from seven healthy subjects. The observers used a Haag-Streit Goldmann applanation tonometer with two types of slit lamps (Haag-Streit and Rodenstock). In the Haag-Streit slit lamp the prism of the tonometer is aligned with the right part of the slit lamp optics. Conversely, in the Rodenstock slit lamp, the prism is aligned with the left. Each observer measured the IOP of each subject through the right eyepiece, through the left eyepiece, and under binocular vision. RESULTS The IOP measured with the left eyepiece of the Haag-Streit slit lamp was significantly higher than that measured with the right eyepiece and binocular vision. The IOP measured with the right eyepiece of the Rodenstock slit lamp was significantly higher than that measured with the left eyepiece and binocular vision. CONCLUSIONS IOP measurement through the wrong eyepiece of the slit lamp may be a source of error.
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222
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Unusually small electrical resistance of three-dimensional nanoporous gold in external magnetic fields. PHYSICAL REVIEW LETTERS 2008; 101:166601. [PMID: 18999696 DOI: 10.1103/physrevlett.101.166601] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2007] [Revised: 06/27/2008] [Indexed: 05/27/2023]
Abstract
We report the electric conductivity of three-dimensional (3D) nanoporous gold at low temperatures and in strong magnetic fields. It was found that topologically disordered 3D nanoporosity leads to extremely low magnetoresistance and anomalous temperature dependence as the characteristic length of nanoporous gold is tuned to be approximately 14 nm. This study underscores the importance of 3D topology of a nanostructure on electronic transport properties and has implications in manipulating electron transport by tailoring 3D nanostructures.
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223
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Onset of pi(0) suppression studied in Cu+Cu collisions at sqrt S NN=22.4, 62.4, and 200 GeV. PHYSICAL REVIEW LETTERS 2008; 101:162301. [PMID: 18999660 DOI: 10.1103/physrevlett.101.162301] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2008] [Indexed: 05/27/2023]
Abstract
Neutral pion transverse momentum (p(T)) spectra at midrapidity (|y| less than or approximately 0.35) were measured in Cu+Cu collisions at sqrt[s(NN)]=22.4, 62.4, and 200 GeV. Relative to pi_(0) yields in p+p collisions scaled by the number of inelastic nucleon-nucleon collisions (N(coll) the pi_(0) yields for p(T) more than or approximately 2 GeV/c in central Cu+Cu collisions are suppressed at 62.4 and 200 GeV whereas an enhancement is observed at 22.4 GeV. A comparison with a jet-quenching model suggests that final state parton energy loss dominates in central Cu+Cu collisions at 62.4 and 200 GeV, while the enhancement at 22.4 GeV is consistent with nuclear modifications in the initial state alone.
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224
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Effects of Ultrasound on the Proliferation and Differentiation of Cementoblast Lineage Cells. J Periodontol 2008; 79:1984-90. [DOI: 10.1902/jop.2008.080081] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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225
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J/psi production in sqrt s_NN=200 GeV Cu+Cu collisions. PHYSICAL REVIEW LETTERS 2008; 101:122301. [PMID: 18851363 DOI: 10.1103/physrevlett.101.122301] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2007] [Indexed: 05/26/2023]
Abstract
Yields for J/psi production in Cu+Cu collisions at sqrt s_NN=200 GeV have been measured over the rapidity range |y|<2.2 and compared with results in p+p and Au+Au collisions at the same energy. The Cu+Cu data offer greatly improved precision over existing Au+Au data for J/psi production in collisions with small to intermediate numbers of participants, in the range where the quark-gluon plasma transition threshold is predicted to lie. Cold nuclear matter estimates based on ad hoc fits to d+Au data describe the Cu+Cu data up to N_part approximately 50, corresponding to a Bjorken energy density of at least 1.5 GeV/fm(3).
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226
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Carbon Ion Beam-induced Gene Expression Profiles in Human Tumors with Different p53 Status. Int J Radiat Oncol Biol Phys 2008. [DOI: 10.1016/j.ijrobp.2008.06.612] [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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227
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An iatrogenic hepatic subcapsular biloma successfully treated by percutaneous drainage and endoscopic biliary stenting. Endoscopy 2008; 40 Suppl 2:E42-3. [PMID: 18300200 DOI: 10.1055/s-2007-966852] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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228
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Particle-species dependent modification of jet-induced correlations in Au+Au collisions at sqrt[s_{NN}]=200 GeV. PHYSICAL REVIEW LETTERS 2008; 101:082301. [PMID: 18764605 DOI: 10.1103/physrevlett.101.082301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2007] [Indexed: 05/26/2023]
Abstract
Measurements in Au+Au collisions at sqrt[s_{NN}]=200 GeV of jet correlations for a trigger hadron at intermediate transverse momentum (p_{T,trig}) with associated mesons or baryons at lower p_{T,assoc} indicate strong modification of the away-side jet. The ratio of jet-associated baryons to mesons increases with centrality and p_{T,assoc}. For the most central collisions, the ratio is similar to that for inclusive measurements. This trend is incompatible with in-vacuum fragmentation but could be due to jetlike contributions from correlated soft partons, which recombine upon hadronization.
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229
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[Open stent-grafting for saccular aneurysms of the distal arch and descending aorta; report of a case]. KYOBU GEKA. THE JAPANESE JOURNAL OF THORACIC SURGERY 2008; 61:793-796. [PMID: 18697462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We report the utility of an open stent-grafting for saccular aneurysms of the distal arch and descending aorta. A 68-year-old man showed a radiological abnormality on a chest X-ray film. Chest computed tomography (CT) demonstrated saccular aneurysms of the distal arch and descending aorta. Open stent-grafting was performed using a homemade device. The postoperative course was uneventful. Postoperative CT showed satisfactory placement of the endograft, without extravasation. Open stent-grafting was a useful therapeutic procedure in this case of multiple aneurysms.
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230
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Health-related quality of life after radical cystectomy for bladder cancer: a comparison of ileal conduit and orthotopic bladder replacement. BJU Int 2008. [DOI: 10.1046/j.1464-410x.2002.02529.x] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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231
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Source breakup dynamics in Au + Au collisions at sqrt[s(NN)]=200 GeV via three-dimensional two-pion source imaging. PHYSICAL REVIEW LETTERS 2008; 100:232301. [PMID: 18643489 DOI: 10.1103/physrevlett.100.232301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2007] [Indexed: 05/26/2023]
Abstract
A three-dimensional correlation function obtained from midrapidity, low p(T), pion pairs in central Au+Au collisions at sqrt[s(NN)]=200 GeV is studied. The extracted model-independent source function indicates a long range tail in the directions of the pion pair transverse momentum (out) and the beam (long). A proper breakup time tau(0) ~ 9 fm/c and a mean proper emission duration Delta tau ~ 2 fm/c, leading to sizable emission time differences ({|Delta t(LCM)|} approximately 12 fm/c), are required to allow models to be successfully matched to these tails. The model comparisons also suggest an outside-in "burning" of the emission source reminiscent of many hydrodynamical models.
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232
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Specific gastroduodenoscopic findings in Crohn's disease: Comparison with findings in patients with ulcerative colitis and gastroesophageal reflux disease. Dig Liver Dis 2008; 40:468-75. [PMID: 18328794 DOI: 10.1016/j.dld.2008.01.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2007] [Revised: 01/16/2008] [Accepted: 01/21/2008] [Indexed: 12/11/2022]
Abstract
BACKGROUND Crohn's disease patients often carry gastroduodenal lesions. However, few reports have addressed specific gastroduodenoscopic findings in Crohn's disease patients. METHODS The gastroduodenoscopic findings of 63 Crohn's disease patients were examined. Those of 62 ulcerative colitis and 63 age- and gender-matched gastroesophageal reflux disease patients were also reviewed as controls. Findings of bamboo-joint-like appearance, gastric antral erosions, and duodenal lesions were the specific findings that were highlighted. RESULTS Of 63 Crohn's disease patients, 47 (75%) had at least one of the specific gastroduodenoscopic findings, and the prevalence of these findings was significantly higher in Crohn's disease patients than in ulcerative colitis and gastroesophageal reflux disease patients (ulcerative colitis, 24/62, 39%; gastroesophageal reflux disease, 15/63, 24%, P < 0.0001). In particular, bamboo-joint-like appearance was almost unique to Crohn's disease patients (Crohn's disease, 28/63, 44%; ulcerative colitis, 3/62, 5%; gastroesophageal reflux disease, 0/63, 0%, P < 0.0001). Analysis of the relationship between the Crohn's disease patient's background and gastrodunodenoscopic findings revealed that both patients with disease affecting the ileum and those with previous gut operations were more likely to exhibit the specific gastroduodenoscopic findings (P = 0.030 and P = 0.043, respectively). CONCLUSION Specific gastroduodenoscopic findings were observed in Crohn's disease patients. In particular, bamboo-joint-like appearance could be a unique marker of Crohn's disease.
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233
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Effects of menstrual cycle on gene transfection through mouse vagina for DNA vaccine. Int J Pharm 2008; 360:164-70. [PMID: 18573624 DOI: 10.1016/j.ijpharm.2008.04.038] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2007] [Revised: 04/08/2008] [Accepted: 04/21/2008] [Indexed: 11/17/2022]
Abstract
Human immunodeficiency virus (HIV) infections mainly occur through the vaginal and rectal mucosal membranes. In the present study, to develop a DNA vaginal vaccine against viral and bacterial infections, the effects of the menstrual cycle on DNA transfection through the vaginal mucosa in female mice and transfection enhancement by electroporation, a chelating agent, cell-penetrating peptides (CPP) and nuclear localizing signals (NLS) were investigated. The transfection efficiencies of a marker plasmid DNA (pDNA), pCMV-Luc, on the vaginal mucosal membrane in mice at the stages of metestrus and diestrus were significantly higher than those at the stages of proestrus and estrus. The gene expression was markedly enhanced by electroporation and by pretreatment with the chelating agent. The highest level of expression was obtained by 2h pretreatment with 5% citric acid solution combined with electroporation with 15 pulses at 250 V/cm for 5 milliseconds (ms). Furthermore, a synergistic promoting effect on pDNA transfection was obtained by co-administration of CPP, the Tat peptide analog, and NLS, the NF-kappaB analog. These results indicate that effective DNA vaccination administered through the vaginal tract is possible by selecting the menstrual stage and overcoming the mucosal barrier using a combination of methods that promotes uptake.
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234
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Clinical and electrophysiological characteristics of patients having atrial flutter with 1:1 atrioventricular conduction. Europace 2008; 10:284-8. [DOI: 10.1093/europace/eun012] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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[Right atrium rupture due to blunt trauma]. KYOBU GEKA. THE JAPANESE JOURNAL OF THORACIC SURGERY 2008; 61:188-190. [PMID: 18323181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We report 2 cases of surgical treatment of blunt cardiac trauma. The postoperative course was uneventful in either case. Pericardial drainage in patients with cardiac rupture should be performed with preparation for thoracotomy. Case 1: A 34-year-old male, hit in the chest by a collapsing 700-kg steel rod, was transported to our hospital via ambulance. The patient was diagnosed as having a cardiac rupture by echocardiography and underwent emergency thoracotomy. The right atrium near the inferior vena cava (IVC) was damaged, though bleeding from the wound had already ceased. No suture hemostusis was needed. Case 2: A 63-year-old female was hit by a car and transported to our hospital due to blunt trauma to the chest. Low blood pressure and chest computed tomography demonstrated cardiac tamponade, and subxiphoid pericardial drainage was performed. Blood pressure was recovered, but persistent hemorrhage necessitated emergency thoracotomy, which revealed a laceration at the right atrium near IVC. The injury was sutured to achieve complete hemostasis.
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236
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Mapping quantitative trait loci for proteinuria-induced renal collagen deposition. Kidney Int 2008; 73:1017-23. [PMID: 18305463 DOI: 10.1038/ki.2008.7] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The progression of chronic kidney disease is a complex process influenced by genetic factors. Proteinuria is a predictor of functional deterioration and an accelerator of disease progression through renal parenchymal damage and interstitial fibrosis. To determine genetic components that might mediate renal fibrosis due to proteinuria, we mapped loci influencing the phenotype of two mouse strains differing in proteinuria-induced renal type I collagen (COLI) deposition. Collagen I deposition in 129S1/svImJ and C57BL/6J mice differs significantly among tested strains. We backcrossed 120 hemi-nephrectomized (129S1/svImJ x C57BL/6J) F1 x 129S1/svImJ backcrossed mice loaded with bovine serum albumin giving rise to proteinuria and renal COLI deposition. Quantitative trait loci (QTL) mapping was performed and our analysis identified one suggestive linkage for renal COLI deposition peaking at 87 cM near D2Mit224 (logarithm of odds: 2.41) on Chr 2. In silico analysis uncovered nine candidate genes. Hence, although more studies are needed, these QTL provide an initial cue to subsequent gene discovery, which might help unravel the genetics of renal fibrosis.
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237
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Abstract
Gap junctions are present in the juxtaglomerular apparatus enabling intercellular communication. Our study determined the location of different connexin subtypes within the juxtaglomerular apparatus of the rat, and the role of these subtypes in renal hemodynamics through the use of specific mimetic peptides. Immunohistochemical analysis showed connexins 37 and 40 expression in the endothelial and renin-secreting cells of the afferent arteriole, while connexin 40 was also found in extra- and intraglomerular mesangial cells. In contrast, connexin 43 was weakly expressed in endothelial cells of the afferent arteriole and within the glomerulus. Intra-renal infusion of the peptides (GAP) reported to block specific gap junctions ((Cx37,43)GAP27 or (Cx40)GAP27), elevated blood pressure, plasma renin activity, and angiotensin II levels, while decreasing renal plasma flow without a significant change in the glomerular filtration rate. Subsequent restoration of blood pressure reduced both renal plasma flow and glomerular filtration rate. In contrast, (Cx43)GAP26 reduced glomerular filtration rate without alterations in blood pressure, renal plasma flow, plasma renin activity, or angiotensin II levels. Hence, connexins 37 and 40 are expressed in the rat juxtaglomerular apparatus and these proteins control, in part, the renin-angiotensin system and renal autoregulation.
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238
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Role of ambiguity of facial expression in emotion estimation. Front Hum Neurosci 2008. [DOI: 10.3389/conf.neuro.09.2009.01.412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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239
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Brain metastases from oncocytic carcinoma of the submandibular gland. Int J Oral Maxillofac Surg 2007. [DOI: 10.1016/j.ijom.2007.09.017] [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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240
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Elliptic flow for phi mesons and (anti)deuterons in Au+Au collisions at square root of sNN=200 GeV. PHYSICAL REVIEW LETTERS 2007; 99:052301. [PMID: 17930746 DOI: 10.1103/physrevlett.99.052301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2007] [Indexed: 05/25/2023]
Abstract
Differential elliptic flow (v(2)) for phi mesons and (anti)deuterons (d)d is measured for Au+Au collisions at square root of sNN=200 GeV. The v(2) for phi mesons follows the trend of lighter pi+/- and K+/- mesons, suggesting that ordinary hadrons interacting with standard hadronic cross sections are not the primary driver for elliptic flow development. The v(2) values for (d)d suggest that elliptic flow is additive for composite particles. This further validation of the universal scaling of v(2) per constituent quark for baryons and mesons suggests that partonic collectivity dominates the transverse expansion dynamics.
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241
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Early initiation of polymyxin B-immobilized fiber therapy effective for septic shock after aortic replacement. Ann Thorac Cardiovasc Surg 2007; 13:287-9. [PMID: 17717510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2006] [Accepted: 12/28/2006] [Indexed: 05/16/2023] Open
Abstract
A 76-year-old female underwent ascending aorta and partial arch replacement. She developed septic shock on postoperative day 6. She was administered dopamine, 10 microg x kg(-1) x min(-1); dobutamine, 5 microg x kg(-1) x min(-1); and norepinephrine, 0.3 microg x kg(-1) x min(-1). However, the blood pressure was 74/40 mmHg. Direct hemoperfusion using polymyxin B-immobilized fiber (PMX-DHP) was started; 3 h later, the blood pressure increased to 118/54 mmHg. Norepinephrine was stopped, and dopamine and dobutamine doses were decreased to 5 microg x kg(-1) x min(-1) 3 and 12 h after completing PMX-DHP, respectively. In suspected septic shock, early PMX-DHP simultaneously with drug treatment facilitates hemodynamic improvement.
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242
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Vascular compliance is secured under angiotensin inhibition in non-diabetic chronic kidney diseases. J Hum Hypertens 2007; 22:38-47. [PMID: 17653243 DOI: 10.1038/sj.jhh.1002264] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Cardiovascular diseases constitute major cause of death in chronic kidney diseases (CKDs). We examined the effects of angiotensin inhibition either with angiotensin-converting enzyme inhibitor or with angiotensin receptor blocker on patient prognosis and heart-ankle pulse wave velocity (haPWV) in CKDs. Randomized controlled study was performed on 102 patients with non-diabetic CKDs. Patients were divided into two groups with or without angiotensin inhibition, and followed until death, creatinine clearance was halved or starting renal replacement therapy, whichever occurred first. For 4 years, haPWV was assessed repeatedly in the surviving patients. While both groups showed well blood pressure control throughout 4 years (129+/-1 to 131+/-2/71+/-1 to 73+/-2 mm Hg), renal prognosis was better in angiotensin inhibition group (P<0.05). In addition, angiotensin inhibition reduced cardiovascular and renal death (P<0.05). Age, sex, heart rate, systolic blood pressure and proteinuria were correlated to haPWV (R(2)=0.76, P<0.0001). Although haPWV was similar between two groups at the start of the study (1098+/-31 vs 1094+/-37 cm/s), it was higher in patients without angiotensin inhibition than that with angiotensin inhibition 4 years later (1034+/-38 cm/s (n=28) vs 1242+/-37 cm/s (n=23), P<0.01). The present results provided the evidence that angiotensin inhibition arrested a time-dependent elevation of haPWV in non-diabetic CKDs, conferring organ protection. Furthermore, our data indicated that angiotensin inhibition improved patient prognosis in non-diabetic chronic kidney diseases with mild-to-moderate renal dysfunction.
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243
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THE PROTEIN S THROMBIN SENSITIVE REGION CONTRIBUTES REGULATION OF WARFARIN TREATED DES-GAMMA-CARBOXYLATED PROTEIN S SECRETION: A STUDY OF A NOVEL SPLICE SITE MUTATION OF PROTEIN S GENE AND ITS MOLECULAR CONSEQUENCES. J Thromb Haemost 2007. [DOI: 10.1111/j.1538-7836.2007.tb01011.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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244
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System size and energy dependence of jet-induced hadron pair correlation shapes in Cu+Cu and Au+Au collisions at square root sNN=200 and 62.4 GeV. PHYSICAL REVIEW LETTERS 2007; 98:232302. [PMID: 17677902 DOI: 10.1103/physrevlett.98.232302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2006] [Indexed: 05/16/2023]
Abstract
We present azimuthal angle correlations of intermediate transverse momentum (1-4 GeV/c) hadrons from dijets in Cu+Cu and Au+Au collisions at square root sNN=62.4 and 200 GeV. The away-side dijet induced azimuthal correlation is broadened, non-Gaussian, and peaked away from Delta phi=pi in central and semicentral collisions in all the systems. The broadening and peak location are found to depend upon the number of participants in the collision, but not on the collision energy or beam nuclei. These results are consistent with sound or shock wave models, but pose challenges to Cherenkov gluon radiation models.
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245
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J/psi production versus transverse momentum and rapidity in p+p collisions at square root s=200 GeV. PHYSICAL REVIEW LETTERS 2007; 98:232002. [PMID: 17677900 DOI: 10.1103/physrevlett.98.232002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2006] [Indexed: 05/16/2023]
Abstract
J/psi production in p+p collisions at square root s=200 GeV has been measured by the PHENIX experiment at the BNL Relativistic Heavy Ion Collider over a rapidity range of -2.2<y<2.2 and a transverse momentum range of 0<pT<9 GeV/c. The size of the present data set allows a detailed measurement of both the pT and the rapidity distributions and is sufficient to constrain production models. The total cross section times the branching ratio is Bll sigma pp J/psi=178+/-3stat+/-53sys+/-18norm nb.
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246
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J/psi production versus centrality, transverse momentum, and rapidity in Au+Au collisions at square root sNN=200 GeV. PHYSICAL REVIEW LETTERS 2007; 98:232301. [PMID: 17677901 DOI: 10.1103/physrevlett.98.232301] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2006] [Indexed: 05/16/2023]
Abstract
The PHENIX experiment at the BNL Relativistic Heavy Ion Collider (RHIC) has measured J/psi production for rapidities -2.2<y<2.2 in Au+Au collisions at square root sNN=200 GeV. The J/psi invariant yield and nuclear modification factor RAA as a function of centrality, transverse momentum, and rapidity are reported. A suppression of J/psi relative to binary collision scaling of proton-proton reaction yields is observed. Models which describe the lower energy J/psi data at the CERN Super Proton Synchrotron invoking only J/psi destruction based on the local medium density predict a significantly larger suppression at RHIC and more suppression at midrapidity than at forward rapidity. Both trends are contradicted by our data.
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247
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Soluble Flt-1, a Novel Marker in Sepsis. Acad Emerg Med 2007. [DOI: 10.1197/j.aem.2007.03.1231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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248
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Predictive factors of efficacy of leukocytapheresis for steroid-resistant ulcerative colitis patients. Dig Liver Dis 2007; 39:422-9. [PMID: 17379587 DOI: 10.1016/j.dld.2007.01.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2006] [Revised: 11/02/2006] [Accepted: 01/11/2007] [Indexed: 12/11/2022]
Abstract
BACKGROUND The effectiveness of leukocytapheresis against ulcerative colitis has been reported. However, the efficacy of this therapy for steroid-resistant ulcerative colitis patients has hardly been examined. AIMS The aims of this study are to evaluate the efficacy of leukocytapheresis for steroid-resistant ulcerative colitis patients and to identify clinical factors that predict the efficacy of this therapy for these patients. METHODS Clinical factors of 71 steroid-resistant ulcerative colitis patients who underwent leukocytapheresis analysed. RESULTS Of those analysed, 53 (75%) patients showed an initial response to leukocytapheresis. Among cases with initial response, however, only 19 (27%) patients maintained remission for more than 6 months. Steroid-dependent course (Odds ratio =5.53, 95% confidence interval; 1.24-24.73) and a high C-reactive protein degree (Odds ratio=1.6, confidence interval; 1.09-2.35) were predictors of initial response to leukocytapheresis. Rapid response, which means remission induction within three leukocytapheresis sessions, was the only predictor of maintenance of remission for more than 6 months after successful leukocytapheresis therapy (odds ratio=8.01, confidence interval; 1.08-59.37). CONCLUSIONS Leukocytapheresis was effective for steroid-resistant ulcerative colitis patients. However, relapse was frequently observed within short periods after the initial response to this therapy. Patients without a rapid response should be treated with alternative or additional therapies.
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Scaling properties of azimuthal anisotropy in Au+Au and Cu+Cu Collisions at sqrt[s NN]=200 GeV. PHYSICAL REVIEW LETTERS 2007; 98:162301. [PMID: 17501413 DOI: 10.1103/physrevlett.98.162301] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2006] [Indexed: 05/15/2023]
Abstract
Differential measurements of elliptic flow (v2) for Au+Au and Cu+Cu collisions at sqrt[sNN]=200 GeV are used to test and validate predictions from perfect fluid hydrodynamics for scaling of v2 with eccentricity, system size, and transverse kinetic energy (KE T). For KE T identical with mT-m up to approximately 1 GeV the scaling is compatible with hydrodynamic expansion of a thermalized fluid. For large values of KE T mesons and baryons scale separately. Quark number scaling reveals a universal scaling of v2 for both mesons and baryons over the full KE T range for Au+Au. For Au+Au and Cu+Cu the scaling is more pronounced in terms of KE T, rather than transverse momentum.
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250
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Abstract
BACKGROUND Although Helicobacter pylori infection is closely associated with gastric cancer development, follow-up studies after H. pylori eradication are still scarce. AIM To clarify the cancer preventive effect of H. pylori eradication, with special attention to differences in effect according to histology. METHODS Patients who underwent H. pylori eradication therapy and were followed-up endoscopically for at least 1 year were analysed. The incidence of gastric cancer and factors associated with cancer development were investigated. RESULTS A total of 1807 patients were enrolled. Six of 1519 H. pylori eradicated and five of 288 persistent subjects developed gastric cancer. Four of the eradicated subjects developed the intestinal type and two the diffuse type, while four of the persistent subjects developed the intestinal type and one the diffuse type. Kaplan-Meier analysis indicated a significantly lower incidence in eradicated patients than in persistent patients. The incidence of intestinal type was significantly lower than in eradicated patients, while the diffuse type could not be evaluated because of the low incidence. CONCLUSIONS Helicobacter pylori-eradicated patients had a reduced incidence of gastric cancer compared with H. pylori-persistent patients, particularly the intestinal type, suggesting that H. pylori is strongly associated with intestinal-type gastric cancer.
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