368 results on '"Reddy SM"'
Search Results
2. Trace-element heterogeneity in rutile linked to dislocation structures: Implications for Zr-in-rutile geothermometry
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Verberne, R, Van Schrojenstein Lantman, HW, Reddy, SM, Alvaro, M, Wallis, D, Fougerouse, D, Langone, A, Saxey, DW, Rickard, WDA, Verberne, R [0000-0002-5529-1250], van Schrojenstein Lantman, HW [0000-0002-9100-9961], Reddy, SM [0000-0002-4726-5714], Wallis, D [0000-0001-9212-3734], Langone, A [0000-0002-7346-2922], and Apollo - University of Cambridge Repository
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plastic deformation ,diffusion ,trace elements ,low-angle boundaries ,rutile - Abstract
The trace-element composition of rutile is commonly used to constrain P-T-t-conditions for a wide range of metamorphic systems. However, recent studies have demonstrated the redistribution of trace elements in rutile via high-diffusivity pathways and dislocation-impurity associations related to the formation and evolution of microstructures. Here we investigate trace-element migration in low-angle boundaries formed by dislocation creep in rutile within an omphacite vein of the Lago di Cignana unit (Western Alps, Italy). Zr-in-rutile thermometry and inclusions of quartz in rutile and of coesite in omphacite constrain the conditions of rutile deformation to around the prograde boundary from high pressure to ultra-high pressure (~2.7 GPa) at temperatures of 500–565 °C. These results constrain the conditions of deformation of rutile and its effects on composition. Crystal-plastic deformation of a large rutile grain results in low-angle boundaries that generate a total misorientation of ~25°. Dislocations constituting one of these low-angle boundaries are enriched in common and uncommon trace elements, including Fe and Ca, providing evidence for diffusion and trapping of trace elements along the dislocation cores. The role of dislocation microstructures as fast-diffusion pathways must be evaluated when applying high-resolution analytical procedures as compositional disturbances might lead to erroneous interpretations for Ca and Fe. In contrast, our results indicate a trapping mechanism for Zr.
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- 2023
3. Development of a multiagency protocol to support people with No Recourse to Public Funds in Wolverhampton (UK)
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Reddy, SM, primary and Mahmood, H, additional
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- 2022
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4. Development of a multiagency protocol to support people with No Recourse to Public Funds in Wolverhampton (UK).
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Reddy, SM and Mahmood, H
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Background: No Recourse to Public Funds (NRPF) status is applied to individuals and families that are subject to immigration control, resulting in them having restricted access to state-funded benefits within England. NRPF is a public health risk as it increases the risk of destitution among vulnerable migrants. Aims: The aim of this study was to engage with public and voluntary sector staff within Wolverhampton working with people with a NRPF status to develop and create an easily accessible guide ('protocol') to help facilitate identification of appropriate cross-sector interventions and support. Methods: Data were collected via an online survey as well as face-to-face semi-structured interviews with local NRPF stakeholders. Results: Four themes emerged from the thematic analysis of participant responses: understanding NRPF statuses, varying support requirements, poor communication and awareness of vulnerabilities. Currently, in England, there does not appear to be a standardised localised protocol which can be used to reduce the complexities and confusion encountered by public and voluntary sectors who support people with NRPF status. Conclusion: The findings from this study have allowed the Wolverhampton NRPF to create an online information resource that includes training events to raise the awareness of NRPF, as well as the development of a localised multiagency protocol that has better equipped it to support and safeguard people with NRPF. [ABSTRACT FROM AUTHOR]
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- 2023
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5. Canal-Centering and Apical Transportation Ability of Similar Cross-Section NiTi Instruments Working with Different Kinematics—Micro-CT-based In Vitro Analysis
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Shareef Mohammed S, Reddy Smitha, Habeeb Aisha, Singh Thakur Veerandar, Firdaus Tamanna, and Bhattacharjee Priyendu
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apical transportation ,canal centering ,micro-computed tomography ,mtwo ,oneshape ,reciproc blue ,Pharmacy and materia medica ,RS1-441 ,Analytical chemistry ,QD71-142 - Abstract
ObjectiveEvaluating the canal-centering and apical transportation ability of endodontic file systems working with different kinematics but of similar cross section. Materials and MethodsSixty human maxillary first molar mesiobuccal (MB) roots were assigned to three experimental groups based on instrumentation techniques: Reciproc Blue (RB), Mtwo (M2), and OneShape (OS). Pre- and post-instrumentation micro-computed tomographic analysis was performed. Centering ability and apical transportation were analyzed at 3 mm, 6 mm, and 9 mm short of the apex. Statistical analysis was conducted using Mann–Whitney U test and Kruskal–Wallis test. ResultsOS showed better canal-centering ability than RB and M2 at 3 mm, 6 mm, and 9 mm. No significant difference among the tested groups was observed during the assessment of apical transportation (P < 0.05). ConclusionThe systems evaluated safely prepared curved MB canals with minimal canal transportation. OS showed superior canal-centering ability compared to the other two groups.
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- 2024
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6. A vision for documenting and sharing knowledge in conservation
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Schwartz, MW, Belhabib, D, Biggs, D, Cook, C, Fitzsimons, James, Giordano, AJ, Glew, L, Gottlieb, S, Kattan, G, Knight, AT, Lundquist, CJ, Lynam, AJ, Masuda, YJ, Mwampamba, TH, Nuno, A, Plumptre, AJ, Ray, JC, Reddy, SM, Runge, MC, Schwartz, MW, Belhabib, D, Biggs, D, Cook, C, Fitzsimons, James, Giordano, AJ, Glew, L, Gottlieb, S, Kattan, G, Knight, AT, Lundquist, CJ, Lynam, AJ, Masuda, YJ, Mwampamba, TH, Nuno, A, Plumptre, AJ, Ray, JC, Reddy, SM, and Runge, MC
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- 2019
7. Etching of fission tracks in monazite: An experimental study
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Jones, S, Gleadow, A, Kohn, B, Reddy, SM, Jones, S, Gleadow, A, Kohn, B, and Reddy, SM
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This study reports a range of etching and annealing experiments to establish the optimum conditions for the etching of fission tracks in monazite. The previously reported concentrated (12 M) HCl etchant at 90°C was found to cause grain loss from epoxy mounts and high degrees of grain corrosion, as did much longer etching times at lower temperatures. Using implanted 252Cf semi‐tracks, a series of experiments were performed on internal prismatic faces of monazite‐(Ce) crystals from the Palaeozoic Harcourt Granodiorite (Victoria, Australia) using an alternative 6 M HCl etchant, also at 90°C. Step‐etch results show optimal etching at 60–90 min. Further, an isothermal annealing experiment illustrated that the degree of annealing that can be expected during etching at 90°C under laboratory time scales is negligible. The etching rate between grains is not uniform, with a correlation demonstrated between over‐etched grains and high U and Th concentrations.
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- 2019
8. Atomic worlds: Current state and future of atom probe tomography in geoscience
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Saxey, DW, Moser, DE, Piazolo, S, Reddy, SM, and Valley, JW
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Atom Probe Tomography (APT) is rapidly finding new applications within the geosciences. Historically connected with materials science and semiconductor device applications, recent years have seen APT established as a useful tool for nanoscale geochemistry, offering unique capabilities when compared with conventional geoanalytical techniques. The ability to characterize 3D nanoscale chemistry with isotopic sensitivity has uncovered intricate details of complex trace element distributions within a variety of minerals. Already these advances are having an impact on long-standing questions within geochronology, planetary science and other fields. Future developments are likely to bring significant expansion in this research space.
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- 2018
9. Abstract P6-02-04: Ultrasound assessment of residual disease after neoadjuvant chemotherapy (NACT) in node positive triple negative breast cancer (TNBC)
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Adrada, BE, primary, Valero, V, additional, Reddy, SM, additional, Barcenas, CH, additional, Candelaria, R, additional, Wei, W, additional, and Rauch, GM, additional
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- 2019
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10. Abstract OT3-05-04: Phase II study of atezolizumab, cobimetinib, and eribulin in patients with recurrent or metastatic inflammatory breast cancer (IBC)
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Alexander, A, primary, Marx, AN, additional, Reddy, SM, additional, Reuben, JM, additional, Le-Petross, HC, additional, Lane, D, additional, Huang, ML, additional, Krishnamurthy, S, additional, Gong, Y, additional, Gombos, DS, additional, Patel, N, additional, Tung, CI, additional, Allen, RC, additional, Kandl, TJ, additional, Wu, J, additional, Liu, S, additional, Patel, AB, additional, Futreal, A, additional, Wistuba, I, additional, Layman, RM, additional, Valero, V, additional, Tripathy, D, additional, Ueno, NT, additional, and Lim, B, additional
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- 2019
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11. Abstract OT1-02-05: A single arm phase II study of adjuvant anti-PD1 (pembrolizumab) in combination with hormonal therapy in patients with hormone receptor (HR)-positive localized inflammatory breast cancer (IBC) who did not achieve a pathological complete response (pCR) to neoadjuvant chemotherapy
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Alexander, A, primary, Willey, J, additional, Sun, H, additional, Parker, CA, additional, Marx, AN, additional, Wood, AL, additional, Reddy, SM, additional, Reuben, JM, additional, Bassett, RL, additional, Le-Petross, HT, additional, Krishnamurthy, S, additional, Gong, Y, additional, Woodward, WA, additional, Valero, V, additional, Ueno, NT, additional, and Lim, B, additional
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- 2018
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12. Abstract P3-05-08: Lymphoid and myeloid cell characterization of inflammatory breast cancer tumor microenvironment and correlation to pathological complete response
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Reddy, SM, primary, Reuben, A, additional, Jiang, H, additional, Roszik, J, additional, Tetzlaff, MT, additional, Reuben, J, additional, Wang, L, additional, Tsujikawa, T, additional, Barua, S, additional, Rao, A, additional, Villareal, L, additional, Wood, A, additional, Woodward, W, additional, Ueno, NT, additional, Krishnamurthy, S, additional, Wargo, JA, additional, and Mittendorf, EA, additional
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- 2018
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13. A new method to extend the stress response of triboluminescent crystals by using hydrogels
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İncel, A, Reddy, SM, Demir, MM, İncel, A, Reddy, SM, and Demir, MM
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Polyacrylamide hydrogel entrapment of EuD4TEA or Cu(NCS)(py)2(PPh3) radically extends the emission time of the triboluminescent (TL) crystalline particles by a factor of 103, optimized when matching the hydrophilic/hydrophobic characteristics of the TL/gel components. Triboluminescence intensity improves with hydration of the TL/hydrogel composite. The composites may be used in impact-related sensor applications.
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- 2017
14. MIP-based protein profiling: A method for interspecies discrimination
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El-Sharif, HF, Stevenson, D, Reddy, SM, El-Sharif, HF, Stevenson, D, and Reddy, SM
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Due to recent public concern and interest in the authenticity and origin of meat, for example, the 2013 “horsemeat scandal” in the human food chain, novel sensor strategies for the discrimination between protein species are highly sought after. In this work, molecularly imprinted polymers (MIPs) are utilised for protein discrimination using electrochemical sensor and spectrophotometric techniques. MIP selectivity between two proteins of similar molecular weight (haemoglobin and serum albumin) were compared across three different species, namely pork, beef and human. Bulk MIPs resulted in Kd and Bmax values of 184±23 µM, and 582 µmol g-1 for BHb, 246.3±26 µM, and 673 µmol g-1 for HHb; 276±31 µM, and 467 µmol g-1 for PHb. With the aid of chemometrics, i.e. multivariate analysis and pattern recognition, distinctive protein profiles have been achieved for species discrimination in both spectrophotometric and electrochemical analysis experiments. MIP suitability and selectivity within complex matrices was also assessed using urine, human plasma and human serum. Pattern recognition MIP-based protein profiling demonstrated positive outputs yielding either a ‘bovine’ or ‘not-bovine’ outcome (p = 0.0005) for biological samples spiked with/without bovine using respective bovine haemoglobin MIPs.
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- 2017
15. Comparison of mitral valve area, pulmonary function and pulmonary artery hypertension in patients with chronic rheumatic mitral stenosis undergoing surgical closed mitral valvotomy (SCMV) versus percutaneous balloon mitral valvotomy (PBMV)
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Devendra Singh KH, Reddy SM, Grover A, and Thingnam SKS
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- 2006
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16. Study of pulmonary arterial pressures and histopathological changes in patients having
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Reddy SM, Joshi K, Shyam KS, and Thingnam
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- 2006
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17. Study of In-vivo vasodilatory effects of Nicorandil, nitroglycerine and diltiazem on radial artery
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Garg P, Reddy SM, Rohit MK, and Thingnam SKS
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- 2006
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18. Traumatic Transection of Main Stem Bronchus—A review of 7 cases
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Reddy SM, Das D, and Thingnam SKS
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- 2006
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19. Abstract P3-16-01: Immune characterization of inflammatory breast cancer and correlation to pathological complete response
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Reddy, SM, primary, Wargo, JA, additional, Reuben, A, additional, Reuben, J, additional, Woodward, W, additional, Ueno, N, additional, Mittendorf, EA, additional, and Krishnamurthy, S, additional
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- 2017
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20. Decreased Bacterial Diversity Characterizes the Altered Gut Microbiota in Patients With Psoriatic Arthritis, Resembling Dysbiosis in Inflammatory Bowel Disease
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Scher JU, Ubeda C, Artacho A, Attur M, Isaac S, Reddy SM, Marmon S, Neimann A, Brusca S, Patel T, Manasson J, Pamer EG, Littman DR, and Abramson SB
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Objective. To characterize the diversity and taxonomic relative abundance of the gut microbiota in patients with never-treated, recent-onset psoriatic arthritis (PsA). Methods. High-throughput 16S ribosomal RNA pyrosequencing was utilized to compare the community composition of gut microbiota in patients with PsA (n = 16), patients with psoriasis of the skin (n = 15), and healthy, matched control subjects (n = 17). Samples were further assessed for the presence and levels of fecal and serum secretory IgA (sIgA), proinflammatory proteins, and fatty acids. Results. The gut microbiota observed in patients with PsA and patients with skin psoriasis was less diverse when compared to that in healthy controls. This could be attributed to the reduced presence of several taxa. Samples from both patient groups showed a relative decrease in abundance of Coprococcus species, while samples from PsA patients were also characterized by a significant reduction in Akkermansia, Ruminococcus, and Pseudobutyrivibrio. Supernatants of fecal samples from PsA patients revealed an increase in sIgA levels and decrease in RANKL levels. Analysis of fatty acids revealed low fecal quantities of hexanoate and heptanoate in both patients with PsA and patients with psoriasis. Conclusion. Patients with PsA and patients with skin psoriasis had a lower relative abundance of multiple intestinal bacteria. Although some genera were concomitantly decreased in both conditions, PsA samples had a lower abundance of reportedly beneficial taxa. This gut microbiota profile in PsA was similar to that previously described in patients with inflammatory bowel disease and was associated with changes in specific inflammatory proteins unique to this group, and distinct from that in patients with skin psoriasis and healthy controls. Thus, the role of the gut microbiome in the continuum of psoriasis-PsA pathogenesis and the associated immune response merits further study.
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- 2015
21. Abstract P4-10-09: Relapse-free survival of triple negative breast cancer long term survivors and characterization of late events in MD Anderson experience
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Reddy, SM, primary, Sinha, A, additional, Syed, M, additional, Barcenas, C, additional, and Valero, V, additional
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- 2016
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22. Use of plastic-based analytical device, smartphone and chemometric tools to discriminate amines
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Reddy, SM, Bueno, L, Meloni, G, Paixao, TRLC, Reddy, SM, Bueno, L, Meloni, G, and Paixao, TRLC
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Amine-based volatile compounds released bymicroorganisms offer an alternative diagnostic approach for the identification of foodborne pathogens. Our objective has been to solvent cast cellulose acetate membranes to immobilise dyes and to use the resultant membranes as a plastic device to discriminate between different types of amines (triethylamine, isobutylamine, isopentylamine). The plastic device consisted of an array of membranes with five pH indicators (namely alizarin, bromophenol blue, chlorophenol red, methyl red and thymol blue). To analyse the data using a portable instrument, we used an iPhone (R) to obtain images and to extract red, green and blue colours (RGB) using in-house software before and after contact with each individual amine. All the RGB values extracted for each analyte allowed us to generate a unique colour pattern, which was used as input for non-supervised pattern recognition methods. Based on this analysis, it was possible to clearly discriminate between the amines studied without any misclassification, demonstrating that the device is well-suited for large-scale applications such as non-destructive methods to discriminate amines and, in future, for smart packaging applications in order to give early warning of rotting food that may lead to food poisoning. Additionally, a semi-quantitative analysis was performed and we have demonstrated that it is possible to quantify concentrations of amines down to 1 ppm.
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- 2015
23. Enhanced selectivity of hydrogel-based molecularly imprinted polymers (HydroMIPs) following buffer conditioning.
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El-Sharif, HF, Phan, QT, Reddy, SM, El-Sharif, HF, Phan, QT, and Reddy, SM
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We have investigated the effect of buffer solution composition and pH during the preparation, washing and re-loading phases within a family of acrylamide-based molecularly imprinted polymers (MIPs) for bovine haemoglobin (BHb), equine myoglobin (EMb) and bovine catalyse (BCat). We investigated water, phosphate buffer saline (PBS), tris(hydroxymethyl)aminomethane (Tris) buffer and succinate buffer. Throughout the study MIP selectivity was highest for acrylamide, followed by N-hydroxymethylacrylamide, and then N-iso-propylacrylamide MIPs. The selectivity of the MIPs when compared with the NIPs decreased depending on the buffer conditions and pH in the order of Tris>PBS>succinate. The Tris buffer provided optimum imprinting conditions at 50mM and pH 7.4, and MIP selectivities for the imprinting of BHb in polyacrylamide increased from an initial 8:1 to a 128:1 ratio. It was noted that the buffer conditions for the re-loading stage was important for determining MIP selectivity and the buffer conditions for the preparation stage was found to be less critical. We demonstrated that once MIPs are conditioned using Tris or PBS buffers (pH7.4) protein reloading in water should be avoided as negative effects on the MIP's imprinting capability results in low selectivities of 0.8:1. Furthermore, acidifying the pH of the buffer solution below pH 5.9 also has a negative impact on MIP selectivity especially for proteins with high isoelectric points. These buffer conditioning effects have also been successfully demonstrated in terms of MIP efficiency in real biological samples, namely plasma and serum.
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- 2014
24. Determination of protein binding affinities within hydrogel-based molecularly imprinted polymers (HydroMIPs)
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EL-Sharif, HF, Hawkins, DM, Stevenson, D, Reddy, SM, EL-Sharif, HF, Hawkins, DM, Stevenson, D, and Reddy, SM
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- 2014
25. DMC - Distributed and mobile collaboration workshop report
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Aiello, Marco, Dustdar, Schahram, Gall, Harald, Reddy, SM, Distributed Systems, and Intelligent Systems
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mobile computing ,business data processing - Abstract
The latest trends in distributed and mobile collaboration technologies allow people to move across team forms and organizational boundaries as well as to collaborate among/in organizations and communities. The ability to query the company's distributed knowledge base and to cooperate with co-workers is still a requirement, but new paradigms such as service-oriented computing increased pervasiveness, and mobility enable new scenarios and lead to higher complexity of systems. Independently of the business domain, private "collaboration" has become a hot issue. Virtual communities, may these be social networks or virtual enterprises, have enjoyed a tremendous popularity recently and are starting to require functionalities for collaboration in the broadest sense similar to those in business environments. The wide-spread availability of mobile devices makes support for mobility an arising topic in this domain as well.
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- 2007
26. Protein crystallization facilitated by molecularly imprinted polymers
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Saridakis, E, Khurshid, S, Govada, L, Phan, Q, Hawkins, D, Crichlow, GV, Lolis, E, Reddy, SM, Chayen, NE, Saridakis, E, Khurshid, S, Govada, L, Phan, Q, Hawkins, D, Crichlow, GV, Lolis, E, Reddy, SM, and Chayen, NE
- Abstract
We present a new initiative and its application, namely the design of molecularly imprinted polymers (MIPs) for producing protein crystals which are essential for determining high-resolution 3-D structures of proteins. MIPs, also referred to as ‘smart materials’ are made to contain cavities capable of rebinding protein, thus the fingerprint of the protein created on the polymer allows it to serve as an ideal template for crystal formation. We have shown that six different MIPs induced crystallization of nine proteins, yielding crystals in conditions that do not give crystals otherwise. The incorporation of MIPs in screening experiments gave rise to crystalline hits in 8- 10% of the trials for three target proteins. These hits would have been missed using other known nucleants. MIPs also facilitated the formation of large single crystals at metastable conditions for seven proteins. Moreover, the presence of MIPs has led to faster formation of crystals in all cases where crystals would appear eventually and to major improvement in diffraction in some cases. The MIPs were effective for their cognate proteins and also for other proteins, with size-compatibility being a likely criterion for efficacy. Atomic Force Microscopy (AFM) measurements demonstrated specific affinity between the MIPs cavities and a protein-functionalised AFM tip, corroborating our hypothesis that due to the recognition of proteins by the cavities, MIPs can act as nucleation inducing substrates (nucleants) by harnessing the proteins themselves as templates.
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- 2011
27. Electrochemical probing of selective haemoglobin binding in hydrogel-based molecularly imprinted polymers
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Reddy, SM, Sette, G, Phan, Q, Reddy, SM, Sette, G, and Phan, Q
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An electrochemical method has been developed for the probing of hydrogel-based molecularly imprinted polymers (HydroMIPs) on the surface of a glassy carbon electrode. HydroMIPs designed for bovine haemoglobin selectivity were electrochemically characterised and their rebinding properties were monitored using cyclic voltammetry. The electrochemical reduction of bovine oxyhaemoglobin (BHb) in solution was observed to occur at −0.460 V vs (Ag/AgCl) in 150 mM phosphate buffer solution (PBS). When the protein was selectively bound to the MIP, the electrochemical reduction of oxyhaemoglobin could be observed at a similar peak potential of −0.480 V vs (Ag/AgCl). When analysing the non-imprinted control polymer (NIP) interfaced at the electrode, which contained no protein, the peak reduction potential corresponded to that observed for dissolved oxygen in solution (−0.65 V vs (Ag/AgCl)). MIP and NIP (in the absence of protein) were interfaced at the electrode and protein allowed to diffuse through the polymers from the bulk solution end to the electrode. It was observed that whereas NIP exhibited a protein response within 10 min of protein exposure, up to 45 min of exposure time was required in the case of the MIP before a protein response could be obtained. Our results suggest that due to the selective nature of the MIP, BHb arrival at the electrode via diffusion is delayed by the MIP due to attractive selective interactions with exposed cavities, but not the NIP which is devoid of selective cavities.
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- 2011
28. Quantification and confocal imaging of protein specific molecularly imprinted polymers
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Hawkins, DM, Trache, A, Ellis, EA, Stevenson, D, Holzenburg, A, Meininger, GA, Reddy, SM, Hawkins, DM, Trache, A, Ellis, EA, Stevenson, D, Holzenburg, A, Meininger, GA, and Reddy, SM
- Abstract
We have employed FITC-albumin as the protein template molecule in an aqueous phase molecular imprinted polymer (HydroMIP) strategy. For the first time, the use of a fluorescently labelled template is reported, with subsequent characterisation of the smart material to show that the HydroMIP possess a significant molecular memory in comparison to that of the nonimprinted control polymer (HydroNIP). The imaging of the FITC-albumin imprinted HydroMIP using confocal microscopy is described, with the in situ removal of imprinted protein displayed in terms of observed changes in the fluorescence of the imprinted polymer, both before and after template elution (using a 10% SDS/10% AcOH (w/v) solution). We also report the imaging of a bovine haemoglobin (BHb) imprinted HydroMIP using two-photon confocal microscopy, and describe the effects of template elution upon protein autofluorescence. The findings further contribute to the understanding of aqueous phase molecular imprinting protocols, and document the use of fluorescence as a useful tool in template labelling/detection and novel imaging strategies.
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- 2006
29. Ductile to brittle shear zones in the Wyangala Fault, Cowra, New South Wales
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Reddy, SM, Fitzsimons, ICW, Collins, AS, Czarnota, K, Lennox, PG, Reddy, SM, Fitzsimons, ICW, Collins, AS, Czarnota, K, and Lennox, PG
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- 2003
30. The coexistence of pressure waves in the operation of quartz-crystal shear-wave sensors
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Reddy, SM, Jones, JP, Lewis, TJ, Reddy, SM, Jones, JP, and Lewis, TJ
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- 1998
31. In VitroMaturation and Fertilization of Buffalo Oocytes: Effects of Storage of Ovaries, IVM Temperatures, Storage of Processed Sperm and Fertilization Media
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Ravindranatha, BM, primary, Nandi, S, additional, Raghu, HM, additional, and Reddy, SM, additional
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- 2003
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32. Comparison of an in vitro tuberculosis interferon-gamma assay with delayed-type hypersensitivity testing for detection of latent Mycobacterium tuberculosis: a pilot study in rheumatoid arthritis.
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Greenberg JD, Reddy SM, Schloss SG, Kurucz OS, Bartlett SJ, Abramson SB, and Bingham CO III
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- 2008
33. In Vitro Maturation and Fertilization of Buffalo Oocytes: Effects of Storage of Ovaries, IVM Temperatures, Storage of Processed Sperm and Fertilization Media.
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Ravindranatha, BM, Nandi, S, Raghu, HM, and Reddy, SM
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OVARIES ,WATER buffalo ,REPRODUCTION - Abstract
Contents Studies were conducted to examine the possibility of preserving slaughterhouse-derived buffalo ovaries at 4°C for 0 (control), 12 and 24 h to maintain the developmental competence of the oocytes (experiment 1), to assess the effect of incubation temperature during oocyte maturation on rates of in vitro maturation (IVM) and in vitro fertilization (IVF) of buffalo oocytes and embryo development (experiment 2), and to examine the effect of storage at 25°C for 0 (control), 4 and 8 h of frozen–thawed buffalo sperm and BO and H-TALP as sperm processing and fertilization media on cleavage and embryo development in vitro of buffalo oocytes (experiment 3) in order to optimize the IVF technology in buffalo. Results suggested that storage of ovaries at 4°C for 12 or 24 h significantly (p < 0.05) reduced the developmental potential of oocytes. Incubation temperatures during the IVM influenced the fertilization rate but had no significant effect on maturation and subsequent embryo development. The incubation temperature of 38.5°C during IVM was found to be optimum for embryo production in vitro . Storage of frozen–thawed sperm at 25°C for 8 h significantly (p < 0.05) decreased its ability to cleave the oocytes. Sperm processed in BO medium had significantly (p < 0.05) higher ability to cleave the oocytes than the H-TALP medium. [ABSTRACT FROM AUTHOR]
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- 2003
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34. Stenosis of the main stem of the left coronary artery in a teenager with Takayasu's Arteritis.
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Reddy SM and Reddy SP
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- 2009
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35. The geochemical and geochronological implications of nanoscale trace-element clusters in rutile
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D. Plavsa, Steven M. Reddy, David W. Saxey, Denis Fougerouse, Andrea Agangi, Andrew R.C. Kylander-Clark, Rick Verberne, William D.A. Rickard, Verberne, R, Reddy, SM, Saxey, DW, Fougerouse, D, Rickard, WDA, Plavsa, D, Agangi, A, and Kylander-Clark, ARC
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010504 meteorology & atmospheric sciences ,Rutile ,Trace element ,Geochemistry ,geochronology ,trace elements ,Geology ,010502 geochemistry & geophysics ,01 natural sciences ,Nanoscopic scale ,0105 earth and related environmental sciences ,geochemistry - Abstract
The geochemical analysis of trace elements in rutile (e.g., Pb, U, and Zr) is routinely used to extract information on the nature and timing of geological events. However, the mobility of trace elements can affect age and temperature determinations, with the controlling mechanisms for mobility still debated. To further this debate, we use laser-ablation–inductively coupled plasma–mass spectrometry and atom probe tomography to characterize the micro- to nanoscale distribution of trace elements in rutile sourced from the Capricorn orogen, Western Australia. At the >20 µm scale, there is no significant trace-element variation in single grains, and a concordant U-Pb crystallization age of 1872 ± 6 Ma (2σ) shows no evidence of isotopic disturbance. At the nanoscale, clusters as much as 20 nm in size and enriched in trace elements (Al, Cr, Pb, and V) are observed. The 207Pb/206Pb ratio of 0.176 ± 0.040 (2σ) obtained from clusters indicates that they formed after crystallization, potentially during regional metamorphism. We interpret the clusters to have formed by the entrapment of mobile trace elements in transient sites of radiation damage during upper amphibolite facies metamorphism. The entrapment would affect the activation energy for volume diffusion of elements present in the cluster. The low number and density of clusters provides constraints on the time over which clusters formed, indicating that peak metamorphic temperatures are short-lived
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- 2020
36. Phase equilibria modelling constraints on P-T conditions during fluid catalysed conversion of granulite to eclogite in the Bergen Arcs, Norway
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Laura J. Morrissey, Kamini Bhowany, Steven M. Reddy, Mark A. Pearce, David E. Kelsey, Martin Hand, Chris D. Clark, Naomi M. Tucker, Bhowany, K, Hand, M, Clark, C, Kelsey, DE, Reddy, SM, Pearce, MA, Tucker, NM, and Morrissey, LJ
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010504 meteorology & atmospheric sciences ,Subduction ,P-T conditions ,Metamorphic rock ,Geochemistry ,Metamorphism ,Geology ,Orogeny ,010502 geochemistry & geophysics ,Granulite ,01 natural sciences ,Mantle (geology) ,Bergen Arcs ,Geochemistry and Petrology ,eclogite ,Shear zone ,Eclogite ,fluid infiltration ,Holsnøy ,0105 earth and related environmental sciences - Abstract
Exhumed eclogitic crust is rare and exposures that preserve both protoliths and altered domains are limited around the world. Nominally anhydrous Neoproterozoic anorthositic granulites exposed on the island of Holsnoy, in the Bergen Arcs in western Norway, preserve different stages of progressive prograde deformation, together with the corresponding fluid-assisted metamorphism, which record the conversion to eclogite during the Ordovician-Silurian Caledonian Orogeny. Four stages of deformation can be identified: 1) brittle deformation resulting in the formation of fractures and the generation of pseudotachylites in the granulite; 2) development of mesoscale shear zones associated with increased fluid–rock interaction; 3) the complete large-scale replacement of granulite by hydrous eclogite with blocks of granulite sitting in an eclogitic ‘matrix’; and 4) the break-up of completely eclogitised granulite by continued fluid influx, resulting in the formation of coarse-grained phengite-dominated mineral assemblages. P–T constraints derived from phase equilibria forward modelling of mineral assemblages of the early and later stages of the conversion to eclogite document burial and partial exhumation path with peak metamorphic conditions of ~ 21–22 kbar and 670–690 °C. The P–T models, in combination with existing T–t constraints, imply that the Lindas Nappe underwent extremely rapid retrogressive pressure change. Fluid infiltration began on the prograde burial path and continued throughout the recorded P–T evolution, implying a fluid source that underwent progressive dehydration during subduction of the granulites. However, in places limited fluid availability on the prograde path resulted in assemblages largely consuming the available fluid, essentially freezing in snapshots of the prograde evolution. These were carried metastably deeper into the mantle with strain and metamorphic recrystallization partitioned into areas where ongoing fluid infiltration was concentrated. This article is protected by copyright. All rights reserved.
- Published
- 2018
37. PASCS 2014: Privacy and Accountability for Software and Cloud Services
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Sellami, Mohamed, Royer, Jean-Claude, de Oliveira, Anderson Santana, IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT), Aspect and composition languages (ASCOLA), Laboratoire d'Informatique de Nantes Atlantique (LINA), Centre National de la Recherche Scientifique (CNRS)-Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Département informatique - EMN, Mines Nantes (Mines Nantes)-Inria Rennes – Bretagne Atlantique, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria), SAP Labs France, Reddy, SM, IMT Atlantique (IMT Atlantique), and Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Département informatique - EMN
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[SPI]Engineering Sciences [physics] - Abstract
23rd IEEE International Conference on Enabling Technologies, Infrastructure for Collaborative Enterprises (WETICE), Parma, ITALY, JUN 23-25, 2014; International audience; no abstract
- Published
- 2014
38. Laws for Mediating Agents' Activities in Situated Multiagent Systems
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Holvoet, Weyns, and Reddy, SM
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Computer science ,business.industry ,Multi-agent system ,Situated ,Software engineering ,business ,Software architecture ,ComputingMethodologies_ARTIFICIALINTELLIGENCE - Abstract
Research on situated multiagent systems (situated MAS) investigates decentralized architectures for software systems that have to deal with highly dynamic operating conditions. To realize the system requirements, the agents of a situated MAS have to coordinate their behavior. The agent environment provides a means to mediate (i.e., enable and constrain) agents' activities in the system. Laws embedded in the agent environment allow to define application specific constrains on agents activities. In this paper, we declaratively specify the semantics of laws for perception, action, and communication in situated MAS. We illustrate the laws with concrete examples in an automated transportation system that we have developed. Mediation of agents' activities via the agent environment improves separation of concerns in MAS and helps to manage complexity, especially in open and pervasive environments. ispartof: pages:86-91 ispartof: Interdisciplinary Aspects of Coordination Applied to Pervasive Environments: Models and Applications (CoMA '07) pages:86-91 ispartof: IEEE International Workshops on Enabling Technologies: Infrastructures for Collaborative Enterprises location:Paris date:18 Jun - 20 Jun 2007 status: published
- Published
- 2007
39. Psoriatic arthritis phenotype clusters and their association with treatment response: a real-world longitudinal cohort study from the psoriatic arthritis research consortium.
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Karmacharya P, Crofford LJ, Byrne DW, Stephens-Shields A, Husni ME, Scher JU, Craig E, Fitzsimmons R, Reddy SM, Magrey MN, Walsh JA, and Ogdie A
- Abstract
Objectives: To identify phenotype clusters and their trajectories in psoriatic arthritis (PsA) and examine the association of the clusters with treatment response in a real-world setting., Methods: In the multicentre PsA Research Consortium (PARC) study, we applied factor analysis of mixed data to reduce dimensionality and collinearity, followed by hierarchical clustering on principal components. We then evaluated the transition of PsA clusters and their response to new immunomodulatory therapy and tumour necrosis factor inhibitor (TNFi)., Results: Among 627 patients with PsA, three clusters were identified: mild PsA and psoriasis only (PsO) (Cluster 1, 47.4%), severe PsA and mild PsO (Cluster 2, 34.3%) and severe PsA and severe PsO (Cluster 3, 18.3%). Among 339 patients starting or changing, significant differences in response were observed (mean follow-up of 0.7 years, SD 0.8), with Cluster 3 showing the largest improvements in cDAPSA and PsAID. No differences were found among those starting TNFi (n=218). cDAPSA remission and PsAID patient acceptable symptom state were achieved in 10% and 54%, respectively. Clusters remained stable over time despite treatment changes, though some transitions occurred, notably from Cluster 3 to milder clusters., Conclusion: Data-driven clusters with distinct therapy responses identified in this real-world study highlight the extensive heterogeneity in PsA and the central role of psoriasis and musculoskeletal severity in treatment outcomes. Concurrently, these findings underscore the need for better outcome measures, particularly for individuals with lower disease activity., (© Author(s) (or their employer(s)) 2024. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ on behalf of EULAR.)
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- 2024
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40. Magnetic nanoparticle-facilitated rapid mass production of high affinity polymeric materials (nanoMIPs) for protein recognition and biosensing.
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Reddy SM, Stephen AN, Holden MA, Stockburn WJ, and Dennison SR
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- Animals, Polymers chemistry, Molecularly Imprinted Polymers chemistry, Muramidase chemistry, Cattle, Proteins chemistry, Magnetite Nanoparticles chemistry, Biosensing Techniques
- Abstract
Molecularly imprinted polymers (MIPs) have been investigated extensively for broad applications in diagnostics, imaging and therapeutics due to their antibody-like specificity, high stability, and low-cost and rapid production when compared with biological antibodies. Yet, their wide-scale adoption and commercial viability are limited due to low yields and relatively lengthy preparations of current methods. We report the novel application of protein-functionalised magnetic nanoparticles (MNPs) to enable the rapid mass production of nanoMIPs for protein recognition. An aldehyde-functionalised MNP (MNP@CHO) precursor was synthesised using a one-pot microwave method in less than 20 minutes, resulting in 330 mg yield for a 30 mL reaction volume. The MNP@CHO precursor (10 mg) was subsequently functionalised with 600 μg of a target template protein, giving MNP@protein. In the presence of an N -hydroxymethylacrylamide (NHMA) functional monomer and N , N '-methylene bisacrylamide as a crosslinker, the MNP@protein particles served as nucleants for the mass production of nanoMIPs in a 20-30 minute synthesis process. Subsequently, the nanoMIPs could be harvested with sonication and then retrieved using a magnet, leaving the MNP@protein particles to be recycled and re-used at least 5 times for further nanoMIP production cycles. In general, 10 mg of MNP@protein produced 10 mg of nanoMIP with a 20% decrease in the yield over the 5 synthesis cycles. For the bovine haemoglobin nanoMIP, the K
D was determined to be 3.47 × 10-11 M, a binding affinity rivalling values found for monoclonal antibodies. We also demonstrate that the methodology is generic by producing high-affinity nanoMIPs for other proteins including albumin, lysozyme and SARS-CoV-2 recombinant protein. We therefore present a facile route to produce nanoMIPs in large industrially relevant quantities (hundreds of mg) and at short timescales (within a day). Our method offers realistic opportunities for the industry to adopt such materials as an antibody replacement technology in diagnostics, biological extraction and therapeutics.- Published
- 2024
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41. Telomeric repeats in the commercial SB-1 vaccine facilitate viral integration and contribute to vaccine efficacy.
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You Y, Kheimar AM, Vychodil T, Kossak L, Sabsabi MA, Conradie AM, Reddy SM, Bertzbach LD, and Kaufer BB
- Abstract
Marek's disease virus (MDV) integrates its genome into the telomeres of host chromosomes and causes fatal lymphomas in chickens. This integration is facilitated by telomeric repeat sequences (TMRs) at the ends of the viral genome, and is crucial for MDV-induced lymphomagenesis. The SB-1 vaccine virus is commonly used in commercial bivalent vaccines against MDV and also contains TMRs at its ends. Here, we demonstrate that SB-1 efficiently integrates its genome into the chromosomes of latently infected T cells. Deletion of the TMRs from the SB-1 genome did not affect virus replication, but severely impaired virus integration and genome maintenance in latently infected T cells and in chickens. Strikingly, the reduced integration and maintenance of latent SB-1 significantly impaired vaccine protection. Taken together, our data revealed that the TMRs facilitate SB-1 integration and that integration and/or maintenance of the latent viral genome is critical for vaccine protection., (© 2024. The Author(s).)
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- 2024
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42. Clinical Validation of Digitally Acquired Clinical Data and Machine Learning Models for Remote Measurement of Psoriasis and Psoriatic Arthritis: A Proof-of-Concept Study.
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Webster DE, Haberman RH, Perez-Chada LM, Tummalacherla M, Tediarjo A, Yadav V, Neto EC, MacDuffie W, DePhillips M, Sieg E, Catron S, Grant C, Francis W, Nguyen M, Yussuff M, Castillo RL, Yan D, Neimann AL, Reddy SM, Ogdie A, Kolivras A, Kellen MR, Mangravite LM, Sieberts SK, Omberg L, Merola JF, and Scher JU
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- Humans, Female, Male, Adult, Middle Aged, Proof of Concept Study, Mobile Applications, Reproducibility of Results, Arthritis, Psoriatic diagnosis, Machine Learning, Psoriasis diagnosis, Smartphone
- Abstract
Objective: Psoriatic disease remains underdiagnosed and undertreated. We developed and validated a suite of novel, sensor-based smartphone assessments (Psorcast app) that can be self-administered to measure cutaneous and musculoskeletal signs and symptoms of psoriatic disease., Methods: Participants with psoriasis (PsO) or psoriatic arthritis (PsA) and healthy controls were recruited between June 5, 2019, and November 10, 2021, at 2 academic medical centers. Concordance and accuracy of digital measures and image-based machine learning models were compared to their analogous clinical measures from trained rheumatologists and dermatologists., Results: Of 104 study participants, 51 (49%) were female and 53 (51%) were male, with a mean age of 42.3 years (SD 12.6). Seventy-nine (76%) participants had PsA, 16 (15.4%) had PsO, and 9 (8.7%) were healthy controls. Digital patient assessment of percent body surface area (BSA) affected with PsO demonstrated very strong concordance (Lin concordance correlation coefficient [CCC] 0.94 [95% CI 0.91-0.96]) with physician-assessed BSA. The in-clinic and remote target plaque physician global assessments showed fair-to-moderate concordance (CCC
erythema 0.72 [0.59-0.85]; CCCinduration 0.72 [0.62-0.82]; CCCscaling 0.60 [0.48-0.72]). Machine learning models of hand photos taken by patients accurately identified clinically diagnosed nail PsO with an accuracy of 0.76. The Digital Jar Open assessment categorized physician-assessed upper extremity involvement, considering joint tenderness or enthesitis (AUROC 0.68 [0.47-0.85])., Conclusion: The Psorcast digital assessments achieved significant clinical validity, although they require further validation in larger cohorts before use in evidence-based medicine or clinical trial settings. The smartphone software and analysis pipelines from the Psorcast suite are open source and freely available., (Copyright © 2024 by the Journal of Rheumatology.)- Published
- 2024
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43. Vaccination recommendations for adults receiving biologics and oral therapies for psoriasis and psoriatic arthritis: Delphi consensus from the medical board of the National Psoriasis Foundation.
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Chat VS, Ellebrecht CT, Kingston P, Gondo G, Bell S, Cordoro KM, Desai SR, Duffin KC, Feldman SR, Garg A, Gelfand JM, Gladman D, Green LJ, Gudjonsson J, Han G, Hawkes JE, Kircik L, Koo J, Langley R, Lebwohl M, Michael Lewitt G, Liao W, Martin G, Orbai AM, Reddy SM, Richardson V, Ritchlin CT, Schwartzman S, Siegel EL, Van Voorhees AS, Wallace EB, Weinberg JM, Winthrop KL, Yamauchi P, and Armstrong AW
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- Humans, Administration, Oral, Vaccination standards, Adult, COVID-19 prevention & control, COVID-19 Vaccines administration & dosage, SARS-CoV-2, Methotrexate therapeutic use, Methotrexate administration & dosage, Dermatologic Agents administration & dosage, Dermatologic Agents therapeutic use, Psoriasis drug therapy, Arthritis, Psoriatic drug therapy, Delphi Technique, Biological Products therapeutic use, Biological Products administration & dosage, Consensus
- Abstract
Background: For psoriatic patients who need to receive nonlive or live vaccines, evidence-based recommendations are needed regarding whether to pause or continue systemic therapies for psoriasis and/or psoriatic arthritis., Objective: To evaluate literature regarding vaccine efficacy and safety and to generate consensus-based recommendations for adults receiving systemic therapies for psoriasis and/or psoriatic arthritis receiving nonlive or live vaccines., Methods: Using a modified Delphi process, 22 consensus statements were developed by the National Psoriasis Foundation Medical Board and COVID-19 Task Force, and infectious disease experts., Results: Key recommendations include continuing most oral and biologic therapies without modification for patients receiving nonlive vaccines; consider interruption of methotrexate for nonlive vaccines. For patients receiving live vaccines, discontinue most oral and biologic medications before and after administration of live vaccine. Specific recommendations include discontinuing most biologic therapies, except for abatacept, for 2-3 half-lives before live vaccine administration and deferring next dose 2-4 weeks after live vaccination., Limitations: Studies regarding infection rates after vaccination are lacking., Conclusion: Interruption of antipsoriatic oral and biologic therapies is generally not necessary for patients receiving nonlive vaccines. Temporary interruption of oral and biologic therapies before and after administration of live vaccines is recommended in most cases., Competing Interests: Conflicts of interest Dr Chat, Dr Ellebrecht, Ms. Kingston, and Dr Cordoro have no conflicts of interest to declare. Dr Bell is an employee of the National Psoriasis Foundation. Author Gondo is an employee of the National Psoriasis Foundation. Dr Desai has served as a research investigator, consultant, speaker, and/or advisor for AbbVie, Galderma, Foundation for Research & Education of Dermatology, Almirall, Dermavant, Ferndale Laboratories, Inc, Incyte Corporation, Gore Range Capital, AOBiome, LLC, Bristol Myers Squibb, Verrica Pharmaceuticals, UCB, Ortho Dermatologics, Scientis, EPI Health, Avita, Pfizer, Lilly, LEO, Incyte Corporation, L'Oreal USA, Inc, Beiersdorf, Inc, and Johnson and Johnson; is a board member of the National Psoriasis Foundation and Women's Derm Society; and is a stockholder for Gore Range Capital. Dr Duffin has been a consultant, advisor, or served as an investigator for AbbVie, AnaptysBio, Amgen, Bristol-Myers Squib, Celgene, CorEvitas/Corrona, Boehringer-Ingelheim, Janssen, Lilly, Novartis, Ortho Dermatologica, Pfizer, Regeneron, Sienna, Stiefel, and UCB. Dr Feldman has received research, speaking and/or consulting support from Eli Lilly and Company, GlaxoSmithKline/Stiefel, AbbVie, Janssen, Alovtech, vTv Therapeutics, Bristol-Myers Squibb, Samsung, Pfizer, Boehringer Ingelheim, Amgen Inc, Dermavant, Arcutis, Novartis, Novan, UCB, Helsinn, SunPharma, Almirall, Galderma, Leo Pharma, Mylan, Celgene, Valeant, Menlo, Merck & Co, Qurient Forte, Arena, Biocon, Accordant, Argenx, Sanofi, Regeneron, the National Biological Corporation, Caremark, Advance Medical, Suncare Research, Informa, UpToDate and the National Psoriasis Foundation; is the founder and majority owner of www.DrScore.com; is a founder and part owner of Causa Research; and has stock in Sensal Health. Dr Garg is an advisor for AbbVie, Aclaris Therapeutics, Anaptys Bio, Aristea Therapeutics, Boehringer Ingelheim, Bristol Myers Squibb, Incyte, InflaRx, Insmed, Janssen, Novartis, Pfizer, UCB, and Viela Biosciences; receives honoraria; and receives research grants from AbbVie, UCB and National Psoriasis Foundation. Dr Gelfand served as a consultant for Abbvie, BMS, Boehringer Ingelheim, Celldex (DSMB), FIDE (which is sponsored by multiple pharmaceutical companies) GSK, Happify, Lilly (DMC), Leo, Janssen Biologics, Neumentum, Novartis Corp, Pfizer, UCB (DSMB), Neuroderm (DSMB), Regeneron, Trevi, and Mindera Dx., receiving honoraria; receives research grants (to the Trustees of the University of Pennsylvania) from Boehringer Ingelheim, and Pfizer Inc; and received payment for continuing medical education work related to psoriasis that was supported indirectly pharmaceutical sponsors. Dr Gelfand is a co-patent holder of resiquimod for treatment of cutaneous T cell lymphoma. Dr Gelfand is a Deputy Editor for the Journal of Investigative Dermatology receiving honoraria from the Society for Investigative Dermatology, is Chief Medical Editor for Healio Psoriatic Disease (receiving honoraria) and is a member of the Board of Directors for the International Psoriasis Council, receiving no honoraria. Dr Gladman has served as a consultant for AbbVie, Amgen, BMS, Eli Lily, Galapagos, Gilead, Janssen, Novartis, Pfizer, and UCB; and has received grants from AbbVie, Amgen, Eli Lily, Janssen, Novartis, Pfizer, and UCB. Dr Green is a research investigator, speaker, and/or consultant for AbbVie, Amgen, Arcutis, BMS, Dermavant, Lilly, MC2, SunPharma, and UCB. Dr Gudjonsson has served as an advisor for Novartis, Janssen, Almirall, Eli Lilly, Sanofi, and Boehringer Ingelheim; and has received research support from Almirall, Eli Lilly, Prometheus, BMS, and Janssen. Dr Han has served as a research investigator, consultant, and/or speaker for AbbVie, Amgen, Boehringer Ingelheim, BMS, Dermavant, Janssen, Lilly, UCB, Novartis, Leo Pharma, Regeneron, Sanofi Genzyme, Ortho Dermatologics, Bond Avillion, Pellepharm, MC2, Athenex, Celgene, Sun Pharma, and Pfizer. Dr Hawkes is an advisor and/or consultant for AbbVie, Arcutis, Boehringer Ingelheim, Janssen, LearnSkin, LEO, Lilly, Novartis, Pfizer, Regeneron-Sanofi Genzyme, and UCB; is a board member of the National Psoriasis Foundation; and has stock ownership/equity of Regeneron Pharmaceuticals. Dr Kircik is a research investigator, speaker, advisor, and/or consultant for Abbott Laboratories, Allergan, Almirall, Amgen, Arcutis, Biogen-Idec, BMS, Boehringer-Ingleheim, Breckinridge Pharma, Celgene, Centocor, Inc, Cellceutix, Cipher, Combinatrix, Connetics Corporation, Coria, Dermavant, Dermira, Dow Pharmaceutical Sciences, Inc, Dr Reddy's Lab, Eli Lilly, Galderma, Genentech, Inc, GlaxoSmithKline, PLC, Idera, Leo, Maruho, Merck, Medicis Pharmaceutical Corp., Novartis AG, Promius, PharmaDerm, Pfizer, Serono, Stiefel Laboratories, Inc, Sun Pharma, Taro, UCB, Valeant Pharmaceuticals Intl, and XenoPort. Dr Koo is a speaker and/or advisor for AbbVie, Amgen, Lilly, UCB, Ortho Dermatologics, LEO, Sun Pharma, Janssen, and Epi Pharm. Dr Langley has been an investigator, served on the scientific advisory board, and/or has provided a lecture for AbbVie, Amgen, Boehringer Ingelheim, Celgene, Leo, Lilly, Merck, Novartis, Pfizer, and UCB. Dr Lebwohl is an employee of Mount Sinai; receives research funds from AbbVie, Amgen, Arcutis, Avotres, Boehringer Ingelheim, Cara Therapeutics, Dermavant Sciences, Eli Lilly, Incyte, Janssen Research & Development, LLC, Ortho Dermatologics, Regeneron, and UCB, Inc; and is a consultant for Aditum Bio, Almirall, AltruBio Inc, AnaptysBio, Arcutis, Inc, Arena Pharmaceuticals, Aristea Therapeutics, Arrive Technologies, Avotres Therapeutics, BiomX, Brickell Biotech, Boehringer-Ingelheim, Bristol Myers Squibb, Cara Therapeutics, Castle Biosciences, Corevitas, Dermavant Sciences, Dr Reddy's Laboratories, Evelo Biosciences, Evommune, Inc, Facilitatation of International Dermatology Education, Forte Biosciences, Foundation for Research and Education in Dermatology, Helsinn Therapeutics, Hexima Ltd., LEO Pharma, Meiji Seika Pharma, Mindera, Pfizer, Seanergy, and Verrica. Dr Lewitt has received speaking and/or consulting support from AbbVie, Lilly, Janssen, Ortho Dermatologics, UCB, Galderma, Pfizer; received honoraria; and served as an advisor for AbbVie, Janssen, and Dermavant. Dr Liao has received research/grant support from AbbVie, Amgen, Janssen, Leo, Novartis, Trex Bio, Pfizer, and Regeneron. Dr Martin has served as an advisor for Bristol Meyers Squibb, DUSA/SUN, AbbVie, Ortho/Bausch Health, Galderma, Pfizer, LEO, Janssen, Horizon, UCB, Trevi, Almirall, Dermavent, Incyte, and Lilly; has served as a consultant for Bristol Meyers Squibb, DUSA/SUN, AbbVie, Ortho/Bausch Health, Galderma, Pfizer, LEO, UCB, Trevi, Almirall, Lilly, Arcutis, and Dermavant; and has received speaking support from UCB, Almirall, LEO, Incyte, Dermavant, and Bristol Meyers Squibb. Dr Orbai is a consultant and/or advisor for Janssen, Novartis, and UCB; and receives research support from AbbVie, Amgen, and Celgene. Dr Reddy has served as a consultant for Novartis, AbbVie, Janssen, and UCB; and has received grant support from Pfizer. Ms Richardson has served as an advisor for and received honoraria from Boehringer Engelheim and Lilly. Dr Ritchlin is a consultant and/or speaker for Novartis, Lilly, AbbVie, Janssen, UCB, and Pfizer. Dr Schwartzman has received speaking support from AbbVie, Janssen, Lilly, Pfizer, Novartis, and UCB; served as a consultant for Abbvie, Janssen, Lilly, Myriad, Novartis, Regeneron, Sanofi, UCB, Stelexis, Jubilant, and Teijin; is a board member of the National Psoriasis Foundation; and served as an advisor for Myriad. Dr Siegel has served as an advisor, speaker, and/or consultant for Abbvie, UCB, Lilly, Horizon, and BMS. Dr Van Voorhees has served as a research investigator and/or scientific advisor for Lilly, AbbVie, UCB, Bristol Meyers Squibb, Amgen, Boehringer Ingelheim, Novartis, and Merck. Dr Wallace serves as an investigator for Pfizer and Target RWE. Dr Weinberg is a research investigator, consultant, and/or speaker for Novartis, Lilly, Amgen, AbbVie, Sun, Janssen, and BMS. Dr Winthrop is a consultant for Pfizer, AbbVie, Union Chimique Belge (UCB), Eli Lilly & Company, Galapagos, GlaxoSmithKline (GSK), Roche, Gilead, Bristol Myers Squibb (BMS), Regeneron, Sanofi, AstraZeneca, and Novartis; and receives research funding from BMS and Pfizer. Dr Yamauchi serves as a research investigator, consultant, and speaker for Abbvie, Amgen, BMS, Janssen, Lilly, Novartis, Pfizer, Sun Pharma, UCB. Dr Armstrong has served as a research investigator, scientific advisor, and/or speaker to AbbVie, Almirall, Arcutis, ASLAN, Beiersdorf, BI, BMS, EPI, Incyte, Leo, UCB, Janssen, Lilly, Mindera, Nimbus, Novartis, Ortho Dermatologics, Sun, Dermavant, Dermira, Sanofi, Regeneron, and Pfizer., (Copyright © 2024. Published by Elsevier Inc.)
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- 2024
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44. A comprehensive single-cell breast tumor atlas defines epithelial and immune heterogeneity and interactions predicting anti-PD-1 therapy response.
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Xu L, Saunders K, Huang SP, Knutsdottir H, Martinez-Algarin K, Terrazas I, Chen K, McArthur HM, Maués J, Hodgdon C, Reddy SM, Roussos Torres ET, Xu L, and Chan IS
- Subjects
- Humans, Female, Epithelial Cells immunology, Epithelial Cells pathology, Epithelial Cells metabolism, Epithelial Cells drug effects, Programmed Cell Death 1 Receptor antagonists & inhibitors, Programmed Cell Death 1 Receptor genetics, Programmed Cell Death 1 Receptor metabolism, Programmed Cell Death 1 Receptor immunology, Gene Expression Regulation, Neoplastic, T-Lymphocytes immunology, Genetic Heterogeneity, Breast Neoplasms drug therapy, Breast Neoplasms immunology, Breast Neoplasms pathology, Breast Neoplasms genetics, Tumor Microenvironment immunology, Single-Cell Analysis methods, Immune Checkpoint Inhibitors therapeutic use, Immune Checkpoint Inhibitors pharmacology, Killer Cells, Natural immunology
- Abstract
We present an integrated single-cell RNA sequencing atlas of the primary breast tumor microenvironment (TME) containing 236,363 cells from 119 biopsy samples across eight datasets. In this study, we leverage this resource for multiple analyses of immune and cancer epithelial cell heterogeneity. We define natural killer (NK) cell heterogeneity through six subsets in the breast TME. Because NK cell heterogeneity correlates with epithelial cell heterogeneity, we characterize epithelial cells at the level of single-gene expression, molecular subtype, and 10 categories reflecting intratumoral transcriptional heterogeneity. We develop InteractPrint, which considers how cancer epithelial cell heterogeneity influences cancer-immune interactions. We use T cell InteractPrint to predict response to immune checkpoint inhibition (ICI) in two breast cancer clinical trials testing neoadjuvant anti-PD-1 therapy. T cell InteractPrint was predictive of response in both trials versus PD-L1 (AUC = 0.82, 0.83 vs. 0.50, 0.72). This resource enables additional high-resolution investigations of the breast TME., Competing Interests: Declaration of interests I.S.C., L.X., and K.S. are co-inventors on a pending patent application for a method to determine a predominant immune signal in a breast tumor microenvironment., (Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.)
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- 2024
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45. Digital droplet PCR analysis of organoids generated from mouse mammary tumors demonstrates proof-of-concept capture of tumor heterogeneity.
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Lake KE, Colonnetta MM, Smith CA, Saunders K, Martinez-Algarin K, Mohta S, Pena J, McArthur HL, Reddy SM, Roussos Torres ET, Chen EH, and Chan IS
- Abstract
Breast cancer metastases exhibit many different genetic alterations, including copy number amplifications (CNA). CNA are genetic alterations that are increasingly becoming relevant to breast oncology clinical practice. Here we identify CNA in metastatic breast tumor samples using publicly available datasets and characterize their expression and function using a metastatic mouse model of breast cancer. Our findings demonstrate that our organoid generation can be implemented to study clinically relevant features that reflect the genetic heterogeneity of individual tumors., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2024 Lake, Colonnetta, Smith, Saunders, Martinez-Algarin, Mohta, Pena, McArthur, Reddy, Roussos Torres, Chen and Chan.)
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- 2024
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46. Genome Sequence Analysis of Calcifying Bacteria Bacillus paranthracis CT5 and Its Biomineralization Efficacy to Improve the Strength and Durability Properties of Civil Structures.
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Sharma B, Sharma S, Medicherla KM, and Reddy SM
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- Bacteria metabolism, Calcium Carbonate chemistry, Molecular Sequence Annotation, Water metabolism, Urease, Biomineralization, Carbonic Anhydrases genetics, Carbonic Anhydrases metabolism, Bacillus
- Abstract
Bacteria producing urea amidohydrolases (UA) and carbonic anhydrases (CA) are of great importance in civil engineering as these enzymes are responsible for microbially induced calcium carbonate precipitation (MICCP). In this investigation, genomic insights of Bacillus paranthracis CT5 and the expression of genes underlying in MICCP were studied. B. paranthracis produced a maximum level of UA (669.3 U/ml) and CA (125 U/ml) on 5th day of incubation and precipitated 197 mg/100 ml CaCO
3 after 7 days of incubation. After 28 days of curing, compressive strength of bacterial admixed and bacterial cured (B-B) specimens was 13.7% higher compared to water-mixed and water-cured (W-W) specimens. A significant decrease in water absorption was observed in bacterial-cured specimens compared to water-cured specimens after 28 days of curing. For genome analysis, reads were assembled de novo producing 5,402,771 bp assembly with N50 of 273,050 bp. RAST annotation detected six amidohydrolase and three carbonic anhydrase genes. Among 5700 coding sequences found in genome, COG gene annotation grouped 4360 genes into COG categories with highest number of genes to transcription (435 genes), amino acid transport and metabolism (362 genes) along with cell wall/membrane/envelope biogenesis and ion transport and metabolism. KEGG functional classification predicted 223 pathways consisting of 1,960 genes and the highest number of genes belongs to two-component system (101 genes) and ABC transporter pathways (98 genes) enabling bacteria to sense and respond to environmental signals and actively transport various minerals and organic molecules, which facilitate the active transport of molecules required for MICCP., (© 2024. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)- Published
- 2024
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47. Psychosocial Factors Significantly Contribute to Joint Pain Persistence in Psoriatic Arthritis.
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Haberman RH, Zhou YY, Catron S, Felipe A, Jano K, Reddy SM, and Scher JU
- Subjects
- Humans, Arthralgia, Arthritis, Psoriatic complications
- Published
- 2024
- Full Text
- View/download PDF
48. Racial and ethnic determinants of psoriatic arthritis phenotypes and disease activity.
- Author
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Haberman RH, Ahmed T, Um S, Zhou YY, Catron S, Jano K, Felipe A, Eichman S, Rice AL, Lydon E, Moussavi S, Neimann AL, Reddy SM, Adhikari S, and Scher JU
- Abstract
Objective: Individuals of racially and ethnically diverse backgrounds are underrepresented in psoriatic arthritis (PsA) research/clinical trials, despite evidence that their disease presentation, severity and course may be distinct. Here we aim to describe how race, ethnicity and other socioeconomic factors inform disease characteristics in PsA., Methods: 817 consecutive patients with PsA from a large, diverse metropolitan area, were enrolled in an observational, longitudinal registry. Demographics, medical history, medication use, and psoriatic disease phenotype and activity were all recorded and analyzed., Results: The population was 77.4% non-Hispanic White, 2.2% Black, 7.1% Asian, and 9.9% identified as other races or multiracial, and 11.8% identified as Hispanic. Hispanic and non-White individuals had higher tender joint counts (p= 0.033) with similar swollen joint counts (p= 0.308) and medication use (p= 0.171). They also had high rates of radiographic axial disease. Hispanic individuals were significantly more likely to have higher tender joint counts (p= 0.029), higher RAPID3 scores (p= 0.004), and moderate-severe psoriasis (p= 0.010) compared with non-Hispanic White individuals., Conclusion: In this diverse cohort, 22.6% of patients identified as underrepresented racial and/or ethnic groups, mostly Asian or Hispanic. Despite similar swollen joint counts and medication use, non-white individuals have higher tender joint counts compared with white individuals. Phenotypically, they also were more likely to have radiographic axial involvement. These findings may reflect differences in PsA presentation, experience and outcomes in individuals of various racial and ethnic groups, which need to be taken into consideration in clinical care and research design., (© The Author(s) 2024. Published by Oxford University Press on behalf of the British Society for Rheumatology. All rights reserved. For permissions, please email: journals.permissions@oup.com.)
- Published
- 2024
- Full Text
- View/download PDF
49. Use of the Bath Ankylosing Spondylitis Disease Activity Index in Patients With Psoriatic Arthritis With and Without Axial Disease.
- Author
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Reddy SM, Xue K, Husni ME, Scher JU, Stephens-Shields AJ, Goel N, Koplin J, Craig ET, Walsh JA, and Ogdie A
- Subjects
- Humans, Longitudinal Studies, Severity of Illness Index, Arthritis, Psoriatic diagnosis, Arthritis, Psoriatic drug therapy, Arthritis, Psoriatic complications, Spondylitis, Ankylosing diagnostic imaging, Spondylitis, Ankylosing drug therapy, Spondylarthritis complications
- Abstract
Objective: To evaluate whether the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) is a responsive instrument in psoriatic arthritis (PsA) and whether it differentiates between axial and peripheral disease activity in PsA., Methods: Individuals with PsA initiating therapy in a longitudinal cohort study based in the United States were included. Axial PsA (axPsA), most often also associated with peripheral disease, was defined as fulfillment of the Assessment of Spondyloarthritis international Society axial spondyloarthritis classification criteria or presence of axial disease imaging features. Baseline BASDAI, individual BASDAI items, patient global assessment, patient pain, and Routine Assessment of Patient Index Data 3, and score changes following therapy initiation were descriptively reported. Standardized response means (SRMs) were calculated as the mean change divided by the SD of the change., Results: The mean (SD) baseline BASDAI score at the time of therapy initiation was 5.0 (2.2) among those with axPsA (n = 40) and 4.8 (2.0) among those with peripheral-only disease (n = 79). There was no significant difference in patient-reported outcome scores between the groups. The mean change for BASDAI was similar among axial vs peripheral disease (-0.75 vs -0.83). SRMs were similar across axial vs peripheral disease for BASDAI (-0.37 vs -0.44) and the individual BASDAI items., Conclusion: BASDAI has reasonable responsiveness in PsA but does not differentiate between axPsA and peripheral PsA. (ClinicalTrials.gov: NCT03378336)., (Copyright © 2024 by the Journal of Rheumatology.)
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- 2024
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50. Efficacy of Biofeedback in Paediatric Urology Patients: A Single Centre Experience.
- Author
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Reddy SM, Gray H, Barry T, Bessell B, Shalaby M, Woodward M, and Awad K
- Subjects
- Child, Female, Humans, Biofeedback, Psychology, Male, Urinary Bladder Diseases, Urinary Bladder, Overactive, Urinary Incontinence, Urology
- Abstract
Aim of the Study: Biofeedback assisted pelvic floor muscle training is an underutilised nonpharmacological treatment in paediatric urology. We reviewed all patients who underwent a course of treatment at our centre to evaluate its efficacy., Methods: All patients who underwent a full cycle of biofeedback in the paediatric urology department from 2016 to 2023 were identified. Demographics and outcomes following treatment were accessed., Results: 42 patients (28 female) were identified who underwent 8 one-hour sessions on a weekly basis constituted a completed cycle of treatment. Patients were identified for treatment as per local lower urinary tract symptom guidelines and following discussion in a fortnightly urology MDT and including diagnoses of overactive bladder, dysfunctional voiding, and giggle incontinence. Outcomes were measured as successful 29% (continence, normal postvoid residuals, clean intermittent catherization discontinued), partially successful 19% (reduced wetting, abnormal post void residuals, ongoing CIC) and unsuccessful 52% (no change for patient). Age at time of treatment affected likelihood of success: <9 years, 0% success; ≥9 years, 57% [p < 0.05]. There was no significant difference in success for 9-11 years [60%] vs >11 years [56%]., Conclusions: Biofeedback has shown success with improvement in symptoms in 48% of patients (complete or partial), which increases to 57% success in ≥9 years group. We would advocate its use in these difficult to manage patients with LUTS., Competing Interests: Conflicts of interest The authors have no competing interesting to declare., (Copyright © 2023 Elsevier Inc. All rights reserved.)
- Published
- 2024
- Full Text
- View/download PDF
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