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Articles 5041 - 5070 of 5345

Full-Text Articles in Medical Specialties

Rare Case Of Coronary To Pulmonary Vein Fistula With Coronary Steal Phenomenon, E. A. Barsoum, F. B. Saiful, D. Asti, R. Morcus, G. Khoueiry, J. Lafferty, D. A. Mccord Jan 2014

Rare Case Of Coronary To Pulmonary Vein Fistula With Coronary Steal Phenomenon, E. A. Barsoum, F. B. Saiful, D. Asti, R. Morcus, G. Khoueiry, J. Lafferty, D. A. Mccord

Journal Articles

Coronary artery fistulas are abnormal connections between coronary artery territories and cardiac chambers or major vessels, most of them are congenital. Patients with coronary artery fistula can be asymptomatic or present with different symptoms like angina. Cardiac computed tomography (CT) is one of the best modalities for diagnosis. We present an elderly patient that presented with angina symptoms, non invasive stress test was positive for ischemic heart disease, coronary angiogram could not reveal any obstructive lesions, but an abnormal branch of the left descending coronary artery (LAD), cardiac CT showed fistula that connect left anterior descending coronary artery to left …

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Recognition Of Antigen-Specific B-Cell Receptors From Chronic Lymphocytic Leukemia Patients By Synthetic Antigen Surrogates, M. Sarkar, Y. Liu, J. Morimoto, H. Peng, C. Aquino, C. Rader, N. Chiorazzi, T. Kodadek Jan 2014

Recognition Of Antigen-Specific B-Cell Receptors From Chronic Lymphocytic Leukemia Patients By Synthetic Antigen Surrogates, M. Sarkar, Y. Liu, J. Morimoto, H. Peng, C. Aquino, C. Rader, N. Chiorazzi, T. Kodadek

Journal Articles

In patients with chronic lymphocytic leukemia (CLL), a single neoplastic antigen-specific B cell accumulates and overgrows other B cells, leading to immune deficiency. CLL is often treated with drugs that ablate all B cells, leading to further weakening of humoral immunity, and a more focused therapeutic strategy capable of targeting only the pathogenic B cells would represent a significant advance. One approach to this would be to develop synthetic surrogates of the CLL antigens allowing differentiation of the CLL cells and healthy B cells in a patient. Here, we describe nonpeptidic molecules capable of targeting antigen-specific B cell receptors with …

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The Role Of Skin Trauma In The Distribution Of Morphea Lesions: A Cross-Sectional Survey Of The Morphea In Adults And Children Cohort Iv, D. Grabell, C. Hsieh, R. Andrew, K. Martires, A. Kim, R. Vasquez, H. Jacobe Jan 2014

The Role Of Skin Trauma In The Distribution Of Morphea Lesions: A Cross-Sectional Survey Of The Morphea In Adults And Children Cohort Iv, D. Grabell, C. Hsieh, R. Andrew, K. Martires, A. Kim, R. Vasquez, H. Jacobe

Journal Articles

Background: Skin trauma may play a role in the development of morphea lesions. The association between trauma and the distribution of cutaneous lesions has never been examined to our knowledge. Objective: We sought to determine whether patients enrolled in the Morphea in Adults and Children (MAC) cohort exhibit skin lesions distributed in areas of prior (isotopic) or ongoing (isomorphic) trauma. Methods: This was a cross-sectional analysis of the MAC cohort. Results: Of 329 patients in the MAC cohort, 52 (16%) had trauma-associated lesions at the onset of disease. Patients with lesions in an isotopic distribution had greater clinical severity as …

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Splenic B-1a Cells Expressing Cd138 Spontaneously Secrete Large Amounts Of Immunoglobulin In Naive Mice, N. E. Holodick, T. Vizconde, T. L. Rothstein Jan 2014

Splenic B-1a Cells Expressing Cd138 Spontaneously Secrete Large Amounts Of Immunoglobulin In Naive Mice, N. E. Holodick, T. Vizconde, T. L. Rothstein

Journal Articles

B-1a cells constitutively secrete natural antibody that provides immediate protection against microbial pathogens and functions homeostatically to speed removal of apoptotic cell debris. Although B-1a cells are especially prominent in the peritoneal and pleural cavities, some B-1a cells reside in the spleen. A small subset of splenic B-1a cells in naive, unimmunized mice express CD138, a recognized plasma cell antigen, whereas the bulk of splenic B-1a cells are CD138 negative. Splenic B-1a cells in toto have been shown to generate much more antibody per cell than peritoneal B-1a cells; however, specific functional information regarding CD138(+) splenic B-1a cells has been …

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Structure And Function Of Renal Macrophages And Dendritic Cells From Lupus-Prone Mice, R. Sahu, R. Bethunaickan, S. Singh, A. Davidson Jan 2014

Structure And Function Of Renal Macrophages And Dendritic Cells From Lupus-Prone Mice, R. Sahu, R. Bethunaickan, S. Singh, A. Davidson

Journal Articles

Objective. To characterize renal macrophages and dendritic cells (DCs) in 2 murine models of lupus nephritis. Methods. We used a bead-based enrichment step followed by cell sorting to isolate populations of interest from young mice and nephritic mice. Cell morphology was examined by microscopy. Arginase and nitrite production was examined using biochemical assays. The antigen-presenting functions of the cells were determined using mixed lymphocyte reactions. Selected cytokine, chemokine, and Toll-like receptor (TLR) profiles were examined using real-time quantitative polymerase chain reaction. Results. We identified 2 populations of macrophages and 3 populations of DCs in both of our murine models of …

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User Centered Clinical Decision Support Tools: Adoption Across Clinician Training Level, L. J. Mccullagh, A. Sofianou, J. Kannry, D. M. Mann, T. G. Mcginn Jan 2014

User Centered Clinical Decision Support Tools: Adoption Across Clinician Training Level, L. J. Mccullagh, A. Sofianou, J. Kannry, D. M. Mann, T. G. Mcginn

Journal Articles

BACKGROUND: Dissemination and adoption of clinical decision support (CDS) tools is a major initiative of the Affordable Care Act's Meaningful Use program. Adoption of CDS tools is multipronged with personal, organizational, and clinical settings factoring into the successful utilization rates. Specifically, the diffusion of innovation theory implies that 'early adopters' are more inclined to use CDS tools and younger physicians tend to be ranked in this category. OBJECTIVE: This study examined the differences in adoption of CDS tools across providers' training level. PARTICIPANTS: From November 2010 to 2011, 168 residents and attendings from an academic medical institution were enrolled into …

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A 129-Kb Deletion On Chromosome 12 Confers Substantial Protection Against Rheumatoid Arthritis, Implicating The Gene Slc2a3, C. D. Veal, K. E. Reekie, J. C. Lorentzen, P. K. Gregersen, L. Padyukov, A. J. Brookes Jan 2014

A 129-Kb Deletion On Chromosome 12 Confers Substantial Protection Against Rheumatoid Arthritis, Implicating The Gene Slc2a3, C. D. Veal, K. E. Reekie, J. C. Lorentzen, P. K. Gregersen, L. Padyukov, A. J. Brookes

Journal Articles

We describe a copy-number variant (CNV) for which deletion alleles confer a protective affect against rheumatoid arthritis (RA). This CNV reflects net unit deletions and expansions to a normal two-unit tandem duplication located on human chr12p13.31, a region with conserved synteny to the rat RA susceptibility quantitative trait loci Oia2. Genotyping, using the paralogue ratio test and SNP intensity data, in Swedish samples (2,403 cases, 1,269 controls) showed that the frequency of deletion variants is significantly lower in cases (P=0.0012, OR=0.442 [95%CI 0.258-0.755]). Reduced frequencies of deletion variants were also seen in replication materials comprising 9,201 UK samples (1,846 cases, …

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Drivers Of Hospitalization For Patients With Atrial Fibrillation: Results From The Outcomes Registry For Better Informed Treatment Of Atrial Fibrillation (Orbit-Af), B. A. Steinberg, S. Kim, G. C. Fonarow, L. Thomas, J. Ansell, P. R. Kowey, K. W. Mahaffey, B. J. Gersh, E. Hylek, Informed Outcomes Registry Better, +6 Additional Authors Jan 2014

Drivers Of Hospitalization For Patients With Atrial Fibrillation: Results From The Outcomes Registry For Better Informed Treatment Of Atrial Fibrillation (Orbit-Af), B. A. Steinberg, S. Kim, G. C. Fonarow, L. Thomas, J. Ansell, P. R. Kowey, K. W. Mahaffey, B. J. Gersh, E. Hylek, Informed Outcomes Registry Better, +6 Additional Authors

Journal Articles

Background Atrial fibrillation (AF) is the most common cardiac dysrhythmia and contributes significantly to health care expenditures. We sought to assess the frequency and predictors of hospitalization in patients with AF. Methods The ORBIT-AF registry is a prospective, observational study of outpatients with AF enrolled from June 29, 2010, to August 9, 2011. The current analysis included 9,484 participants with 1-year follow-up. Multivariable, logistic regression was used to identify baseline characteristics that were associated with first cause-specific hospitalization. Results Overall, 31% of patients with AF studied (n = 2,963) had 1 or more hospitalizations per year and 10% (n = …

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D-Dimer As A Predictor Of Venous Thromboembolism In Acutely Ill, Hospitalized Patients: A Subanalysis Of The Randomized Controlled Magellan Trial, A. T. Cohen, T. E. Spiro, A. C. Spyropoulos, Y. H. Desanctis, M. Homering, H. R. Buller, L. Haskell, D. Hu, R. Hull, P. Burton, +4 Additional Authors Jan 2014

D-Dimer As A Predictor Of Venous Thromboembolism In Acutely Ill, Hospitalized Patients: A Subanalysis Of The Randomized Controlled Magellan Trial, A. T. Cohen, T. E. Spiro, A. C. Spyropoulos, Y. H. Desanctis, M. Homering, H. R. Buller, L. Haskell, D. Hu, R. Hull, P. Burton, +4 Additional Authors

Journal Articles

Background D-dimer concentrations have not been evaluated extensively as a predictor of increased venous thromboembolism (VTE) risk in acutely ill, hospitalized medical patients. Objectives To analyze the relationships between D-dimer concentration, VTE and bleeding in the MAGELLAN trial (NCT00571649). Patients/methods This was a multicenter, randomized, controlled trial. Patients aged >= 40years, hospitalized for acute medical illnesses with risk factors for VTE received subcutaneous enoxaparin 40mg once daily for 10 +/- 4days then placebo up to day 35, or oral rivaroxaban 10mg once daily for 35 +/- 4days. Patients (n=7581) were grouped by baseline D-dimer2xthe upper limit of normal. VTE and …

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Factors Associated With Damage Accrual In Patients With Systemic Lupus Erythematosus: Results From The Systemic Lupus International Collaborating Clinics (Slicc) Inception Cohort, I. N. Bruce, A. G. O'Keeffe, V. Farewell, J. G. Hanly, S. Manzi, L. Su, D. D. Gladman, S. C. Bae, C. Aranow, M. B. Urowitz, +30 Additional Authors Jan 2014

Factors Associated With Damage Accrual In Patients With Systemic Lupus Erythematosus: Results From The Systemic Lupus International Collaborating Clinics (Slicc) Inception Cohort, I. N. Bruce, A. G. O'Keeffe, V. Farewell, J. G. Hanly, S. Manzi, L. Su, D. D. Gladman, S. C. Bae, C. Aranow, M. B. Urowitz, +30 Additional Authors

Journal Articles

BACKGROUND AND AIMS: We studied damage accrual and factors determining development and progression of damage in an international cohort of systemic lupus erythematosus (SLE) patients. METHODS: The Systemic Lupus International Collaborating Clinics (SLICC) Inception Cohort recruited patients within 15 months of developing four or more 1997 American College of Rheumatology (ACR) criteria for SLE; the SLICC/ACR damage index (SDI) was measured annually. We assessed relative rates of transition using maximum likelihood estimation in a multistate model. The Kaplan-Meier method estimated the probabilities for time to first increase in SDI score and Cox regression analysis was used to assess mortality. RESULTS: …

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Immunochip Analysis Identifies Multiple Susceptibility Loci For Systemic Sclerosis, M. D. Mayes, L. Bossini-Castillo, O. Gorlova, J. E. Martin, X. D. Zhou, W. V. Chen, S. Assassi, P. K. Gregersen, A. T. Lee, J. Martin, +66 Additional Authors Jan 2014

Immunochip Analysis Identifies Multiple Susceptibility Loci For Systemic Sclerosis, M. D. Mayes, L. Bossini-Castillo, O. Gorlova, J. E. Martin, X. D. Zhou, W. V. Chen, S. Assassi, P. K. Gregersen, A. T. Lee, J. Martin, +66 Additional Authors

Journal Articles

In this study, 1,833 systemic sclerosis (SSc) cases and 3,466 controls were genotyped with the Immunochip array. Classical alleles, amino acid residues, and SNPs across the human leukocyte antigen (HLA) region were imputed and tested. These analyses resulted in a model composed of six polymorphic amino acid positions and seven SNPs that explained the observed significant associations in the region. In addition, a replication step comprising 4,017 SSc cases and 5,935 controls was carried out for several selected non-HLA variants, reaching a total of 5,850 cases and 9,401 controls of European ancestry. Following this strategy, we identified and validated three …

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Immunochip Identifies Novel, And Replicates Known, Genetic Risk Loci For Rheumatoid Arthritis In Black South Africans, N. Govind, A. Choudhury, B. Hodkinson, C. Ickinger, J. Frost, A. Lee, P. K. Gregersen, R. J. Reynolds, S. L. Bridges, M. Tikly, +2 Additional Authors Jan 2014

Immunochip Identifies Novel, And Replicates Known, Genetic Risk Loci For Rheumatoid Arthritis In Black South Africans, N. Govind, A. Choudhury, B. Hodkinson, C. Ickinger, J. Frost, A. Lee, P. K. Gregersen, R. J. Reynolds, S. L. Bridges, M. Tikly, +2 Additional Authors

Journal Articles

The aim of this study was to identify genetic variants associated with rheumatoid arthritis (RA) risk in black South Africans. Black South African RA patients (n = 263) were compared with healthy controls (n = 374). Genotyping was performed using the Immunochip, and four-digit high-resolution human leukocyte antigen (HLA) typing was performed by DNA sequencing of exon 2. Standard quality control measures were implemented on the data. The strongest associations were in the intergenic region between the HLA-DRB1 and HLA-DQA1 loci. After conditioning on HLA-DRB1 alleles, the effect in the rest of the extended major histocompatibility (MHC) diminished. Non-HLA single …

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Lack Of Concordance Between Empirical Scores And Physician Assessments Of Stroke And Bleeding Risk In Atrial Fibrillation Results From The Outcomes Registry For Better Informed Treatment Of Atrial Fibrillation (Orbit-Af) Registry, B. A. Steinberg, S. Kim, L. Thomas, G. C. Fonarow, E. Hylek, J. Ansell, A. S. Go, P. Chang, P. Kowey, E. D. Peterson, +4 Additional Authors Jan 2014

Lack Of Concordance Between Empirical Scores And Physician Assessments Of Stroke And Bleeding Risk In Atrial Fibrillation Results From The Outcomes Registry For Better Informed Treatment Of Atrial Fibrillation (Orbit-Af) Registry, B. A. Steinberg, S. Kim, L. Thomas, G. C. Fonarow, E. Hylek, J. Ansell, A. S. Go, P. Chang, P. Kowey, E. D. Peterson, +4 Additional Authors

Journal Articles

Background-Physicians treating patients with atrial fibrillation (AF) must weigh the benefits of anticoagulation in preventing stroke versus the risk of bleeding. Although empirical models have been developed to predict such risks, the degree to which these coincide with clinicians' estimates is unclear. Methods and Results-We examined 10 094 AF patients enrolled in the Outcomes Registry for Better Informed Treatment of AF (ORBIT-AF) registry between June 2010 and August 2011. Empirical stroke and bleeding risks were assessed by using the congestive heart failure, hypertension, age >= 75 years, diabetes mellitus, and previous stroke or transient ischemic attack (CHADS(2)) and Anticoagulation and …

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A Role For Noncoding Variation In Schizophrenia, P. Roussos, A. C. Mitchell, G. Voloudakis, J. F. Fullard, V. M. Pothula, J. Tsang, E. A. Stahl, A. Georgakopoulos, P. K. Gregersen, P. Sklar, +15 Additional Authors Jan 2014

A Role For Noncoding Variation In Schizophrenia, P. Roussos, A. C. Mitchell, G. Voloudakis, J. F. Fullard, V. M. Pothula, J. Tsang, E. A. Stahl, A. Georgakopoulos, P. K. Gregersen, P. Sklar, +15 Additional Authors

Journal Articles

A large portion of common variant loci associated with genetic risk for schizophrenia reside within noncoding sequence of unknown function. Here, we demonstrate promoter and enhancer enrichment in schizophrenia variants associated with expression quantitative trait loci (eQTL). The enrichment is greater when functional annotations derived from the human brain are used relative to peripheral tissues. Regulatory trait concordance analysis ranked genes within schizophrenia genome-wide significant loci for a potential functional role, based on colocalization of a risk SNP, eQTL, and regulatory element sequence. We identified potential physical interactions of noncontiguous proximal and distal regulatory elements. This was verified in prefrontal …

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Fine Mapping Major Histocompatibility Complex Associations In Psoriasis And Its Clinical Subtypes, Y. Okada, B. Han, L. C. Tsoi, P. E. Stuart, E. Ellinghaus, T. Tejasvi, V. Chandran, F. Pellett, P. K. Gregersen, S. Raychaudhuri, +12 Additional Authors Jan 2014

Fine Mapping Major Histocompatibility Complex Associations In Psoriasis And Its Clinical Subtypes, Y. Okada, B. Han, L. C. Tsoi, P. E. Stuart, E. Ellinghaus, T. Tejasvi, V. Chandran, F. Pellett, P. K. Gregersen, S. Raychaudhuri, +12 Additional Authors

Journal Articles

Psoriasis vulgaris (PsV) risk is strongly associated with variation within the major histocompatibility complex (MHC) region, but its genetic architecture has yet to be fully elucidated. Here, we conducted a large-scale fine-mapping study of PsV risk in the MHC region in 9,247 PsV-affected individuals and 13,589 controls of European descent by imputing class I and II human leukocyte antigen (HLA) genes from SNP genotype data. In addition, we imputed sequence variants for MICA, an MHC HLA-like gene that has been associated with PsV, to evaluate association at that locus as well. We observed that HLA-C*06:02 demonstrated the lowest p value …

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Fine Mapping Seronegative And Seropositive Rheumatoid Arthritis To Shared And Distinct Hla Alleles By Adjusting For The Effects Of Heterogeneity, B. Han, D. Diogo, S. Eyre, H. Kallberg, A. Zhernakova, J. Bowes, L. Padyukov, Y. Okada, P. K. Gregersen, S. Raychaudhuri, +8 Additional Authors Jan 2014

Fine Mapping Seronegative And Seropositive Rheumatoid Arthritis To Shared And Distinct Hla Alleles By Adjusting For The Effects Of Heterogeneity, B. Han, D. Diogo, S. Eyre, H. Kallberg, A. Zhernakova, J. Bowes, L. Padyukov, Y. Okada, P. K. Gregersen, S. Raychaudhuri, +8 Additional Authors

Journal Articles

Despite progress in defining human leukocyte antigen (HLA) alleles for anti-citrullinated-protein-autoantibody-positive (ACPA(+)) rheumatoid arthritis (RA), identifying HLA alleles for ACPA-negative (ACPA(-)) RA has been challenging because of clinical heterogeneity within clinical cohorts. We imputed 8,961 classical HLA alleles, amino acids, and SNPs from Immunochip data in a discovery set of 2,406 ACPA(-) RA case and 13,930 control individuals. We developed a statistical approach to identify and adjust for clinical heterogeneity within ACPA(-) RA and observed independent associations for serine and leucine at position 11 in HLA-DRbeta1 (p = 1.4 x 10(-13), odds ratio [OR] = 1.30) and for aspartate at …

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Genetics Of Rheumatoid Arthritis Contributes To Biology And Drug Discovery, Y. Okada, D. Wu, G. Trynka, T. Raj, C. Terao, K. Ikari, Y. Kochi, K. Ohmura, P. K. Gregersen, R. M. Plenge, +85 Additional Authors Jan 2014

Genetics Of Rheumatoid Arthritis Contributes To Biology And Drug Discovery, Y. Okada, D. Wu, G. Trynka, T. Raj, C. Terao, K. Ikari, Y. Kochi, K. Ohmura, P. K. Gregersen, R. M. Plenge, +85 Additional Authors

Journal Articles

A major challenge in human genetics is to devise a systematic strategy to integrate disease-associated variants with diverse genomic and biological data sets to provide insight into disease pathogenesis and guide drug discovery for complex traits such as rheumatoid arthritis (RA). Here we performed a genome-wide association study meta-analysis in a total of >100,000 subjects of European and Asian ancestries (29,880 RA cases and 73,758 controls), by evaluating approximately 10 million single-nucleotide polymorphisms. We discovered 42 novel RA risk loci at a genome-wide level of significance, bringing the total to 101 (refs 2 - 4). We devised an in silico …

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Genome-Wide Methylation Analyses In Glioblastoma Multiforme, R. K. Lai, Y. W. Chen, X. W. Guan, D. Nousome, C. Sharma, P. Canoll, J. Bruce, A. Lee, P. Gregersen, J. Barnholtz-Sloan, +8 Additional Authors Jan 2014

Genome-Wide Methylation Analyses In Glioblastoma Multiforme, R. K. Lai, Y. W. Chen, X. W. Guan, D. Nousome, C. Sharma, P. Canoll, J. Bruce, A. Lee, P. Gregersen, J. Barnholtz-Sloan, +8 Additional Authors

Journal Articles

Few studies had investigated genome-wide methylation in glioblastoma multiforme (GBM). Our goals were to study differential methylation across the genome in gene promoters using an array-based method, as well as repetitive elements using surrogate global methylation markers. The discovery sample set for this study consisted of 54 GBM from Columbia University and Case Western Reserve University, and 24 brain controls from the New York Brain Bank. We assembled a validation dataset using methylation data of 162 TCGA GBM and 140 brain controls from dbGAP. HumanMethylation27 Analysis Bead-Chips (Illumina) were used to interrogate 26,486 informative CpG sites in both the discovery …

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Integration Of Sequence Data From A Consanguineous Family With Genetic Data From An Outbred Population Identifies Plb1 As A Candidate Rheumatoid Arthritis Risk Gene, Y. Okada, D. Diogo, J. D. Greenberg, F. Mouassess, W. A. L. Achkar, R. S. Fulton, J. C. Denny, N. Gupta, P. K. Gregersen, R. M. Plenge, +38 Additional Authors Jan 2014

Integration Of Sequence Data From A Consanguineous Family With Genetic Data From An Outbred Population Identifies Plb1 As A Candidate Rheumatoid Arthritis Risk Gene, Y. Okada, D. Diogo, J. D. Greenberg, F. Mouassess, W. A. L. Achkar, R. S. Fulton, J. C. Denny, N. Gupta, P. K. Gregersen, R. M. Plenge, +38 Additional Authors

Journal Articles

Integrating genetic data from families with highly penetrant forms of disease together with genetic data from outbred populations represents a promising strategy to uncover the complete frequency spectrum of risk alleles for complex traits such as rheumatoid arthritis (RA). Here, we demonstrate that rare, low-frequency and common alleles at one gene locus, phospholipase B1 (PLB1), might contribute to risk of RA in a 4-generation consanguineous pedigree (Middle Eastern ancestry) and also in unrelated individuals from the general population (European ancestry). Through identity-by-descent (IBD) mapping and whole-exome sequencing, we identified a non-synonymous c.2263G. C (p.G755R) mutation at the PLB1 gene on …

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Interferon Alpha On Nzm2328.Lc1r27: Enhancing Autoimmunity And Immune Complex-Mediated Glomerulonephritis Without End Stage Renal Failure, C. Dai, H. Y. Wang, S. S. J. Sung, R. Sharma, C. Kannapell, W. Han, Q. Wang, A. Davidson, F. Gaskin, S. M. Fu Jan 2014

Interferon Alpha On Nzm2328.Lc1r27: Enhancing Autoimmunity And Immune Complex-Mediated Glomerulonephritis Without End Stage Renal Failure, C. Dai, H. Y. Wang, S. S. J. Sung, R. Sharma, C. Kannapell, W. Han, Q. Wang, A. Davidson, F. Gaskin, S. M. Fu

Journal Articles

Interferon alpha (IFN alpha) may play a significant role in systemic lupus erythematosus (SLE) pathogenesis. Recent literature suggests that IFN alpha does not correlate with disease activities and blockade of IFN alpha is not effective in treating SLE. This study aims to delineate further the role of IFN alpha in SLE. 12-week old NZM2328 and its congenic NZM2328.Lc1R27 (R27) female mice were challenged with adenovirus-IFN alpha (adeno-IFN alpha) or adenovirus-LacZ (adeno-LacZ). Only adeno-IFN alpha treated NZM2328 developed severe proteinuria and died of chronic glomerulonephritis (GN) and end stage renal disease. Adeno-IFN alpha treated R27 did develop immune complex-mediated GN but …

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Pathogenetic Role Of Glomerular Cxcl13 Expression In Lupus Nephritis, K. Worthmann, F. Gueler, S. Von Vietinghoff, A. Davalos-Militz, F. Wiehler, A. Davidson, T. Witte, H. Haller, M. Schiffer, L. Schiffer, +1 Additional Author Jan 2014

Pathogenetic Role Of Glomerular Cxcl13 Expression In Lupus Nephritis, K. Worthmann, F. Gueler, S. Von Vietinghoff, A. Davalos-Militz, F. Wiehler, A. Davidson, T. Witte, H. Haller, M. Schiffer, L. Schiffer, +1 Additional Author

Journal Articles

Podocytes maintain the structure and function of the glomerular filtration barrier. However, podocytes have recently been implicated in the innate immune response, and their function as non-haematopoietic antigen-presenting cells was highlighted. We have shown previously that excessive expression of the chemokine CXCL13 is a distinctive early event for nephritis in a murine model of systemic lupus erythematosus (SLE). Furthermore, we found that CXCL13 is elevated significantly in the serum of patients with SLE-nephritis. In this study, we were able to show for the first time that (i) CXCL13 is expressed locally in glomeruli in a model for SLE-nephritis in mice …

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Biomechanical Comparison Of Hybrid Versus Non Locking Screw Fixation For Midshaft Clavicle Fractures, Joseph T. Cox, J Christopher Gayton, Matthew P. Noyes, Gregory C. Gould, Ronald J. Markert, Michael J. Prayson Jan 2014

Biomechanical Comparison Of Hybrid Versus Non Locking Screw Fixation For Midshaft Clavicle Fractures, Joseph T. Cox, J Christopher Gayton, Matthew P. Noyes, Gregory C. Gould, Ronald J. Markert, Michael J. Prayson

Internal Medicine Faculty Publications

Objectives: Recent studies report nonunion rates of up to fifteen percent for nonoperative treatment of displaced, comminuted, or shortened midshaft clavicle fractures. Additionally, authors suggest operative treatment of these comminuted displaced midshaft clavicle fractures leads to a more satisfactory clinical outcome. Biomechanically, clavicle fracture plate fixation has been analyzed for locking versus non-locking screw use, but little evidence on hybrid screw use exists. We hypothesized that fixation of a comminuted midshaft clavicle fracture model with a pre-contoured hybrid screw-plate construct would increase stiffness and load-to-failure compared to a non-locking screw construct. Methods: Fourteen matched pairs of fresh frozen cadaveric clavicles …

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Nanotechnology And Its Implication In Medical Science, Syed Ahsan Ali, M. Tariq Jan 2014

Nanotechnology And Its Implication In Medical Science, Syed Ahsan Ali, M. Tariq

Department of Medicine

No abstract provided.

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High-Intensity Tasks With External Load In Military Applications: A Review, Eric K. O'Neal, Jared H. Hornsby, Kyle J. Kelleran Jan 2014

High-Intensity Tasks With External Load In Military Applications: A Review, Eric K. O'Neal, Jared H. Hornsby, Kyle J. Kelleran

Human Movement Studies & Special Education Faculty Publications

This article provides a synopsis of the limited investigations examining the impact of external load (EL) on performance of high-intensity tasks under load (HITL), EL training intervention effects on HITL performance, and injuries from EL training. Repetitive lifting tasks and initiation of locomotion, such as rapidly moving from a prone position to sprinting appear to be more hindered by EL than maximal sprinting velocity and may explain why training with EL does not improve obstacle course or prolonged (200-300 yard shuttle) drills. EL training appears to offer very little if any benefit for HITL in lesser trained populations. This contrast …

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Incidence And Risk Factors For Acute Myocardial Injury After Non-Cardiac Surgery At The Aga Khan University Hospital Nairobi, Salim Said Ahmed Jan 2014

Incidence And Risk Factors For Acute Myocardial Injury After Non-Cardiac Surgery At The Aga Khan University Hospital Nairobi, Salim Said Ahmed

Master of Medicine in Internal Medicine

Aim: To determine the incidence and risk factors for acute myocardial injury after non-cardiac surgery at Aga Khan University Hospital Nairobi. Design: Prospective cohort study Background: Myocardial injury is the most common major cardiovascular complication in patients undergoing non-cardiac surgery. Large numbers of intermediate-risk and high-risk cardiac patients will be undergoing surgery as the population grows older, and thus myocardial injury after non-cardiac surgery could be a rising problem. Patients and Setting: Adult participants undergoing intermediate and high risk non-cardiac surgery at the Aga Khan University Hospital Nairobi were evaluated for incidence and risk factors for myocardial injury after non-cardiac …

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Comparison Of Cardiometabolic Risk Profile Between Hiv Patients On Art And Those Who Are Art Naïve, Erick Kimani Njenga Jan 2014

Comparison Of Cardiometabolic Risk Profile Between Hiv Patients On Art And Those Who Are Art Naïve, Erick Kimani Njenga

Master of Medicine in Internal Medicine

Background: Metabolic syndrome comprises of a set of aggregated risk factors that include: hypertension, central obesity, impaired fasting glucose, hypertriglyceridemia and low HDL-C (1)The is a noted increase in the prevalence of the metabolic syndrome cardiovascular risk factors in the HIV population. Methods: The study is a cross-sectional survey that enrolled 157 HIV positive patients over a 4 month period that were either newly diagnosed (HIV ART naïve) or were on ART from both the inpatient and outpatient setting. Data of their anthropometric, cardiovascular risk factors and clinical characteristics were collected with the aid of a standardized questionnaire and serum …

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Prevalence And Clinical Characteristics Of Venous Thromboembolism At The Aga Khan University Hospital, Nairobi, Felix Mutuma Riunga Jan 2014

Prevalence And Clinical Characteristics Of Venous Thromboembolism At The Aga Khan University Hospital, Nairobi, Felix Mutuma Riunga

Master of Medicine in Internal Medicine

Aim: To determine the prevalence of venous thromboembolism in patients presenting to the Aga Khan University Hospital, Radiology Department for lower limb compression ultrasonography with doppler and CT pulmonary angiography. In those found to have venous thromboembolism, the distribution of risk factors as described by Wells, the pattern of clinical presentation, the pattern of initial therapy, the length of hospital stay, major bleeding episodes and in hospital mortality were described. Design: Prospective survey Background: Venous Thromboembolism is a major cause of morbidity and mortality worldwide and its occurrence locally, as well as its clinical characteristics needs to be described in …

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A Gut Gone To Pot: A Case Of Cannabinoid Hyperemesis Syndrome Due To K2, A Synthetic Cannabinoid., Anene Ukaigwe, Paras Karmacharya, Anthony A. Donato Jan 2014

A Gut Gone To Pot: A Case Of Cannabinoid Hyperemesis Syndrome Due To K2, A Synthetic Cannabinoid., Anene Ukaigwe, Paras Karmacharya, Anthony A. Donato

Reading Hospital Internal Medicine Residency

Cannabinoid Hyperemesis Syndrome (CHS) was first described in 2004. Due to its novelty, CHS is often unrecognized by clinicians leading to expensive workup of these patients with cyclical symptoms. It may take up to 9 years to diagnose CHS. CHS is characterized by cyclical nausea and vomiting, abdominal pain, and an unusual compulsion to take hot showers in the presence of chronic use of cannabinoids. Cannabicyclohexanol is a synthetic cannabinoid, popularly known as K2 spice. It is a popular marijuana alternative among teenagers and young adults since it is readily available as herbal incense. Unlike marijuana, many users know that …

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How Patients' Self-Disclosure About Sickle Cell Pain Episodes To Significant Others Relates To Living With Sickle Cell Disease, Valerian J. Derlega, Louis H. Janda, Jeannie Miranda, Ian A. Chen, B. Mitchell Goodman Iii, Wally Smith Jan 2014

How Patients' Self-Disclosure About Sickle Cell Pain Episodes To Significant Others Relates To Living With Sickle Cell Disease, Valerian J. Derlega, Louis H. Janda, Jeannie Miranda, Ian A. Chen, B. Mitchell Goodman Iii, Wally Smith

Psychology Faculty Publications

Objectives: This cross-sectional study examines to whom and how fully sickle cell disease (SCD) patients talk to others about sickle cell pain, how helpful it is to talk with others about these pain episodes, and the association between talking to others about sickle cell pain episodes and patients' psychological adjustment and coping strategies in managing the disease.

Methods: A convenience sample of 73 African American patients with SCD (30 men and 43 women), were recruited from two SCD clinics at the time of routine medical visits. Most participants had been diagnosed with hemoglobin SS, and they reported an average number …

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Mesenteric Vein Thrombosis In A Patient Heterozygous For Factor V Leiden And G20210a Prothrombin Genotypes., Paras Karmacharya, Madan Raj Aryal, Anthony A. Donato Nov 2013

Mesenteric Vein Thrombosis In A Patient Heterozygous For Factor V Leiden And G20210a Prothrombin Genotypes., Paras Karmacharya, Madan Raj Aryal, Anthony A. Donato

Reading Hospital Internal Medicine Residency

Mesenteric venous thrombosis (MVT) is a rare but life threatening form of bowel ischemia. It is implicated in 6%-9% of all cases of acute mesenteric ischemia. The proportion of patients with primary (or idiopathic) MVT varies from 0% to 49%, with a decrease in frequency secondary to more recent availability of newer investigations for hypercoagulability. The presence of factor V Leiden (FVL) and prothrombin G20210A mutations (PGM) have been well documented in these cases. However, there have been scarce case reports describing MVT in heterozygotes of both these mutations occurring simultaneously and its implications on long term management. Our case …

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