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Almaani S, Song H, Suthanthira M, Toy C, Fussner LA, Meara A, Nagaraja H, Cuthbertson D, Khalidi NA, Koening CL, Langford CA, McAlear CA, Moreland LW, Pagnoux C, Seo P, Specks U, Sreih AG, Warrington KJ, Monach PA, Merkel PA, Rovin B, Birmingham D. Urine and Plasma Complement Ba Levels During Disease Flares in Patients With Antineutrophil Cytoplasmic Autoantibody-Associated Vasculitis. Kidney Int Rep 2023; 8:2421-2427. [PMID: 38025219 PMCID: PMC10658281 DOI: 10.1016/j.ekir.2023.08.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 08/09/2023] [Accepted: 08/14/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction Although the alternative complement pathway has been implicated in the pathogenesis of antineutrophil cytoplasmic autoantibody (ANCA)-associated vasculitis (AAV), the specific nature of its involvement is unclear. This study measured levels of urine and plasma complement fragment Ba at multiple time points in a group of patients with AAV. Methods The complement fragment Ba was measured by enzyme-linked immunosorbent assay in serial urine and plasma samples from 21 patients with AAV who developed a renal flare, 19 who developed a nonrenal flare, and 20 in long-term remission. Urine Ba levels were corrected for urine creatinine concentration. Changes in Ba levels were modeled using mixed linear-effect models. A logistic regression model was fit to predict a renal flare using Ba levels at the time of flare versus the nonrenal flare and long-term remission groups. Results Data from 60 patients with AAV were used for this analysis; 53% were male, 93% were White, and 74% had antiproteinase3-ANCA. Urine Ba levels increased at renal flare (P < 0.001) but remained stable during a nonrenal flare or long-term remission. Plasma Ba levels were stable over time in all groups. Urine Ba levels predicted a renal flare with an area under the curve of 0.76 (P < 0.001), with a cutoff of 12.53 ng/mg urine creatinine yielding a sensitivity of 76.2% and a specificity of 68.4%. Conclusion Urine Ba levels, but not plasma Ba levels, are increased at the time of a renal flare in AAV, suggesting intrarenal complement activation and highlighting the potential use of this biomarker for surveillance of active renal vasculitis.
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Affiliation(s)
- Salem Almaani
- Department of Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Huijuan Song
- Department of Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Meshora Suthanthira
- Department of Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Christopher Toy
- Department of Soil and Crop Sciences, Colorado State University, Fort Collins, Colorado, USA
| | - Lynn A. Fussner
- Department of Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Alexa Meara
- Department of Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Haikady Nagaraja
- Department of Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - David Cuthbertson
- Health Informatics Institute, University of South Florida, Tampa, Florida, USA
| | - Nader A. Khalidi
- Division of Rheumatology, St. Joseph’s Healthcare Hamilton, McMaster University, Hamilton, ON, Canada
| | | | | | - Carol A. McAlear
- Division of Rheumatology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Larry W. Moreland
- Division of Rheumatology and Clinical Immunology, University of Colorado, Denver, Colorado, USA
| | - Christian Pagnoux
- Division of Rheumatology, Mount Sinai Hospital and University Health Network, University of Toronto, Toronto, ON, Canada
| | - Philip Seo
- Division of Rheumatology, Johns Hopkins Medicine, Baltimore, Maryland, USA
| | - Ulrich Specks
- Mayo Clinic College of Medicine, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - Antoine G. Sreih
- Division of Rheumatology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Kenneth J. Warrington
- Mayo Clinic College of Medicine, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - Paul A. Monach
- Veteran’s Affairs Boston Healthcare System, Boston, Massachusetts, USA
| | - Peter A. Merkel
- Division of Rheumatology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Brad Rovin
- Department of Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Daniel Birmingham
- Department of Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
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Goyal A, Crabtree CD, Harfi TT, Nagaraja H, Lee B, Rajpal S, Simonetti OP, Tong MS. CARDIAC MAGNETIC RESONANCE IMAGING AND ECHOCARDIOGRAPHY IN MORBIDLY OBESE PATIENTS: AN ASSESSMENT OF IMAGE QUALITY. J Am Coll Cardiol 2022. [DOI: 10.1016/s0735-1097(22)02338-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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3
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Scharre DW, Nagaraja H, Icenhour J, Rawson K, Truelove J, Knopp MV. Identifying mixed Lewy body and Alzheimer’s disease pathologies using functional neuroimaging. Alzheimers Dement 2021. [DOI: 10.1002/alz.055719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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4
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Meyer A, Nagaraja H, Boudoulas K. ASSOCIATION BETWEEN CORONARY ARTERY PROCEDURES IN THE CARDIAC CATHETERIZATION LABORATORY AND PROCEDURAL COMPLICATIONS AS RELATED TO COEXISTING CHRONIC KIDNEY DISEASE AND DIABETES MELLITUS. J Am Coll Cardiol 2021. [DOI: 10.1016/s0735-1097(21)02613-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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5
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Wallner A, Nagaraja H, Raman SV. PRESENTATION AND LONG TERM OUTCOMES OF IMMUNE CHECKPOINT INHIBITOR RELATED MYOCARDITIS. J Am Coll Cardiol 2020. [DOI: 10.1016/s0735-1097(20)31644-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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6
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Sweet L, Brasky TM, Cooper S, Doogan N, Hinton A, Klein EG, Nagaraja H, Quisenberry A, Xi W, Wewers ME. Quitting Behaviors Among Dual Cigarette and E-Cigarette Users and Cigarette Smokers Enrolled in the Tobacco User Adult Cohort. Nicotine Tob Res 2019; 21:278-284. [PMID: 30346585 DOI: 10.1093/ntr/nty222] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 10/16/2018] [Indexed: 01/21/2023]
Abstract
PURPOSE We examined quitting behaviors among a cohort of dual users (cigarettes and electronic cigarettes [e-cigarettes]) and exclusive cigarette smokers for: (1) cigarette smoking reduction, (2) quit attempts, (3) abstinence from cigarettes, and (4) abstinence from all tobacco products. METHODS Participants enrolled in the Tobacco User Adult Cohort and categorized as "daily" user of cigarettes and "daily" or "some days per week" use of e-cigarettes (ie, dual users; n = 88) or "daily" user of cigarettes only (ie, cigarette smokers; n = 617) served as the analytic sample. Participants were interviewed face to face every 6 months, through 18 months. Data on self-reported current product(s) used, cessation interest, quit attempts and abstinence from cigarettes, and all tobacco products were collected. RESULTS No difference in reduction of cigarette consumption over time was noted between groups. Rates of reporting an attempt to quit all tobacco products (≥ 24 hours of not using any tobacco in an attempt to quit) also did not differ by group. Compared to cigarette smokers, dual users were more likely to report abstinence from cigarettes at 6 months (OR = 2.54, p = .045) but not at 12 or 18 months. There was no significant difference in abstinence from all tobacco products by group at 6, 12, or 18 months. CONCLUSIONS Although dual use of e-cigarettes has been cited as a potential cessation tool for cigarette smokers, our findings indicated that this association was only observed in the short term. We also found no evidence of any association between dual use and eventual abstinence from all tobacco products. IMPLICATIONS Our study observed that, in the natural environment, dual users of cigarettes and e-cigarettes were more likely than cigarette smokers to quit cigarettes in the short term but no more likely to quit using cigarettes and all tobacco products over time.
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Affiliation(s)
- Laura Sweet
- Division of Health Behavior and Health Promotion, College of Public Health, Ohio State University, Columbus, OH
| | - Theodore M Brasky
- Division of Cancer Prevention and Control, Department of Internal Medicine, College of Medicine, Ohio State University, Columbus, OH.,Center of Excellence in Regulatory Tobacco Science, Ohio State University Columbus, OH
| | - Sarah Cooper
- Division of Health Behavior and Health Promotion, College of Public Health, Ohio State University, Columbus, OH.,Center of Excellence in Regulatory Tobacco Science, Ohio State University Columbus, OH
| | - Nathan Doogan
- Division of Health Behavior and Health Promotion, College of Public Health, Ohio State University, Columbus, OH.,Center of Excellence in Regulatory Tobacco Science, Ohio State University Columbus, OH
| | - Alice Hinton
- Center of Excellence in Regulatory Tobacco Science, Ohio State University Columbus, OH.,Division of Biostatistics, College of Public Health, Ohio State University, Columbus, OH
| | - Elizabeth G Klein
- Division of Health Behavior and Health Promotion, College of Public Health, Ohio State University, Columbus, OH.,Center of Excellence in Regulatory Tobacco Science, Ohio State University Columbus, OH
| | - Haikady Nagaraja
- Center of Excellence in Regulatory Tobacco Science, Ohio State University Columbus, OH.,Division of Biostatistics, College of Public Health, Ohio State University, Columbus, OH
| | - Amanda Quisenberry
- Division of Health Behavior and Health Promotion, College of Public Health, Ohio State University, Columbus, OH.,Center of Excellence in Regulatory Tobacco Science, Ohio State University Columbus, OH
| | - Wenna Xi
- Center of Excellence in Regulatory Tobacco Science, Ohio State University Columbus, OH.,Division of Biostatistics, College of Public Health, Ohio State University, Columbus, OH
| | - Mary Ellen Wewers
- Division of Health Behavior and Health Promotion, College of Public Health, Ohio State University, Columbus, OH.,Center of Excellence in Regulatory Tobacco Science, Ohio State University Columbus, OH
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Klepek H, Nagaraja H, Goutman SA, Quick A, Kolb SJ, Roggenbuck J. Lack of consensus in ALS genetic testing practices and divergent views between ALS clinicians and patients. Amyotroph Lateral Scler Frontotemporal Degener 2019; 20:216-221. [PMID: 30931630 DOI: 10.1080/21678421.2019.1582670] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Recent advances in ALS gene discovery have both empowered and challenged clinicians providing evaluation and care for persons with ALS, many of whom seek an answer as to the cause of their condition. In order to study clinician practices and attitudes towards genetic testing, we surveyed members of the Northeast ALS Consortium, an international group of specialist ALS clinicians; responses were received from 80 of 255 (response rate = 31.4%). While 92.3% indicated they offered genetic testing to patients with familial ALS, 57.0% offered testing to patients with ALS and a family history of dementia, and 36.9% offered testing to patients with sporadic ALS, revealing a lack of consensus with respect to the approach to the typical ALS patient encountered in clinical practice. In addition, comparison of clinician and patient attitudes towards genetic testing revealed that clinicians valued the scientific potential of testing, but were less likely to say they would have testing themselves, or to see the value in testing for family members. People with ALS were more likely to see value of testing for themselves and for family members, and less likely to strongly value the scientific potential of testing.
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Affiliation(s)
- Holly Klepek
- a Division of Human Genetics , The Ohio State University Medical Center , Columbus , OH , USA
| | - Haikady Nagaraja
- b Division of Biostatistics , The Ohio State University , Columbus , OH , USA
| | - Stephen A Goutman
- c Department of Neurology , University of Michigan , Ann Arbor , MI , USA
| | - Adam Quick
- d Department of Neurology , The Ohio State University Wexner Medical Center , Columbus , OH , USA
| | - Stephen J Kolb
- d Department of Neurology , The Ohio State University Wexner Medical Center , Columbus , OH , USA.,e Department of Biological Chemistry & Pharmacy , The Ohio State University Wexner Medical Center , Columbus , OH , USA
| | - Jennifer Roggenbuck
- a Division of Human Genetics , The Ohio State University Medical Center , Columbus , OH , USA.,d Department of Neurology , The Ohio State University Wexner Medical Center , Columbus , OH , USA.,f Department of Neurology , The Ohio State University Medical Center , Columbus , OH , USA
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8
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Kopp BT, Hinton A, Lu R, Cooper S, Nagaraja H, Wewers ME. Impact of Presence of Children on Indoor Tobacco Restrictions in Households of Urban and Rural Adult Tobacco Users. Acad Pediatr 2018; 18:920-927. [PMID: 29653256 PMCID: PMC6179946 DOI: 10.1016/j.acap.2018.04.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Revised: 03/26/2018] [Accepted: 04/05/2018] [Indexed: 11/24/2022]
Abstract
OBJECTIVES Secondhand smoke exposure in children is changing as a result of new public policy and electronic nicotine products (e-cigarettes). We examined factors related to self-imposed indoor household tobacco restrictions, with emphasis on children in the household and associations with combustible and noncombustible product use. METHODS A cross-sectional survey of urban and rural Ohio adult tobacco users classified participants as exclusive combustible users, smokeless tobacco (SLT) users, e-cigarette users, or dual users. They were further stratified according to combustible or noncombustible product use and the presence of indoor tobacco use restrictions. Multiple logistic regression determined factors associated with indoor tobacco restrictions. RESULTS A total of 1210 tobacco users participated, including 25.7% with children living in the home. Half allowed combustible and two thirds allowed noncombustible tobacco use indoors. Urban location (odds ratio [OR] = 1.58), younger age (OR = 0.88 per 5 year), male sex (OR = 1.40), college education (OR = 1.40), household income of more than $15,000 (OR = 1.78), and being married (OR = 2.43) were associated with a higher likelihood of banning combustible products indoors. SLT (OR = 8.12) and e-cigarette (OR = 5.85) users were more likely to have indoor bans compared to combustible users. Children in the household (OR = 1.89), older age (OR = 1.12 per 5 years), and nonwhite race (OR = 1.68) were associated with a higher likelihood of banning noncombustible products indoors. Combustible (OR = 4.54) and e-cigarette (OR = 3.04) users were more likely than SLT users to have indoor bans. CONCLUSIONS Indoor restrictions on tobacco use remain infrequent in homes with children and are associated with user type and socioeconomic factors. Public policy should target modifiable risk factors for in-home secondhand smoke exposure.
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Affiliation(s)
- Benjamin T. Kopp
- Divison of Pulmonary Medicine, Nationwide Children’s Hospital, Columbus, OH,The Research Institute at Nationwide Children’s Hospital, Columbus, OH,Address correspondence to: Benjamin Kopp, Nationwide Children's Hospital, Division of Pulmonary Medicine, Columbus, OH 43205; tel. 614-722-4766; fax 614-722-4755;
| | - Alice Hinton
- The Ohio State University College of Public Health Division of Biostatistics
| | - Rong Lu
- The Ohio State University College of Public Health Division of Biostatistics
| | - Sarah Cooper
- The Ohio State University College of Public Health Division of Health Behavior & Health Promotion
| | - Haikady Nagaraja
- The Ohio State University College of Public Health Division of Biostatistics
| | - Mary Ellen Wewers
- The Ohio State University College of Public Health Division of Health Behavior & Health Promotion
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Chennappa G, Sreenivasa MY, Nagaraja H. Azotobacter salinestris: A Novel Pesticide-Degrading and Prominent Biocontrol PGPR Bacteria. Microorganisms for Sustainability 2018. [DOI: 10.1007/978-981-10-7146-1_2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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10
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Malvar A, Pirruccio P, Alberton V, Lococo B, Recalde C, Fazini B, Nagaraja H, Indrakanti D, Rovin BH. Histologic versus clinical remission in proliferative lupus nephritis. Nephrol Dial Transplant 2017; 32:1338-1344. [PMID: 26250434 PMCID: PMC5837387 DOI: 10.1093/ndt/gfv296] [Citation(s) in RCA: 126] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2015] [Accepted: 07/11/2015] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Treatment response in lupus nephritis (LN) is defined clinically, without consideration of renal histology. Few studies have systematically examined histologic responses to induction therapy. In LN patients who underwent protocol kidney biopsies after induction immunosuppression, we describe the renal histology of the second biopsy and correlate histologic activity and damage with short- and long-term kidney outcomes. METHODS Patients with suspected LN were biopsied for diagnosis (Biopsy 1), and those with proliferative LN were rebiopsied after induction (Biopsy 2). Histologic activity and damage at each biopsy were calculated as the National Institutes of Health activity and chronicity indices. Complete and partial renal responses after induction and after long-term follow-up were determined clinically. RESULTS One-third of patients who achieved a complete clinical response after induction had persistently high histologic activity, and 62% of patients who had complete histologic remission on rebiopsy were still clinically active. Chronic renal damage increased after induction even in complete clinical responders. Chronicity at Biopsy 2 associated with long-term kidney function and development of chronic kidney disease. CONCLUSIONS Early clinical and histologic outcomes are discordant in proliferative LN, and neither correlates with long-term renal outcome. The kidney accrues chronic damage rapidly and despite clinical response in LN. Preservation of kidney function may require therapeutic targeting of both chronic damage and inflammation during LN induction treatment.
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Affiliation(s)
- Ana Malvar
- Hospital Fernandez, Buenos Aires, Argentina
| | | | | | | | | | | | - Haikady Nagaraja
- College of Public Health, Ohio State University, Columbus, OH, USA
| | | | - Brad H. Rovin
- Ohio State University Wexner Medical Center, Columbus, OH, USA
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11
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Scharre DW, Chang S, Nagaraja H, Vrettos N, Kataki M. [P1–304]: DIGITALLY TRANSLATED SELF‐ADMINISTERED GEROCOGNITIVE EXAMINATION (ESAGE): RELATIONSHIP TO CLINICAL ASSESSMENTS. Alzheimers Dement 2017. [DOI: 10.1016/j.jalz.2017.06.320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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Boudoulas KD, Pederzolli A, Nagaraja H, Kahaly O, Magorien R, Mazzaferri E. Abstract 236: Coronary Artery Procedures in the Cardiac Catheterization Laboratory After Overnight Call: Are Patients at Higher Risk? Circ Cardiovasc Qual Outcomes 2017. [DOI: 10.1161/circoutcomes.10.suppl_3.236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
Overnight call can lead to sleep deprivation and fatigue. It was hypothesized that complications will increase when coronary artery procedures are performed the day after overnight call (i.e. post-call). The present study was undertaken to test this hypothesis.
Methods:
From June 2009 to May 2013, >20,000 patients underwent a cardiac procedure in a large referral catheterization laboratory of which 10,190 patients (12.7%, n=1,298 post-call) underwent only coronary arteriography with (37%) or without (83%) percutaneous coronary intervention (PCI) with no other cardiac procedure(s). Procedural complications related to post-call status were determined.
Results:
Mean age was 61±12 years (male 65%). Overall complications were 2.6%: 1.0% bleeding, 1.0% myocardial infarction (MI), 0.3% new dialysis, 0.3% heart failure, 0.1% cardiogenic shock, 0.2% vascular, 0.1% stroke and 0.01% cardiac tamponade (certain patients had >1 complication). Overall there was statistically greater procedural complications when performed post-call (3.5%) compared to no post-call (2.5%; p=0.04); however, when adjusting for significant baseline variables, there was no difference seen between groups. From multivariate analysis of 23 factors, the following contributed independently to complications: ST-elevation MI (odds ratio 4.2, confidence interval [CI] 2.3-7.1), femoral vs. radial access (odds ratio 2.4, CI 1.7-3.3), non-ST-elevation MI (odds ratio 2.1, confidence interval [CI] 1.6-2.7), PCI (odds ratio 2.1, CI 1.6-2.7), history of heart failure (odds ratio 1.6, CI 1.2-2.1), female (odds ratio 1.4, CI 1.1-1.8), and age (odds ratio 1.2, CI 1.1-1.3 per 10 years). Glomerular filtration rate <60 ml/min was associated with more complications compared to >60 ml/min (p=0.007).
Conclusion:
There were greater procedural complications when performed post-call compared to no post-call; however, when adjusting for significant baseline variables, there was no significant difference seen between groups. Taking into consideration factors that contributed to procedural complications most likely will improve patient outcomes.
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Birmingham DJ, Merchant M, Waikar SS, Nagaraja H, Klein JB, Rovin BH. Biomarkers of lupus nephritis histology and flare: deciphering the relevant amidst the noise. Nephrol Dial Transplant 2017; 32:i71-i79. [PMID: 28391335 PMCID: PMC5837441 DOI: 10.1093/ndt/gfw300] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 07/11/2016] [Indexed: 12/12/2022] Open
Abstract
Biomarker development in lupus nephritis (LN) has traditionally relied on comparing the characteristics of candidate markers to clinical findings in patients and controls from cross-sectional cohorts. In this work, two additional strategies for LN biomarker development that are gaining ground will be discussed. One approach compares analytes directly to kidney histology. The second strategy utilizes longitudinal measurements of biomarker levels at regular intervals as patients move from disease quiescence to disease flare. These approaches have begun to empower biomarkers as diagnostic and prognostic tools in LN and have revealed novel and sometimes unexpected roles for these biomarkers in the pathogenesis and prediction of LN disease activity.
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Affiliation(s)
- Daniel J Birmingham
- Division of Nephrology, Ohio State University Wexner Medical Center, 395 West 12th Avenue, Ground Floor, Columbus, OH 43210, USA
| | - Michael Merchant
- University of Louisville School of Medicine, Louisville, KY, USA
| | | | - Haikady Nagaraja
- Ohio State University College of Public Health, Columbus, OH, USA
| | - Jon B Klein
- University of Louisville School of Medicine, Louisville, KY, USA
| | - Brad H Rovin
- Division of Nephrology, Ohio State University Wexner Medical Center, 395 West 12th Avenue, Ground Floor, Columbus, OH 43210, USA
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Deepa N, Nagaraja H, Sreenivasa M. Prevalence of fumonisin producing Fusarium verticillioides associated with cereals grown in Karnataka (India). Food Science and Human Wellness 2016. [DOI: 10.1016/j.fshw.2016.07.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Scharre DW, Chang SI, Nagaraja H, Vrettos N, Kataki M. O5‐07‐06: Digital Self‐Administered Gerocognitive Examination (ESAGE). Alzheimers Dement 2016. [DOI: 10.1016/j.jalz.2016.06.746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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16
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Nagaraja H, Chennappa G, Poorna Chandra Rao K, Mahadev Prasad G, Sreenivasa MY. Diversity of toxic and phytopathogenic Fusarium species occurring on cereals grown in Karnataka state, India. 3 Biotech 2016; 6:57. [PMID: 28330127 PMCID: PMC4752948 DOI: 10.1007/s13205-016-0399-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Accepted: 11/21/2015] [Indexed: 11/28/2022] Open
Abstract
A total of 198 cereal samples (53 maize, 54 sorghum, 37 paddy and 54 wheat) were collected from 11 districts of Karnataka to understand the percent infection (PI), relative density (RD) and their frequency (Fr) caused by Fusarium spp. All samples were screened by agar plating method using MGA 2.5 agar media and incubated at 25 ± 2 °C for 3–5 days. The study revealed the association of 10 different Fusarium species known trichothecene producers such as Fusarium acuminatum, F. avenaceum, F. crookwellense, F. culmorum, F. equiseti, F. graminearum, F. nivale, F. poae, F. sambucinum and F. sporotrichioides along with non-trichothecene producers like F. anthophilum, F. oxysporaum, F. proliferatum, F. semitectum, F. solani, and F. verticillioides. All the ten isolated potential trichothecene producing Fusarium species were analyzed for their ability to produce trichothecenes by using thin layer chromatography method. The highest infection of Fusarium spp. in maize was by F. verticillioides with PI of (2.95 %), with RD of (15.16 %) and highest Fr was by F. graminearum (79.24 %) and the lowest was F. avenasium with PI of (0.13 %). For sorghum maximum PI was by F. verticillioides (3.02 %), with F. graminearum having highest RD (14.39 %) and with F. verticillioides highest Fr. (72.22 %). In paddy highest PI was by F. verticillioides (3.21 %) and the least was by F. avenaceum (0.09 %). Similarly in wheat the highest PI was by F. verticillioides (2.76 %) while lowest was by F. avenaceum (0.10 %). The highest Fr was with F. graminearum (79.62 %) while the lowest was by F. avenaceum (3.70 %) and the highest RD was by F. graminearum (22.04 %) and lowest was by F. solani (0.72 %). The manually identified Fusarium spp. were further confirmed by PCR-based detection using ITS1 and ITS4 primers followed by sequencing of the PCR amplicons. PCR studies confirmed that all the tested fungal isolates belongs to Fusarium spp. with the amplicon size of 600 bp. Sequencing and the blast data from NCBI data base confirmed the sequence similarity of 99 % to the genus Fusarium and accession numbers were obtained. Chemotyping studies showed that the isolated Fusarium species are known to produce different types of trichothecenes. The study revealed the diversity in phytopathogenic Fusarium spp. in major cereal crops growing in different agro-climatic regions of Karnataka, India.
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Affiliation(s)
- H Nagaraja
- Department of Studies in Microbiology, University of Mysore, Manasagangotri, Mysore, 570 006, Karnataka, India
| | - G Chennappa
- Department of Studies in Microbiology, University of Mysore, Manasagangotri, Mysore, 570 006, Karnataka, India
| | - K Poorna Chandra Rao
- Department of Studies in Microbiology, University of Mysore, Manasagangotri, Mysore, 570 006, Karnataka, India
| | - G Mahadev Prasad
- Department of Studies in Microbiology, University of Mysore, Manasagangotri, Mysore, 570 006, Karnataka, India
| | - M Y Sreenivasa
- Department of Studies in Microbiology, University of Mysore, Manasagangotri, Mysore, 570 006, Karnataka, India.
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Scharre DW, Chang SI, Nagaraja H, Kataki M, Wheeler N, Adeli A. P2‐203: Longitudinal changes in self‐administered gerocognitive examination (SAGE) and mini‐mental state exam (MMSE) scores for subjective cognitive impairment (SCI), mild cognitive impairment (MCI), dementia converters, and Alzheimer's disease (AD) patients. Alzheimers Dement 2015. [DOI: 10.1016/j.jalz.2015.06.743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Scharre DW, Chang SI, Nagaraja H, Vrettos N. P4‐246: Electronic self‐administered gerocognitive examination (ESAGE). Alzheimers Dement 2015. [DOI: 10.1016/j.jalz.2015.08.075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Boudoulas KD, Wolfe B, Ravi Y, Lilly S, Nagaraja H, Sai-Sudhakar C. THE AORTIC STENOSIS COMPLEX: AORTIC VALVE, ATHEROSCLEROSIS, AORTA. J Am Coll Cardiol 2015. [DOI: 10.1016/s0735-1097(15)61970-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Poornachandra Rao K, Chennappa G, Suraj U, Nagaraja H, Charith Raj AP, Sreenivasa MY. Probiotic Potential of Lactobacillus Strains Isolated from Sorghum-Based Traditional Fermented Food. Probiotics Antimicrob Proteins 2015; 7:146-56. [DOI: 10.1007/s12602-015-9186-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Scharre DW, Chang S, Nagaraja H, Park A, Agrawal P, Adeli A, Linder S, Kloos A, Kegelmeyer D, Fritz N, Kataki M, Kostyk S. P3‐134: MOTOR AND COGNITIVE PROFILES DIFFER BETWEEN LEWY BODY DEMENTIA AND PARKINSON'S DISEASE IN A PAIRED COMPARISON STUDY. Alzheimers Dement 2014. [DOI: 10.1016/j.jalz.2014.05.1223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
| | | | | | - Ariane Park
- Ohio State UniversityColumbusOhioUnited States
| | | | | | | | - Anne Kloos
- Ohio State UniversityColumbusOhioUnited States
| | | | - Nora Fritz
- Ohio State UniversityColumbusOhioUnited States
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Miller CK, Kristeller JL, Headings A, Nagaraja H. Comparison of a mindful eating intervention to a diabetes self-management intervention among adults with type 2 diabetes: a randomized controlled trial. Health Educ Behav 2013; 41:145-54. [PMID: 23855018 DOI: 10.1177/1090198113493092] [Citation(s) in RCA: 93] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Mindful eating may be an effective intervention for increasing awareness of hunger and satiety cues, improving eating regulation and dietary patterns, reducing symptoms of depression and anxiety, and promoting weight loss. Diabetes self-management education (DSME), which addresses knowledge, self-efficacy, and outcome expectations for improving food choices, also may be an effective intervention for diabetes self-care. Yet few studies have compared the impact of mindful eating to a DSME-based treatment approach on patient outcomes. Adults 35 to 65 years old with type 2 diabetes for ≥1 year not requiring insulin therapy were recruited from the community and randomly assigned to treatment group. The impact of a group-based 3-month mindful eating intervention (MB-EAT-D; n = 27) to a group-based 3-month DSME "Smart Choices" (SC) intervention (n = 25) postintervention and at 3-month follow-up was evaluated. Repeated-measures ANOVA with contrast analysis compared change in outcomes across time. There was no significant difference between groups in weight change. Significant improvement in depressive symptoms, outcome expectations, nutrition and eating-related self-efficacy, and cognitive control and disinhibition of control regarding eating behaviors occurred for both groups (all p < .0125) at 3-month follow-up. The SC group had greater increase in nutrition knowledge and self-efficacy than the MB-EAT-D group (all p < .05) at 3-month follow-up. MB-EAT-D had significant increase in mindfulness, whereas the SC group had significant increase in fruit and vegetable consumption at study end (all p < .0125). Both SC and MB-EAT-D were effective treatments for diabetes self-management. The availability of mindful eating and DSME-based approaches offers patients greater choices in meeting their self-care needs.
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Scharre D, Chang S, Nagaraja H, Merjanian M, Greenley G, Davis R. P3–265: Atypical antipsychotic efficacy and tolerability in dementia subjects living at a long‐term care facility: A retrospective study. Alzheimers Dement 2013. [DOI: 10.1016/j.jalz.2013.05.1339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Parikh S, Nagaraja H, Agarwal A, Samavedi S, Von Visger J, Nori U, Andreoni K, Pesavento T, Singh N. Impact of post-kidney transplant parathyroidectomy on allograft function. Clin Transplant 2013; 27:397-402. [PMID: 23448282 DOI: 10.1111/ctr.12099] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/20/2012] [Indexed: 12/11/2022]
Abstract
BACKGROUND The impact of parathyroidectomy on allograft function in kidney transplant patients is unclear. METHODS We conducted a retrospective, observational study of all kidney transplant recipients from 1988 to 2008 who underwent parathyroidectomy for uncontrolled hyperparathyroidism (n = 32). Post-parathyroidectomy, changes in estimated glomerular filtration rate (eGFR) and graft loss were recorded. Cross-sectional associations at baseline between eGFR and serum calcium, phosphate, and parathyroid hormone (PTH), and associations between their changes within subjects during the first two months post-parathyroidectomy were assessed. RESULTS Post-parathyroidectomy, the mean eGFR declined from 51.19 mL/min/1.73 m(2) at parathyroidectomy to 44.78 mL/min/1.73 m(2) at two months (p < 0.0001). Subsequently, graft function improved, and by 12 months, mean eGFR recovered to 49.76 mL/min/1.73 m(2) (p = 0.035). Decrease in serum PTH was accompanied by a decrease in eGFR (p = 0.0127) in the first two months post-parathyroidectomy. Patients whose eGFR declined by ≥20% (group 1) in the first two months post-parathyroidectomy were distinguished from the patients whose eGFR declined by <20% (group 2). The two groups were similar except that group 1 had a higher baseline mean serum PTH compared with group 2, although not significant (1046.7 ± 1034.2 vs. 476.6 ± 444.9, p = 0.14). In group 1, eGFR declined at an average rate of 32% (p < 0.0001) during the first month post-parathyroidectomy compared with 7% (p = 0.1399) in group 2, and the difference between these two groups was significant (p = 0.0003). The graft function recovered in both groups by one yr. During median follow-up of 66.00 ± 49.45 months, 6 (18%) patients lost their graft with a mean time to graft loss from parathyroidectomy of 37.2 ± 21.6 months. The causes of graft loss were rejection (n = 2), pyelonephritis (n = 1) and chronic allograft nephropathy (n = 3). No graft loss occurred during the first-year post-surgery. CONCLUSION Parathyroidectomy may lead to transient kidney allograft dysfunction with eventual recovery of graft function by 12 months post-parathyroidectomy. Higher level of serum PTH pre-parathyoidectomy is associated with a more profound decrease in eGFR post-parathyroidectomy.
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Affiliation(s)
- Samir Parikh
- Division of Nephrology, Department of Internal Medicine, The Wexner Medical Center, The Ohio State University, Columbus, OH, USA
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Abstract
Members of the genus Coleviroid (Coleus blumei viroid [CbVd]), family Pospiviroidae have been reported to infect Coleus (Solenostemon sp.). CbVd-1 was first reported from Brazil, CbVd-2, -3, and -4 were first reported from Germany, whereas CbVd-5 and -6 were recently identified in China (2). In India, Coleus is extensively cultivated as an ornamental plant in home gardens. In March to June 2012, Coleus leaf samples with irregular chlorotic spots/patches were collected from home gardens of two different districts of Karnataka (Kodagu and Mysore districts), India, suspecting the presence of Coleus blumei viroids (CbVd 1 to 6). Low molecular weight RNAs were extracted using 2% CTAB buffer containing 1.4 M NaCl, 20 mM EDTA, pH 8.0 and 100 mM Tris-Cl, pH 8.0 (1). Viroid-like RNA was enriched by fractionation 2M LiCl soluble nucleic acids (4). A DNA fragment with the expected size of CbVd-1 was detected in 10 (including both districts) of 14 analyzed (incident rate of 71%) from reverse transcription (RT)-PCR assay using Coleviroid specific primers (forward 5'-TGGATCCAGCGCTGCAACGGAATCCA-3' and reverse 5'-TTGGATCCGCCAGGGAACCCAGGTAAG-3'). RT was performed at 37°C for 60 min in 25 μl reaction mix containing 5 μl RNA extracts, 1 μl reverse primer, 1× first strand buffer, 10 mM dNTPs, and 200U M-MuLV-RT (Invitrogen, USA). For PCR, 2 μl RT was mixed in 25 μl PCR mix containing 0.2 μM each forward and reverse primers and 2U LA Taq (Takara-Bio, Japan) according to the manufacturer's instruction. PCR parameter was one cycle at 94°C for 2 min, 35 cycles at 94°C for 45 s, 53°C for 30 s, and 72°C for 60 s, followed by final extension at 72°C for 10 min (4). Sequence analysis of cloned amplicons detected CbVd-1 in India. To confirm the sequence of the primer regions, an additional set of tail-tail primers were designed, CbVd1-136F (5'-CTTCGTGGAACGGCTCCGCG-3') and CbVd1-136Rev (5'-GAAGAAGCCGAAGCAACTCTC-3') and were used for RT-PCR. Amplified products were cloned, sequenced and compared with previously obtained data. Further, the presences of CbVd-1 in Coleus samples was confirmed by a RNA gel blot assay using digoxigenin-labeled CbVd-1 cRNA probe (3). Alignment of 19 sequences obtained from four representative Coleus samples found the presence of two sequence variants of CbVd-1, namely Ind-1 (GenBank Accession No. AB740017) and Ind-2 (AB740018). Ind-1 was found to differ from Ind-2 by two nucleotide substitutions at position 40 (C to T) and 211 (T to C). BLAST analysis of Ind-1 showed 100% sequence similarity with CbVd-1 isolates from China (DQ178399) and South Korea (EU 410620), whereas Ind-2 was 99% identical to these two Chinese and Koreans isolates. Furthermore, 97% and 96% sequence identity with CbVd 1-RL RNA (Accession no. X95366) was observed for Ind-1 and Ind-2, respectively. Isolates from India were 88% similar with Coleus blumei viroid 1-RG (X95291). To the best of our knowledge, this is the first molecular evidence for the presence of CbVd-1 infecting Coleus in India. Coleus harbors various viroid species and CbVd-1, reported widely, can transmit efficiently through seed and also could infect the other herbaceous plants (3). This report from India will contribute further understanding of a potential risk of Coleus viroids in ornamental species. References: (1) J. J. Doyle and J. L. Doyle. Phytochem. Bull. 19:11, 1987. (2) F. H. Fu et al. Plant Dis. 95:494, 2011. (3) Ishiguro et al. Ann. Phytopathol. Soc. Jpn. 62:84, 1996. (4) S.-F. Li et al., Plant Pathol. 55:565, 2006.
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Affiliation(s)
- C R Adkar-Purushothama
- Faculty of Agriculture and Life Science, Hirosaki University, Bunkyo-cho 3, Hirosaki 036-8561, Japan
| | - H Nagaraja
- Department of Studies in Microbiology, University of Mysore, Manasagangothri, Mysore 570 006, India
| | - M Y Sreenivasa
- Department of Studies in Microbiology, University of Mysore, Manasagangothri, Mysore 570 006, India
| | - T Sano
- Faculty of Agriculture and Life Science, Hirosaki University, Bunkyo-cho 3, Hirosaki 036-8561, Japan
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Smith SA, Bai S, Nagaraja H, Abraham WT. Heart Failure With Preserved and Reduced Ejection Fraction in the Elderly: Functional Mitral Regurgitation is a Predictor of Adverse Outcomes. J Card Fail 2012. [DOI: 10.1016/j.cardfail.2012.06.070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Smith S, Bai S, Nagaraja H, Abraham W. FUNCTIONAL MITRAL VALVE REGURGITATION IN A HIGH RISK ELDERY COHORT AND THE ROLE OF OPTIMAL MEDICAL THERAPY. J Am Coll Cardiol 2012. [DOI: 10.1016/s0735-1097(12)61976-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Miller CK, Headings A, Peyrot M, Nagaraja H. Goal difficulty and goal commitment affect adoption of a lower glycemic index diet in adults with type 2 diabetes. Patient Educ Couns 2012; 86:84-90. [PMID: 21497479 PMCID: PMC3688050 DOI: 10.1016/j.pec.2011.03.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2010] [Revised: 03/09/2011] [Accepted: 03/15/2011] [Indexed: 05/30/2023]
Abstract
OBJECTIVE Few studies have examined the effect of goal difficulty on behavioral change even though goal setting is widely used in diabetes education. The effect of a goal to consume either 6 or 8 servings/day of low glycemic index (LGI) foods was evaluated in this study. METHODS Adults 40-65 years old with type 2 diabetes were randomly assigned to the 6 or 8 serving/day treatment group following a 5-week GI intervention. Perceived goal difficulty, commitment, satisfaction, and self-efficacy were evaluated, and four day food records assessed dietary intake. RESULTS Both groups increased consumption of LGI foods (P<0.001); there were no significant differences in the change in consumption between groups. Participants who were more committed to the goal perceived the goal to be less difficult (P<0.01). Those with greater efficacy beliefs were more committed to their goal, perceived the goal to be less difficult, and were more satisfied with their performance (all P<0.05). CONCLUSION A specific goal regarding LGI foods can facilitate the adoption of a lower GI diet. Future research is needed to determine if goal commitment or goal difficulty mediate the process. PRACTICE IMPLICATIONS Clinicians should help clients set specific goals regarding dietary change.
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Affiliation(s)
- Carla K Miller
- Ohio State University, Department of Human Nutrition, Columbus, OH 43210, USA.
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Wu Y, Lundstrom E, Liu CC, Yang Y, Gunnarsson I, Svenungsson E, Zhou B, Jones K, Nagaraja H, Higgins G, Spencer C, Brunner H, Birmingham D, Rovin B, Tsao B, Ahearn J, Hebert L, Padyukov L, Yu C. Low copy-number of complement C4A, the presence of HLA- DR3, and the presence of HLA- DR2 are independent and additive risk factors for human systemic lupus erythematosus (SLE) (93.13). The Journal of Immunology 2010. [DOI: 10.4049/jimmunol.184.supp.93.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
The major histocompatibility complex (MHC) in chromosome 6p21.3 has the strongest genetic association with human SLE. This study aims to dissect the roles of MHC genes HLA-DRB1 and complement C4 in SLE. The study population includes 744 SLE patients and 760 unrelated healthy controls of European ancestry. Genomic Southern blot analyses and qPCR were used to determine the gene copy-numbers of total C4, C4A and C4B. Two-digit genotypings for HLA-DRB1 were performed by SSP-PCRs. The copy-numbers for total C4, C4A and C4B vary from 2 to 6, 0 to 5, and 0 to 4, respectively. Lower C4A copy-number (p=2.4x10-13), and increased frequencies of HLA-DRB1*03 (DR3; p=1.5x10-10) and HLA-DRB1*15 (DR2; p=0.032) are associated with SLE. Zero, 1 and ≥2 copies of C4A strongly correlate with homozygous, heterozygous and non-DR3, respectively, in controls (r2=0.435,χ2=374.0; p=1.2x10-79) and in SLE (r2=0.381, χ2=463.9; p=4.2x10-99). Comparing to subjects with non-low C4A (i.e. ≥2 copies), non-DR3 and non-DR2, the odds for SLE with low C4A only (i.e. <2 copies) was 2.22 (95% CI: 1.11-4.43; p=0.031), DR3+ only was 1.81 (1.21-2.71; p=0.004), and DR2+ only was 1.65 (1.26-2.16; p=0.0002). Notably, the odds increased to 2.80 (2.09-3.76; p=3.6x10-12) among subjects with low C4A and DR3, and 2.71 (1.10-6.64; p=0.037) among subjects with low C4A and DR2. In conclusion, low C4A gene copy-numbers, the presence of HLA-DR3 or HLA-DR2 are each independent risk factors with additive effects for SLE.
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Affiliation(s)
- Yee Wu
- 1Molecular and Human Genetics, Research Institute at Nationwide Children's Hospital, Columbus, OH
- 2College of Medicine, The Ohio State University, Columbus, OH
| | - Emeli Lundstrom
- 3Karolinska Institutet, Karolinska Hospital, Stockholm, Sweden
| | - Chau-Ching Liu
- 4Lupus Center of Excellence, University of Pittsburgh School of the Health Sciences, Pittsburgh, PA
| | - Yan Yang
- 1Molecular and Human Genetics, Research Institute at Nationwide Children's Hospital, Columbus, OH
| | - Iva Gunnarsson
- 3Karolinska Institutet, Karolinska Hospital, Stockholm, Sweden
| | | | - Bi Zhou
- 1Molecular and Human Genetics, Research Institute at Nationwide Children's Hospital, Columbus, OH
| | - Karla Jones
- 1Molecular and Human Genetics, Research Institute at Nationwide Children's Hospital, Columbus, OH
| | | | - Gloria Higgins
- 1Molecular and Human Genetics, Research Institute at Nationwide Children's Hospital, Columbus, OH
- 2College of Medicine, The Ohio State University, Columbus, OH
| | - Charles Spencer
- 1Molecular and Human Genetics, Research Institute at Nationwide Children's Hospital, Columbus, OH
- 2College of Medicine, The Ohio State University, Columbus, OH
| | | | - Dan Birmingham
- 2College of Medicine, The Ohio State University, Columbus, OH
| | - Brad Rovin
- 2College of Medicine, The Ohio State University, Columbus, OH
| | - Betty Tsao
- 6Division of Rheumatology, University of California, Los Angeles, CA
| | | | - Lee Hebert
- 2College of Medicine, The Ohio State University, Columbus, OH
| | - Leonid Padyukov
- 3Karolinska Institutet, Karolinska Hospital, Stockholm, Sweden
| | - C. Yu
- 1Molecular and Human Genetics, Research Institute at Nationwide Children's Hospital, Columbus, OH
- 2College of Medicine, The Ohio State University, Columbus, OH
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Kumar P, Nagaraja H, Sreeelatha S, Sridharan M. P1.045 Impact of L-Carnitine and desferrioxamine on antioxidants and neurochemical hormones in 6-hydroxydopamine-induced neurotoxicity in the dopaminergic neurones of aged rats. Parkinsonism Relat Disord 2009. [DOI: 10.1016/s1353-8020(09)70167-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Zhang X, Jin M, Wu H, Nadasdy T, Nadasdy G, Harris N, Green-Church K, Nagaraja H, Birmingham DJ, Yu CY, Hebert LA, Rovin BH. Biomarkers of lupus nephritis determined by serial urine proteomics. Kidney Int 2008; 74:799-807. [PMID: 18596723 DOI: 10.1038/ki.2008.316] [Citation(s) in RCA: 109] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Lupus nephritis is a frequent and serious complication of systemic lupus erythematosus (SLE), the treatment of which often requires the use of immunosuppressives that can have severe side effects. Here we determined the low-molecular weight proteome of serial lupus urine samples to uncover novel and predictive biomarkers of SLE renal flare. Urine from 25 flare cycles of 19 patients with WHO Class III, IV, and V SLE nephritis were obtained at baseline, pre-flare, flare and post-flare. Each sample was first fractionated to remove proteins larger than 30 kDa, then applied onto weak cation exchanger protein chips for analysis by SELDI-TOF mass spectrometry. We found 176 protein ions of which 27 were differentially expressed between specific flare intervals. On-chip peptide sequencing by integrated tandem mass spectrometry positively identified the 20 and 25 amino-acid isoforms of hepcidin, as well as fragments of alpha1-antitrypsin and albumin among the selected differentially expressed protein ions. Hepcidin 20 increased 4 months before renal flare and returned to baseline at renal flare, whereas hepcidin 25 decreased at renal flare and returned to baseline 4 months after the flare. These studies provide a beginning proteomic analysis aimed at predicting impending renal relapse, relapse severity, and the potential for recovery after SLE nephritis flare.
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Affiliation(s)
- Xiaolan Zhang
- 1Department of Internal Medicine, Ohio State University, Columbus, Ohio, USA
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Rosario CM, Kadiev S, Nagaraja H, Diaz PT. EVALUATING THE SAFETY OF MIDAZOLAM FOR PROCEDURAL SEDATION IN HUMAN IMMUNODEFICIENCY VIRUS-SEROPOSITIVE PATIENTS ON PROTEASE INHIBITORS. Chest 2007. [DOI: 10.1378/chest.132.4_meetingabstracts.438] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Savelli S, Roubey R, Wu YL, Buxton G, Nagaraja H, Yang Y, Yu CY. Complement components C4 and C3 in human subjects with antiphospholipid antibodies: High C4B in antiphospholipid syndrome (APS) and low C4A in systemic lupus erythematosus (SLE). Mol Immunol 2007. [DOI: 10.1016/j.molimm.2006.07.209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
BACKGROUND Autoregulation of blood flow that maintains steady perfusion over the range of systemic blood pressure is compromised by stroke. OBJECTIVES To determine whether cerebral vasoregulation is impaired in stroke during orthostatic stress. METHODS Subjects included 30 control subjects, 30 with hypertension, and 20 with minor stroke and were studied using transcranial Doppler. Bilateral blood flow velocities (BFVs) from middle cerebral arteries, heart rate, blood pressure (BP), and CO2 were obtained during hyperventilation and CO2 rebreathing during supine rest and tilt at 80 degrees. Side-to-side BFV difference, vasomotor range (VMR), and cerebrovascular resistance (CVR) were calculated during normo-, hypo-, and hypercapnia. RESULTS Mean BFVs were similar between groups in supine position but differed during tilt. BFV diminished on the stroke side during tilt with hyperventilation and CO2 rebreathing (p < 0.0001). CVR increased (p < 0.0001) and VMR decreased (p < 0.01) on the stroke side. Vasoregulation was preserved on the normal side. BFV asymmetry differentiated patients with stroke from the other groups (p < 0.0001). BFV difference between the normal vs stroke side was the largest in stroke-normotensive (n = 7) compared with stroke-hypertensive (n = 13) patients and the two other groups (p < 0.0001). BFV asymmetry in stroke was associated with lower orthostatic BP (p < 0.0001). CONCLUSIONS Cerebral vasoregulation is impaired with minor stroke, and cerebral blood flow depends on blood pressure. Decline of blood flow velocities during orthostatic stress may pose a risk of silent hypoperfusion.
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Affiliation(s)
- V Novak
- Division of Gerontology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA.
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Malarkey WB, Wang J, Cheney C, Glaser R, Nagaraja H. Human lymphocyte growth hormone stimulates interferon gamma production and is inhibited by cortisol and norepinephrine. J Neuroimmunol 2002; 123:180-7. [PMID: 11880162 DOI: 10.1016/s0165-5728(01)00489-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Lymphocyte growth hormone (L-GH) is distributed throughout the human immune system; however, its biologic role has not been defined. In order to clarify this issue, we determined if Candida, commonly used as a recall antigen, and IL-12, an important monocyte cytokine that stimulates the TH1 cytokine pathway, could stimulate L-GH mRNA synthesis in cultured human peripheral blood mononuclear cells (PBMCs). Both Candida and IL-12 produced significant (p<0.01) stimulation of L-GH mRNA synthesis and the TH1 cytokine, gamma interferon (IFN-gamma). These effects on IFN-gamma production were significantly (p<0.001) inhibited by a GH antagonist, suggesting that L-GH was acting by an autocrine or paracrine mechanism to enhance IFN-gamma production in these serum-free cultured cells. Concentrations of norepinephrine and cortisol achievable in humans during stress were able to significantly (p<0.001) decrease L-GH synthesis in the PBMCs. They also diminished IFN-gamma significantly (p<0.001), but not the TH2 cytokine, IL-10, in the supernatants of the cultured PBMLs. These studies suggest that L-GH plays a role in cellular immune function mediated via the TH-1 pathway.
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Affiliation(s)
- William B Malarkey
- Department of Medicine, The Ohio State University, Columbus, OH 43210, USA.
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Abstract
STUDY OBJECTIVES Because sleep and wakefulness differ from each other by the amount of body movement, it has been claimed that the two states can be accurately distinguished by wrist actigraphy. Our objective was to test this claim in lengthy polysomnographic (psg) and actigraphic (acf) samples that included night and day components. DESIGN Fourteen healthy young (21-35 years) and old (70-72 years) men and women lived in a laboratory without temporal cues for 7 days. Each subject continuously wore sleep-recording electrodes as well as 2 wrist-movement recorders. Act measurements were converted to predictions of sleep and wakefulness by simple-threshold and multiple-regression methods. Psg served as the gold standard for calculation of predictive values (PV, the probability that an act prediction is correct by psg criteria). SETTING N/A. PARTICIPANTS N/A. INTERVENTIONS N/A. MEASUREMENTS AND RESULTS The 7-day act recordings showed clear circadian cycles of high and low activity that respectively corresponded to subjective days, when subjects were wakeful, and subjective nights when they slept. Lower act levels corresponded to deeper states of psg sleep. Logistic regression on a 20-minute moving average of act gave the highest overall PV's. Nevertheless, the mean PV for sleep (PVS) was only 62.2% in complete, day + night samples. PVS was 86.6% in night samples. Act successfully predicted wakefulness during subjective nights (PVW = 89.6) and accurately measured circadian period length and the extent of sleep-wake consolidation, but it overestimated sleep rate and sleep efficiency. Act systematically decreased before sleep onset and increased before awakening, but reliable transitions among joint psg/act states (the Markov-1 property) were not demonstrated. CONCLUSIONS Low PV's and overestimation of sleep currently disqualify actigraphy as an accurate sleep-wake indicator. Actigraphy may, however, by useful for measuring circadian period and sleep-wake consolidation and has face validity as a measure of rest/activity.
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Affiliation(s)
- C P Pollak
- Department of Neurology, The Ohio State University, Columbus, 43210, USA.
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Nagarkatti S, Nagaraja H. Experimental comparison of laboratory reared vs. wild-typeTrichogramma confusum [Hym.: Trichogrammatidae] I. Fertility, fecundity and longevity. ACTA ACUST UNITED AC 1978. [DOI: 10.1007/bf02371719] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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