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158 results on '"Kittner, S J"'

1. Heritability of young- and old-onset ischaemic stroke

Author

Bluher, A., Devan, W. J., Holliday, E. G., Nalls, M., Parolo, S., Bione, S., Giese, A.-K., Boncoraglio, G. B., Maguire, J. M., Müller-Nurasyid, M., Gieger, C., Meschia, J. F., Rosand, J., Rolfs, A., Kittner, S. J., Mitchell, B. D., OʼConnell, J. R., and Cheng, Y.-C.

Published
2015
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2. Detailed phenotyping of posterior vs. anterior circulation ischemic stroke: a multi-center MRI study

Author

Massachusetts Institute of Technology. Computer Science and Artificial Intelligence Laboratory, Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science, Frid, Petrea, Drake, Mattias, Giese, A. K., Wasselius, J., Schirmer, Markus, Donahue, K. L., Cloonan, L., Irie, R., Bouts, M. J. R. J., McIntosh, E. C., Mocking, S. J. T., Dalca, Adrian Vasile, Sridharan, Ramesh, Xu, H., Giralt-Steinhauer, E., Holmegaard, L., Jood, K., Roquer, J., Cole, J. W., McArdle, P. F., Broderick, J. P., Jimenez-Conde, J., Jern, C., Kissela, B. M., Kleindorfer, D. O., Lemmens, R., Meschia, J. F., Rundek, T., Sacco, R. L., Schmidt, R., Sharma, P., Slowik, A., Thijs, V., Woo, D., Worrall, B. B., Kittner, S. J., Mitchell, B. D., Petersson, J., Rosand, J., Golland, Polina, Wu, O., Rost, N. S., Lindgren, A., Massachusetts Institute of Technology. Computer Science and Artificial Intelligence Laboratory, Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science, Frid, Petrea, Drake, Mattias, Giese, A. K., Wasselius, J., Schirmer, Markus, Donahue, K. L., Cloonan, L., Irie, R., Bouts, M. J. R. J., McIntosh, E. C., Mocking, S. J. T., Dalca, Adrian Vasile, Sridharan, Ramesh, Xu, H., Giralt-Steinhauer, E., Holmegaard, L., Jood, K., Roquer, J., Cole, J. W., McArdle, P. F., Broderick, J. P., Jimenez-Conde, J., Jern, C., Kissela, B. M., Kleindorfer, D. O., Lemmens, R., Meschia, J. F., Rundek, T., Sacco, R. L., Schmidt, R., Sharma, P., Slowik, A., Thijs, V., Woo, D., Worrall, B. B., Kittner, S. J., Mitchell, B. D., Petersson, J., Rosand, J., Golland, Polina, Wu, O., Rost, N. S., and Lindgren, A.

Abstract

Objective Posterior circulation ischemic stroke (PCiS) constitutes 20–30% of ischemic stroke cases. Detailed information about differences between PCiS and anterior circulation ischemic stroke (ACiS) remains scarce. Such information might guide clinical decision making and prevention strategies. We studied risk factors and ischemic stroke subtypes in PCiS vs. ACiS and lesion location on magnetic resonance imaging (MRI) in PCiS. Methods Out of 3,301 MRIs from 12 sites in the National Institute of Neurological Disorders and Stroke (NINDS) Stroke Genetics Network (SiGN), we included 2,381 cases with acute DWI lesions. The definition of ACiS or PCiS was based on lesion location. We compared the groups using Chi-squared and logistic regression. Results PCiS occurred in 718 (30%) patients and ACiS in 1663 (70%). Diabetes and male sex were more common in PCiS vs. ACiS (diabetes 27% vs. 23%, p < 0.05; male sex 68% vs. 58%, p < 0.001). Both were independently associated with PCiS (diabetes, OR = 1.29; 95% CI 1.04–1.61; male sex, OR = 1.46; 95% CI 1.21–1.78). ACiS more commonly had large artery atherosclerosis (25% vs. 20%, p < 0.01) and cardioembolic mechanisms (17% vs. 11%, p < 0.001) compared to PCiS. Small artery occlusion was more common in PCiS vs. ACiS (20% vs. 14%, p < 0.001). Small artery occlusion accounted for 47% of solitary brainstem infarctions. Conclusion Ischemic stroke subtypes differ between the two phenotypes. Diabetes and male sex have a stronger association with PCiS than ACiS. Definitive MRI-based PCiS diagnosis aids etiological investigation and contributes additional insights into specific risk factors and mechanisms of injury in PCiS., National Institutes of Health NIBIB (Grant P41EB015902)

Published
2020

3. A genome-wide association study identifies new loci for factor VII and implicates factor VII in ischemic stroke etiology

Author

DE VRIES, P. S., SABATER-LLEAL, M., HUFFMAN, J. E., MARTEN, J., Song, C., PANKRATZ, N., BARTZ, T. M., DE HAAN, H. G., DELGADO, G. E., EICHER, J. D., MARTINEZ-PEREZ, A., WARD-CAVINESS, C. K., BRODY, J. A., CHEN, M. H., DE MAAT, M. P. M., Franberg, M., Gill, D., KLEBER, M. E., Rivadeneira, F., SORIA, J. M., Tang, W., TOFLER, G. H., UITTERLINDEN, A. G., van Hylckama Vlieg, A., SESHADRI, S., BOERWINKLE, E., DAVIES, N. M., GIESE, A. K., IKRAM, M. K., KITTNER, S. J., MCKNIGHT, B., PSATY, B. M., REINER, A. P., Sargurupremraj, Muralidharan, TAYLOR, K. D., CONSORTIUM, Invent, FORNAGE, M., HAMSTEN, A., MARZ, W., ROSENDAAL, F. R., SOUTO, J. C., DEHGHAN, A., JOHNSON, A. D., MORRISON, A. C., O'DONNELL, C. J., SMITH, N. L., Bordeaux population health (BPH), and Université de Bordeaux (UB)-Institut de Santé Publique, d'Épidémiologie et de Développement (ISPED)-Institut National de la Santé et de la Recherche Médicale (INSERM)

Subjects
VINTAGE, hemic and lymphatic diseases, [SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie, cardiovascular diseases
Abstract

Factor VII (FVII) is an important component of the coagulation cascade. Few genetic loci regulating FVII activity and/or levels have been discovered to date. We conducted a meta-analysis of nine genome-wide association studies of plasma FVII levels (seven FVII activity and two FVII antigen) among 27,495 participants of European and African ancestry. Each study performed ancestry-specific association analyses. Inverse variance weighted meta-analysis was performed within each ancestry group and then combined for a trans-ancestry meta-analysis. Our primary analysis included the seven studies that measured FVII activity, and a secondary analysis included all nine studies. We provided functional genomic validation for newly identified significant loci by silencing candidate genes in a human liver cell line (HuH7) using siRNA and then measuring F7 mRNA and FVII protein expression. Lastly, we used meta-analysis results to perform Mendelian randomization analysis to estimate the causal effect of FVII activity on coronary artery disease, ischemic stroke, and venous thromboembolism. We identified two novel (REEP3 and JAZF1-AS1) and six known loci associated with FVII activity, explaining 19.0% of the phenotypic variance. Adding FVII antigen data to the meta-analysis did not result in the discovery of further loci. Silencing REEP3 in HuH7 cells upregulated FVII, while silencing JAZF1 downregulated FVII. Mendelian randomization analyses suggest that FVII activity has a positive causal effect on the risk of ischemic stroke. Variants at REEP3 and JAZF1 contribute to FVII activity by regulating F7 expression levels. FVII activity appears to contribute to the etiology of ischemic stroke in the general population.

Published
2019

6. Why the United States Center for Medicare and Medicaid Services (CMS) should not extend reimbursement indications for carotid artery angioplasty/stenting

Author

Abbott, A. L., Adelman, M. A., Alexandrov, A. B., Barnett, H. J. M., Beard, J., Bell, P., Björck, M., Blacker, D., Buckley, C. J., Cambria, R. P., Comerota, A. J., Sander, E., Davies, A. H., Eckstein, H. H., Fraedrich, G., Gloviczki, P., Graeme Hankey, Harbaugh, R. E., Heldenberg, E., Kittner, S. J., Kleinig, T. J., Mikhailidis, D. P., Moore, W. S., Naylor, R., Nicolaides, A., Paraskevas, K. I., Pelz, D. M., Prichard, J. W., Purdie, G., Ricco, J. B., Riles, T., Rothwell, P., Sandercock, P., Sillesen, H., Spence, J. D., Spinelli, F., Tan, A., Thapar, A., Veith, F. J., and Zhou, W.

Subjects
Carotid Artery Diseases, Evidence-Based Medicine, Risk Factors, Health Policy, Patient Selection, Angioplasty, Insurance, Health, Reimbursement, Humans, Stents, Policy Making, Risk Assessment, Centers for Medicare and Medicaid Services, U.S, United States
Published
2012

7. Promoter Polymorphisms in the Nitric Oxide Synthase 3 Gene Are Associated With Ischemic Stroke Susceptibility in Young Black Women

Author

Meyers, D. A., Wozniak, M. A., Howard, T. D., Kittner, S. J., Basehore, M. J., Macko, R. F., Giles, W. H., Cole, J. W., Malarcher, A. M., Lange, L. A., and Xu, J.

Subjects
cardiovascular system, cardiovascular diseases
Abstract

Endothelial nitric oxide exerts a variety of protective effects on endothelial cells and blood vessels, and therefore the nitric oxide synthase 3 gene (NOS3) is a logical candidate gene for stroke susceptibility.

Published
2005
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11. Racial/ethnic disparities in mortality by stroke subtype in the United States, 1995-1998.

Author

Ayala, C, Ayala, C, Greenlund, K J, Croft, J B, Keenan, N L, Donehoo, R S, Giles, W H, Kittner, S J, Marks, J S, Ayala, C, Ayala, C, Greenlund, K J, Croft, J B, Keenan, N L, Donehoo, R S, Giles, W H, Kittner, S J, and Marks, J S

Abstract

Healthy People 2010 objectives for improving health include a goal to eliminate racial disparities in stroke mortality. Age-specific death rates by stroke subtype are not well documented among racial/ethnic minority populations in the United States. This report examines mortality rates by race/ethnicity for three stroke subtypes during 1995-1998. National Vital Statistics' death certificate data were used to calculate death rates for ischemic stroke (n = 507,256), intracerebral hemorrhage (n = 97,709), and subarachnoid hemorrhage (n = 27,334) among Hispanics, Blacks, American Indians/Alaska Natives, Asians/Pacific Islanders, and Whites by age and sex. Comparisons with Whites as the referent were made using age-standardized risk ratios and age-specific risk ratios. Age-standardized mortality rates for the three stroke subtypes were higher among Blacks than Whites. Death rates from intracerebral hemorrhage were also higher among Asians/Pacific Islanders than Whites. All minority populations had higher death rates from subarachnoid hemorrhage than did Whites. Among adults aged 25-44 years, Blacks and American Indians/Alaska Natives had higher risk ratios than did Whites for all three stroke subtypes. Increased public health attention is needed to reduce incidence and mortality for stroke, the third leading cause of death. Particular attention should be given to increasing awareness of stroke symptoms among young minority groups.

Published
2001

46. Cognitive impairment and mortality: a study of possible confounders.

Author

Liu, I Y, LaCroix, A Z, White, L R, Kittner, S J, and Wolf, P A

Abstract

Baseline neuropsychological function was assessed in 2,123 Framingham Heart Study participants and was related to mortality over an 8- to 10-year follow-up period. During that time, 573 persons died. Using Cox proportional hazards models, the authors showed poor cognitive function to be consistently associated with an increased risk of death. This association persisted after adjustment for the confounding effects of age, education, and illness. Subjects scoring below the 26th percentile of performance were at increased risk of mortality compared with high scorers (the relative risk was 1.3 for the 11th percentile-25th percentile and 1.7 for the 1st percentile-10th percentile).

Published
1990
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47. Alcohol and coronary heart disease in Puerto Rico.

Author

Kittner, S J, Garcia-Palmieri, M R, Costas, R, Cruz-Vidal, M, Abbott, R D, and Havlik, R J

Abstract

The relationship of alcohol consumption, measured in 1965-1968 by the 24-hour recall method, to incident coronary heart disease morbidity at eight years and mortality at 12 years of follow-up was investigated in a cohort of 9150 Puerto Rican males 35-79 years of age. After adjustment for age, cigarettes, exercise, urban/rural status, and income, there was clear evidence of a "U-shaped" relationship between alcohol and total mortality, and also the suggestion of a "J-shaped" relationship for angina pectoris, nonfatal myocardial infarction, and nonsudden coronary heart disease death. There was no association of alcohol with sudden cardiac death. The adjusted odds ratio for drinkers versus nondrinkers was 0.6 for angina pectoris (p less than 0.05), 0.7 for nonfatal myocardial infarction (p less than 0.1), and 0.7 for nonsudden coronary heart disease death (p less than 0.05). The inverse association of alcohol consumption to nonsudden coronary heart disease death was found to be dependent on age and income: the adjusted odds ratio for subjects under age 60 (0.4) or over the median income (0.3) strongly favored drinkers, while there was no evidence for a "protective effect" of alcohol consumption in the older and poorer segments of the population. It is concluded that available evidence does not justify the assertion that the inverse association between moderate alcohol intake and coronary heart disease risk is a causal one.

Published
1983
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48. Blood pressure and cognitive performance. The Framingham Study.

Author

Farmer, M E, White, L R, Abbott, R D, Kittner, S J, Kaplan, E, Wolz, M M, Brody, J A, and Wolf, P A

Abstract

In 1976-1978, a battery of eight neuropsychologic tests were administered to 2,123 participants in the Framingham Study who were aged 55-89 years. Performance on each test was examined in relation to concurrently measured systolic and diastolic blood pressure while controlling for age, sex, education, antihypertensive medication, alcohol consumption, and smoking. Those with a diagnosis of stroke were excluded from the analysis. In the remaining sample of 2,032, neither blood pressure nor antihypertensive treatment was significantly associated with cognitive performance. Even after excluding persons on antihypertensive medication, blood pressure was still unrelated to cognitive performance. In contrast to other studies, the authors found no consistent relation between blood pressure and cognitive performance.

Published
1987
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49. Publisher Correction: Multiancestry genome-wide association study of 520,000 subjects identifies 32 loci associated with stroke and stroke subtypes (Nature Genetics, (2018), 50, 4, (524-537), 10.1038/s41588-018-0058-3)

Author

Malik, R., Chauhan, G., Traylor, M., Sargurupremraj, M., Okada, Y., Mishra, A., Rutten-Jacobs, L., Giese, A. -K, Laan, S. W., Gretarsdottir, S., Anderson, C. D., Chong, M., Adams, H. H. H., Ago, T., Almgren, P., Amouyel, P., Ay, H., Bartz, T. M., Benavente, O. R., Bevan, S., Boncoraglio, G. B., Brown, R. D., Butterworth, A. S., Carrera, C., Carty, C. L., Chasman, D. I., Chen, W. -M, Cole, J. W., Correa, A., Cotlarciuc, I., Cruchaga, C., Danesh, J., Bakker, P. I. W., Destefano, A. L., Den Hoed, M., Duan, Q., Engelter, S. T., Falcone, G. J., Gottesman, R. F., Grewal, R. P., Gudnason, V., Gustafsson, S., Haessler, J., Harris, T. B., Hassan, A., Havulinna, A. S., Heckbert, S. R., Holliday, E. G., Howard, G., Hsu, F. -C, Hyacinth, H. I., Ikram, M. A., Ingelsson, E., Irvin, M. R., Jian, X., Jiménez-Conde, J., Johnson, J. A., Jukema, J. W., Kanai, M., Keene, K. L., Kissela, B. M., Kleindorfer, D. O., Kooperberg, C., Kubo, M., Lange, L. A., Langefeld, C. D., Langenberg, C., Launer, L. J., Lee, J. -M, Lemmens, R., Leys, D., Lewis, C. M., Lin, W. -Y, Lindgren, A. G., Lorentzen, E., Magnusson, P. K., Maguire, J., Manichaikul, A., Mcardle, P. F., Meschia, J. F., Mitchell, B. D., Mosley, T. H., Nalls, M. A., Ninomiya, T., O’donnell, M. J., Psaty, B. M., Pulit, S. L., Rannikmäe, K., Reiner, A. P., Rexrode, K. M., Rice, K., Rich, S. S., Ridker, P. M., Rost, N. S., Rothwell, P. M., Rotter, J. I., Rundek, T., Sacco, R. L., Sakaue, S., Sale, M. M., Salomaa, V., Sapkota, B. R., Schmidt, R., Schmidt, C. O., Schminke, U., Sharma, P., Slowik, A., Sudlow, C. L. M., Tanislav, C., Tatlisumak, T., Taylor, K. D., Thijs, V. N. S., Thorleifsson, G., Thorsteinsdottir, U., Tiedt, S., Trompet, S., Tzourio, C., Duijn, C. M., Walters, M., Wareham, N. J., Wassertheil-Smoller, S., Wilson, J. G., Wiggins, K. L., Yang, Q., Yusuf, S., Bis, J. C., Pastinen, T., Ruusalepp, A., Schadt, E. E., Koplev, S., Björkegren, J. L. M., Codoni, V., Civelek, M., Smith, N. L., Trégouët, D. A., Christophersen, I. E., Roselli, C., Lubitz, S. A., Ellinor, P. T., Tai, E. S., Kooner, J. S., Kato, N., He, J., Harst, P., Elliott, P., Chambers, J. C., Takeuchi, F., Johnson, A. D., Amin, N., Aparicio, H. S., Arnett, D. K., Attia, J., Beiser, A. S., Berr, C., Buring, J. E., Bustamante, M., Caso, V., Cheng, Y. -C, Choi, S. H., Chowhan, A., Cullell, N., Dartigues, J. -F, Delavaran, H., Delgado, P., Dörr, M., Engström, G., Ford, I., Gurpreet, W. S., Hamsten, A., Heitsch, L., Hozawa, A., Ibanez, L., Ilinca, A., Ingelsson, M., Iwasaki, M., Jackson, R. D., Jood, K., Jousilahti, P., Kaffashian, S., Kalra, L., Kamouchi, M., Kitazono, T., Kjartansson, O., Kloss, M., Koudstaal, P. J., Krupinski, J., Labovitz, D. L., Laurie, C. C., Levi, C. R., Li, L., Lind, L., Lindgren, C. M., Lioutas, V., Liu, Y. M., Lopez, O. L., Makoto, H., Martinez-Majander, N., Matsuda, K., Minegishi, N., Montaner, J., Morris, A. P., Muiño, E., Müller-Nurasyid, M., Norrving, B., Ogishima, S., Parati, E. A., Peddareddygari, L. R., Pedersen, N. L., Pera, J., Perola, M., Pezzini, A., Pileggi, S., Rabionet, R., Riba-Llena, I., Ribasés, M., Romero, J. R., Roquer, J., Rudd, A. G., Sarin, A. -P, Sarju, R., Sarnowski, C., Sasaki, M., Satizabal, C. L., Satoh, M., Sattar, N., Sawada, N., Sibolt, G., Sigurdsson, Á, Smith, A., Sobue, K., Soriano-Tárraga, C., Stanne, T., Stine, O. C., Stott, D. J., Strauch, K., Takai, T., Tanaka, H., Tanno, K., Teumer, A., Tomppo, L., Nuria P Torres-Aguila, Touze, E., Tsugane, S., Uitterlinden, A. G., Valdimarsson, E. M., Lee, S. J., Völzke, H., Wakai, K., Weir, D., Williams, S. R., Wolfe, C. D. A., Wong, Q., Xu, H., Yamaji, T., Sanghera, D. K., Melander, O., Jern, C., Strbian, D., Fernandez-Cadenas, I., Longstreth, W. T., Rolfs, A., Hata, J., Woo, D., Rosand, J., Pare, G., Hopewell, J. C., Saleheen, D., Stefansson, K., Worrall, B. B., Kittner, S. J., Seshadri, S., Fornage, M., Markus, H. S., Howson, J. M. M., Kamatani, Y., Debette, S., and Dichgans, M.

50. Why the United States Center for Medicare and Medicaid Services (CMS) should not extend reimbursement indications for carotid artery angioplasty/stenting (International Angiology 31, 1 (85-89))

Author

Abbott, A. L., Adelman, M. A., Alexandrov, A. V., Barnett, H. J. M., Beard, J., Bell, P., Björck, M., Blacker, D., Buckley, C. J., Cambria, R. P., Comerota, A. J., Connolly, E. S., Davies, A. H., Eckstein, H. -H, Faruqi, R., Fraedrich, G., Gloviczki, P., Hankey, G. J., Harbaugh, R. E., Heldenberg, E., Kittner, S. J., Kleinig, T. J., Mikhailidis, D. P., Moore, W. S., Naylor, R., Nicolaides, A., Kosmas I. Paraskevas, Pelz, D. M., Prichard, J. W., Purdie, G., Ricco, J. -B, Riles, T., Rothwell, P., Sandercock, P., Sillesen, H., Spence, J. D., Spinelli, F., Tan, A., Thapar, A., Veith, F. J., and Zhou, W.

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