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2. Depressive symptom profiles predict dementia onset and brain pathology in older persons. The AGES-Reykjavik study

Author

Gerritsen, L., Sigurdsson, S., Jonsson, P.V., Gudnason, V., Launer, L.J., Geerlings, M.I., Leerstoel Engelhard, and Experimental psychopathology

Subjects
Male, Aging, Pathology, medicine.medical_specialty, hippocampus, Neuroscience(all), Apathy, Clinical Neurology, late-life depression, Humans, Medicine, Dementia, Depression (differential diagnoses), Depressive symptoms, Aged, Aged, 80 and over, Depression, business.industry, Proportional hazards model, white matter lesions, General Neuroscience, Incidence (epidemiology), Patient Acuity, Organ Size, Alzheimer's disease, medicine.disease, White Matter, Hippocampal atrophy, Ageing, Hippocampal volume, Female, Gene-Environment Interaction, Neurology (clinical), Geriatrics and Gerontology, medicine.symptom, business, Forecasting, dementia, Developmental Biology
Abstract

Late-life depression (LLD) increases risk for dementia and brain pathology, but possibly this is only true for one or more symptom profiles of LLD. In 4354 participants (76±5 years; 58% female) from the Age, Gene/Environment Susceptibility (AGES)-Reykjavik Study, we identified five LLD symptom profiles, based on the Geriatric Depression Scale-15 (no LLD(57%); apathy(31%); apathy with emptiness(2%), mild LLD(8%) and severe LLD(2%)). Cox regression analyses showed that severe LLD, mild LLD and apathy increased risk of dementia up to 12 years, compared to no LLD. Additionally, hippocampal volume loss and white matter lesion increase, were assessed on 1.5 T MR images, at baseline and after 5 years follow-up. Only severe LLD showed increased WML volume over time, but not on hippocampal volume loss. WML increase over time mediated partially the relation between mild LLD and dementia but not for the other symptom profiles. It appears that hippocampal atrophy and LLD are independent predictors for dementia incidence, whereas for mild LLD the risk for dementia is partially mediated by WML changes.

Published
2022

3. Depression and Dementia: The Role of Cortisol and Vascular Brain Lesions. AGES-Reykjavik Study

Author

Gerritsen, L., Twait, E.L., Jonsson, P.V., Gudnason, V., Launer, L.J., Geerlings, M.I., Gerritsen, L., Twait, E.L., Jonsson, P.V., Gudnason, V., Launer, L.J., and Geerlings, M.I.

Abstract

Background: Late-life depression (LLD) is related to an increased risk of developing dementia; however, the biological mechanisms explaining this relationship remain unclear. Objective: To determine whether the relationship between LLD and dementia can be best explained by the glucocorticoid cascade or vascular hypothesis. Methods: Data are from 4,354 persons (mean age 76±5 years) without dementia at baseline from the AGES-Reykjavik Study. LLD was assessed with the MINI diagnostic interview (current and remitted major depressive disorder [MDD]) and the Geriatric Depression Scale-15. Morning and evening salivary cortisol were collected (glucocorticoid cascade hypothesis). White matter hyperintensities (WMH; vascular hypothesis) volume was assessed using 1.5T brain MRI. Using Cox proportional hazard models, we estimated the associations of LLD, cortisol levels, and WMH volume with incident all-cause dementia, AD, and non-AD dementia. Results: During 8.8±3.2 years of follow-up, 843 persons developed dementia, including 397 with AD. Current MDD was associated with an increased risk of developing all-cause dementia (HR = 2.17; 95% CI 1.66-2.67), with risks similar for AD and non-AD, while remitted MDD was not (HR = 1.02; 95% CI 0.55-1.49). Depressive symptoms were also associated with increased risk of dementia, in particular non-AD dementias. Higher levels of evening cortisol increased risk of dementia, but this was independent of MDD. WMH partially explained the relation between current MDD and dementia risk but remained increased (HR = 1.71; 95% CI 1.34-2.08). Conclusion: The current study highlights the importance of LLD in developing dementia. However, neither the glucocorticoid cascade nor the vascular hypotheses fully explained the relation between depression and dementia.

Published
2022

6. Polyunsaturated fatty acids in relation to incident mobility disability and decline in gait speed; the Age, Gene/Environment Susceptibility-Reykjavik Study

Author

Reinders, I., Murphy, R.A., Song, X., Visser, M., Cotch, M.F., Lang, T.F., Garcia, M.E., Launer, L.J., Siggeirsdottir, K., Eiriksdottir, G., Jonsson, P.V., Gudnason, V., Harris, T.B., and Brouwer, I.A.

Subjects
Unsaturated fatty acids -- Health aspects, Gait -- Research, Physically disabled persons -- Food and nutrition, Food/cooking/nutrition, Health
Abstract

BACKGROUND/OBJECTIVES: Low intake of long chain polyunsaturated fatty acids (PUFAs) are associated with physical disability; however, prospective studies of circulating PUFAs are scarce. We examined associations between plasma phospholipid n-3 and n-6 PUFAs with risk of incident mobility disability and gait speed decline. SUBJECTS/METHODS: Data are from a subgroup of the Age, Gene/Environment Susceptibility-Reykjavik Study, a population- based study of risk factors for disease and disability in old age. In this subgroup (n = 556, mean age 75.1 [+ or -]5.0 years, 47.5% men), plasma phospholipid PUFAs were assessed at baseline using gas chromatography. Mobility disability and usual gait speed were assessed at baseline and after 5.2 [+ or -]0.2 years. Mobility disability was defined as the following: having much difficulty, or being unable to walk 500 m or climb up 10 steps; decline in gait speed was defined as change [greater than or equal to] 0.10 m/s. Logistic regression analyses were performed to determine associations between sex-specific s.d. increments in PUFAs with risk of incident mobility disability and gait speed decline. Odds ratios (95% confidence intervals) adjusted for demographics, follow-up time, risk factors and serum vitamin D were reported. RESULTS: In women, but not men, every s.d. increment increase of total n-3 PUFAs and docosahexaenoic acid (DHA) was associated with lower mobility disability risk, odds ratio 0.48 (0.25; 0.93) and odds ratio 0.45 (0.24; 0.83), respectively. There was no association between n-6 PUFAs and the risk of incident mobility disability or gait speed decline. CONCLUSIONS: Higher concentrations of n-3 PUFAs and, particularly, DHA may protect women from impaired mobility but does not appear to have such an effect in men. European Journal of Clinical Nutrition (2015) 69, 489-493; doi: 10.1038/ejcn.2014.277; published online 14 January 2015, INTRODUCTION Aging is associated with loss of physical function. (1) With the aging of the general population and the considerable prevalence of older persons with mobility disability, identifying modifiable factors [...]

Published
2015
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7. Depression and Dementia:The Role of Cortisol and Vascular Brain Lesions. AGES-Reykjavik Study

Author

Gerritsen, L., Twait, E.L., Jonsson, P.V., Gudnason, V., Launer, L.J., Geerlings, M.I., Leerstoel Engelhard, Experimental psychopathology, General practice, Psychiatry, and Epidemiology and Data Science

Subjects
Male, Depressive Disorder, Major, Hydrocortisone, Cerebrovascular disorders, General Neuroscience, Neuroscience(all), Iceland, Brain, General Medicine, Magnetic Resonance Imaging, White Matter, Interviews as Topic, Clinical Psychology, Psychiatry and Mental health, cohort studies, Risk Factors, mental disorders, depression, Humans, Female, Longitudinal Studies, Geriatrics and Gerontology, Aged, dementia
Abstract

BACKGROUND: Late-life depression (LLD) is related to an increased risk of developing dementia; however, the biological mechanisms explaining this relationship remain unclear.OBJECTIVE: To determine whether the relationship between LLD and dementia can be best explained by the glucocorticoid cascade or vascular hypothesis.METHODS: Data are from 4,354 persons (mean age 76±5 years) without dementia at baseline from the AGES-Reykjavik Study. LLD was assessed with the MINI diagnostic interview (current and remitted major depressive disorder [MDD]) and the Geriatric Depression Scale-15. Morning and evening salivary cortisol were collected (glucocorticoid cascade hypothesis). White matter hyperintensities (WMH; vascular hypothesis) volume was assessed using 1.5T brain MRI. Using Cox proportional hazard models, we estimated the associations of LLD, cortisol levels, and WMH volume with incident all-cause dementia, AD, and non-AD dementia.RESULTS: During 8.8±3.2 years of follow-up, 843 persons developed dementia, including 397 with AD. Current MDD was associated with an increased risk of developing all-cause dementia (HR = 2.17; 95% CI 1.66-2.67), with risks similar for AD and non-AD, while remitted MDD was not (HR = 1.02; 95% CI 0.55-1.49). Depressive symptoms were also associated with increased risk of dementia, in particular non-AD dementias. Higher levels of evening cortisol increased risk of dementia, but this was independent of MDD. WMH partially explained the relation between current MDD and dementia risk but remained increased (HR = 1.71; 95% CI 1.34-2.08).CONCLUSION: The current study highlights the importance of LLD in developing dementia. However, neither the glucocorticoid cascade nor the vascular hypotheses fully explained the relation between depression and dementia.

Published
2022

9. Effects of whey proteins and carbohydrates on the efficacy of resistance training in elderly people: double blind, randomised controlled trial

Author

Arnarson, A., Geirsdottir, O. Gudny, Ramel, A., Briem, K., Jonsson, P.V., and Thorsdottir, I.

Subjects
Carbohydrates -- Physiological aspects -- Health aspects, Bioenergetics -- Research, Energy metabolism -- Research, Proteins -- Physiological aspects -- Health aspects, Strengthening exercises -- Physiological aspects -- Health aspects, Food/cooking/nutrition, Health
Abstract

BACKGROUND/OBJECTIVES: A few previous studies indicate that protein supplementation increases gains in muscle mass and strength during a resistance exercise program. The purpose of this study was to investigate whether whey protein supplementation results in greater increases in lean body mass, muscle strength and physical function in elderly individuals during 12 weeks of resistance exercise when compared to isocaloric carbohydrate supplementation. SUBJECTS/METHODS: A total of 161 men and women, 65-91 years old, participated in a randomized, controlled, double-blind intervention study, involving dietary supplementation and a 12-week resistance exercise program, designed to increase muscle mass and strength of all major muscle groups. Participants exercised three times a week and received either 20 g of whey protein (n = 83) or isocaloric carbohydrate (n = 78) in liquid form immediately after each workout. Data were obtained at baseline and end point. RESULTS: The primary outcomes, lean body mass, strength and physical function increased significantly during the course of the study. Type of dietary supplementation did not influence gains in lean body mass (P = 0.365), quadriceps strength (P = 0.776) or performance during a 6-min walk (P = 0.726) or a timed up-and-go test (P = 0.151). Twenty participants discontinued the intervention. CONCLUSIONS: Ingestion of 20g of whey protein immediately after resistance exercise three times per week, does not lead to greater gains in lean body mass, strength and physical function in elderly people with sufficient energy and protein intakes when compared to isocaloric carbohydrate. European Journal of Clinical Nutrition (2013) 67, 821-826; doi: 10.1038/ejcn.2013.40; published online 13 March 2013 Keywords: elderly; protein; whey protein; resistance exercise; muscle strength; muscle mass, INTRODUCTION Sarcopenia, the loss of muscle mass and strength during aging, is one of the main reasons for the functional decline frequently observed among elderly people. (1,2) Therefore, it is [...]

Published
2013
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10. Cerebral microbleeds in the population based AGES-Reykjavik study: prevalence and location

Author

Sveinbjornsdottir, S., Sigurdsson, S., Aspelund, T., Kjartansson, O., Eiriksdottir, G., Valtysdottir, B., Lopez, O.L., van Buchem, M.A., Jonsson, P.V., Gudnason, V., and Launer, L.J.

Subjects
Hemorrhagic diseases -- Research, Hemorrhagic diseases -- Physiological aspects, Stroke (Disease) -- Research, Stroke (Disease) -- Physiological aspects, Genotype -- Research, Genotype -- Physiological aspects, Amyloidosis -- Research, Amyloidosis -- Physiological aspects, Health, Psychology and mental health
Published
2008

14. Using real-world data (RWD) in health technology assessment (HTA) practice: A comparative study of 5 HTA agencies

Author

Makady, A., van Veelen, P.A., Jonsson, P.V., Moseley, O., d'Andon, A., De Boer, A., Hillege, J.L., Klungel, O., Goettsch, W., Makady, A., van Veelen, P.A., Jonsson, P.V., Moseley, O., d'Andon, A., De Boer, A., Hillege, J.L., Klungel, O., and Goettsch, W.

Abstract

Objectives: Reimbursement decisions are conventionally based on evidence from randomised controlled trials (RCTs) which often have high internal validity but low external validity. Real-world data (RWD) may provide complimentary evidence for relative effectiveness assessments (REAs) and cost-effectiveness assessments (CEAs). This study examines whether RWD is incorporated in Health Technology Assessment (HTA) of melanoma drugs by European HTA agencies, differences in RWD use between agencies and across time. Methods: HTA reports published between 01.01.2011 and 31.12.2016 were retrieved from websites of agencies representing 5 jurisdictions: England (NICE), Scotland (SMC), France (HAS), Germany (IQWiG) and the Netherlands (ZIN). A standardized data-extraction form was used to extract information on RWD inclusion for both REAs and CEAs. A panel of senior HTA assessors representing the 5 agencies was consulted to check the robustness of data extracted and interpretation. Results: Fifty-two reports were retrieved. All 52 reports contained REAs; CEAs were present in 25. RWD was included in 28 of 52 REAs (54%); mainly to estimate melanoma prevalence. RWD was included in 22 of 25 (88%) of CEAs; mainly to extrapolate long-term effectiveness and/or identify drug-related costs drugs. Differences emerged between agencies regarding RWD use in REAs; ZIN and IQWiG cited RWD for evidence on prevalence whereas NICE, SMC and HAS additionally cited RWD use for drug effectiveness. No visible trend for RWD use in REAs and CEAs over time was observed. Conclusions: In general, RWD inclusion was higher in CEAs than REAs. It was mostly used to estimate melanoma prevalence in REAs or to predict long-term effectiveness in CEAs. Differences emerged between agencies' use of RWD. However, no visible trends for RWD use over time were observed. Future research should explore the use of RWD in HTA of drugs in other disease indications and in conditional reimbursement schemes.

Published
2017

15. Using real-world data (RWD) in health technology assessment (HTA) practice: A comparative study of 5 HTA agencies

Author

Afd Pharmacoepi & Clinical Pharmacology, Pharmacoepidemiology and Clinical Pharmacology, Makady, A., van Veelen, P.A., Jonsson, P.V., Moseley, O., d'Andon, A., De Boer, A., Hillege, J.L., Klungel, O., Goettsch, W., Afd Pharmacoepi & Clinical Pharmacology, Pharmacoepidemiology and Clinical Pharmacology, Makady, A., van Veelen, P.A., Jonsson, P.V., Moseley, O., d'Andon, A., De Boer, A., Hillege, J.L., Klungel, O., and Goettsch, W.

Published
2017

16. A novel Alzheimer disease locus located near the gene encoding tau protein

Author

Jun, G., Ibrahim-Verbaas, C.A., Vronskaya, M., Lambert, J.-., Chung, J., Naj, A.C., Kunkle, B.W., Wang, L.-., Bis, J.C., Bellenguez, C., Harold, D., Lunetta, K.L., Destefano, A.L., Grenier-Boley, B., Sims, R., Beecham, G.W., Smith, A.V., Chouraki, V., Hamilton-Nelson, K.L., Ikram, M.A., Fievet, N., Denning, N., Martin, E.R., Schmidt, H., Kamatani, Y., Dunstan, M.L., Valladares, O., Laza, A.R., Zelenika, D., Ramirez, A., Foroud, T.M., Choi, S.-., Boland, A., Becker, T., Kukull, W.A., Van Der Lee, S.J., Pasquier, F., Cruchaga, C., Beekly, D., Fitzpatrick, A.L., Hanon, O., Gill, M., Barber, R., Gudnason, V., Campion, D., Love, S., Bennett, D.A., Amin, N., Berr, C., Tsolaki, M., Buxbaum, J.D., Lopez, O.L., Deramecourt, V., Fox, N.C., Cantwell, L.B., Tárraga, L., Dufouil, C., Hardy, J., Crane, P.K., Eiriksdottir, G., Hannequin, D., Clarke, R., Evans, D., Mosley, T.H., Letenneur, L., Brayne, C., Maier, W., De Jager, P., Emilsson, V., Dartigues, J.-., Hampel, H., Kamboh, M.I., De Bruijn, R.F.A.G., Tzourio, C., Pastor, P., Larson, E.B., Rotter, J.I., O'Donovan, M.C., Montine, T.J., Nalls, M.A., Mead, S., Reiman, E.M., Jonsson, P.V., Holmes, C., St George-Hyslop, P.H., Boada, M., Passmore, P., Wendland, J.R., Schmidt, R., Morgan, K., Winslow, A.R., Powell, J.F., Carasquillo, M., Younkin, S.G., Jakobsdóttir, J., Kauwe, J.S.K., Wilhelmsen, K.C., Rujescu, D., Nöthen, M.M., Hofman, A., Jones, L., Haines, J.L., Psaty, B.M., Van Broeckhoven, C., Holmans, P., Launer, L.J., Mayeux, R., Lathrop, M., Goate, A.M., Escott-Price, V., Seshadri, S., Pericak-Vance, M.A., Amouyel, P., Williams, J., Van Duijn, C.M., Schellenberg, G.D., Farrer, L.A., Adams, P.M., Albert, M.S., Albin, R.L., Apostolova, L.G., Arnold, S.E., Asthana, S., Atwood, C.S., Baldwin, C.T., Barmada, M.M., Barnes, L.L., Beach, T.G., Becker, J.T., Bigio, E.H., Bird, T.D., Blacker, D., Boeve, B.F., Bowen, J.D., Boxer, A., Burke, J.R., Cairns, N.J., Cao, C., Carlson, C.S., Carlsson, C.M., Carney, R.M., Carrasquillo, M.M., Carroll, S.L., Chui, H.C., Clark, D.G., Corneveaux, J., Cribbs, D.H., Crocco, E.A., De Jager, P.L., Decarli, C., Dekosky, S.T., Yesim Demirci, F., Dick, M., Dickson, D.W., Doody, R.S., Duara, R., Ertekin-Taner, N., Faber, K.M., Fairchild, T.J., Fallon, K.B., Farlow, M.R., Ferris, S., Frosch, M.P., Galasko, D.R., Gearing, M., Geschwind, D.H., Ghetti, B., Gilbert, J.R., Glass, J.D., Graff-Radford, N.R., Green, R.C., Growdon, J.H., Hakonarson, H., Hamilton, R.L., Harrell, L.E., Head, E., Honig, L.S., Huebinger, R.M., Huentelman, M.J., Hulette, C.M., Hyman, B.T., Jarvik, G.P., Jicha, G.A., Jin, L., Karydas, A., Kaye, J.A., Kim, R., Koo, E.H., Kowall, N.W., Kramer, J.H., Laferla, F.M., Lah, J.J., Leverenz, J.B., Levey, A.I., Ge, L., Lieberman, A.P., Lin, C., Lyketsos, C.G., Mack, W.J., Marson, D.C., Martiniuk, F., Mash, D.C., Masliah, E., Mccormick, W.C., Mccurry, S.M., Mcdavid, A.N., Mckee, A.C., Mesulam, M., Miller, B.L., Miller, C.A., Miller, J.W., Morris, J.C., Mukherjee, S., Murrell, J.R., Myers, A.J., O'Bryant, S., Olichney, J.M., Pankratz, V.S., Parisi, J.E., Partch, A., Paulson, H.L., Perry, W., Peskind, E., Petersen, R.C., Pierce, A., Poon, W.W., Potter, H., Quinn, J.F., Raj, A., Raskind, M., Reisberg, B., Reisch, J.S., Reitz, C., Ringman, J.M., Roberson, E.D., Rogaeva, E., Rosen, H.J., Rosenberg, R.N., Royall, D.R., Sager, M.A., Sano, M., Saykin, A.J., Schneider, J.A., Schneider, L.S., Seeley, W.W., Smith, A.G., Sonnen, J.A., Spina, S., Stern, R.A., Tanzi, R.E., Thornton-Wells, T.A., Trojanowski, J.Q., Troncoso, J.C., Tsuang, D.W., Van Deerlin, V.M., Van Eldik, L.J., Vardarajan, B.N., Vinters, H.V., Vonsattel, J.P., Weintraub, S., Welsh-Bohmer, K.A., Williamson, J., Wishnek, S., Woltjer, R.L., Wright, C.B., Chuang-Kuo, W., Chang-En, Y., Lei, Y., Thomas, C., Gerrish, A., Chapman, J., Stretton, A., Morgan, A., Oldham, H., Owen, M.J., Kehoe, P.G., Medway, C., Brown, K., Lord, J., Turton, J., Hooper, N.M., Vardy, E., Warren, J.D., Schott, J.M., Uphill, J., Hollingworth, P., Ryan, N., Rossor, M., Collinge, J., Ben-Shlomo, Y., Makrina, D., Gkatzima, O., Lupton, M., Koutroumani, M., Avramidou, D., Germanou, A., Jessen, F., Riedel-Heller, S., Dichgans, M., Heun, R., Kölsch, H., Schürmann, B., Herold, C., Lacour, A., Drichel, D., Hoffmann, P., Kornhuber, J., Wei, G., Feulner, T., Mayhaus, M., Pichler, S., Riemenschneider, M., van den Bussche, H., Lawlor, B., Lynch, A., Mann, D., Smith, A.D., Warden, D., Wilcock, G., Heuser, I., Wiltfang, J., Frölich, L., Hüll, M., Mayo, K., Livingston, G., Bass, N.J., Gurling, H., Mcquillin, A., Gwilliam, R., Deloukas, P., Al-Chalabi, A., Shaw, C.E., Singleton, A.B., Guerreiro, R., Russo, G., Jöckel, K., Moebus, S., Klopp, N., Wichmann, H.-., Li, M., Bisceglio, G., Fisher, E., Warner, N., Pickering-Brown, S., Craig, D., Johnston, J.A., Mcguinness, B., Todd, S., Rubinsztein, D.C., Lovestone, S., Bayer, A., Gallacher, J., Proitsi, P., Ortega-Cubero, Saraadams, P., Albert, M., Albin, R., Apostolova, L., Arnold, S., Atwood, C., Baldwin, C., Barmada, M., Barnes, L., Beach, T., Becker, J., Bigio, E., Bird, T., Boeve, B., Bowen, J., Burke, J., Cairns, N., Carlson, C., Carlsson, C., Carney, R., Carrasquillo, M., Carroll, S., Chui, H., Clark, D., Cribbs, D., Crocco, E., De Jager PL, Dekosky, S., Demirci, F., Dickson, D., Doody, R., Faber, K., Fairchild, T., Fallon, K., Farlow, M., Frosch, M., Galasko, D., Geschwind, D., Gilbert, J., Glass, J., Graff-Radford, N., Green, R., Growdon, J., Hamilton, R., Harrell, L., Honig, L., Huebinger, R., Huentelman, M., Hulette, C., Hyman, B., Jarvik, G., Jicha, G., Kauwe, J., Kaye, J., Koo, E., Kowall, N., Kramer, J., Laferla, F., Lah, J., Leverenz, J., Levey, A., Li, G., Lieberman, A., Lopez, O., Lyketsos, C., Mack, W., Marson, D., Mash, D., Mccormick, W., Mccurry, S., Mcdavid, A., Mckee, A., Miller, B., Miller, C., Miller, J., Morris, J., Murrell, J., Myers, A., Olichney, J., Pankratz, V., Parisi, J., Paulson, H., Petersen, R., Poon, W., Quinn, J., Reisch, J., Ringman, J., Roberson, E., Rosen, H., Rosenberg, R., Royall, D., Sager, M., Saykin, A., Schneider, J., Schneider, L., Seeley, W., Smith, A., Sonnen, J., Stern, R., Tanzi, R., Thornton-Wells, T., Trojanowski, J., Troncoso, J., Tsuang, D., Van Deerlin VM, Van Eldik LJ, Vardarajan, B., Vinters, H., Vonsattel, J., Welsh-Bohmer, K., Woltjer, R., Wright, C., Wu, C., Yu, C., Yu, L., Au, R., Wolf, P., Beiser, A., Satizabal, C., Uitterlinden, A., Rivadeneira, F., Koudstaal, P., Longstreth WT Jr, Kuller, L., Lumley, T., Rice, K., Harris, T., Nalls, M., Marksteiner, J., Dal-Bianco, P., Töglhofer, A., Freudenberger, P., Ransmayr, G., Benke, T., Toeglhofer, A., Boerwinkle, E., Bressler, J., Fornage, M., Morón, F., Hernández, I., Roca, M., Mauleón, A., Alegret, M., Ramírez-Lorca, R., González-Perez, A., Alpérovitch, A., Alvarez, V., Barberger-Gateau, P., Bettens, K., Bossù, P., Brice, A., Bullido, M., Caffara, P., Clarimon, J., Combarros, O., Coto, E., Del Zampo, M., Delepine, M., Deniz Naranjo MC, Epelbaum, J., Fratiglioni, L., Galimberti, D., Graff, C., Hiltunen, M., Ingelsson, M., Keller, L., Lannfelt, L., Llèo, A., Mancuso, M., Mateo, I., Mecocci, P., Nacmias, B., Panza, F., Pilotto, A., Garcia, F., Scarpini, E., Seripa, D., Sleegers, K., Soininen, H., Sorbi, S., Spalletta, G., Wallon, D., Owen, M., Kehoe, P., Hooper, N., Warren, J., Schott, J., Gu, W., Bass, N., Shaw, C., Singleton, A., Wichmann, H., Ma, L., Johnston, J., Rubinsztein, D., Ortega-Cubero, S., Epidemiology, Neurology, and Internal Medicine

Subjects
0301 basic medicine, Apolipoprotein E, Apolipoprotein E4, Single-nucleotide polymorphism, Locus (genetics), Genome-wide association study, genetics [Alzheimer Disease], MAPT protein, human, tau Proteins, Polymorphism, Single Nucleotide, Article, Chromosomes, 03 medical and health sciences, Cellular and Molecular Neuroscience, 0302 clinical medicine, Alzheimer Disease, Settore BIO/13 - Biologia Applicata, Humans, ddc:610, Polymorphism, Molecular Biology, Biology, genetics [Apolipoprotein E4], Genetic association, Temporal cortex, Genetics, Pair 17, Haplotype, Single Nucleotide, 3. Good health, Chromosome 17 (human), genetics [tau Proteins], Chemistry, 030104 developmental biology, Psychiatry and Mental Health, Chromosomes, Human, Pair 17, Genome-Wide Association Study, Settore MED/26 - Neurologia, Human medicine, Psychology, 030217 neurology & neurosurgery, Human
Abstract

APOE epsilon 4, the most significant genetic risk factor for Alzheimer disease (AD), may mask effects of other loci. We re-analyzed genome-wide association study (GWAS) data from the International Genomics of Alzheimer's Project (IGAP) Consortium in APOE epsilon 4+ (10 352 cases and 9207 controls) and APOE epsilon 4 - (7184 cases and 26 968 controls) subgroups as well as in the total sample testing for interaction between a single-nucleotide polymorphism (SNP) and APOE e4 status. Suggestive associations (P < 1x10(-4)) in stage 1 were evaluated in an independent sample (stage 2) containing 4203 subjects (APOE epsilon 4+: 1250 cases and 536 controls; APOE epsilon 4 -: 718 cases and 1699 controls). Among APOE epsilon 4 - subjects, novel genome-wide significant (GWS) association was observed with 17 SNPs (all between KANSL1 and LRRC37A on chromosome 17 near MAPT) in a meta-analysis of the stage 1 and stage 2 data sets (best SNP, rs2732703, P = 5.8 x 10(-9)). Conditional analysis revealed that rs2732703 accounted for association signals in the entire 100-kilobase region that includes MAPT. Except for previously identified AD loci showing stronger association in APOE epsilon 4+ subjects (CR1 and CLU) or APOE epsilon 4 - subjects (MS4A6A/MS4A4A/MS4A6E), no other SNPs were significantly associated with AD in a specific APOE genotype subgroup. In addition, the finding in the stage 1 sample that AD risk is significantly influenced by the interaction of APOE with rs1595014 in TMEM106B (P = 1.6 x 10(-7)) is noteworthy, because TMEM106B variants have previously been associated with risk of frontotemporal dementia. Expression quantitative trait locus analysis revealed that rs113986870, one of the GWS SNPs near rs2732703, is significantly associated with four KANSL1 probes that target transcription of the first translated exon and an untranslated exon in hippocampus (P

Published
2016

21. Co-Presence of Multimorbidity and Disability with Frailty: An Examination of Heterogeneity in the Frail Older Population

Author

Launer, L.J., Jonsdottir, M., Aarts, Sil, Garcia, M.E., Akker,van den, M., Siggeirsdottir, K., Jonsson, P.V., Harris, T.B., Patel, K.V., Verhey, F.R., Metsemakers, J.F.M., and Boxtel,van, M.P.J.

Abstract

BACKGROUND: Frailty is often associated with multimorbidity and disability. OBJECTIVES: We investigated heterogeneity in the frail older population by characterizing five subpopulations according to quantitative biological markers, multimorbidity and disability, and examined their association with mortality and nursing home admission. DESIGN: Observational study. PARTICIPANTS: Participants (n=4,414) were from the population-based Age Gene/Environment Susceptibility Reykjavik Study. MEASUREMENTS: Frailty was defined by ≥ 3 of five characteristics: weight loss, weakness, reduced energy levels, slowness and physical inactivity. Multimorbidity was assessed using a simple disease count, based on 13 prevalent conditions. Disability was assessed by five activities of daily living; participants who had difficulty with one or more tasks were considered disabled. Differences among frail subpopulations were based on the co-presence of multimorbidity and disability. Differences among the following subpopulations were examined: 1) Non-frail (reference group); 2) Frail only; 3) Frail with disability; 4) Frailty with multimorbidity; 5) Frail with disability and multimorbidity. RESULTS: Frailty was present in 10.7% (n=473). Frailty was associated with increased risk for mortality (OR 1.40; 95% CI 1.15-1.69) and nursing home admission (OR 1.50; 95% CI 1.16-1.93); risks differed by subpopulations. Compared to the non-frail, the frail only group had poorer cognition and increased inflammation levels but did not have increased risk for mortality (OR 1.40; 95% CI 0.84-2.33) or nursing home admission (OR 1.01; 95% CI 0.46-2.21). Compared to the non-frail, the other frail subpopulations had significantly poorer cognition, increased inflammation levels, more white matter lesions, higher levels of calcium, glucose and red cell distribution width and increased risk for mortality and nursing home admission. CONCLUSIONS: The adverse health risks associated with frailty in the general older adult population may primarily be driven by increased disease burden and disability.

Published
2015

22. Brain tissue volumes in the general population of the elderly The AGES-Reykjavik Study

Author

Sigurdsson, S., Aspelund, T., Forsberg, L., Fredriksson, J., Kjartansson, O., Oskarsdottir, B., Jonsson, P.V., Eiriksdottir, G., Harris, T.B., Zijdenbos, A., Buchem, M.A. van, Launer, L.J., and Gudnason, V.

Subjects
Aged, 80 and over, Male, Population based, Brain volume, Age Factors, Brain, Organ Size, Magnetic Resonance Imaging, Article, AGES-Reykjavik study, White matter hyperintensities, Humans, Female, Atrophy, Aged
Abstract

Imaging studies have reported conflicting findings on how brain structure differs with age and sex. This may be explained by discrepancies and limitations in study population and study design. We report a study on brain tissue volumes in one of the largest cohorts of individuals studied to date of subjects with high mean age (mean ± standard deviation (SD) 76 ± 6 years). These analyses are based on magnetic resonance imaging (MRI) scans acquired at baseline on 4303 non-demented elderly, and 367 who had a second MRI, on average 2.5 ± 0.2 years later. Tissue segmentation was performed with an automatic image analysis pipeline. Total brain parenchymal (TBP) volume decreased with increasing age while there was an increase in white matter hyperintensities (WMH) in both sexes. A reduction in both normal white matter (NWM)- and gray matter (GM) volume contributed to the brain shrinkage. After adjusting for intra-cranial volume, women had larger brain volumes compared to men (3.32%, p0.001) for TBP volume in the cross-sectional analysis. The longitudinal analysis showed a significant age-sex interaction in TBP volume with a greater rate of annual change in men (-0.70%, 95%CI: -0.78% to -0.63%) than women (-0.55%, 95%CI: -0.61% to -0.49%). The annual change in the cross-sectional data was approximately 40% less than the annual change in the longitudinal data and did not show significant age-sex interaction. The findings indicate that the cross-sectional data underestimate the rate of change in tissue volumes with age as the longitudinal data show greater rate of change in tissue volumes with age for all tissues.

Published
2011

23. A two-stage meta-analysis identifies several new loci for Parkinson's disease

Author

Plagnol, V., Nalls, M.A., Bras, J.M., Hernandez, D., Sharma, M., Sheerin, U.M., Saad, M., Simon-Sanchez, J., Schulte, C., Lesage, S., Sveinbjornsdottir, S., Amouyel, P., Arepalli, S., Band, G., Barker, R.A., Bellinguez, C., Ben-Shlomo, Y., Berendse, H.W., Berg, D., Bhatia, K.P., Bie, R.M. de, Biffi, A., Bloem, B.R., Bochdanovits, Z., Bonin, M., Brockmann, K., Brooks, J., Burn, D.J., Charlesworth, G., Chen, H., Chinnery, P.F., Chong, S., Clarke, C.E., Cookson, M.R., Cooper, J.M., Corvol, J.C., Counsell, J., Damier, P., Dartigues, J.F., Deloukas, P., Deuschl, G., Dexter, D.T., Dijk, K.D. van, Dillman, A., Durif, F., Durr, A., Edkins, S., Evans, J.R., Foltynie, T., Freeman, C., Gao, J., Gardner, M., Gibbs, J.R., Goate, A., Gray, E., Guerreiro, R., Gustafsson, O., Harris, C., Hellenthal, G., Hilten, J.J. van, Hofman, A., Hollenbeck, A., Holton, J.L., Hu, M., Huang, X., Huber, H, Hudson, G., Hunt, S.E., Huttenlocher, J., Illig, T., Jonsson, P.V., Langford, C., Lees, A.J., Lichtner, P., Limousin, P., Lopez, G., McNeill, A., Moorby, C., Moore, M., Morris, H.A., Morrison, K.E., Mudanohwo, E., O'Sullivan, S.S, Pearson, J., Pearson, R., Perlmutter, J., Petursson, H., Pirinen, M., Polnak, P., Post, B., Potter, S.C., Ravina, B., Revesz, T., Riess, O., Rivadeneira, F., Rizzu, P., Ryten, M., Sawcer, S.J., Schapira, A., Scheffer, H., Shaw, K., Shoulson, I., Sidransky, E., Silva, R. de, Smith, C., Spencer, C.C., Stefansson, H., Steinberg, S., Stockton, J.D., Strange, A., Su, Z., Talbot, K., Tanner, C.M., Tashakkori-Ghanbaria, A., Tison, F., Trabzuni, D., Traynor, B.J., Uitterlinden, A.G., Vandrovcova, J., Velseboer, D., Vidailhet, M., Vukcevic, D., Walker, R., Warrenburg, B.P.C. van de, Weale, M.E., Wickremaratchi, M., Williams, N., Williams-Gray, C.H., Winder-Rhodes, S., Stefansson, K., Martinez, M., Donnelly, P., Singleton, A.B., Hardy, J., Heutink, P., Brice, A., Gasser, T., and Wood, N.W.

Subjects
Functional Neurogenomics Human Movement & Fatigue [DCN 2], Genomic disorders and inherited multi-system disorders Functional Neurogenomics [IGMD 3], Functional Neurogenomics [DCN 2]
Abstract

Contains fulltext : 97597.pdf (Publisher’s version ) (Open Access) A previous genome-wide association (GWA) meta-analysis of 12,386 PD cases and 21,026 controls conducted by the International Parkinson's Disease Genomics Consortium (IPDGC) discovered or confirmed 11 Parkinson's disease (PD) loci. This first analysis of the two-stage IPDGC study focused on the set of loci that passed genome-wide significance in the first stage GWA scan. However, the second stage genotyping array, the ImmunoChip, included a larger set of 1,920 SNPs selected on the basis of the GWA analysis. Here, we analyzed this set of 1,920 SNPs, and we identified five additional PD risk loci (combined p

Published
2011

24. CO-PRESENCE OF MULTIMORBIDITY AND DISABILITY WITH FRAILTY: AN EXAMINATION OF HETEROGENEITY IN THE FRAIL OLDER POPULATION

Author

AARTS, S., primary, PATEL, K.V., additional, GARCIA, M.E., additional, VAN DEN AKKER, M., additional, VERHEY, F.R.J., additional, METSEMAKERS, J.F.M., additional, VAN BOXTEL, M.P.J., additional, GUDNASON, V., additional, JONSDOTTIR, M.K., additional, SIGGEIRSDOTTIR, K., additional, JONSSON, P.V., additional, HARRIS, T.B., additional, and LAUNER, L.J., additional

Published
2015
Full Text
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25. Gene-wide analysis detects two new susceptibility genes for Alzheimer's disease

Author

Escott-Price, V. (Valentina), Bellenguez, C. (Céline), Wang, L.S. (Li-San), Choi, S.-H. (Seung-Hoan), Harold, D. (Denise), Jones, L. (Louisa), Holmans, P.A. (Peter), Gerrish, A. (Amy), Vedernikov, A. (Alexey), Richards, A. (Alex), DeStefano, A.L. (Anita), Lambert, J.-C. (J.), Ibrahim-Verbaas, C.A. (Carla), Naj, A.C. (Adam), Sims, R. (Rebecca), Jun, Y. (Yang), Bis, J.C. (Joshua), Beecham, G.W. (Gary), Grenier-Boley, B. (Benjamin), Russo, G. (Giancarlo), Thornton-Wells, T.A. (Tricia), Denning, N. (Nicola), Smith, A.V. (Davey), Chouraki, V. (Vincent), Thomas, C. (Charlene), Ikram, M.A. (Arfan), Zelenika, D. (Diana), Vardarajan, B.N. (Badri), Kamatani, Y. (Yoichiro), Lin, C.-F. (Chiao-Feng), Schmidt, R. (Reinhold), Kunkle, B. (Brian), Dunstan, M.L. (Melanie), Vronskaya, M. (Maria), Johnson, A.D. (Andrew), Ruiz, A. (Agustin), Bihoreau, M.-T. (Marie-Thérèse), Reitz, C. (Christiane), Pasquier, F. (Florence), Hollingworth, P. (Paul), Hanon, O. (Olivier), Fitzpatrick, A.L. (Annette), Buxbaum, J.D. (Joseph D), Campion, D. (Dominique), Crane, L.M.A., Becker, C.B.T. (Clinton), Gudnason, V. (Vilmundur), Cruchaga, C. (Carlos), Craig, D. (David), Amin, N. (Najaf), Berr, C. (Claudine), Lopez, O.L. (Oscar), Jager, P.L. (Philip) de, Deramecourt, V. (Vincent), Johnston, J.A. (Janet), Evans, D.A. (Denis), Lovestone, S. (Simon), Letenneur, L., Hernández, I. (Isabel), Rubinsztein, D.C. (David), Eiriksdottir, G. (Gudny), Sleegers, K. (Kristel), Goate, A.M. (Alison), Fiévet, N. (Nathalie), Huentelman, M.J. (Matthew), Gill, M. (Michael), Brown, K. (Kristelle), Kamboh, M.I. (M. Ilyas), Keller, L. (Lina), Barberger-Gateau, P. (Pascale), McGuinness, B. (Bernadette), Larson, E.B. (Eric), Myers, A.J. (Amanda), Dufouil, C. (Carole), Todd, S. (Stephen), Wallon, D. (David), Love, S. (Seth), Rogaeva, E. (Ekaterina), Gallacher, J. (John), St George-Hyslop, P.H. (Peter), Clarimon, J. (Jordi), Lleo, A. (Alberto), Bayer, T. (T.), Tsuang, D.W. (Debby), Yu, L. (Lei), Tsolaki, M. (Magda), Bossù, P. (Paola), Spalletta, G. (Gianfranco), Proitsi, P. (Petroula), Collinge, J. (John), Sorbi, S. (Sandro), Sanchez Garcia, F. (Florentino), Fox, N.C. (Nick), Hardy, J. (John), Naranjo, A. (Antonio), Bosco, P. (Paolo), Clarke, R. (Robert), Brayne, C. (Carol), Galimberti, D. (Daniela), Scarpini, E. (Elio), Bonuccelli, U. (Ubaldo), Mancuso, M. (Michelangelo), Siciliano, G. (Gabriele), Moebus, S. (Susanne), Mecocci, P. (Patrizia), Zompo, M.D. (Maria) del, Maier, W. (Wolfgang), Hampel, H. (Harald), Pilotto, A. (Alberto), Frank-Garcia, A. (Ana), Panza, F. (Francesco), Solfrizzi, V. (Vincenzo), Caffarra, P. (Paolo), Nacmias, B. (Benedetta), Perry, W. (William), Mayhaus, M. (Manuel), Lannfelt, L. (Lars), Hakonarson, H. (Hakon), Pichler, I. (Irene), Carrasquillo, M.M. (Minerva), Ingelsson, M. (Martin), Beekly, D. (Duane), Alvarez, V. (Victoria), Zou, F. (Fanggeng), Valladares, O. (Otto), Younkin, S., Coto, E. (Eliecer), Hamilton-Nelson, K.L. (Kara), Gu, W. (Wei), Razquin, C. (Cristina), Pastor, P. (Pau), Mateo, I. (Ignacio), Owen, M.J. (Michael), Faber, K.M. (Kelley), Jonsson, P.V. (Palmi), Combarros, O. (Onofre), O'Donovan, M. (Michael), Cantwell, L.B. (Laura), Soininen, H. (Hilkka), Blacker, D. (Deborah), Mead, S. (Simon), Mosley, T.H. (Thomas), Bennett, D.A. (David), Harris, T.B. (Tamara), Fratiglioni, L. (Laura), Holmes, C. (Clive), Bruijn, R.F.A.G. (Renée) de, Passmore, P.A. (Peter), Montine, T.J. (Thomas), Bettens, K. (Karolien), Rotter, J.I. (Jerome), Brice, A., Morgan, K. (Kevin), Foroud, T. (Tatiana), Kukull, W.A., Hannequin, D. (Didier), Powell, J. (John), Nalls, M.A. (Michael), Ritchie, K. (Karen), Lunetta, K.L. (Kathryn), Kauwe, J.S.K. (John), Boerwinkle, E.A. (Eric), Riemenschneider, M. (Matthias), Boada, M. (Mercè), Hiltunen, M. (Mikko), Martin, E.R. (Eden), Rujescu, D. (Dan), Dartigues, J.-F., Mayeux, R. (Richard), Tzourio, C. (Christophe), Hofman, A. (Albert), Nöthen, M.M. (Markus), Graff, M.J. (Maud J.L.), Psaty, B.M. (Bruce), Haines, J.L. (Jonathan), Lathrop, M. (Mark), Pericak-Vance, M.A. (Margaret), Launer, L.J. (Lenore), Broeckhoven, C. (Christine) van, Farrer, L.A. (Lindsay), Duijn, C.M. (Cornelia) van, Ramirez, A. (Alfredo), Seshadri, S. (Sudha), Schellenberg, G.D. (Gerard), Amouyel, P. (Philippe), Williams, J. (Julie), Escott-Price, V. (Valentina), Bellenguez, C. (Céline), Wang, L.S. (Li-San), Choi, S.-H. (Seung-Hoan), Harold, D. (Denise), Jones, L. (Louisa), Holmans, P.A. (Peter), Gerrish, A. (Amy), Vedernikov, A. (Alexey), Richards, A. (Alex), DeStefano, A.L. (Anita), Lambert, J.-C. (J.), Ibrahim-Verbaas, C.A. (Carla), Naj, A.C. (Adam), Sims, R. (Rebecca), Jun, Y. (Yang), Bis, J.C. (Joshua), Beecham, G.W. (Gary), Grenier-Boley, B. (Benjamin), Russo, G. (Giancarlo), Thornton-Wells, T.A. (Tricia), Denning, N. (Nicola), Smith, A.V. (Davey), Chouraki, V. (Vincent), Thomas, C. (Charlene), Ikram, M.A. (Arfan), Zelenika, D. (Diana), Vardarajan, B.N. (Badri), Kamatani, Y. (Yoichiro), Lin, C.-F. (Chiao-Feng), Schmidt, R. (Reinhold), Kunkle, B. (Brian), Dunstan, M.L. (Melanie), Vronskaya, M. (Maria), Johnson, A.D. (Andrew), Ruiz, A. (Agustin), Bihoreau, M.-T. (Marie-Thérèse), Reitz, C. (Christiane), Pasquier, F. (Florence), Hollingworth, P. (Paul), Hanon, O. (Olivier), Fitzpatrick, A.L. (Annette), Buxbaum, J.D. (Joseph D), Campion, D. (Dominique), Crane, L.M.A., Becker, C.B.T. (Clinton), Gudnason, V. (Vilmundur), Cruchaga, C. (Carlos), Craig, D. (David), Amin, N. (Najaf), Berr, C. (Claudine), Lopez, O.L. (Oscar), Jager, P.L. (Philip) de, Deramecourt, V. (Vincent), Johnston, J.A. (Janet), Evans, D.A. (Denis), Lovestone, S. (Simon), Letenneur, L., Hernández, I. (Isabel), Rubinsztein, D.C. (David), Eiriksdottir, G. (Gudny), Sleegers, K. (Kristel), Goate, A.M. (Alison), Fiévet, N. (Nathalie), Huentelman, M.J. (Matthew), Gill, M. (Michael), Brown, K. (Kristelle), Kamboh, M.I. (M. Ilyas), Keller, L. (Lina), Barberger-Gateau, P. (Pascale), McGuinness, B. (Bernadette), Larson, E.B. (Eric), Myers, A.J. (Amanda), Dufouil, C. (Carole), Todd, S. (Stephen), Wallon, D. (David), Love, S. (Seth), Rogaeva, E. (Ekaterina), Gallacher, J. (John), St George-Hyslop, P.H. (Peter), Clarimon, J. (Jordi), Lleo, A. (Alberto), Bayer, T. (T.), Tsuang, D.W. (Debby), Yu, L. (Lei), Tsolaki, M. (Magda), Bossù, P. (Paola), Spalletta, G. (Gianfranco), Proitsi, P. (Petroula), Collinge, J. (John), Sorbi, S. (Sandro), Sanchez Garcia, F. (Florentino), Fox, N.C. (Nick), Hardy, J. (John), Naranjo, A. (Antonio), Bosco, P. (Paolo), Clarke, R. (Robert), Brayne, C. (Carol), Galimberti, D. (Daniela), Scarpini, E. (Elio), Bonuccelli, U. (Ubaldo), Mancuso, M. (Michelangelo), Siciliano, G. (Gabriele), Moebus, S. (Susanne), Mecocci, P. (Patrizia), Zompo, M.D. (Maria) del, Maier, W. (Wolfgang), Hampel, H. (Harald), Pilotto, A. (Alberto), Frank-Garcia, A. (Ana), Panza, F. (Francesco), Solfrizzi, V. (Vincenzo), Caffarra, P. (Paolo), Nacmias, B. (Benedetta), Perry, W. (William), Mayhaus, M. (Manuel), Lannfelt, L. (Lars), Hakonarson, H. (Hakon), Pichler, I. (Irene), Carrasquillo, M.M. (Minerva), Ingelsson, M. (Martin), Beekly, D. (Duane), Alvarez, V. (Victoria), Zou, F. (Fanggeng), Valladares, O. (Otto), Younkin, S., Coto, E. (Eliecer), Hamilton-Nelson, K.L. (Kara), Gu, W. (Wei), Razquin, C. (Cristina), Pastor, P. (Pau), Mateo, I. (Ignacio), Owen, M.J. (Michael), Faber, K.M. (Kelley), Jonsson, P.V. (Palmi), Combarros, O. (Onofre), O'Donovan, M. (Michael), Cantwell, L.B. (Laura), Soininen, H. (Hilkka), Blacker, D. (Deborah), Mead, S. (Simon), Mosley, T.H. (Thomas), Bennett, D.A. (David), Harris, T.B. (Tamara), Fratiglioni, L. (Laura), Holmes, C. (Clive), Bruijn, R.F.A.G. (Renée) de, Passmore, P.A. (Peter), Montine, T.J. (Thomas), Bettens, K. (Karolien), Rotter, J.I. (Jerome), Brice, A., Morgan, K. (Kevin), Foroud, T. (Tatiana), Kukull, W.A., Hannequin, D. (Didier), Powell, J. (John), Nalls, M.A. (Michael), Ritchie, K. (Karen), Lunetta, K.L. (Kathryn), Kauwe, J.S.K. (John), Boerwinkle, E.A. (Eric), Riemenschneider, M. (Matthias), Boada, M. (Mercè), Hiltunen, M. (Mikko), Martin, E.R. (Eden), Rujescu, D. (Dan), Dartigues, J.-F., Mayeux, R. (Richard), Tzourio, C. (Christophe), Hofman, A. (Albert), Nöthen, M.M. (Markus), Graff, M.J. (Maud J.L.), Psaty, B.M. (Bruce), Haines, J.L. (Jonathan), Lathrop, M. (Mark), Pericak-Vance, M.A. (Margaret), Launer, L.J. (Lenore), Broeckhoven, C. (Christine) van, Farrer, L.A. (Lindsay), Duijn, C.M. (Cornelia) van, Ramirez, A. (Alfredo), Seshadri, S. (Sudha), Schellenberg, G.D. (Gerard), Amouyel, P. (Philippe), and Williams, J. (Julie)

Published
2014
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26. Unintended weight loss in the elderly living at home: the aged in homecare project (Adhoc)

Author

Sørbye, Liv Wergeland, Schroll, M., Finne-Soveri, H., Jonsson, P.V., Ljunggren, G., Topinkova, E., and Bernabei, R.

Subjects
vitenskapelig (fagfellevurdert), vekttap, eldre, malnutrition, weight loss, home care, elderly, hjemmetjenester, ernæring
Abstract

Objective: To describe associations between unintended weight loss (UWL) and characteristics of nutritional status. Design: A comparative cross-sectional assessment study at 11 sites in Europe. The target population was a stratified random sample of 4,455 recipients of home care (405 in each random sample from 11 urban areas) aged 65 years and older. Measurements: the Resident Assessment Instrument for Home Care, version 2.0. Epidemiological and medical characteristics of clients and service utilisation were recorded in a standardized, comparative manner. UWL was defined as information of 5% or more weight loss in the last 30 days (or 10% or more in the last 180 days). Results: The final sample consisted of 4,010 persons; 74% were female. The mean ages were 80.9 ± 7.5 years (males) and 82.8 ± 7.3 years (females). No associations were found between single diagnoses and UWL, except for cancer. Cancer patients were excluded from further analyses. Persons with a Cognitive Performance Scale value (CPS) > 3 (impaired) had increased risk of UWL (OR = 2.0) compared with those scoring < 3 (less impaired). Only in the oldest group did we find a significant association between UWL and reduction in ADL and IADL functions, comparing those who scored 3 or less with those who scored more than 3 (disabled). A binary logistic regression model explained 26% of UWL: less than one meal/day, reduced appetite, malnutrition, reduced social activity, experiencing a flare-up of a recurrent or chronic problem, and hospitalisation were important indicators. Conclusion: We recommend a regular comprehensive assessment in home care to identify clients with potential risk factors for weight loss and malnutrition, in particular those discharged from hospital, and those with physical dependency or cognitive problems. This study may provide incentives to create tailored preventive strategies.

Published
2008

28. Genome-wide analysis of genetic loci associated with Alzheimer disease

Author

Seshadri, S. (Sudha), Fitzpatrick, A.L. (Annette), Ikram, M.A. (Arfan), DeStefano, A.L. (Anita), Gudnason, V. (Vilmundur), Boada, M. (Merce), Bis, J.C. (Joshua), Smith, A.V. (Albert), Carassquillo, M.M. (Minerva M.), Lambert, J.-C. (J.), Harold, D. (Denise), Schrijvers, E.M.C. (Elisabeth M. C.), Ramírez-Lorca, R. (R.), Debette, S. (Stéphanie), Longstreth Jr, W.T., Janssens, A.C.J.W. (Cécile), Pankratz, V.S. (Shane), Dartigues, J.-F., Hollingworth, P. (Paul), Aspelund, T. (Thor), Hernández, I. (Isabel), Beiser, A. (Alexa), Kuller, L.H. (Lewis), Koudstaal, P.J. (Peter), Dickson, D. (Dennis), Tzourio, C. (Christophe), Abraham, R. (Richard), Antúnez, C. (C.), Du, Y. (Yangchun), Rotter, J.I. (Jerome I.), Aulchenko, Y.S. (Yurii), Harris, T.B. (Tamara), Petersen, R.C. (Ronald C.), Berr, C. (Claudine), Owen, M.J. (Michael), López-Arrieta, J. (J.), Vardarajan, B.N. (Badri), Becker, J.T. (James), Rivadeneira Ramirez, F. (Fernando), Nalls, M.A. (Michael), Graff-Radford, N.R. (Neill), Campion, D. (Dominique), Auerbach, S. (Sanford), Rice, K.M. (Kenneth), Hofman, A. (Albert), Jonsson, P.V. (Palmi V.), Schmidt, H. (Helena), Lathrop, M. (Mark), Mosley, T.H. (Thomas H.), Au, R. (Rhoda), Psaty, B.M. (Bruce), Uitterlinden, A.G. (André), Farrer, L.A. (Lindsay), Lumley, T. (Thomas), Ruiz, A. (A.), Williams, J. (Julie), Amouyel, P. (Philippe), Younkin, S., Wolf, P.A. (Philip A.), Launer, L.J. (Lenore), Lopez, O.L. (Oscar), Duijn, C.M. (Cornelia) van, Breteler, M.M.B. (Monique), Seshadri, S. (Sudha), Fitzpatrick, A.L. (Annette), Ikram, M.A. (Arfan), DeStefano, A.L. (Anita), Gudnason, V. (Vilmundur), Boada, M. (Merce), Bis, J.C. (Joshua), Smith, A.V. (Albert), Carassquillo, M.M. (Minerva M.), Lambert, J.-C. (J.), Harold, D. (Denise), Schrijvers, E.M.C. (Elisabeth M. C.), Ramírez-Lorca, R. (R.), Debette, S. (Stéphanie), Longstreth Jr, W.T., Janssens, A.C.J.W. (Cécile), Pankratz, V.S. (Shane), Dartigues, J.-F., Hollingworth, P. (Paul), Aspelund, T. (Thor), Hernández, I. (Isabel), Beiser, A. (Alexa), Kuller, L.H. (Lewis), Koudstaal, P.J. (Peter), Dickson, D. (Dennis), Tzourio, C. (Christophe), Abraham, R. (Richard), Antúnez, C. (C.), Du, Y. (Yangchun), Rotter, J.I. (Jerome I.), Aulchenko, Y.S. (Yurii), Harris, T.B. (Tamara), Petersen, R.C. (Ronald C.), Berr, C. (Claudine), Owen, M.J. (Michael), López-Arrieta, J. (J.), Vardarajan, B.N. (Badri), Becker, J.T. (James), Rivadeneira Ramirez, F. (Fernando), Nalls, M.A. (Michael), Graff-Radford, N.R. (Neill), Campion, D. (Dominique), Auerbach, S. (Sanford), Rice, K.M. (Kenneth), Hofman, A. (Albert), Jonsson, P.V. (Palmi V.), Schmidt, H. (Helena), Lathrop, M. (Mark), Mosley, T.H. (Thomas H.), Au, R. (Rhoda), Psaty, B.M. (Bruce), Uitterlinden, A.G. (André), Farrer, L.A. (Lindsay), Lumley, T. (Thomas), Ruiz, A. (A.), Williams, J. (Julie), Amouyel, P. (Philippe), Younkin, S., Wolf, P.A. (Philip A.), Launer, L.J. (Lenore), Lopez, O.L. (Oscar), Duijn, C.M. (Cornelia) van, and Breteler, M.M.B. (Monique)

Abstract

Context: Genome-wide association studies (GWAS) have recently identified CLU, PICALM, and CR1 as novel genes for late-onset Alzheimer disease (AD). Objectives: To identify and strengthen additional loci associated with AD and confirm these in an independent sample and to examine the contribution of recently identified genes to AD risk prediction in a 3-stage analysis of new and previously published GWAS on more than 35 000 persons (8371 AD cases). Design, Setting, and Participants: In stage 1, we identified strong genetic associations (P<10-3) in a sample of 3006 AD cases and 14 642 controls by combining new data from the population-based Cohorts for Heart and Aging Research in Genomic Epidemiology consortium (1367 AD cases [973 incident]) with previously reported results from the Translational Genomics Research Institute and the Mayo AD GWAS. We identified 2708 single-nucleotide polymorphisms (SNPs) with P<10-3. In stage 2, we pooled results for these SNPs with the European AD Initiative (2032 cases and 5328 controls) to identify 38 SNPs (10 loci) with P<10-5. In stage 3, we combined data for these 10 loci with data from the Genetic and Environmental Risk in AD consortium (3333 cases and 6995 controls) to identify 4 SNPs with P<1.7 × 10-8. These 4 SNPs were replicated in an independent Spanish sample (1140 AD cases and 1209 controls). Genome-wide association analyses were completed in 2007-2008 and the meta-analyses and replication in 2009. Main Outcome Measure: Presence of Alzheimer disease. Results: Two loci were identified to have genome-wide significance for the first time: rs744373 near BIN1 (odds ratio [OR],1.13; 95% confidence interval [CI],1.06-1.21 per copy of the minor allele; P=1.59×10-11) and rs597668 near EXOC3L2/BLOC1S3/ MARK4 (OR, 1.18; 95% CI, 1.07-1.29; P=6.45×10-9). Associations of these 2 loci plus the previously identified loci CLU and PICALM with AD were confirmed in the Spanish sample (P<.05). However, although CLU and PICALM were confirmed to

Published
2010
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29. Response to 'Increasing physical activity requires increasing energy intake in elderly'

Author

Arnarson, A., Geirsdottir, O.G., Ramel, A., Briem, K., Jonsson, P.V., and Thorsdottir, I.

Subjects
Exercise -- Health aspects, Aged -- Physiological aspects -- Health aspects, Exercise for the aged -- Health aspects, Bioenergetics -- Research, Energy metabolism -- Research, Food/cooking/nutrition, Health
Abstract

We are grateful for the review of our article (1) by Dr Safer et al. (2) The question is whether or not the benefits of protein intake would have been [...]

Published
2013
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30. Variations in quality of Home Care between sites across Europe, as measured by Home Care Quality Indicators.

Author

Bos, J.T., Frijters, D.H., Wagner, C., Carpenter, G.I., Finne-Soveri, H., Topinkova, E., Garms-Homolova, V., Henrard, J.C., Jonsson, P.V., Sorbye, L., Ljunggren, G., Schroll, M., Gambassi, G., Bernabei, R., Bos, J.T., Frijters, D.H., Wagner, C., Carpenter, G.I., Finne-Soveri, H., Topinkova, E., Garms-Homolova, V., Henrard, J.C., Jonsson, P.V., Sorbye, L., Ljunggren, G., Schroll, M., Gambassi, G., and Bernabei, R.

Abstract

Item does not contain fulltext, BACKGROUND AND AIMS: The increase in the proportion of elderly people and a consequent increase in the demand for care have caused healthcare systems to become overloaded. This paper describes the use of Home Care Quality Indicators (HCQIs), derived from the Minimum Data Set for Home Care, for monitoring quality of care. Research questions were, "Do HCQI scores vary between home care organizations in different countries?" and "Are one or more country-specific sites consistently scoring better on most or all HCQIs"? METHODS: a cross-sectional observational study of 65+ randomly selected clients of home care organizations in urban areas in 11 European countries who had been receiving home care for at least two weeks. Data were collected with the MDS-HC. The scoring of 16 prevalent quality indicators for home care, adjusted for population differences, was calculated with baseline data. RESULTS: Population size at baseline was 4,007 clients. Among home care clients in Europe, "rehabilitation potential in Activities of Daily Living and no therapies" (average 75.9%) and "inadequate pain control" were the most common quality problems. The prevalence between populations studied in various countries varied substantially. No country-specific site consistently scored worst or best. CONCLUSIONS: HCQIs derived from the MDS-HC detect variance in quality scores between home care in the 11 partner countries. The highest prevalence of unwanted outcomes were most often found in the Czech Republic, Italy and Germany. Although further research is necessary, we believe that HCQIs may be of great value for quality improvement in home care.

Published
2007

33. Cerebral microbleeds, retinopathy, and dementia

Author

Qiu, C., Cotch, M.F., Sigurdsson, S., Jonsson, P.V., Jonsdottir, M.K., Sveinbjörnsdottir, S., Eiriksdottir, G., Klein, R., Harris, T.B., van Buchem, M.A., Gudnason, V., and Launer, L.J.

Abstract

To determine whether microvascular damage, indicated by cerebral microbleeds (CMBs) and retinal microvascular signs, is associated with cognitive function and dementia in older persons.

Published
2010
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34. The sarcopenia and physical frailty in older people: multi-component treatment strategies (SPRINTT) project: description and feasibility of a nutrition intervention in community-dwelling older Europeans

Author

Jyvakorpi S. K., Ramel A., Strandberg T. E., Piotrowicz K., Blaszczyk-Bebenek E., Urtamo A., Rempe H. M., Geirsdottir O., Vagnerova T., Billot M., Larreur A., Savera G., Soriano G., Picauron C., Tagliaferri S., Sanchez-Puelles C., Cadenas V. S., Perl A., Tirrel L., Ohman H., Weling-Scheepers C., Ambrosi S., Costantini A., Pavelkova K., Klimkova M., Freiberger E., Jonsson P. V., Marzetti E., Pitkala K. H., Landi F., Calvani R., Bernabei R., Boni C., Brandi V., Broccatelli M., Celesti C., Cicchetti A., Collamati A., Coretti S., D'Angelo E., D'Elia M., Landi G., Lorenzi M., Mariotti L., Martone A. M., Ortolani E., Pafundi T., Picca A., Ruggeri M., Salini S., Tosato M., Vetrano D. L., Lattanzio F., Baldoni R., Bernabei S., Bonfigli A. R., Bustacchini S., Carrieri B., Cassetta L., Cherubini A., Cucchi M., Cucchieri G., Costantini A. R., Dell'Aquila G., Espinosa E., Fedecostante M., Fraternali R., Galeazzi R., Mengarelli A., Piomboni S., Posacki E., Severini E., Tregambe T., Trotta F., Maggio M., Lauretani F., Butto V., Fisichella A., Guareschi C., Longobucco Y., Di Bari M., Rodriguez-Manas L., Alamo S., Bouzon C. A., Gonzales Turin J., Zafra O. L. L., Picazo A. L., Sepulveda L. P., SanchezSanchez J. L., Puelles C. S., Aragones M. V., CruzJentoft A. J., Santos J. A., Alvarez-Nebreda L., JimenezJimenez N. F., Nozal J. M. -D., Montero-Errasquin B., Moreno B. P. B. P., Roldan-Plaza C., Vicente A. R. -D., Sanchez-Cadenas V., Sanchez-Castellano C., Sanchez-Garcia E., Vaquero-Pinto M. N., Topinkova E., Bautzka L., Blechova K., Gueye T., Juklickova I., Klbikova T., Krenkova J. J., Madlova P., Mejstrikova H., Melcova R., Michalkova H., Ryznarova I., Drastichova I., Hasalikova E., Hucko R., Jakub S., Janacova M., Kilmkova M., Parizkova M., Redrova M., Ruskova P. P., Sieber C. C., Auerswald T., Engel C., Franke A., Freibergen E., Freiheit U., Gotthardt S., Kampe K., Kob R., Kokott C., Kraska C., Meyer C., Reith V., Rempe H., Schoene D., Sieber G., Zielinski K., Anker S. D., Ebner N., Grutz R., von Haehling S., Schols A. M. W. J., Gosker H., Huysmans S., Quaaden S., Schols J. M., Smeets N., Stevens P., van de Bool C., Weling C., Strandberg T., Jyvakorpi S., Hallikas K., Herranen M., Huusko T., Hytonen L., Ikonen K., Karppi-Sjoblom A., Karvinen K., Kayhty M., Kindsted T., Landstrom E., Leirimaa S., Pitkala K., Punkka A., Saavalainen A. -M., Salo T., Sepa M., Sohlberg K., Vaatamoinen E., Venalainen S., Vanhanen H., Vellas B., Van Kan G. A., Biville V., Brigitte L., Cervera C., Cesari M., Champarnaud M., Cluzan C., Croizet M., Dardenne S., Dorard M., Dupuy C., Durand E., Faisant C., Fougere B., Girard P., Guyonnet S., Hoogendijk E., Mauroux R., Milhet A., Montel S., Ousset P. -J., Teguo M. T., Teysseyre B., Andrieu S., Blasimme A., Dray C., Rial-Sebbag E., Valet P., Dantoine T., Cardinaud N., Castelli M., Charenton-Blavignac M., Ciccolari-Micaldi C., Gayot C., Laubarie-Mouriet C., Marchesseau D., Mergans T., Nguyen T. B., Papon A., Ribet J., Saulinier I., Tchalla A., Rapp T., Sirven N., Skalska A., Blaszcyk E., Cwynar M., Czesak J., Fatyga P., Fedyk-Lukasik M., Grodzicki T., Jamrozik P., Janusz Z., Klimek E., Komoniewska S., Kret M., Ozog M., Parnicka A., Petitjean K., Pietrzyk A., Skalska-Dulinska B., Starzyk D., Szczerbinska K., Witkiewicz B., Wlodarczyk A., Sinclair A., Harris S., Ogborne A., Ritchie S., Sinclair C., Sinclair H., Bellary S., Worthington H., Derejczyk J., Roller-Wirnsberger R., Jonsson P., Bordes P., Arnaud S., Asbrand C., Bejuit R., Durand S., Flechsenhar K., Joly F., Lain R. L., Moncharmont M., Msihid J., Ndja A., Riche B., Weber A. C., Yuan J., Roubenoff R., Kortebein P., Miller R. R., Gorostiaga C., Belissa-Mathiot P., Hu H., Laigle L., Melchor I. M., Russel A., Bennecky M., Haws T., Joshi A., Philpott K., Walker A., Zia G., Giorgi S. D., Feletti L., Marchioro E., Mocci F., Varesio M. G., Cesario A., Cabin B., de Boer W. P., Ignaszewski C., Klingmann I., Vollenbroek-Hutten M., Hermens T., Jansen-Kosterink S., Tabak M., Blandin P., Coutard L., Lenzotti A. -M., Mokhtari H., Rodon N., RS: MHeNs - R1 - Cognitive Neuropsychiatry and Clinical Neuroscience, RS: CAPHRI - R1 - Ageing and Long-Term Care, Health Services Research, Handicap, Activité, Vieillissement, Autonomie, Environnement (HAVAE), Institut Génomique, Environnement, Immunité, Santé, Thérapeutique (GEIST), Université de Limoges (UNILIM)-Université de Limoges (UNILIM), Clinicum, Department of General Practice and Primary Health Care, University of Helsinki, HUS Internal Medicine and Rehabilitation, Timo Strandberg / Principal Investigator, Department of Medicine, Helsinki University Hospital Area, Teachers' Academy, Jyvakorpi S.K., Ramel A., Strandberg T.E., Piotrowicz K., Blaszczyk-Bebenek E., Urtamo A., Rempe H.M., Geirsdottir O., Vagnerova T., Billot M., Larreur A., Savera G., Soriano G., Picauron C., Tagliaferri S., Sanchez-Puelles C., Cadenas V.S., Perl A., Tirrel L., Ohman H., Weling-Scheepers C., Ambrosi S., Costantini A., Pavelkova K., Klimkova M., Freiberger E., Jonsson P.V., Marzetti E., Pitkala K.H., Landi F., Calvani R., Bernabei R., Boni C., Brandi V., Broccatelli M., Celesti C., Cicchetti A., Collamati A., Coretti S., D'Angelo E., D'Elia M., Landi G., Lorenzi M., Mariotti L., Martone A.M., Ortolani E., Pafundi T., Picca A., Ruggeri M., Salini S., Tosato M., Vetrano D.L., Lattanzio F., Baldoni R., Bernabei S., Bonfigli A.R., Bustacchini S., Carrieri B., Cassetta L., Cherubini A., Cucchi M., Cucchieri G., Costantini A.R., Dell'Aquila G., Espinosa E., Fedecostante M., Fraternali R., Galeazzi R., Mengarelli A., Piomboni S., Posacki E., Severini E., Tregambe T., Trotta F., Maggio M., Lauretani F., Butto V., Fisichella A., Guareschi C., Longobucco Y., Di Bari M., Rodriguez-Manas L., Alamo S., Bouzon C.A., Gonzales Turin J., Zafra O.L.L., Picazo A.L., Sepulveda L.P., SanchezSanchez J.L., Puelles C.S., Aragones M.V., CruzJentoft A.J., Santos J.A., Alvarez-Nebreda L., JimenezJimenez N.F., Nozal J.M.-D., Montero-Errasquin B., Moreno B.P.B.P., Roldan-Plaza C., Vicente A.R.-D., Sanchez-Cadenas V., Sanchez-Castellano C., Sanchez-Garcia E., Vaquero-Pinto M.N., Topinkova E., Bautzka L., Blechova K., Gueye T., Juklickova I., Klbikova T., Krenkova J.J., Madlova P., Mejstrikova H., Melcova R., Michalkova H., Ryznarova I., Drastichova I., Hasalikova E., Hucko R., Jakub S., Janacova M., Kilmkova M., Parizkova M., Redrova M., Ruskova P.P., Sieber C.C., Auerswald T., Engel C., Franke A., Freibergen E., Freiheit U., Gotthardt S., Kampe K., Kob R., Kokott C., Kraska C., Meyer C., Reith V., Rempe H., Schoene D., Sieber G., Zielinski K., Anker S.D., Ebner N., Grutz R., von Haehling S., Schols A.M.W.J., Gosker H., Huysmans S., Quaaden S., Schols J.M., Smeets N., Stevens P., van de Bool C., Weling C., Strandberg T., Jyvakorpi S., Hallikas K., Herranen M., Huusko T., Hytonen L., Ikonen K., Karppi-Sjoblom A., Karvinen K., Kayhty M., Kindsted T., Landstrom E., Leirimaa S., Pitkala K., Punkka A., Saavalainen A.-M., Salo T., Sepa M., Sohlberg K., Vaatamoinen E., Venalainen S., Vanhanen H., Vellas B., Van Kan G.A., Biville V., Brigitte L., Cervera C., Cesari M., Champarnaud M., Cluzan C., Croizet M., Dardenne S., Dorard M., Dupuy C., Durand E., Faisant C., Fougere B., Girard P., Guyonnet S., Hoogendijk E., Mauroux R., Milhet A., Montel S., Ousset P.-J., Teguo M.T., Teysseyre B., Andrieu S., Blasimme A., Dray C., Rial-Sebbag E., Valet P., Dantoine T., Cardinaud N., Castelli M., Charenton-Blavignac M., Ciccolari-Micaldi C., Gayot C., Laubarie-Mouriet C., Marchesseau D., Mergans T., Nguyen T.B., Papon A., Ribet J., Saulinier I., Tchalla A., Rapp T., Sirven N., Skalska A., Blaszcyk E., Cwynar M., Czesak J., Fatyga P., Fedyk-Lukasik M., Grodzicki T., Jamrozik P., Janusz Z., Klimek E., Komoniewska S., Kret M., Ozog M., Parnicka A., Petitjean K., Pietrzyk A., Skalska-Dulinska B., Starzyk D., Szczerbinska K., Witkiewicz B., Wlodarczyk A., Sinclair A., Harris S., Ogborne A., Ritchie S., Sinclair C., Sinclair H., Bellary S., Worthington H., Derejczyk J., Roller-Wirnsberger R., Jonsson P., Bordes P., Arnaud S., Asbrand C., Bejuit R., Durand S., Flechsenhar K., Joly F., Lain R.L., Moncharmont M., Msihid J., Ndja A., Riche B., Weber A.C., Yuan J., Roubenoff R., Kortebein P., Miller R.R., Gorostiaga C., Belissa-Mathiot P., Hu H., Laigle L., Melchor I.M., Russel A., Bennecky M., Haws T., Joshi A., Philpott K., Walker A., Zia G., Giorgi S.D., Feletti L., Marchioro E., Mocci F., Varesio M.G., Cesario A., Cabin B., de Boer W.P., Ignaszewski C., Klingmann I., Vollenbroek-Hutten M., Hermens T., Jansen-Kosterink S., Tabak M., Blandin P., Coutard L., Lenzotti A.-M., Mokhtari H., Rodon N., Epidemiology and Data Science, APH - Aging & Later Life, and APH - Quality of Care

Subjects
0301 basic medicine, Gerontology, Sarcopenia, [SDV]Life Sciences [q-bio], Population, PROTEIN, RECOMMENDATIONS, law.invention, SUPPLEMENTATION, 03 medical and health sciences, 0302 clinical medicine, Randomized controlled trial, law, Intervention (counseling), Cultural diversity, medicine, Nutrition counselling, Nutrition intervention, Humans, 030212 general & internal medicine, Medical prescription, education, Exercise, Aged, 2. Zero hunger, education.field_of_study, 030109 nutrition & dietetics, Frailty, business.industry, Settore MED/09 - MEDICINA INTERNA, ADULTS, medicine.disease, mobility, 3. Good health, Feasibility Studie, Malnutrition, SPRINTT, resistance exercise, muscle mass, Protein intake, 3121 General medicine, internal medicine and other clinical medicine, Feasibility Studies, Energy intake, Independent Living, business, Nutrition counseling, Research Paper, Human
Abstract

Aim To describe the methods and feasibility of the nutritional intervention carried out within the SPRINTT Randomized cotrolled trial. We also illustrate how nutrition interventionists identified participants at risk of malnutrition and the lessons learnt from the nutrition intervention. Findings SPRINTT nutrition intervention was well-received by the majority of the participants. It was mainly carried out using tailored nutrition counselling, but also other means of delivering the intervention were successfully used. Compared with a standard nutrition prescription, an individualized protocol to diagnose malnutrition and follow-up by tailored nutrition counselling helped achieve nutritional targets more effectively in spite of diversity of population in nutritional habits and in some cases reluctance to accept changes. Message The SPRINTT nutrition intervention was feasible and allowed flexibility to the varying needs and cultural differences of this heterogeneous population of frail, older Europeans. It may serve as a model to educate and improve nutrition among community-dwelling older people at risk of mobility limitations. Supplementary Information The online version contains supplementary material available at 10.1007/s41999-020-00438-4., Background The “Sarcopenia and Physical Frailty in Older People: Multicomponent Treatment Strategies” (SPRINTT) project sponsored a multi-center randomized controlled trial (RCT) with the objective to determine the effect of physical activity and nutrition intervention for prevention of mobility disability in community-dwelling frail older Europeans. We describe here the design and feasibility of the SPRINTT nutrition intervention, including techniques used by nutrition interventionists to identify those at risk of malnutrition and to carry out the nutrition intervention. Methods SPRINTT RCT recruited older adults (≥ 70 years) from 11 European countries. Eligible participants (n = 1517) had functional limitations measured with Short Physical Performance Battery (SPPB score 3–9) and low muscle mass as determined by DXA scans, but were able to walk 400 m without assistance within 15 min. Participants were followed up for up to 3 years. The nutrition intervention was carried out mainly by individual nutrition counseling. Nutrition goals included achieving a daily protein intake of 1.0–1.2 g/kg body weight, energy intake of 25–30 kcal/kg of body weight/day, and serum vitamin D concentration ≥ 75 mmol/L. Survey on the method strategies and feasibility of the nutrition intervention was sent to all nutrition interventionists of the 16 SPRINTT study sites. Results Nutrition interventionists from all study sites responded to the survey. All responders found that the SPRINTT nutrition intervention was feasible for the target population, and it was well received by the majority. The identification of participants at nutritional risk was accomplished by combining information from interviews, questionnaires, clinical and laboratory data. Although the nutrition intervention was mainly carried out using individual nutritional counselling, other assisting methods were used as appropriate. Conclusion The SPRINTT nutrition intervention was feasible and able to adapt flexibly to varying needs of this heterogeneous population. The procedures adopted to identify older adults at risk of malnutrition and to design the appropriate intervention may serve as a model to deliver nutrition intervention for community-dwelling older people with mobility limitations. Supplementary Information The online version contains supplementary material available at 10.1007/s41999-020-00438-4.

Published
2021

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