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Blüher S, Kromeyer-Hauschild K, Graf C, Grünewald-Funk D, Widhalm K, Korsten-Reck U, Markert J, Güssfeld C, Müller MJ, Moss A, Wabitsch M, Wiegand S. [Current Guidelines to Prevent Obesity in Childhood and Adolescence]. KLINISCHE PADIATRIE 2015; 228:1-10. [PMID: 26302179 DOI: 10.1055/s-0035-1559639] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
BACKGROUND Current guidelines for the prevention of obesity in childhood and adolescence are presented. METHODS A literature search was performed in Medline via PubMed, and appropriate studies were analysed. RESULTS Programs to prevent childhood obesity were to date mainly school-based. Effects were limited to date. Analyses tailored to different age groups show that prevention programs have the best effects in younger children (< 12 years). Evidence based recommendations for preschool- and early school age imply the need for interventions addressing parents and teachers alike. During adolescence, school-based interventions were most effective when adolescents were directly addressed. To date, obesity prevention programs have mainly focused on behavior oriented prevention. Recommendations for condition oriented prevention have been suggested by the German Alliance of Non-communicable Diseases and include one hour of physical activity at school, promotion of healthy food choices by taxing unhealthy foods, mandatory quality standards for meals at kindergarten and schools as well as a ban on unhealthy food advertisement addressing children. CONCLUSION Behavior oriented prevention programs showed hardly any or only limited effects in the long term. Certain risk groups for the development of obesity are not reached effectively by available programs. Due to the heterogeneity of available studies, universally valid conclusions cannot be drawn. The combination with condition oriented prevention, which has to counteract on an obesogenic environment, is crucial for sustainable success of future obesity prevention programs.
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Süßmann F, Seiffert L, Zherebtsov S, Mondes V, Stierle J, Arbeiter M, Plenge J, Rupp P, Peltz C, Kessel A, Trushin SA, Ahn B, Kim D, Graf C, Rühl E, Kling MF, Fennel T. Field propagation-induced directionality of carrier-envelope phase-controlled photoemission from nanospheres. Nat Commun 2015; 6:7944. [PMID: 26264422 PMCID: PMC4557130 DOI: 10.1038/ncomms8944] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2015] [Accepted: 06/27/2015] [Indexed: 12/12/2022] Open
Abstract
Near-fields of non-resonantly laser-excited nanostructures enable strong localization of ultrashort light fields and have opened novel routes to fundamentally modify and control electronic strong-field processes. Harnessing spatiotemporally tunable near-fields for the steering of sub-cycle electron dynamics may enable ultrafast optoelectronic devices and unprecedented control in the generation of attosecond electron and photon pulses. Here we utilize unsupported sub-wavelength dielectric nanospheres to generate near-fields with adjustable structure and study the resulting strong-field dynamics via photoelectron imaging. We demonstrate field propagation-induced tunability of the emission direction of fast recollision electrons up to a regime, where nonlinear charge interaction effects become dominant in the acceleration process. Our analysis supports that the timing of the recollision process remains controllable with attosecond resolution by the carrier-envelope phase, indicating the possibility to expand near-field-mediated control far into the realm of high-field phenomena. The localized enhancement of laser light in optical near-fields of nanostructures enables the steering of ultrafast electronic motion. Here, the authors employ field propagation in nanospheres to obtain directional tunability and attosecond control of near-field-induced strong-field photoemission.
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Herbst A, Kapellen T, Schober E, Graf C, Meissner T, Holl RW. Impact of regular physical activity on blood glucose control and cardiovascular risk factors in adolescents with type 2 diabetes mellitus--a multicenter study of 578 patients from 225 centres. Pediatr Diabetes 2015; 16:204-10. [PMID: 24888254 DOI: 10.1111/pedi.12144] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2013] [Revised: 03/06/2014] [Accepted: 03/06/2014] [Indexed: 01/09/2023] Open
Abstract
INTRODUCTION Regular physical activity (RPA) is a major therapeutic recommendation in children and adolescents with type 2 diabetes mellitus (T2DM). We evaluated the association between frequency of RPA and metabolic control, cardiovascular risk factors, and treatment regimes. METHODS The Pediatric Quality Initiative (DPV), including data from 225 centers in Germany and Austria, provided anonymous data of 578 patients (10-20 yr; mean 15.7 ± 2.1 yr; 61.9% girls) with T2DM. Patients were grouped by the frequency of their self-reported RPA per week: RPA 0, none; RPA 1, 1-2×/wk; RPA 2, >2×/wk. RESULTS The frequency of RPA ranged from 0 to 9×/wk (mean 1.1×/wk ±1.5). 55.7% of the patients reported no RPA (58.1% of the girls). Hemoglobin A1c (HbA1c) differed significantly among RPA groups (p < 0.002), being approximately 0.8 percentage points lower in RPA 2 compared to RPA 0. Body mass index (BMI-SDS) was higher in the groups with less frequent RPA (p < 0.00001). Multiple regression analysis revealed a negative association between RPA and HbA1c (p < 0.0001) and between RPA and BMI-SDS (p < 0.01). The association between RPA and high density lipoprotein (HDL)-cholesterol was positive (p < 0.05), while there was no association to total cholesterol, low density lipoprotein (LDL)-cholesterol or triglycerides. Approximately 80% of the patients received pharmacological treatment (oral antidiabetic drugs and/or insulin) without differences between RPA groups. CONCLUSION More than half of the adolescents with T2DM did not perform RPA. Increasing physical activity was associated with a lower HbA1c, a lower BMI-SDS, a higher HDL-cholesterol, but not with a difference in treatment regime. These results suggest that regular exercise is a justified therapeutic recommendation for children and adolescents with T2DM.
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Klein D, Manz K, Ferrari N, Strüder H, Graf C. Effects of health promotion projects in preschools on body mass index and motor abilities. J Sports Med Phys Fitness 2015; 55:103-112. [PMID: 24998611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
AIM The prevalence of obesity and motor deficits in children is on the rise in western industrialized countries. Due to the negative health related consequences, effective early preventive measures are of urgent need. In the present study the effects of the kindergarten-based low-threshold interventions "Kindergarten Mobile (KiMo)", "Ball and Pear (BP)" and "Nursery Fit (NF)" were determined. METHODS One thousand five hundred ten children (53.4% male) participated in the study (age: 4.7 ± 0.9 years, height: 108.3 ± 7.9cm, weight: 19.1 ± 3.6 kg, BMI: 16.1±1.6kg/m²). The children were divided in the groups KiMo (N.=690), BP (N.=74), NF-P (N.=95), NF-NP (N.=289) and CG (N.=362). Anthropometric data and motor abilities were assessed at T1 (baseline) and T2 (follow-up after 6 months). The interventions included an information session for parents/educators, where key guidelines for a healthy lifestyle were communicated and individual fitness passes were handed over (KiMo, NF-P, NF-NP), respectively an instructed activity lesson once per week (BP, NF-P). RESULTS The results showed a decrease of the BMI in the groups KiMo (-0.1 ± 0.6 kg/m²), NF-P (-0.1 ± 0.7 kg/m²) and NF-NP (-0.2 ± 0.6 kg/m²; each P<0.001 in comparison to the CG) and an increase in the group BP (0.1 ± 0.5 kg/m²; P=0.998 in comparison to the CG). Inconsistent results were shown in all groups regarding motor abilities. CONCLUSION To date, no evidence-based recommendations concerning the optimal procedure for health promotion at pre-school age can be concluded. It seems assured, that the entire social environment of children has to be involved in the prevention of overweight and motor deficits, including parents, educators and pediatricians.
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Ostrowski A, Nordmeyer D, Mundhenk L, Fluhr J, Graf C, Rühl E, Gruber A. Allergic contact dermatitis in mice is not affected or penetrated by ahaps-functionaliZed silica nanoparticles. J Comp Pathol 2015. [DOI: 10.1016/j.jcpa.2014.10.150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Graf C, Deakin L, Docking M, Jones J, Joshua S, McKerahan T, Ottmar M, Stevens A, Wates E, Wyatt D. Best practice guidelines on publishing ethics: a publisher's perspective, 2nd edition. Int J Clin Pract 2014; 68:1410-28. [PMID: 25329600 DOI: 10.1111/ijcp.12557] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 08/28/2014] [Indexed: 11/29/2022] Open
Abstract
Wiley has updated its publishing ethics guidelines, first published in 2006. The new guidelines provide guidance, resources and practical advice on ethical concerns that arise in academic publishing for editors, authors and researchers, among other audiences. New guidance is also included on whistle blowers, animal research, clinical research and clinical trial registration, addressing cultural differences, human rights and confidentiality. The guidelines are uniquely interdisciplinary, and were reviewed by 24 editors and experts chosen from the wide range of communities that Wiley serves. They are also published in Advanced Materials, Headache, Annals of the New York Academy of Sciences, Social Science Quarterly, and on the website http://exchanges.wiley.com/ethicsguidelines.
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Ostrowski A, Nordmeyer D, Mundhenk L, Fluhr J, Graf C, Rühl E, Gruber A. Effects of Skin Barrier Disruptions on the Penetration of Ahaps-Functionalized Silica Nanoparticles in the Mouse. J Comp Pathol 2014. [DOI: 10.1016/j.jcpa.2013.11.058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Koletzko B, Armbruster M, Bauer CP, Bös K, Cierpka M, Cremer M, Dieminger B, Flothkötter M, Graf C, Heindl I, Hellmers C, Kersting M, Krawinkel M, Plöger A, Przyrembel H, Reichert-Garschhammer E, Schäfer T, Wahn U, Vetter K, Wabitsch M, Weißenborn A, Wiegand S. Ernährung und Bewegung im Kleinkindalter. Monatsschr Kinderheilkd 2013. [DOI: 10.1007/s00112-013-3031-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Walton L, Cousens R, Graf C. What IJCP authors think about open access: 392 IJCP authors explain their preferences. Int J Clin Pract 2013; 67:1211-2. [PMID: 24025035 DOI: 10.1111/ijcp.12282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Wenning P, Kreutz T, Schmidt A, Opitz D, Graf C, Voss S, Bloch W, Brixius K. Endurance exercise alters cellular immune status and resistin concentrations in men suffering from non-insulin-dependent type 2 diabetes. Exp Clin Endocrinol Diabetes 2013; 121:475-82. [PMID: 24026829 DOI: 10.1055/s-0033-1343395] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
It has been demonstrated that alterations of adipocytokines can alter immune status in type 2 diabetes. The present study investigated changes of adipocytokine plasma concentrations and cellular immune status in overweight men, suffering from non-insulin dependent type 2 diabetes (n=14, age 61.0±8.7 years, BMI 31.1±3.5 kg/cm2). Subjects underwent a 3 months endurance exercise intervention (twice per week for up to 45 min) cycling at a heart rate corresponding to a 2 mmol/l lactate threshold. Before and after the intervention testing for adipocytokines (leptin, adiponectin, resistin) and cellular immune status (including T memory-cells and regulative T-cells) was performed by RIA and FACS accordingly.The exercise intervention improved anthropometric and metabolic parameters of all subjects. We observed a significant decline for resistin and for the CD19+ B-cells. The CD4+CD25+CD127low Treg-cells decreased, however not statistically significant. All other parameters remained unchanged.In conclusion, even though only training twice a week, the exercise affected parts of the cellular immune system as well as resistin levels in men suffering from non-insulin dependent type 2 diabetes.
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Rancan F, Nazemi B, Rautenberg S, Ryll M, Hadam S, Gao Q, Hackbarth S, Haag SF, Graf C, Rühl E, Blume-Peytavi U, Lademann J, Vogt A, Meinke MC. Ultraviolet radiation and nanoparticle induced intracellular free radicals generation measured in human keratinocytes by electron paramagnetic resonance spectroscopy. Skin Res Technol 2013; 20:182-93. [DOI: 10.1111/srt.12104] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/18/2013] [Indexed: 01/18/2023]
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Sampaio-Barros PD, Pereira IA, Hernández-Cuevas C, Berman A, Burgos-Vargas R, Gutierrez MA, Barcelos A, Chávez-Corrales JE, Moreno M, Palleiro DR, Saénz-Castro R, Stekman I, Azevedo VF, Braga-da-Silva JA, Citera G, Flores-Alvarado D, Gonçalves CR, Graf C, Nitsche A, Saavedra J, Ximenes AC, Vázquez-Mellado J, Collantes-Estevez E. An analysis of 372 patients with anterior uveitis in a large Ibero-American cohort of spondyloarthritis: the RESPONDIA Group. Clin Exp Rheumatol 2013; 31:484-489. [PMID: 23899968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2012] [Accepted: 11/05/2012] [Indexed: 06/02/2023]
Abstract
OBJECTIVES This study analysed the frequency of anterior uveitis (AU) and its correlations in a large cohort of patients with spondyloarthritis (SpA). METHODS A common protocol of investigation was prospectively applied to 2012 SpA patients in 85 centres from 10 Ibero-American countries. Clinical and demographic variables and disease indexes were investigated. Categorical variables were compared by χ2 and Fisher's exact test, and continuous variables were compared by ANOVA or Kruskal-Wallis test. A value of p<0.05 was considered significant. RESULTS AU was referred by 372 SpA patients (18.5%). AU was statistically associated with inflammatory low back pain (p<0.001), radiographic sacroiliitis (p<0.001), enthesopathies (p=0.004), urethritis/acute diarrhoea (p<0.001), balanitis (p=0.002), hip involvement (p=0.002), HLA-B27 (p=0.003), and higher C-reactive protein (p=0.001), whilst it was negatively associated with the number of painful (p=0.03) and swollen (p=0.005) peripheral joints, psoriatic arthritis (p<0.001), psoriasis (p<0.001), nail involvement (p<0.001), and dactilitis (p=0.062; trend). No association with gender, race, and indices (disease activity, functionality and quality of life) was observed. Logistic regression showed that ankylosing spondylitis (p=0.001) and HLA-B27 (p=0.083; trend) was significantly associated with AU, while extra-articular manifestations (predominantly psoriasis) were negatively associated (p=0.016). CONCLUSIONS Anterior uveitis is a frequent extra-articular manifestation in SpA patients, positively associated with axial involvement and HLA-B27 and negatively associated with peripheral involvement and psoriatic arthritis.
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Graf C, Beneke R, Bloch W, Bucksch J, Dordel S, Eiser S, Ferrari N, Koch B, Krug S, Lawrenz W, Manz K, Naul R, Oberhoffer R, Quilling E, Schulz H, Stemper T, Stibbe G, Tokarski W, Völker K, Woll A. Vorschläge zur Förderung der körperlichen Aktivität von Kindern und Jugendlichen in Deutschland. Monatsschr Kinderheilkd 2013. [DOI: 10.1007/s00112-012-2863-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Antonsson E, Bresch H, Lewinski R, Wassermann B, Leisner T, Graf C, Langer B, Rühl E. Free nanoparticles studied by soft X-rays. Chem Phys Lett 2013. [DOI: 10.1016/j.cplett.2012.11.051] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Weiss L, Graf C, Herrmann F, Salomon R, Perrenoud JJ. Intermediate geriatric care in Geneva: A 10-year experience. Eur Geriatr Med 2012. [DOI: 10.1016/j.eurger.2012.07.457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Brinkmann C, Chung N, Schmidt U, Kreutz T, Lenzen E, Schiffer T, Geisler S, Graf C, Montiel-Garcia G, Renner R, Bloch W, Brixius K. Training alters the skeletal muscle antioxidative capacity in non-insulin-dependent type 2 diabetic men. Scand J Med Sci Sports 2012; 22:462-70. [PMID: 21477162 DOI: 10.1111/j.1600-0838.2010.01273.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The present study analyzes the oxidative stress situation in the skeletal muscle of overweight/obese men suffering from non-insulin-dependent type 2 diabetes mellitus [T2DM, n=16, years=61±7, body mass index (BMI)=31±4 kg/m(2) ] and BMI-matched non-diabetic male control subjects (CON, n=7, years=53±6, BMI=30±4 kg/m(2) ). Furthermore, it investigates whether physical training can alter the skeletal muscle antioxidative capacity of T2DM patients at rest. Molecule content analyses (immunohistochemical stainings) of 8-iso-prostaglandin-F2α (8-Iso-PGF), superoxide dismutase-2 (SOD2), glutathione peroxidase-1 (GPX1), peroxiredoxin isoforms (PRDX 1-6) and heat-shock-protein-70 (HSP70) were performed in biopsies taken from the vastus lateralis muscle. Under basal conditions, 8-Iso-PGF was significantly decreased in T2DM patients (-35.7%), whereas PRDX2 and PRDX6 were significantly increased relative to CON (+82.6%; +82.3%). Differences were neither observed in SOD2 nor in GPX1 or PRDX1, 3, 4, 5 density. Regular physical activity (moderate endurance or resistance training twice a week for 3 months) did not alter PRDX1, 2, 3, 4, 6 in the skeletal muscle of T2DM patients, but significantly increased SOD2 (+65.9%), GPX1 (+62.4%), PRDX5 (+37.5%), and HSP70 (+48.5%). Overweight/obese men with non-insulin-dependent T2DM exhibit up-regulated cytosolic peroxiredoxin contents relative to BMI-matched controls. Regular training further up-regulates cytosolic and mitochondrial antioxidative enzymes in T2DM patients and improves their cellular protection systems. This may contribute to a retardation of the disease's progression.
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Samaras N, Frangos E, Forster A, Graf C, Samaras D. Back pain: A case of ivory vertebrae and ribs. Eur Geriatr Med 2012. [DOI: 10.1016/j.eurger.2012.01.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Jansch M, Stumpf P, Graf C, Rühl E, Müller R. Adsorption kinetics of plasma proteins on ultrasmall superparamagnetic iron oxide (USPIO) nanoparticles. Int J Pharm 2012; 428:125-33. [DOI: 10.1016/j.ijpharm.2012.01.060] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2011] [Revised: 01/30/2012] [Accepted: 01/31/2012] [Indexed: 10/14/2022]
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Drabik A, Büscher G, Sawicki PT, Thomas K, Graf C, Müller D, Stock S. Life prolonging of disease management programs in patients with type 2 diabetes is cost-effective. Diabetes Res Clin Pract 2012; 95:194-200. [PMID: 22004943 DOI: 10.1016/j.diabres.2011.09.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2011] [Revised: 09/15/2011] [Accepted: 09/19/2011] [Indexed: 11/26/2022]
Abstract
AIM Our objective was to examine the cost-effectiveness of disease management programs (DMPs) for type 2 diabetes mellitus (T2DM) taking into account their life prolonging effect. METHODS We compared real life costs in 19,888 propensity score matched pairs of T2DM DMP participants and T2DM patients in routine care (RC) according to sickness funds data. We estimated mean annual costs for survivors, last year of life costs for decedents, the influence of ageing on costs, incremental cost-effectiveness ratio and effects on hospitalization. RESULTS Annual costs for survivors were 3,318€ (DMP) and 3,570€ (RC). The mean costs in the last year of life were 16,911€ (DMP) and 15,763€ (RC). Ageing had a cost triggering effect for survivors (30€/36€ per year in DMP-/RC-group; p<0.001) and a cost decreasing effect in the last year of life (546€/483€ per year in DMP-/RC-group; p<0.001). The incremental cost-effectiveness ratio of the DMP vs. RC was -1396€ per life-year gained. Hospitalizations increased with age in case of survival and decreased with age in case of death but were always lower in the DMP-group. CONCLUSION Despite increase in costs due to longer life DMPs are cost-effective.
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Graf C. What IJCP authors think about open access: exploring one possible future for publishing clinical research in a general and internal medicine journal. Int J Clin Pract 2012; 66:116-8. [PMID: 22257035 PMCID: PMC3326376 DOI: 10.1111/j.1742-1241.2011.02884.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Zekry D, Frangos E, Graf C, Michel JP, Gold G, Krause KH, Herrmann FR, Vischer UM. Diabetes, comorbidities and increased long-term mortality in older patients admitted for geriatric inpatient care. DIABETES & METABOLISM 2011; 38:149-55. [PMID: 22115993 DOI: 10.1016/j.diabet.2011.10.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2011] [Revised: 10/05/2011] [Accepted: 10/05/2011] [Indexed: 12/25/2022]
Abstract
AIMS To study the specific impact of diabetes on long-term mortality in very old subjects with multiple comorbidities and functional disabilities. METHODS The prevalence of vascular disorders, global comorbidity load (cumulative illness rating scale [CIRS]) and functional disabilities (activities of daily living [ADL] and Lawton's instrumental ADL [IADL] scores) were determined according to diabetes status in a cohort of 444 patients (mean age 85.3±6.7 years; 74.0% women) admitted to our geriatric service. Also, the specific impact of diabetes on 4-year mortality was analyzed using Cox proportional-hazards models. RESULTS Diabetic patients had higher BMI scores (27.1±4.9 vs. 23.4±4.7 kg/m(2) in controls; P<0.001), and higher prevalences of hypertension (81.9% vs. 65.1%, respectively; P=0.003) and ischaemic heart disease (33.7% vs. 22.2%, respectively; P=0.033), but not of stroke and renal insufficiency. They also had more comorbidities (CIRS score excluding diabetes: 15.1±4.5 vs. 13.8±4.8, respectively; P=0.016) and functional disabilities. Diabetes was associated with mortality (HR: 1.42, 95% CI: 1.02-1.99; P=0.041) after adjusting for age, gender and BMI, and this persisted after adjusting for individual vascular comorbidities, but disappeared after adjusting for CIRS, ADL or IADL scores. CONCLUSION Diabetes was associated with 4-year mortality after adjusting for the inverse relationship between mortality and BMI. This association was better accounted for by the global comorbidity load and functional disabilities than by the individual vascular comorbidities. These findings suggest that the active management of all--rather than selected--comorbidities is the key to improving the prognosis for older diabetic patients.
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Süssmann F, Zherebtsov S, Plenge J, Johnson NG, Kübel M, Sayler AM, Mondes V, Graf C, Rühl E, Paulus GG, Schmischke D, Swrschek P, Kling MF. Single-shot velocity-map imaging of attosecond light-field control at kilohertz rate. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2011; 82:093109. [PMID: 21974575 DOI: 10.1063/1.3639333] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
High-speed, single-shot velocity-map imaging (VMI) is combined with carrier-envelope phase (CEP) tagging by a single-shot stereographic above-threshold ionization (ATI) phase-meter. The experimental setup provides a versatile tool for angle-resolved studies of the attosecond control of electrons in atoms, molecules, and nanostructures. Single-shot VMI at kHz repetition rate is realized with a highly sensitive megapixel complementary metal-oxide semiconductor camera omitting the need for additional image intensifiers. The developed camera software allows for efficient background suppression and the storage of up to 1024 events for each image in real time. The approach is demonstrated by measuring the CEP-dependence of the electron emission from ATI of Xe in strong (≈10(13) W/cm(2)) near single-cycle (4 fs) laser fields. Efficient background signal suppression with the system is illustrated for the electron emission from SiO(2) nanospheres.
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Graf C. Evaluation von Disease-Management-Programmen – am Beispiel des DMP Diabetes der BARMER. Dtsch Med Wochenschr 2011. [DOI: 10.1055/s-0031-1286093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Wehler TC, Graf C, Altherr K, Zimmermann T, Brenner W, Thüroff JW, Biesterfeld S, Gockel I, Theobald M, Galle PR, Schimanski CC. SDF1β expression in renal cell carcinoma correlates with grading and infiltration by CD8+ T-cells. Anticancer Res 2011; 31:2797-2803. [PMID: 21868522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
For several tumor entities, a significant correlation between the chemokine stromal cell-derived factor 1 (SDF1) and its receptor C-X-C chemokine receptor type 4 (CXCR4), metastasis and tumor proliferation, as well as prognosis, has been described. In this study, a series of 105 renal cell carcinoma patients were analyzed in terms of expression of SDF1α and SDF1β and infiltration by CD4+ and CD8+ T-cells and the data correlated with TNM category, grading and survival. While the splice variant SDF1α had no impact on tumor grading, T-cell invasion or overall survival, expression of SDF1β showed a significant correlation with tumor grading and also suggested a correlation with metastasis, as well as CD8+ T-cell invasion. These results indicate a potential T-cell-mediated antitumor response induced by SDF1β up-regulation. Therefore targeting the SDF1β-CXCR4 signaling pathway may be a promising means for new therapeutic strategies in advanced tumor stages.
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