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1.
PLoS One ; 15(5): e0232447, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32379781

RESUMO

BACKGROUND: Malnutrition linked to noncommunicable diseases presents major health problems across Europe. The World Health Organisation encourages countries to conduct national dietary surveys to obtain data to inform public health policies designed to prevent noncommunicable diseases. METHODS: Data on 27334 participants aged 19-64y were harmonised and pooled across national dietary survey datasets from 12 countries across the WHO European Region. Weighted mean nutrient intakes were age-standardised using the Eurostat 2013 European Standard Population. Associations between country-level Gross Domestic Product (GDP) and key nutrients and nutrient densities were investigated using linear regression. The potential mitigating influence of participant-level educational status was explored. FINDINGS: Higher GDP was positively associated with total sugar intake (5·0% energy for each 10% increase in GDP, 95% CI 0·6, 9·3). Scandinavian countries had the highest vitamin D intakes. Participants with higher educational status had better nutritional intakes, particularly within lower GDP countries. A 10% higher GDP was associated with lower total fat intakes (-0·2% energy, 95% CI -0·3, -0·1) and higher daily total folate intakes (14µg, 95% CI 12, 16) in higher educated individuals. INTERPRETATION: Lower income countries and lower education groups had poorer diet, particularly for micronutrients. We demonstrate for the first time that higher educational status appeared to have a mitigating effect on poorer diet in lower income countries. It illustrates the feasibility and value of harmonising national dietary survey data to inform European policy regarding access to healthy diets, particularly in disadvantaged groups. It specifically highlights the need for strong policies supporting nutritional intakes, prioritising lower education groups and lower income countries.


Assuntos
Dieta , Desnutrição/epidemiologia , Fatores Socioeconômicos , Adulto , Inquéritos sobre Dietas , Dieta Saudável , Escolaridade , Ingestão de Energia , Europa (Continente)/epidemiologia , Feminino , Humanos , Renda , Modelos Lineares , Masculino , Desnutrição/prevenção & controle , Micronutrientes/administração & dosagem , Pessoa de Meia-Idade , Análise Multivariada , Estado Nutricional , Pobreza , Adulto Jovem
2.
Eur J Nutr ; 59(7): 2893-2904, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31701336

RESUMO

PURPOSE: Advanced glycation end products (AGEs) can be formed in foods by the reaction of reducing sugars with proteins, and have been shown to induce insulin resistance and obesity in experimental studies. We examined the association between dietary AGEs intake and changes in body weight in adults over an average of 5 years of follow-up. METHODS: A total of 255,170 participants aged 25-70 years were recruited in ten European countries (1992-2000) in the PANACEA study (Physical Activity, Nutrition, Alcohol, Cessation of smoking, Eating out of home in relation to Anthropometry), a sub-cohort of the EPIC (European Prospective Investigation into Cancer and Nutrition). Body weight was measured at recruitment and self-reported between 2 and 11 years later depending on the study center. A reference database for AGEs was used containing UPLC-MS/MS-measured Nε-(carboxymethyl)-lysine (CML), Nε-(1-carboxyethyl)-lysine (CEL), and Nδ-(5-hydro-5-methyl-4-imidazolon-2-yl)-ornithine (MG-H1) in 200 common European foods. This reference database was matched to foods and decomposed recipes obtained from country-specific validated dietary questionnaires in EPIC and intake levels of CEL, CML, and MG-H1 were estimated. Associations between dietary AGEs intake and body weight change were estimated separately for each of the three AGEs using multilevel mixed linear regression models with center as random effect and dietary AGEs intake and relevant confounders as fixed effects. RESULTS: A one-SD increment in CEL intake was associated with 0.111 kg (95% CI 0.087-0.135) additional weight gain over 5 years. The corresponding additional weight gain for CML and MG-H1 was 0.065 kg (0.041-0.089) and 0.034 kg (0.012, 0.057), respectively. The top six food groups contributing to AGEs intake, with varying proportions across the AGEs, were cereals/cereal products, meat/processed meat, cakes/biscuits, dairy, sugar and confectionary, and fish/shellfish. CONCLUSION: In this study of European adults, higher intakes of AGEs were associated with marginally greater weight gain over an average of 5 years of follow-up.


Assuntos
Peso Corporal , Dieta , Produtos Finais de Glicação Avançada , Adulto , Cromatografia Líquida , Europa (Continente) , Humanos , Estudos Prospectivos , Espectrometria de Massas em Tandem
3.
J Hand Surg Eur Vol ; 42(6): 605-609, 2017 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-28193097

RESUMO

The purpose of this study was to determine the alignment of the normal trapeziometacarpal joint and any changes in its alignment with age. Radial, dorsal and dorsoradial subluxation were measured on computerized tomographic scans in 50 joints of 50 adults aged 18 to 62. There were statistically significant correlations between increasing age and dorsoradial subluxation but no significant correlation with dorsal and radial subluxation. Significant dorsoradial subluxation occurs after 46 years of age in the normal trapeziometacarpal joint. A mean dorsoradial subluxation of 21% (range 14%-30%) can be considered normal in this age group.


Assuntos
Articulações Carpometacarpais/diagnóstico por imagem , Articulações Carpometacarpais/fisiologia , Luxações Articulares/diagnóstico por imagem , Amplitude de Movimento Articular/fisiologia , Trapézio/diagnóstico por imagem , Trapézio/fisiologia , Adolescente , Adulto , Fatores Etários , Feminino , Humanos , Luxações Articulares/fisiopatologia , Masculino , Pessoa de Meia-Idade , Valores de Referência , Tomografia Computadorizada por Raios X , Adulto Jovem
4.
EJNMMI Res ; 6(Suppl 1): 32, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-27090254

RESUMO

TABLE OF CONTENTS: A1 68Ga-PSMA PET/CT in staging and restaging of Prostate Cancer Patients: comparative study with 18F-Choline PET/CTW Langsteger, A Rezaee, W Loidl, HS Geinitz, F Fitz, M Steinmair, G Broinger, L Pallwien-Prettner, M BeheshtiA2 F18 Choline PET - CT: an accurate diagnostic tool for the detection of parathyroid adenoma?L Imamovic, M Beheshti, G Rendl, D Hackl, O Tsybrovsky, M Steinmair, K Emmanuel, F Moinfar, C Pirich, W LangstegerA3 [18F]Fluoro-DOPA-PET/CT in the primary diagnosis of medullary thyroid carcinomaA Bytyqi, G Karanikas, M Mayerhöfer, O Koperek, B Niederle, M HartenbachA4 Variations of clinical PET/MR operations: An international survey on the clinical utilization of PET/MRIT Beyer, K Herrmann, J CzerninA5 Standard Dixon-based attenuation correction in combined PET/MRI: Reproducibility and the possibility of Lean body mass estimationI Rausch, P Rust, MD DiFranco, M Lassen, A Stadlbauer, ME Mayerhöfer, M Hartenbach, M Hacker, T BeyerA6 High resolution digital FDG PET/MRI imaging for assessment of ACL graft viabilityK Binzel, R Magnussen, W Wei, MU Knopp, DC Flanigan, C Kaeding, MV KnoppA7 Using pre-existing hematotoxicity as predictor for severe side effects and number of treatment cycles of Xofigo therapyA Leisser, M Nejabat, M Hartenbach, G Kramer, M Krainer, M Hacker, A HaugA8 QDOSE - comprehensive software solution for internal dose assessmentWencke Lehnert, Karl Schmidt, Sharok Kimiaei, Marcus Bronzel, Andreas KlugeA9 Clinical impact of Time-of-Flight on next-generation digital PET imaging of Yttrium-90 radioactivity following liver radioembolizationCL Wright, K Binzel, J Zhang, Evan Wuthrick, Piotr Maniawski, MV KnoppA10 Snakes in patients! Lessons learned from programming active contours for automated organ segmentationM Blaickner, E Rados, A Huber, M Dulovits, H Kulkarni, S Wiessalla, C Schuchardt, RP Baum, B Knäusl, D GeorgA11 Influence of a genetic polymorphism on brain uptake of the dual ABCB1/ABCG2 substrate [11C]tariquidarM Bauer, B Wulkersdorfer, W Wadsak, C Philippe, H Haslacher, M Zeitlinger, O LangerA12 Outcome prediction of temporal lobe epilepsy surgery from P-glycoprotein activity. Pooled analysis of (R)-[11C]-verapamil PET data from two European centresM Bauer, M Feldmann, R Karch, W Wadsak, M Zeitlinger, MJ Koepp, M-C Asselin, E Pataraia, O LangerA13 In-vitro and in-vivo characterization of [18F]FE@SNAP and derivatives for the visualization of the melanin concentrating hormone receptor 1M Zeilinger, C Philippe, M Dumanic, F Pichler, J Pilz, M Hacker, W Wadsak, M MitterhauserA14 Reducing time in quality control leads to higher specific radioactivity of short-lived radiotracersL Nics, B Steiner, M Hacker, M Mitterhauser, W WadsakA15 In vitro 11C-erlotinib binding experiments in cancer cell lines with epidermal growth factor receptor mutationsA Traxl, Thomas Wanek, Kushtrim Kryeziu, Severin Mairinger, Johann Stanek, Walter Berger, Claudia Kuntner, Oliver LangerA16 7-[11C]methyl-6-bromopurine, a PET tracer to measure brain Mrp1 function: radiosynthesis and first PET evaluation in miceS Mairinger, T Wanek, A Traxl, M Krohn, J Stanek, T Filip, M Sauberer, C Kuntner, J Pahnke, O LangerA17 18F labeled azidoglucose derivatives as "click" agents for pretargeted PET imagingD Svatunek, C Denk, M Wilkovitsch, T Wanek, T Filip, C Kuntner-Hannes, J Fröhlich, H MikulaA18 Bioorthogonal tools for PET imaging: development of radiolabeled 1,2,4,5-TetrazinesC Denk, D Svatunek, T Wanek, S Mairinger, J Stanek, T Filip, J Fröhlich, H Mikula, C Kuntner-HannesA19 Preclinical evaluation of [18F]FE@SUPPY- a new PET-tracer for oncologyT Balber, J Singer, J Fazekas, C Rami-Mark, N Berroterán-Infante, E Jensen-Jarolim, W Wadsak, M Hacker, H Viernstein, M MitterhauserA20 Investigation of Small [18F]-Fluoroalkylazides for Rapid Radiolabeling and In Vivo Click ChemistryC Denk, D Svatunek, B Sohr, H Mikula, J Fröhlich, T Wanek, C Kuntner-Hannes, T FilipA21 Microfluidic 68Ga-radiolabeling of PSMA-HBED-CC using a flow-through reactorS Pfaff, C Philippe, M Mitterhauser, M Hartenbach, M Hacker, W WadsakA22 Influence of 24-nor-ursodeoxycholic acid on hepatic disposition of [18F]ciprofloxacin measured with positron emission tomographyT Wanek, E Halilbasic, M Visentin, S Mairinger, B Stieger, C Kuntner, M Trauner, O LangerA23 Automated 18F-flumazenil production using chemically resistant disposable cassettesP Lam, M Aistleitner, R Eichinger, C ArtnerA24 Similarities and differences in the synthesis and quality control of 177Lu-DOTA-TATE, 177Lu -HA-DOTA-TATE and 177Lu-DOTA-PSMA (PSMA-617)H Eidherr, C Vraka, A Haug, M Mitterhauser, L Nics, M Hartenbach, M Hacker, W WadsakA25 68Ga- and 177Lu-labelling of PSMA-617H Kvaternik, R Müller, D Hausberger, C Zink, RM AignerA26 Radiolabelling of liposomes with 67Ga and biodistribution studies after administration by an aerosol inhalation systemU Cossío, M Asensio, A Montes, S Akhtar, Y te Welscher, R van Nostrum, V Gómez-Vallejo, J LlopA27 Fully automated quantification of DaTscan SPECT: Integration of age and gender differencesF VandeVyver, T Barclay, N Lippens, M TrochA28 Lesion-to-background ratio in co-registered 18F-FET PET/MR imaging - is it a valuable tool to differentiate between low grade and high grade brain tumor?L Hehenwarter, B Egger, J Holzmannhofer, M Rodrigues-Radischat, C PirichA29 [11C]-methionine PET in gliomas - a retrospective data analysis of 166 patientsN Pötsch, I Rausch, D Wilhelm, M Weber, J Furtner, G Karanikas, A Wöhrer, M Mitterhauser, M Hacker, T Traub-WeidingerA30 18F-Fluorocholine versus 18F-Fluorodeoxyglucose for PET/CT imaging in patients with relapsed or progressive multiple myeloma: a pilot studyT Cassou-Mounat, S Balogova, V Nataf, M Calzada, V Huchet, K Kerrou, J-Y Devaux, M Mohty, L Garderet, J-N TalbotA31 Prognostic benefit of additional SPECT/CT in sentinel lymph node mapping of breast cancer patientsS Stanzel, G Pregartner, T Schwarz, V Bjelic-Radisic, B Liegl-Atzwanger, R AignerA32 Evaluation of diagnostic value of TOF-18F-FDG PET/CT in patients with suspected pancreatic cancerS Stanzel, F Quehenberger, RM AignerA33 New quantification method for diagnosis of primary hyperpatahyroidism lesions and differential diagnosis vs thyropid nodular disease in dynamic scintigraphyA Koljevic Markovic, Milica Jankovic, V Miler Jerkovic, M Paskas, G Pupic, R Dzodic, D PopovicA34 A rare case of diffuse pancreatic involvement in patient with merkel cell carcinoma detected by 18F-FDGMC Fornito, D FamiliariA35 TSH-stimulated 18F-FDG PET/CT in the diagnosis of recurrent/metastatic radioiodine-negative differentiated thyroid carcinomas in patients with various thyroglobuline levelsP Koranda, H Polzerová, I Metelková, L Henzlová, R Formánek, E Buriánková, M KamínekA36 Breast Dose from lactation following I131 treatmentWH Thomson, C LewisA37 A new concept for performing SeHCAT studies with the gamma cameraWH Thomson, J O'Brien, G James, A NotghiA38 Whole body F-18-FDG-PET and tuberculosis: sensitivity compared to x-ray-CTH Huber, I Stelzmüller, R Wunn, M Mandl, F Fellner, B Lamprecht, M GabrielA39 Emerging role 18F-FDG PET-CT in the diagnosis and follow-up of the infection in heartware ventricular assist system (HVAD)MC Fornito, G LeonardiA40 Validation of Poisson resampling softwareWH Thomson, J O'Brien, G JamesA41 Protection of PET nuclear medicine personnel: problems in satisfying dose limit requirementsJ Hudzietzová, J Sabol, M Fülöp.

5.
Benef Microbes ; 6(4): 431-9, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25609655

RESUMO

Genetics, lifestyle, and dietary habits contribute to metabolic syndrome, but also an altered gut microbiota has been identified. Based on this knowledge it is suggested that host bacterial composition tends to change in response to dietary factors and weight loss. The aim of this study was to identify bacteria affecting host metabolism in obesity during weight loss and to correlate them with changes of the body composition obtained from bioelectrical impedance analysis (BIA). We recruited obese individuals receiving a dietary intervention according DACH (German, Austrian, and Swiss Society of Nutrition) reference values and guidelines for 'prevention and therapy of obesity' of DAG e.V., DDG, DGE e.V., and DGEM e.V. over three months. Faecal microbiota and BIA measurements were conducted at three time points, before, during, and after the intervention. Gut microbiota was analysed on the basis of 16S rDNA with quantitative real time PCR. Additionally, a food frequency questionnaire with questions to nutritional behaviour, lifestyle, and physical activity was administered before intervention. After weight reduction, obese individuals showed a significant increase of total bacterial abundance. The ratio of Firmicutes/Bacteroidetes significantly decreased during intervention. Lactobacilli significantly increased between the first and the second time point. These differences also correlated with differences in weight percentage. During the intervention period Clostridium cluster IV increased significantly between the second and the third time point. In contrast Clostridium cluster XIVa showed a decreased abundance. The dominant butyrate producer, Faecalibacterium prausnitzii, significantly increased as did the abundance of the butyryl-CoA: acetate CoA-transferase gene. Archaea and Akkermansia were significantly more prevalent after weight reduction. Our results show a clear difference in the gut bacterial composition before and after dietary intervention with a rapid change in gut microbial composition after a few weeks, but also indicate that a major shift requires long term dietary treatment.


Assuntos
Tecido Adiposo/anatomia & histologia , Archaea/classificação , Bactérias/classificação , Microbioma Gastrointestinal , Redução de Peso , Adulto , Archaea/genética , Bactérias/genética , DNA Arqueal/química , DNA Arqueal/genética , DNA Bacteriano/química , DNA Bacteriano/genética , DNA Ribossômico/química , DNA Ribossômico/genética , Impedância Elétrica , Fezes/microbiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , RNA Ribossômico 16S/genética , Análise de Sequência de DNA
6.
Appetite ; 71: 22-31, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23891557

RESUMO

Salt reduction is important for reducing hypertension and the risk of cardiovascular events, nevertheless worldwide salt intakes are above recommendations. Consequently strategies to reduce intake are required, however these require an understanding of salt intake behaviours to be effective. As limited information is available on this, an international study was conducted to derive knowledge on salt intake and associated behaviours in the general population. An online cohort was recruited consisting of a representative sample from Germany, Austria, United States of America, Hungary, India, China, South Africa, and Brazil (n=6987; aged 18-65 years; age and gender stratified). Participants completed a comprehensive web-based questionnaire on salt intake and associated behaviours. While salt reduction was seen to be healthy and important, over one third of participants were not interested in salt reduction and the majority were unaware of recommendations. Salt intake was largely underestimated and people were unaware of the main dietary sources of salt. Participants saw themselves as mainly responsible for their salt intake, but also acknowledged the roles of others. Additionally, they wanted to learn more about why salt was bad for health and what the main sources in the diet were. As such, strategies to reduce salt intake must raise interest in engaging in salt reduction through improving understanding of intake levels and dietary sources of salt. Moreover, while some aspects of salt reduction can be globally implemented, local tailoring is required to match level of interest in salt reduction. These findings provide unique insights into issues surrounding salt reduction and should be used to develop effective salt reduction strategies and/or policies.


Assuntos
Dieta , Comportamento Alimentar , Cloreto de Sódio na Dieta/administração & dosagem , Adolescente , Adulto , Idoso , Comportamento de Escolha , Estudos de Coortes , Feminino , Preferências Alimentares , Promoção da Saúde , Humanos , Hipertensão/prevenção & controle , Internacionalidade , Modelos Lineares , Masculino , Pessoa de Meia-Idade , Educação de Pacientes como Assunto , Fatores Socioeconômicos , Inquéritos e Questionários , Adulto Jovem
7.
J Anim Physiol Anim Nutr (Berl) ; 97 Suppl 1: 1-5, 2013 May.
Artigo em Inglês | MEDLINE | ID: mdl-23639011

RESUMO

Faeces quality and composition are both of interest to veterinary practitioners dealing with pigs' health and disturbances in the alimentary tract, especially in free-range situations. In the Mediterranean basin, acorns are used as a starch source for fattening pigs, yet little information is available on how that affects faecal quality and digestibility. Therefore, a combined diet containing ripe hulled shredded acorns vs. a pelleted complete diet for finishers was evaluated for the digestibility and faecal consistency. The trial involved eight crossbred pigs, and a matched-pair approach was used to divide animals into two groups, which were fed with two different diets: acorns group (A): n = 4, 70% ripe hulled shredded acorns + 30% pelleted complete diet combined, as fed; control group (C): n = 4, 100% pelleted complete feed. The pigs were housed individually and fed the experimental diets for 8 days; daily feed intake and faeces amounts were recorded and faeces quality assessed. The digestibility of organic matter (OM) and starch of the two diets, as well as of pure acorns, were calculated and compared. Daily feed consumption was significantly higher in group A, but the mean dry matter intake (DMI) per pig was similar in both groups. Dark, firm and consistent faeces were reported for each pig from group A in comparison with group B, whose faeces were paler and softer. Digestibility of OM and starch were lower in group A than in group B (67.8 ± 3.4 vs. 83.9 ± 1.1 and 82.5 ± 3.4 vs. 92.3 ± 2.1 respectively): total tract digestibility of native starch from pure acorns was calculated at 77%. The peculiar consistency of faeces was related to macroscopic acorn hulls, constantly detected in the faeces of all animals sampled in group A.


Assuntos
Ração Animal/análise , Digestão/fisiologia , Fezes/química , Quercus , Sementes , Suínos/fisiologia , Fenômenos Fisiológicos da Nutrição Animal , Animais , Dieta/veterinária
8.
Hand Surg ; 14(2-3): 131-4, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-20135741

RESUMO

Infective tenosynovitis is an uncommon cause of a common condition namely carpal tunnel syndrome. Following an extensive review of the literature, we report what we understand to be the first published case of Mycobacterium kansasii (M. kansasii) causing tenosynovitis of flexor tendons resulting in carpal tunnel syndrome in Australia. Our case highlights the need for a high level of suspension, histology and appropriate culture with specific microbiological tests for atypical mycobacteria where tenosynovitis is present at carpal tunnel surgery, even in patients who do not appear to have risk factors.


Assuntos
Síndrome do Túnel Carpal/etiologia , Infecções por Mycobacterium não Tuberculosas/diagnóstico , Mycobacterium kansasii/isolamento & purificação , Tenossinovite/microbiologia , Antibacterianos/uso terapêutico , Claritromicina/uso terapêutico , DNA Bacteriano/genética , Etambutol/uso terapêutico , Humanos , Masculino , Pessoa de Meia-Idade , Infecções por Mycobacterium não Tuberculosas/complicações , Infecções por Mycobacterium não Tuberculosas/tratamento farmacológico , Mycobacterium kansasii/genética , Exposição Ocupacional , Rifampina/uso terapêutico , Rios/microbiologia , Tenossinovite/complicações
9.
Knee Surg Sports Traumatol Arthrosc ; 16(4): 370-2, 2008 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-18193197

RESUMO

We describe the use of the Leeds-Keio ligament to reconstruct a neglected quadriceps tendon rupture following revision knee arthroplasty. The Leeds-Keio ligament has been used in the treatment of patellar tendon ruptures complicating primary knee arthroplasty with good result--but may, as this report shows, also be successfully applied to address deficiencies of the quadriceps tendon in the revision setting, with continued good function for 2 years.


Assuntos
Artroplastia do Joelho , Próteses e Implantes , Traumatismos dos Tendões/cirurgia , Idoso de 80 Anos ou mais , Feminino , Humanos , Poliésteres , Reoperação , Ruptura
10.
Clin Orthop Relat Res ; 457: 220-6, 2007 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-17146367

RESUMO

Tissue engineering approaches for bone blocks previously have used synthetic scaffolds. Bone graft (allograft) is used to fill bone defects, but standard processing can lessen this scaffold's osteoinductive potential. We wanted to test if allografts could be used to produce a viable bone block using mesenchymal stem cells. We hypothesized that mesenchymal stem cells differentiate into osteoblasts producing extracellular matrix when cultured on allografts. We also hypothesized that the addition of osteogenic supplements would increase the rate of differentiation. To test these hypotheses, mesenchymal stem cells were isolated from bone marrow aspirated from 10 patients and cultured on allografts from five donors (Group 2), producing 50 samples. This was repeated on allografts heat-treated to denature bioactive proteins (Group 1), and repeated again on allografts to which osteogenic supplements (Group 3) were added. Group 2 mesenchymal stem cells differentiated into osteoblasts producing higher levels of alkaline phosphatase, osteopontin, and Type I collagen matrix protein than Group 1. The rate of differentiation of Group 3 mesenchymal stem cells increased with the supplements. Overall, it was established that the bioactive proteins in the allograft stimulated mesenchymal stem cell differentiation into osteoblasts, with production of extracellular matrix, and that this differentiation increased with the addition of osteogenic supplements.


Assuntos
Diferenciação Celular , Células-Tronco Mesenquimais/citologia , Osteoblastos/citologia , Engenharia Tecidual/métodos , Fosfatase Alcalina/metabolismo , Células Cultivadas , Colágeno Tipo I , Humanos , Transplante de Células-Tronco Mesenquimais , Células-Tronco Mesenquimais/metabolismo , Células-Tronco Mesenquimais/ultraestrutura , Microscopia Eletrônica de Varredura , Microscopia Eletrônica de Transmissão , Osteoblastos/metabolismo , Osteoblastos/ultraestrutura , Osteopontina/metabolismo , Transplante Homólogo
11.
Ann Nutr Metab ; 50(6): 485-91, 2006.
Artigo em Inglês | MEDLINE | ID: mdl-16988496

RESUMO

BACKGROUND: A vegetarian diet is considered to promote health and longevity and reduce the risk of cardiovascular diseases and cancer. However, a vegetarian diet may be deficient in some nutrients. Exclusion of animal products in vegetarian diets may affect the status of certain B-vitamins, and further cause the rise of plasma homocysteine concentration. OBJECTIVE: The nutritional status of various B-vitamins (B(1), B(2), B(6), B(12), folic acid) and the concentration of homocysteine in blood plasma of omnivores (n = 40), vegetarians (n = 36) and vegans (n = 42) in Austria was evaluated. METHODS: The evaluation was done using the functional parameters erythrocyte transketolase (ETK), glutathione reductase (EGR) and glutamic oxaloacetic transaminase (EGOT) activation coefficients. Enzyme activity was measured photometrically. The quantity of vitamins B(1), B(2) and B(6) in urine and the concentrations of vitamin B(6) and homocysteine in plasma were determined by HPLC methods with fluorescence detection. Plasma concentration of vitamin B(12) and folic acid were measured with radioimmunoassay. RESULTS: Most of the subjects showed a satisfying vitamin B(1) status. Vegans presented a significantly lower mean plasma vitamin B(12) concentration than omnivores and vegetarians and deficiency in 2.4% of the volunteers but the highest mean value of plasma folate among the investigated groups. A deficient status of folate was found in 18% of omnivores and in approximately 10% of vegans and vegetarians. The status of riboflavin is considered to be deficient in about 10% of omnivores and vegetarians and in over 30% of vegans. According to the activation coefficient of GOT, approximately one third of all subjects showed vitamin B(6) deficiency. Elevated homocysteine concentration in plasma was observed in 66% of the vegans and about 45-50% of the omnivores and vegetarians. Vegan subjects had significantly higher mean plasma homocysteine levels than omnivores. CONCLUSION: Thiamin and folate need not be a problem in a well-planned vegan diet. Vitamins B(12) and B(2) may need attention in the strict vegan diet, especially regarding elevated homocysteine levels in plasma. Pyridoxine status appeared to be independent of the diet.


Assuntos
Dieta , Homocisteína/sangue , Complexo Vitamínico B/sangue , Deficiência de Vitaminas do Complexo B/epidemiologia , Adulto , Idoso , Consumo de Bebidas Alcoólicas/epidemiologia , Antropometria , Aspartato Aminotransferases/sangue , Áustria , Dieta Vegetariana , Comportamento Alimentar , Feminino , Ácido Fólico/sangue , Glutationa Redutase/sangue , Humanos , Hiper-Homocisteinemia/epidemiologia , Hiper-Homocisteinemia/etiologia , Masculino , Carne , Pessoa de Meia-Idade , Fosfato de Piridoxal/sangue , Ácido Piridóxico/urina , Riboflavina/sangue , Riboflavina/urina , Deficiência de Riboflavina/epidemiologia , Deficiência de Riboflavina/etiologia , Inquéritos e Questionários , Tiamina/sangue , Tiamina/urina , Transcetolase/sangue , Verduras , Vitamina B 12/sangue , Deficiência de Vitamina B 12/epidemiologia , Deficiência de Vitamina B 12/etiologia , Vitamina B 6/sangue , Deficiência de Vitaminas do Complexo B/etiologia
12.
Org Biomol Chem ; 2(21): 3067-70, 2004 Nov 07.
Artigo em Inglês | MEDLINE | ID: mdl-15505708

RESUMO

An experimental data checker has been developed that reads, analyses, and cross-correlates experimental information copied and pasted from authors' manuscripts, which will be useful for authors, referees, editors and readers of papers reporting new molecular information, and which makes possible a quantification of the accuracy of journals' data.

13.
Ann Nutr Metab ; 48(3): 156-62, 2004.
Artigo em Inglês | MEDLINE | ID: mdl-15133321

RESUMO

BACKGROUND: In recent years, new physiological functions of vitamin A have been identified, including its role in immune defense. The antioxidant potential of carotenoids is thought to account for their health benefits. The aim of this study was to investigate the concentration changes in the provitamin-A (alpha- and-beta-carotene, beta-cryptoxanthin) and of the non-provitamin-A carotenoids (lutein, zeaxanthin and lycopene) in children with acute infections. METHODS: Serum retinol and carotenoid concentrations were measured by HPLC in 45 children suffering from acute infections and in 29 healthy controls. In addition 15 healthy children collected food samples over 2 days. C-reactive protein (CRP) levels were measured by turbidimetry. RESULTS: Serum levels of beta-carotene, alpha-carotene, beta-cryptoxanthin and retinol and non-provitamin-A carotenoid lutein and zeaxanthin concentrations were significantly lower in children with infections compared to healthy controls. There were significant negative correlations between CRP levels and serum beta-carotene and retinol concentrations. The average intake of retinol equivalents was 1.1 +/- 0.6 mg/day. CONCLUSION: Serum retinol and provitamin-A as well as non-provitamin-A carotenoid concentrations were lower in children with acute phase infections compared to healthy controls. The inverse correlations between CRP and beta-carotene or retinol indicate either decreased synthesis or increased utilization of these antioxidants.


Assuntos
Antioxidantes/metabolismo , Proteína C-Reativa/análise , Carotenoides/sangue , Infecções/sangue , Vitamina A/sangue , beta Caroteno/análogos & derivados , Adolescente , Estudos de Casos e Controles , Criança , Pré-Escolar , Cromatografia Líquida de Alta Pressão/métodos , Criptoxantinas , Feminino , Humanos , Luteína/sangue , Licopeno , Masculino , Xantofilas , Zeaxantinas , beta Caroteno/sangue
14.
Int J Tuberc Lung Dis ; 7(2): 194-7, 2003 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-12588023

RESUMO

Tuberculous infection status in individuals assessed by skin injections of 5 TU PPD-S tuberculin are subject to error. Some truly infected persons may respond with a small skin induration, and some not infected with Mycobacterium tuberculosis can respond with a large induration. Rust and Thomas used data from 701,317 white US Navy recruits seen during 1961-1968 to describe induration size distributions among those infected and not infected, and to provide prevalence estimates. Here, standard errors of prevalence and induration size probabilities are presented through use of the jack-knife methodology.


Assuntos
Teste Tuberculínico/estatística & dados numéricos , Tuberculose/diagnóstico , Tuberculose/epidemiologia , Métodos Epidemiológicos , Humanos , Prevalência
15.
Emerg Med J ; 18(6): 460-1, 2001 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-11696496

RESUMO

OBJECTIVE: To investigate the contribution of alcohol ingestion to the radiological workload of an inner city accident and emergency (A&E) department. METHODS: A prospective survey of patients presenting to A&E who required radiographs was performed over a seven day period. The A&E clinician questioned patients about alcohol intake during the six hours before the onset of the presenting complaint or injury, and made an objective assessment of signs of alcohol ingestion or intoxication. An assessment was made also of the relative contribution of alcohol as a cause of patients' injuries. RESULTS: A total of 419 patients who had radiography fulfilled the inclusion criteria, and a questionnaire was completed for 351 (84%). Forty (11%) of 351 were found to have ingested alcohol. Thirty five (87%) of 40 patients who had ingested alcohol were radiographed for trauma, as compared with 171 (55%) of the 311 who had not (p<0.001). Alcohol was considered to have been causative of injury in 30% and a contributory factor in an additional 58%. Radiographs of the skull, face and jaw accounted for 18 (33%) of 55 radiographs from trauma patients who had ingested alcohol compared with 20 (9%) of 212 radiographs from those who had not (p<0.001). There was no significant difference in the proportion of abnormal radiographs between these two groups (27% of radiographs from trauma patients who had ingested alcohol compared with 23% of radiographs from those who had not, p>0.2). CONCLUSION: Patients with alcohol related injuries requiring radiography have a significant impact on the radiological workload of an A&E department, although the prevalence of alcohol ingestion detected in this study was less than expected from previous studies.


Assuntos
Consumo de Bebidas Alcoólicas , Intoxicação Alcoólica/complicações , Serviço Hospitalar de Radiologia/estatística & dados numéricos , Carga de Trabalho/estatística & dados numéricos , Ferimentos e Lesões/diagnóstico por imagem , Adulto , Consumo de Bebidas Alcoólicas/epidemiologia , Intoxicação Alcoólica/epidemiologia , Serviço Hospitalar de Emergência , Humanos , Londres/epidemiologia , Áreas de Pobreza , Estudos Prospectivos , Radiografia , Inquéritos e Questionários , Ferimentos e Lesões/etiologia
16.
Int J Vitam Nutr Res ; 71(4): 217-21, 2001 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-11582856

RESUMO

Thiamine requirements for humans are generally expressed as absolute values per day (mg/d) or in relation to total caloric intake. Limited data are available on the relation between thiamine requirements and the intake of carbohydrates. This study was performed to investigate the influence of stepwise increases of carbohydrate intake on the status of thiamine in healthy volunteers under isocaloric conditions. During an adaptation phase of four days, the carbohydrate intake of twelve healthy volunteers (6 male, 6 female) was 55% of total energy intake. During the subsequent intervention periods, carbohydrate intake was increased to 65% of total energy for four days and to 75% for another four days. Thiamine intake, total energy intake, and physical activity were kept constant throughout the study. HPLC analysis was used to measure thiamine in plasma, urine and feces. Erythrocyte transketolase activity (ETK) was determined enzymatically. During the intervention periods thiamine decreased significantly (p < 0.05) in plasma (from 19.3 +/- 3.3 to 16.4 +/- 4.0 nmol/l) as well as in urine (from 72 +/- 56 to 58 +/- 21 mumol/mol creatinine). ETK and feces content of thiamine remained unchanged. An increase of dietary carbohydrate intake from 55% to 65% and 75%, respectively, of total caloric intake for four days per period at isocaloric conditions causes a decrease of plasma and urine levels of thiamine without affecting enzyme activities.


Assuntos
Carboidratos da Dieta/administração & dosagem , Tiamina/metabolismo , Adulto , Cromatografia Líquida de Alta Pressão/métodos , Eritrócitos/enzimologia , Fezes/química , Feminino , Humanos , Masculino , Necessidades Nutricionais , Estado Nutricional , Tiamina/sangue , Tiamina/urina , Transcetolase/sangue
17.
Am J Reprod Immunol ; 46(4): 280-7, 2001 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-11642677

RESUMO

BACKGROUND: About 90% of cervical cancers and advanced cervical intraepithelial neoplasia (CIN II/III) are squamous epithelial cells with mRNA for human papillomavirus (HPV)16 and 18 and up-regulated epidermal growth factor receptor (EGF-R). Since presence of proteins rather than mRNA may be truly indicative of active infection or disease progression, establishing reliable methods for quantifying these proteins in cervical biopsies is important. METHOD: We have established an objective semi-quantitative immunofluorescent antibody assay to reliably assess the levels of HPV-E6/E7 and EGF-R proteins in the cervical biopsies from 12 normal women, five women with CIN I, 15 with CIN II/III and ten with cervical cancer. RESULTS: HPV-E6/E7 and EGF-R, when present, were specific to para-basal, basal and squamous epithelial cells (negative in stromal cells). Nine of ten women with cervical cancer and 15 (14 CIN II/III; 1 CIN I) of 20 women with CIN were positive for HPV-E6/E7. All 12 controls were HPV-negative. The controls and six women with CIN (four with CIN I) negative for HPV had low levels of EGF-R. The only exception was one woman with cervical cancer negative for HPV, with high levels of EGF-R. Levels of HPV-E6/E7 and EGF-R were significantly higher (P < 0.001 vs. controls) in women with advanced CIN II and III (P< 0.05 vs. controls in CIN I) and cervical cancer. The HPV-E6/E7 and EGF-R levels correlated significantly (r = 18.98; P < 0.001, by linear regression analysis). CONCLUSION: We have established a highly specific and sensitive semi-quantitative immunofluorescent antibody assay for measuring levels of HPV-E6/E7 proteins and EGF-R in archival cervical biopsies. Our data suggest an association between HPV-E6/E7 and EGF-R.


Assuntos
Carcinoma de Células Escamosas/metabolismo , Proteínas de Ligação a DNA , Receptores ErbB/metabolismo , Proteínas Oncogênicas Virais/metabolismo , Papillomaviridae/metabolismo , Proteínas Repressoras , Displasia do Colo do Útero/metabolismo , Neoplasias do Colo do Útero/metabolismo , Carcinoma de Células Escamosas/patologia , Colo do Útero/metabolismo , Colo do Útero/patologia , Células Epiteliais/metabolismo , Feminino , Técnica Indireta de Fluorescência para Anticorpo , Humanos , Proteínas E7 de Papillomavirus , Neoplasias do Colo do Útero/patologia , Displasia do Colo do Útero/patologia
18.
J Chem Inf Comput Sci ; 41(5): 1124-30, 2001.
Artigo em Inglês | MEDLINE | ID: mdl-11604013

RESUMO

We describe how a collection of documents expressed in XML-conforming languages such as CML and XHTML can be authenticated and validated against digital signatures which make use of established X.509 certificate technology. These can be associated either with specific nodes in the XML document or with the entire document. We illustrate this with two examples. An entire journal article expressed in XML has its individual components digitally signed by separate authors, and the collection is placed in an envelope and again signed. The second example involves using a software robot agent to acquire a collection of documents from a specified URL, to perform various operations and transformations on the content, including expressing molecules in CML, and to automatically sign the various components and deposit the result in a repository. We argue that these operations can used as components for building what we term an authenticated and semantic chemical web of trust.

19.
J Chem Inf Comput Sci ; 41(5): 1113-23, 2001.
Artigo em Inglês | MEDLINE | ID: mdl-11604012

RESUMO

We describe the development of a structured method of representing chemistry on the World-Wide Web using an object-oriented approach to information objects. We show how a document object model (DOM) for chemistry can be constructed using as its basis Chemical Markup Language (CML). Application of the CMLDOM to the development of chemical tools is described.

20.
Eur J Nutr ; 40(2): 78-83, 2001 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-11518203

RESUMO

BACKGROUND: Previous studies have shown that cigarette smoke contains many oxidants and free radicals, which can increase lipid peroxidation. AIM OF THE STUDY: The association between smoking, food pattern, especially vitamin intake and plasma concentrations of important antioxidants, as well as lipid peroxidation products was assessed in this cross-sectional study. SUBJECTS AND METHODS: Sixty Austrian women aged 18-40 y were enrolled in the study. Twenty-nine women were allocated to the smoking group; thirty-one women served as nonsmoking controls. Plasma concentrations of alpha- and gamma-tocopherol, alpha- and beta-carotene, lycopene, cryptoxanthin, retinol, ascorbate and malondialdehyde were determined by HPLC; dietary intake and food pattern had been assessed by four 24-h dietary intake recalls and one food frequency questionnaire. RESULTS: Generally, food intake patterns were not different between smoking and nonsmoking women. But, a significantly higher intake of alcohol was observed in the smoking group (P < 0.05). Plasma ascorbic acid concentration of the smoking group did not differ from the nonsmoking women. Despite the increased utilization because of the oxidative stress in smokers, this result might be explained by the high dietary intake of vitamin C in our smoking group. Significantly lower plasma concentrations of alpha-,beta-carotene and lycopene have been partly ascribed to the enhanced metabolic turnover resulting from smoking-induced oxidative stress. Our results confirm that smoking had no effects on plasma tocopherol and plasma retinol concentrations. CONCLUSIONS: The poor supply with the carotenoids alpha-, beta-carotene and lycopene may result from the increased metabolism of antioxidants caused by oxidative stress and may be responsible for significantly higher levels of lipid peroxidation products in smokers compared to nonsmokers (P < 0.05).


Assuntos
Antioxidantes/metabolismo , Dieta , Fumar/efeitos adversos , Vitaminas/administração & dosagem , Adolescente , Adulto , Consumo de Bebidas Alcoólicas/efeitos adversos , Áustria , Estudos de Casos e Controles , Cromatografia Líquida de Alta Pressão , Estudos Transversais , Ingestão de Energia , Feminino , Humanos , Peroxidação de Lipídeos/efeitos dos fármacos , Rememoração Mental , Oxirredução , Estresse Oxidativo/fisiologia , Inquéritos e Questionários , Vitaminas/sangue
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