8684 results
Cited 1 times since 2013 (0.1 per year)
source: EuropePMC
Applied optics,
Volume 52, Issue 10, 1 1 2013, Pages 2173-2186
Feasibility study of integral property retrieval for tropospheric aerosol from Raman lidar data using principal component analysis.
de Graaf M, Apituley A, Donovan DP
A method is introduced to derive integral properties of the aerosol size distribution, e.g., aerosol mass, from tropospheric multiwavelength Raman lidar aerosol extinction and backscatter data, using an adapted form of the principal component analysis (PCA) technique. Since the refractive index of general tropospheric aerosols is variable and aerosol types can vary within one profile, an inversion technique applied in the troposphere should account for varying aerosol refractive indices. Using P...
Abstract
Annals of translational medicine,
Volume 1, Issue 1, 1 1 2013, Pages 2
Statins reduce the risk of cancer-related mortality in cancer-diagnosed patients. A true phenomenon?
Trompet S, de Craen AJ, Jukema JW
Abstract
Journal of the American College of Cardiology,
Volume 61, Issue 13, 1 1 2013, Pages e157
Fishing in the heart: removal of a free closure device inside the left atrium.
Montero-Cabezas JM, Velázquez-Martín MT, Fernández-Casares S, Albarrán-González-Trevilla A, López-Melgar B, Centeno-Rodríguez J, Tascón-Pérez JC
Abstract
Cited 2 times since 2013 (0.2 per year)
source: EuropePMC
Netherlands heart journal : monthly journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation,
Volume 21, Issue 4, 1 1 2013, Pages 183-188
Neurocardiological differences between musicians and control subjects.
Burggraaf JL, Elffers TW, Segeth FM, Austie FM, Plug MB, Gademan MG, Maan AC, Man S, de Muynck M, Soekkha T, Simonsz A, van der Wall EE, Schalij MJ, Swenne CA
Background: Exercise training is beneficial in health and disease. Part of the training effect materialises in the brainstem due to the exercise-associated somatosensory nerve traffic. Because active music making also involves somatosensory nerve traffic, we hypothesised that this will have training effects resembling those of physical exercise. Methods: We compared two groups of healthy, young subjects between 18 and 30 years: 25 music students (13/12 male/female, group M) and 28 controls (12/1...
Abstract
Cited 6 times since 2013 (0.5 per year)
source: EuropePMC
The Netherlands journal of medicine,
Volume 71, Issue 3, 1 1 2013, Pages 145-152
A clinical approach to pharmacogenetics.
de Graaff LC, van Schaik RH, van Gelder T
Taking into account the high frequency of adverse drug reactions (ADRs) in the clinic and taking into account the growing knowledge of the genetic mechanisms underlying some of these ADRs, we believe that every clinician should know at least the basic principles of pharmacogenetics. However, our experience is that many clinicians are unaware of the potential contribution of pharmacogenetic testing and have not implemented this new modality in their daily practice. We present a case of Stevens-Jo...
Abstract
Cited 2 times since 2013 (0.2 per year)
source: EuropePMC
Cyberpsychology, behavior and social networking,
Volume 16, Issue 4, 1 1 2013, Pages 309-314
Exploring the role of computers in sex and relationship education within British families.
Turnbull T, van Schaik P, van Wersch A
In this study, we aimed to identify the impact that computers can have in relation to sex and relationship education, as well as to provide a communication model that can be used within British families. We used a mixed-methods approach to explore the factors that influence communication of sexual matters within British families. Twenty families from the northeast of England were recruited through purposive sampling. First, semistructured interviews were conducted to identify how sexual matters...
Abstract
Cited 63 times since 2013 (5.2 per year)
source: EuropePMC
PloS one,
Volume 8, Issue 3, 29 5 2013, Pages e59697
Cardioprotective properties of omentin-1 in type 2 diabetes: evidence from clinical and in vitro studies.
Greulich S, Chen WJ, Maxhera B, Rijzewijk LJ, van der Meer RW, Jonker JT, Mueller H, de Wiza DH, Floerke RR, Smiris K, Lamb HJ, de Roos A, Bax JJ, Romijn JA, Smit JW, Akhyari P, Lichtenberg A, Eckel J, Diamant M, Ouwens DM
Context: Adipokines are linked to the development of cardiovascular dysfunction in type 2 diabetes (DM2). In DM2-patients, circulating levels of omentin-1, an adipokine preferentially expressed in epicardial adipose tissue, are decreased. This study investigated whether omentin-1 has a cardioprotective function. Methods: Omentin-1 levels in plasma and cardiac fat depots were determined in DM2-patients versus controls. Moreover, the relation between omentin-1 levels and cardiac function was exami...
Abstract
Cited 99 times since 2013 (8.1 per year)
source: EuropePMC
Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association,
Volume 28, Issue 5, 29 5 2013, Pages 1085-1092
Arteriovenous access failure: more than just intimal hyperplasia?
Rothuizen TC, Wong C, Quax PH, van Zonneveld AJ, Rabelink TJ, Rotmans JI
Haemodialysis vascular access patency is severely compromised by fistula non-maturation and access stenosis. Intimal hyperplasia (IH) is considered the culprit lesion in failed fistulas, resulting in luminal narrowing and stenosis. This review focuses on the biology and pathophysiology of fistula failure and highlights not only the classically associated IH but also some relatively neglected but potentially important contributors such as inadequate outward remodelling. In addition, the complex p...
Abstract
Cited 49 times since 2013 (4 per year)
source: EuropePMC
Journal of neurology, neurosurgery, and psychiatry,
Volume 84, Issue 8, 28 4 2013, Pages 859-861
Serum IgG levels in IV immunoglobulin treated chronic inflammatory demyelinating polyneuropathy.
Kuitwaard K, van Doorn PA, Vermeulen M, van den Berg LH, Brusse E, van der Kooi AJ, van der Pol WL, van Schaik IN, Notermans N, Tio-Gillen AP, van Rijs W, van Gelder T, Jacobs BC
Objective: To determine the variability of serum IgG in patients with chronic inflammatory demyelinating polyneuropathy (CIDP). Methods: All 25 CIDP patients had active but stable disease and were treated with individually optimised fixed dose IVIg regimens. IgG was measured by turbidimetry and variability was defined as coefficient of variation (CV). Results: The intra-patient variability of the pre-treatment IgG levels, post-treatment levels and increase in serum IgG shortly after IVIg (ΔIgG)...
Abstract
Cited 37 times since 2013 (3 per year)
source: EuropePMC
American heart journal,
Volume 165, Issue 5, 27 4 2013, Pages 793-99, 799.e1
Contrast-induced acute kidney injury and clinical outcomes after intra-arterial and intravenous contrast administration: risk comparison adjusted for patient characteristics by design.
Kooiman J, Le Haen PA, Gezgin G, de Vries JP, Boersma D, Brulez HF, Sijpkens YW, van der Molen AJ, Cannegieter SC, Hamming JF, Huisman MV
Background: Direct comparisons between risk of contrast induced acute kidney injury (CI-AKI) after intra-arterial versus intravenous contrast administration are scarce. We estimated and compared the risk of CI-AKI and its clinical course after both modes of contrast administration in patients who underwent both. Methods: One hundred seventy patients who received both intra-arterial and intravenous contrast injections within one year between 2001 and 2010 were included. Primary outcome was occurr...
Abstract
Cited 56 times since 2013 (4.6 per year)
source: EuropePMC
Circulation research,
Volume 112, Issue 10, 26 4 2013, Pages 1310-1322
Unique cardiac Purkinje fiber transient outward current β-subunit composition: a potential molecular link to idiopathic ventricular fibrillation.
Xiao L, Koopmann TT, Ördög B, Postema PG, Verkerk AO, Iyer V, Sampson KJ, Boink GJ, Mamarbachi MA, Varro A, Jordaens L, Res J, Kass RS, Wilde AA, Bezzina CR, Nattel S
Rationale: A chromosomal haplotype producing cardiac overexpression of dipeptidyl peptidase-like protein-6 (DPP6) causes familial idiopathic ventricular fibrillation. The molecular basis of transient outward current (I(to)) in Purkinje fibers (PFs) is poorly understood. We hypothesized that DPP6 contributes to PF I(to) and that its overexpression might specifically alter PF I(to) properties and repolarization. Objective: To assess the potential role of DPP6 in PF I(to). Methods and results: Clin...
Abstract
Cited 17 times since 2013 (1.4 per year)
source: EuropePMC
The British journal of nutrition,
Volume 110, Issue 8, 26 4 2013, Pages 1454-1464
Maternal first-trimester dietary intake and childhood blood pressure: the Generation R Study.
van den Hil LC, Rob Taal H, de Jonge LL, Heppe DH, Steegers EA, Hofman A, van der Heijden AJ, Jaddoe VW
Suboptimal maternal dietary intake during pregnancy might lead to fetal cardiovascular adaptations and higher blood pressure in the offspring. The aim of the present study was to investigate the associations of maternal first-trimester dietary intake with blood pressure in children at the age of 6 years. We assessed first-trimester maternal daily dietary intake by a FFQ and measured folate, homocysteine and vitamin B₁₂ concentrations in the blood, in a population-based prospective cohort study a...
Abstract
Cited 73 times since 2013 (6 per year)
source: Scopus
Antioxidants & redox signaling,
Volume 19, Issue 6, 26 4 2013, Pages 535-545
Oxidative damage in clinical ischemia/reperfusion injury: a reappraisal.
de Vries DK, Kortekaas KA, Tsikas D, Wijermars LG, van Noorden CJ, Suchy MT, Cobbaert CM, Klautz RJ, Schaapherder AF, Lindeman JH
Aims: Ischemia/reperfusion (I/R) injury is a common clinical problem. Although the pathophysiological mechanisms underlying I/R injury are unclear, oxidative damage is considered a key factor in the initiation of I/R injury. Findings from preclinical studies consistently show that quenching reactive oxygen and nitrogen species (RONS), thus limiting oxidative damage, alleviates I/R injury. Results from clinical intervention studies on the other hand are largely inconclusive. In this study, we sys...
Abstract
Cited 100 times since 2013 (8.2 per year)
source: Scopus
European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery,
Volume 44, Issue 1, 25 4 2013, Pages e8-15
Transcatheter valve-in-ring implantation after failure of surgical mitral repair.
Descoutures F, Himbert D, Maisano F, Casselman F, de Weger A, Bodea O, Van der Kley F, Colombo A, Giannini C, Rein KA, De Bruyne B, Petronio AS, Dahle G, Alfieri O, Vahanian A
Objectives: Redo surgery after failed mitral valve repair may be high risk, or contraindicated in patients with comorbidities. Because of this high risk, other interventional possibilities like transcatheter valve implantation might be of benefit. We report our experience with transcatheter mitral valve-in-ring implantation (TVIR) in high-risk patients after failure of surgical ring annuloplasty. Methods: From January 2010 to February 2012, following a multidisciplinary discussion, 17 high-risk...
Abstract
Cited 40 times since 2013 (3.3 per year)
source: EuropePMC
European journal of cardiovascular nursing,
Volume 13, Issue 1, 22 4 2013, Pages 86-94
Illness perceptions of adults with congenital heart disease and their predictive value for quality of life two years later.
Schoormans D, Mulder BJ, van Melle JP, Pieper PG, van Dijk AP, Sieswerda GT, Hulsbergen-Zwarts MS, Plokker TH, Brunninkhuis LG, Vliegen HW, Sprangers MA
Background: To improve patients' quality of life (QoL) we need to identify modifiable determinants, such as illness perceptions. Patients' illness perceptions are known to regulate emotional responses and health-behaviour. Illness perceptions comprise several components: consequences, control, coherence, changeability and emotional representations. Aims: To examine (a) the relation between patient characteristics and illness perceptions, and (b) the independent predictive value of illn...
Abstract
Cited 2 times since 2013 (0.2 per year)
source: EuropePMC
General and comparative endocrinology,
Volume 187, 22 4 2013, Pages 23-31
The reproductive cycle of the male house gecko, Hemidactylus flaviviridis, in relation to plasma steroid concentrations, progesterone receptors, and steroidogenic ultrastructural features, in Oman.
Al-Amri IS, Mahmoud IY, Waring CP, Alkindi AY, Khan T, Bakheit C, Al-Mawali KM
The annual testicular cycle of the house gecko Hemidactylus flaviviridis in Oman was studied. Plasma testosterone (T), estradiol (E2) and progesterone (P) concentrations were measured using a sensitive HPLC-MS/MS detection technique. The ultrastructural steroidogenic features in Sertoli and Leydig cells, which were the major source of steriodogenesis, were examined, using transmission electron microscopy (TEM). In addition, progesterone receptors (PR) were examined throughout the testicular cycl...
Abstract
Cited 44 times since 2013 (3.6 per year)
source: EuropePMC
Proceedings. Biological sciences,
Volume 280, Issue 1759, 20 3 2013, Pages 20130081
The collective action problem in primate territory economics.
Willems EP, Hellriegel B, van Schaik CP
Group-living animals often do not maintain territories, but instead have highly overlapping ranges, even though in principle these are economically defendable. We investigate whether this absence of range defence reflects a collective action problem, since a territory can be considered a public good. In a comparative analysis comprising 135 primate species, we find a positive association between range overlap and group size, controlling for economic defendability and phylogenetic non-independenc...
Abstract
Cited 14 times since 2013 (1.1 per year)
source: EuropePMC
Frontiers in zoology,
Volume 10, Issue 1, 19 3 2013, Pages 12
Variation in developmental arrest among male orangutans: a comparison between a Sumatran and a Bornean population.
Dunkel LP, Arora N, van Noordwijk MA, Atmoko SS, Putra AP, Krützen M, van Schaik CP
Introduction: The presence of two sexually active male morphs with different reproductive tactics in a single species is rare among mammals. The most striking case of bimaturism among primates is exhibited by the orangutan (Pongo spp), in which one adult morph, the unflanged male, irreversibly develops into another one, the flanged form, but may remain arrested in the unflanged state for many years. However, it has been suggested that such arrest is less common among Bornean orangutans (Pongo py...
Abstract
Cited 17 times since 2013 (1.4 per year)
source: EuropePMC
Neural networks : the official journal of the International Neural Network Society,
Volume 45, 14 2 2013, Pages 94-100
Learning the pseudoinverse solution to network weights.
Tapson J, van Schaik A
The last decade has seen the parallel emergence in computational neuroscience and machine learning of neural network structures which spread the input signal randomly to a higher dimensional space; perform a nonlinear activation; and then solve for a regression or classification output by means of a mathematical pseudoinverse operation. In the field of neuromorphic engineering, these methods are increasingly popular for synthesizing biologically plausible neural networks, but the "learning...
Abstract
Cited 34 times since 2013 (2.8 per year)
source: EuropePMC
PloS one,
Volume 8, Issue 3, 12 2 2013, Pages e59199
Subclinical thyroid dysfunction and cognitive decline in old age.
Wijsman LW, de Craen AJ, Trompet S, Gussekloo J, Stott DJ, Rodondi N, Welsh P, Jukema JW, Westendorp RG, Mooijaart SP
Background: Subclinical thyroid dysfunction has been implicated as a risk factor for cognitive decline in old age, but results are inconsistent. We investigated the association between subclinical thyroid dysfunction and cognitive decline in the PROspective Study of Pravastatin in the Elderly at Risk (PROSPER). Methods: Prospective longitudinal study of men and women aged 70-82 years with pre-existing vascular disease or more than one risk factor to develop this condition (N = 5,154). Participan...
Abstract
