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1.
J Dairy Sci ; 104(3): 3353-3363, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-33358788

RESUMEN

Efficient calving surveillance is essential for avoiding stillbirth due to unattended dystocia. Calving sensors can help detect the onset of parturition and thus ensure timely calving assistance if necessary. Tail-raising is an indicator of imminent calving. The objective of this study was to evaluate a tail-mounted inclinometer sensor (Moocall Ltd., Dublin, Ireland) and to monitor skin integrity after sensor attachment. Cows (n = 157) and heifers (n = 23) were enrolled at 275 d post insemination, and a sensor was attached to each cow's tail. Investigators checked for signs indicating the onset of stage II of parturition, verified the position of the sensor, and evaluated the skin integrity of the tail above and below the sensor hourly for 24 h/d. We used 5 different intervals (i.e., 1, 2, 4, 12, and 24 h until calving) to calculate sensitivity and specificity. Sensors continuously remained on the tail (i.e., within 3 cm of the initial attachment position) after initial attachment until the onset of calving in only 13.9% of animals (n = 25). Sensors were reattached until a calving event occurred (51.6%) or the animal was excluded for other reasons (34.4%). In 31 animals the sensor was removed because the tail was swollen or painful. Heifers were significantly less likely than cows to lose a sensor but more likely to experience tail swelling or pain. Depending on the interval preceding the onset of parturition, sensitivity varied from 19 to 75% and specificity from 63 to 96%.


Asunto(s)
Enfermedades de los Bovinos , Distocia , Animales , Bovinos , Distocia/diagnóstico , Distocia/veterinaria , Femenino , Irlanda , Parto , Embarazo , Sensibilidad y Especificidad , Cola (estructura animal)
3.
Phys Rev Lett ; 122(4): 042502, 2019 Feb 01.
Artículo en Inglés | MEDLINE | ID: mdl-30768318

RESUMEN

Even mass neutron-rich niobium isotopes are among the principal contributors to the reactor antineutrino energy spectrum. They are also among the most challenging to measure due to the refractory nature of niobium, and because they exhibit isomeric states lying very close in energy. The ß-intensity distributions of ^{100gs,100m}Nb and ^{102gs,102m}Nb ß decays have been determined using the total absorption γ-ray spectroscopy technique. The measurements were performed at the upgraded Ion Guide Isotope Separator On-Line facility at the University of Jyväskylä. Here, the double Penning trap system JYFLTRAP was employed to disentangle the ß decay of the isomeric states. The new data obtained in this challenging measurement have a large impact in antineutrino summation calculations. For the first time the discrepancy between the summation model and the reactor antineutrino measurements in the region of the shape distortion has been reduced.

4.
Scand J Rheumatol ; 48(1): 32-41, 2019 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-29985728

RESUMEN

OBJECTIVE: Systemic lupus erythematosus (SLE) is a chronic autoimmune disease with a high risk of atherosclerosis and cardiovascular disease (CVD). MicroRNAs (miRNAs) are small non-coding RNAs that modulate protein translation, and dysregulation is seen in autoimmunity, atherosclerosis, and CVD. We investigate associations between circulating miRNAs and markers of atherosclerosis in SLE patients. METHOD: A group (n = 121) of well-characterized SLE patients were screened for atherosclerosis by cardiac computed tomography and carotid ultrasound. RNA was purified from plasma and 46 specific miRNAs were determined using quantitative real-time polymerase chain reaction. RESULTS: Forty-one miRNAs were consistently detected. Fifty out of 118 available SLE patients had atherosclerosis. A profile consisting of three miRNAs (decreased miR-125b, miR-101, miR-375) was indicative of atherosclerosis. Multivariate logistic regression identified eight clinical manifestations associated with atherosclerotic outcome. The full classification profile showed a specificity of 88% and a sensitivity of 86%. Hierarchical clustering identified an eight-miRNA profile that differentiated a subgroup of SLE patients (n = 16) who had significantly increased venous thrombotic events (p = 0.045), a higher prevalence of ß2-glycoprotein I antibodies (p = 0.029), and an increased prevalence of thrombocytopenia (p = 0.028). CONCLUSION: In this cross-sectional study, the circulating miRNA profile distinguished SLE patients with atherosclerosis from those without. Furthermore, an eight-miRNA signature was associated with thrombocytopenia, venous thrombotic events, and ß2-glycoprotein I antibodies in SLE patients. Prospective studies are needed to confirm the findings and to establish the precise role of circulating miRNA profiling in the evaluation of atherosclerosis in SLE.


Asunto(s)
Enfermedades Cardiovasculares/genética , MicroARN Circulante/genética , Lupus Eritematoso Sistémico/genética , Adulto , Biomarcadores/sangre , Enfermedades Cardiovasculares/sangre , Enfermedades Cardiovasculares/etiología , MicroARN Circulante/biosíntesis , Estudios Transversales , ADN/genética , Femenino , Estudios de Seguimiento , Perfilación de la Expresión Génica , Humanos , Lupus Eritematoso Sistémico/metabolismo , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Reacción en Cadena en Tiempo Real de la Polimerasa
5.
Phys Rev Lett ; 120(26): 262701, 2018 Jun 29.
Artículo en Inglés | MEDLINE | ID: mdl-30004755

RESUMEN

The rare-earth peak in the r-process abundance pattern depends sensitively on both the astrophysical conditions and subtle changes in nuclear structure in the region. This work takes an important step towards elucidating the nuclear structure and reducing the uncertainties in r-process calculations via precise atomic mass measurements at the JYFLTRAP double Penning trap. ^{158}Nd, ^{160}Pm, ^{162}Sm, and ^{164-166}Gd have been measured for the first time, and the precisions for ^{156}Nd, ^{158}Pm, ^{162,163}Eu, ^{163}Gd, and ^{164}Tb have been improved considerably. Nuclear structure has been probed via two-neutron separation energies S_{2n} and neutron pairing energy metrics D_{n}. The data do not support the existence of a subshell closure at N=100. Neutron pairing has been found to be weaker than predicted by theoretical mass models. The impact on the calculated r-process abundances has been studied. Substantial changes resulting in a smoother abundance distribution and a better agreement with the solar r-process abundances are observed.

6.
Lupus ; 27(1): 165-171, 2018 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-29050537

RESUMEN

Objective To determine the incidence, duration and cause of hospitalization in a cohort of Danish patients with systemic lupus erythematosus (SLE). In addition, we investigated risk factors for admission and prolonged hospital stay. Methods A total of 155 SLE patients from a population-based cohort were included in the study during a period of 70 months, from January 2007 to October 2012. Data on frequency, cause and duration of hospitalizations were obtained by review of medical charts. Data on disease manifestations, organ damage and treatment were collected prospectively. Results A total of 101 of the 155 SLE patients (65%) had one or more hospitalization during the study period. The incidence rate of all hospitalizations was 0.50 per year. Leading causes of admission were complications to SLE or its treatment, but infections were also common. Mean duration of hospital stay was 6.4 ± 10.5 days, and SLE Disease Activity Index 2000 (SLEDAI-2K) on admission emerged as a risk factor for prolonged hospital stay. Conclusion Danish SLE patients experience frequent admissions to hospital. Complications to SLE or its treatment, as well as infections, are leading causes of admission. High SLEDAI-2K on admission is a risk factor for prolonged hospital stay.


Asunto(s)
Hospitalización/estadística & datos numéricos , Lupus Eritematoso Sistémico/epidemiología , Adulto , Anciano , Dinamarca/epidemiología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Factores de Riesgo
7.
Lupus ; 27(9): 1424-1430, 2018 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-29788808

RESUMEN

Objectives The objectives of this paper are to describe the epidemiology of cutaneous lupus erythematosus (CLE) and its subtypes in Denmark, and to investigate the probability of receiving a subsequent diagnosis of systemic lupus erythematosus (SLE) and the related time course. Methods A nationwide registry-based cohort study was conducted in Denmark based on data from the Danish National Patient Registry from 1998 to 2013 using International Classification of Diseases, Revision 10. Results We identified 2380 patients with CLE. The annual incidence rate (IR) of CLE was 2.74/100,000 with a female:male ratio of 4:1. During 12,047 person-years of follow-up, 8% were diagnosed with SLE. The probability of receiving a subsequent diagnosis of SLE was 12.9% after 10 years taking death as a competing risk into consideration, and the probability was highest among women and patients diagnosed with subacute CLE. The median time until a diagnosis of SLE was 2.05 years. Conclusions This is the first nationwide study on CLE in Denmark. Although we found the annual IR of CLE and the risk of receiving an additional diagnosis of SLE to be lower than previously described, continued monitoring and thorough information for patients with CLE is important due to the inherent risk of SLE.


Asunto(s)
Lupus Eritematoso Cutáneo/epidemiología , Lupus Eritematoso Sistémico/epidemiología , Sistema de Registros , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Niño , Preescolar , Estudios de Cohortes , Dinamarca/epidemiología , Femenino , Humanos , Incidencia , Lactante , Lupus Eritematoso Cutáneo/complicaciones , Lupus Eritematoso Sistémico/etiología , Masculino , Persona de Mediana Edad , Adulto Joven
8.
Lupus ; 26(7): 723-728, 2017 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-27831535

RESUMEN

Background Systemic lupus erythematosus (SLE) is an autoimmune disease with presence of autoantibodies and characteristic multi-organ involvement. Relatives of SLE patients have an increased risk of autoantibody production and autoimmune diseases. Methods In 2001, 226 first degree relatives (FDRs) of a population-based cohort of SLE patients were examined for the prevalence of autoantibodies and self-reported health complaints. In 2013, 143 FDRs were re-investigated and deceased's medical records were examined. Results Participants and non-participants were comparable regarding baseline characteristics, while deceased FDRs were older than participants, but with comparable ANA status. ANA status at baseline correlated to ANA status at follow-up. At follow-up, two FDRs reported SLE and 15 FDRs other autoimmune diseases. No observation at baseline alone could predict self-reported health. During follow-up 33 died at median age 76 years. Three deceased FDRs were diagnosed with an autoimmune disease. Conclusion The study showed that FDRs of SLE patients have an increased prevalence of ANA compared to healthy controls. The prevalence increased during follow-up, and ANA positive FDRs at baseline were prone to be ANA positive at follow-up. ANA positive FDRs had more self-reported autoimmune diseases, including SLE and rheumatoid arthritis, than reported from other population-based investigations.


Asunto(s)
Anticuerpos Antinucleares/inmunología , Autoanticuerpos/inmunología , Enfermedades Autoinmunes/inmunología , Lupus Eritematoso Sistémico/inmunología , Factores de Edad , Anciano , Artritis Reumatoide/epidemiología , Artritis Reumatoide/inmunología , Enfermedades Autoinmunes/epidemiología , Familia , Femenino , Estudios de Seguimiento , Humanos , Lupus Eritematoso Sistémico/epidemiología , Masculino , Persona de Mediana Edad , Prevalencia , Factores de Tiempo
9.
Phys Rev Lett ; 116(7): 072501, 2016 Feb 19.
Artículo en Inglés | MEDLINE | ID: mdl-26943530

RESUMEN

The atomic mass relations among the mass triplet ^{96}Zr, ^{96}Nb, and ^{96}Mo have been determined by means of high-precision mass measurements using the JYFLTRAP mass spectrometer at the IGISOL facility of the University of Jyväskylä. We report Q values for the ^{96}Zr single and double ß decays to ^{96}Nb and ^{96}Mo, as well as the Q value for the ^{96}Nb single ß decay to ^{96}Mo, which are Q_{ß}(^{96}Zr)=163.96(13), Q_{ßß}(^{96}Zr)=3356.097(86), and Q_{ß}(^{96}Nb)=3192.05(16) keV. Of special importance is the ^{96}Zr single ß-decay Q value, which has never been determined directly. The single ß decay, whose main branch is fourfold unique forbidden, is an alternative decay path to the ^{96}Zr ßß decay, and its observation can provide one of the most direct tests of the neutrinoless ßß-decay nuclear-matrix-element calculations, as these can be simultaneously performed for both decay paths with no further assumptions. The theoretical single ß-decay rate has been re-evaluated using a shell-model approach, which indicates a ^{96}Zr single ß-decay lifetime within reach of an experimental verification. The uniqueness of the decay also makes such an experiment interesting for an investigation into the origin of the quenching of the axial-vector coupling constant g_{A}.

10.
Eur J Clin Microbiol Infect Dis ; 35(9): 1463-8, 2016 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-27259712

RESUMEN

Epidemic clones of Acinetobacter baumannii, described as European clones I, II, and III, are associated with hospital epidemics throughout the world. We aimed to determine the molecular characteristics and genetic diversity between European clones I, II, and III from Turkey and Azerbaijan. In this study, a total of 112 bloodstream isolates of carbapenem-resistant Acinetobacter spp. were collected from 11 hospitals across Turkey and Azerbaijan. The identification of Acinetobacter spp. using conventional and sensitivity tests was performed by standard criteria. Multiplex polymerase chain reaction (PCR) was used to detect OXA carbapenemase-encoding genes (bla OXA-23-like, bla OXA-24-like, bla OXA-51-like, and bla OXA-58-like). Pulsed-field gel electrophoresis (PFGE) typing was used to investigate genetic diversity. The bla OXA-51-like gene was present in all 112 isolates, 75 (67 %) carried bla OXA-23-like, 7 (6.2 %) carried bla OXA-58-like genes, and 5 (4.5 %) carried bla OXA-24-like genes. With a 90 % similarity cut-off value, 15 clones and eight unique isolates were identified. The largest clone was cluster D, with six subtypes. Isolates from clusters D and I were widely spread in seven different geographical regions throughout Turkey. However, F cluster was found in the northern and eastern regions of Turkey. EU clone I was grouped within J cluster with three isolates found in Antalya, Istanbul, and Erzurum. EU clone II was grouped in the U cluster with 15 isolates and found in Kayseri and Diyarbakir. The bla OXA-24-like gene in carbapenemases was identified rarely in Turkey and has been reported for the first time from Azerbaijan. Furthermore, this is the first multicenter study in Turkey and Azerbaijan to identify several major clusters belonging to European clones I and II of A. baumannii.


Asunto(s)
Infecciones por Acinetobacter/epidemiología , Infecciones por Acinetobacter/microbiología , Acinetobacter baumannii/efectos de los fármacos , Antibacterianos/farmacología , Carbapenémicos/farmacología , Resistencia betalactámica , Acinetobacter baumannii/clasificación , Acinetobacter baumannii/genética , Acinetobacter baumannii/aislamiento & purificación , Azerbaiyán/epidemiología , Análisis por Conglomerados , Infección Hospitalaria/epidemiología , Infección Hospitalaria/microbiología , Electroforesis en Gel de Campo Pulsado , Variación Genética , Genotipo , Hospitales , Humanos , Pruebas de Sensibilidad Microbiana , Epidemiología Molecular , Tipificación Molecular , Reacción en Cadena de la Polimerasa Multiplex , Turquía/epidemiología , beta-Lactamasas/genética
12.
Euro Surveill ; 20(8)2015 Feb 26.
Artículo en Inglés | MEDLINE | ID: mdl-25742435

RESUMEN

Post-discharge surveillance (PDS) for surgical site infections (SSIs) normally lasts 30 days, or one year after implant surgery, causing delayed feedback to healthcare professionals. We investigated the effect of shortened PDS durations on SSI incidence to determine whether shorter PDS durations are justified. We also studied the impact of two national PDS methods (those mandatory since 2009 ('mandatory') and other methods acceptable before 2009 ('other')) on SSI incidence. From Dutch surveillance (PREZIES) data (1999-2008), four implant-free surgeries (breast amputation, Caesarean section, laparoscopic cholecystectomy and colectomy) and two implant surgeries (knee replacement and total hip replacement) were selected. We studied the impact of PDS duration and method on SSI incidences by survival and Cox regression analyses. We included 105,607 operations. Shortened PDS duration for implant surgery from one year to 90 days resulted in 6­14% of all SSIs being missed. For implant-free procedures, PDS reduction from 30 to 21 days caused similar levels of missed SSIs. In contrast, up to 62% of SSIs (for cholecystectomy) were missed if other instead of mandatory PDS methods were used. Inferior methods of PDS, rather than shortened PDS durations, may lead to greater underestimation of SSI incidence. Our data validate international recommendations to limit the maximum PDS duration (for implant surgeries) to 90 days for surveillance purposes, as this provides robust insight into trends.


Asunto(s)
Alta del Paciente , Vigilancia de la Población/métodos , Cuidados Posoperatorios/normas , Infección de la Herida Quirúrgica/epidemiología , Infección Hospitalaria/epidemiología , Infección Hospitalaria/prevención & control , Femenino , Encuestas de Atención de la Salud , Hospitales , Humanos , Incidencia , Masculino , Países Bajos/epidemiología , Modelos de Riesgos Proporcionales , Factores de Riesgo , Infección de la Herida Quirúrgica/microbiología , Infección de la Herida Quirúrgica/prevención & control , Análisis de Supervivencia , Factores de Tiempo
13.
Am J Transplant ; 14(11): 2607-16, 2014 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-25293510

RESUMEN

We sought to determine the ability of quantitative myocardial perfusion reserve index (MPRI) by cardiac magnetic resonance (CMR) and high-sensitive troponin T (hsTnT) for the prediction of cardiac allograft vasculopathy (CAV) and cardiac outcomes in heart transplant (HT) recipients. In 108 consecutive HT recipients (organ age 4.1±4.7 years, 25 [23%] with diabetes mellitus) who underwent cardiac catheterization, CAV grade by International Society for Heart & Lung Transplantation (ISHLT) criteria, MPRI, late gadolinium enhancement (LGE) and hsTnT values were obtained. Outcome data including cardiac death and urgent revascularization ("hard cardiac events") and revascularization procedures were prospectively collected. During a follow-up duration of 4.2±1.4 years, seven patients experienced hard cardiac events and 11 patients underwent elective revascularization procedures. By multivariable analysis, hsTnT and MPRI both independently predicted cardiac events, surpassing the value of LGE and CAV by ISHLT criteria. Furthermore, hsTnT and MPRI provided complementary value. Thus, patients with high hsTnT and low MPRI showed the highest rates of cardiac events (annual event rate=14.5%), while those with low hsTnT and high MPRI exhibited excellent outcomes (annual event rate=0%). In conclusion, comprehensive "bio-imaging" using hsTnT, as a marker of myocardial microinjury, and CMR, as a marker of microvascular integrity and myocardial damage by LGE, may aid personalized risk-stratification in HT recipients.


Asunto(s)
Biomarcadores/sangre , Vasos Coronarios/patología , Trasplante de Corazón , Imagen por Resonancia Magnética , Troponina T/sangre , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Sensibilidad y Especificidad
14.
Diabet Med ; 31(9): 1069-77, 2014 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-24867069

RESUMEN

AIMS: Among people with diabetes, 10-25% will experience a foot ulcer. Research has shown that supplementation with arginine, glutamine and ß-hydroxy-ß-methylbutyrate may improve wound repair. This study tested whether such supplementation would improve healing of foot ulcers in persons with diabetes. METHODS: Along with standard of care, 270 subjects received, in a double-blinded fashion, (twice per day) either arginine, glutamine and ß-hydroxy-ß-methylbutyrate or a control drink for 16 weeks. The proportion of subjects with total wound closure and time to complete healing was assessed. In a post-hoc analysis, the interaction of serum albumin or limb perfusion, as measured by ankle-brachial index, and supplementation on healing was investigated. RESULTS: Overall, there were no group differences in wound closure or time to wound healing at week 16. However, in subjects with an albumin level of ≤ 40 g/l and/or an ankle-brachial index of < 1.0, a significantly greater proportion of subjects in the arginine, glutamine and ß-hydroxy-ß-methylbutyrate group healed at week 16 compared with control subjects (P = 0.03 and 0.008, respectively). Those with low albumin or decreased limb perfusion in the supplementation group were 1.70 (95% CI 1.04-2.79) and 1.66 (95% CI 1.15-2.38) times more likely to heal. CONCLUSIONS: While no differences in healing were identified with supplementation in non-ischaemic patients or those with normal albumin, addition of arginine, glutamine and ß-hydroxy-ß-methylbutyrate as an adjunct to standard of care may improve healing of diabetic foot ulcers in patients with risk of poor limb perfusion and/or low albumin levels. Further investigation involving arginine, glutamine and ß-hydroxy-ß-methylbutyrate in these high-risk subgroups might prove clinically valuable.


Asunto(s)
Arginina/administración & dosificación , Pie Diabético/fisiopatología , Suplementos Dietéticos , Glutamina/administración & dosificación , Valeratos/administración & dosificación , Cicatrización de Heridas , Adulto , Anciano , Anciano de 80 o más Años , Índice Tobillo Braquial , Pie Diabético/dietoterapia , Método Doble Ciego , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Resultado del Tratamiento
15.
Eur J Clin Microbiol Infect Dis ; 33(1): 89-101, 2014 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-23893016

RESUMEN

Methicillin-resistant Staphylococcus aureus (MRSA) has rapidly emerged worldwide, affecting both healthcare and community settings, and intensive livestock industry. The efficient control of MRSA strongly depends on its adequate laboratory detection. This guideline provides recommendations on the appropriate use of currently available diagnostic laboratory methods for the timely and accurate detection of MRSA in patients and healthcare workers. Herewith, it aims to standardise and improve the diagnostic laboratory procedures that are used for the detection of MRSA in Dutch medical microbiology laboratories.


Asunto(s)
Portador Sano/diagnóstico , Portador Sano/microbiología , Staphylococcus aureus Resistente a Meticilina/aislamiento & purificación , Infecciones Estafilocócicas/diagnóstico , Infecciones Estafilocócicas/microbiología , Humanos , Pruebas de Sensibilidad Microbiana/métodos , Países Bajos
16.
Rheumatol Int ; 34(10): 1401-8, 2014 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-24719229

RESUMEN

This study aimed to demonstrate possible associations between genetic polymorphisms in Toll-like receptor 3, interferon induced with helicase C domain 1 (IFIH1) and DEAD (Asp-Glu-Ala-Asp) box polypeptide 58 and systemic lupus erythematosus (SLE), including the phenotypes lupus nephritis and malar rash, as well as the presence of autoantibodies against nucleic acid-containing complexes. Genotyping was carried out in two Danish cohorts [Copenhagen (CPH) and Odense (ODE)] totaling 344 patients and was compared with 641 previously genotyped healthy controls. In the ODE cohort, the patients were only genotyped for the rs1990760 polymorphism of IFIH1. Single nucleotide polymorphisms (SNPs) were determined by a multiplex bead-based assay (CPH cohort) or real-time PCR (ODE cohort). Associations were investigated using the Cochran-Armitage trend test. The odds ratio (OR) for minor allele homozygotes versus major allele homozygotes suggested a protective effect of the IFIH1 rs1990760 SNP for SLE in the ODE cohort [OR 0.52, 95 % confidence intervals (95 % CI) 0.31-0.88, Pcorr. = 0.05] but not in the CPH cohort, although the OR suggested a trend in the same direction, and when combining the two patient cohorts, ORs were 0.57, 95 % CI 0.37-0.88. None of the other investigated polymorphisms showed any association with SLE. Regarding phenotypes, we found a statistically significant association between rs1990760 and malar rash in the CPH cohort, with ORs suggesting a protective effect (OR 0.28, 95 % CI 0.13-0.62 for heterozygotes and OR 0.11, 95 % CI 0.03-0.41 for homozygotes, Pcorr. = 0.0001). There were no significant associations between rs1990760 and presence of anti-dsDNA, anti-U1RNP, or anti-Smith antibodies. Our study supports previous findings of an association between the rs1990760 polymorphism of IFIH1 and SLE and indicates that this SNP may also be associated with malar rash in SLE patients although this finding needs confirmation.


Asunto(s)
ARN Helicasas DEAD-box/genética , Lupus Eritematoso Sistémico/genética , Polimorfismo de Nucleótido Simple , Receptores de Ácido Retinoico/genética , Receptor Toll-Like 3/genética , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Alelos , Proteína 58 DEAD Box , Femenino , Estudios de Asociación Genética , Predisposición Genética a la Enfermedad , Genotipo , Humanos , Helicasa Inducida por Interferón IFIH1 , Masculino , Persona de Mediana Edad , Fenotipo , Receptores Inmunológicos , Adulto Joven
17.
Neuroimage ; 64: 601-15, 2013 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-22986077

RESUMEN

Response inhibition is disturbed in several disorders sharing impulse control deficits as a core symptom. Since response inhibition is a cognitively and neurally multifaceted function which has been shown to rely on differing neural subprocesses and neurotransmitter systems, further differentiation to define neurophysiological endophenotypes is essential. Response inhibition may involve at least three separable cognitive subcomponents, i.e. interference inhibition, action withholding, and action cancelation. Here, we introduce a novel paradigm - the Hybrid Response Inhibition task - to disentangle interference inhibition, action withholding and action cancelation and their neural subprocesses within one task setting during functional magnetic resonance imaging (fMRI). To validate the novel task, results were compared to a battery of separate, standard response inhibition tasks independently capturing these subcomponents and subprocesses. Across all subcomponents, mutual activation was present in the right inferior frontal cortex (rIFC), pre-supplementary motor area (pre-SMA) and parietal regions. Interference inhibition revealed stronger activation in pre-motor and parietal regions. Action cancelation resulted in stronger activation in fronto-striatal regions. Our results show that all subcomponents share a common neural network and thus all constitute different subprocesses of response inhibition. Subprocesses, however, differ to the degree of regional involvement: interference inhibition relies more pronouncedly on a fronto-parietal-pre-motor network suggesting its close relation to response selection processes. Action cancelation, in turn, is more strongly associated with the fronto-striatal pathway implicating it as a late subcomponent of response inhibition. The new paradigm reliably captures three putatively subsequent subprocesses of response inhibition and might be a promising tool to differentially assess disturbed neural networks in disorders showing impulse control deficits.


Asunto(s)
Corteza Cerebral/fisiología , Toma de Decisiones/fisiología , Inhibición Psicológica , Imagen por Resonancia Magnética/métodos , Red Nerviosa/fisiología , Inhibición Neural/fisiología , Adulto , Femenino , Humanos , Masculino , Adulto Joven
18.
Am J Transplant ; 13(6): 1491-502, 2013 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-23617734

RESUMEN

The purpose of our study was to investigate whether the quantification of myocardial blush grade (MBG) during surveillance coronary angiography can predict long-term outcome after heart transplantation (HT). In 105 HT recipients who underwent cardiac catheterization, cardiac allograft vasculopathy (CAV) was assessed visually using the ISHLT grading scale (prospective cohort study). MBG was quantified by dividing the plateau of contrast agent gray-level intensity (G(max)) by the time-to-peak intensity (T(max)). In a subgroup (n = 72), myocardial perfusion index by cardiac magnetic resonance imaging (CMR) was assessed. During a mean follow-up duration of 2.7 (standard deviation [SD] 1.0) years, 26 patients experienced cardiac events, including 7 with cardiac death and 19 who underwent coronary revascularization. G(max)/T(max) was related to CAV by ISHLT criteria and to subsequent cardiac events. By univariate analysis, patient age, organ age, CAV, MBG and myocardial perfusion index by CMR were all predictive for cardiac events. Multivariable analysis demonstrated that G(max)/T(max) provided the most robust prediction of cardiac death (hazard ratio [HR] = 0.2, 95% confidence interval [CI] = 0.06-0.64, p < 0.01) and cardiac events (HR = 0.52, 95% CI = 0.32-0.84, p < 0.01), beyond clinical parameters and the presence of CAV. G(max)/T(max) is a valuable surrogate parameter of microvascular integrity, which is associated with cardiac death and revascularization procedures after HT.


Asunto(s)
Angiografía Coronaria/métodos , Enfermedad de la Arteria Coronaria/diagnóstico , Circulación Coronaria , Trasplante de Corazón/normas , Miocardio/patología , Cateterismo Cardíaco , Enfermedad de la Arteria Coronaria/mortalidad , Enfermedad de la Arteria Coronaria/terapia , Femenino , Estudios de Seguimiento , Alemania/epidemiología , Insuficiencia Cardíaca/cirugía , Trasplante de Corazón/mortalidad , Humanos , Imagen por Resonancia Cinemagnética , Masculino , Microcirculación , Persona de Mediana Edad , Revascularización Miocárdica , Estudios Retrospectivos , Tasa de Supervivencia/tendencias , Factores de Tiempo , Trasplante Homólogo
19.
Lupus ; 22(11): 1185-91, 2013 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-23873432

RESUMEN

OBJECTIVE: The objective of this paper is to investigate survival and causes of death in a Danish lupus population. METHODS: Two hundred and fifteen SLE patients (94% Caucasians) were followed prospectively for up to 16 years. Thirty-eight patients died. Survival rate and causes of death were analysed. RESULTS: Overall standardized mortality ratio (SMR) was 2.2. Peak values were recorded for patients aged 20-29 (SMR 21.1). Cumulated survival rates at one, five, 10 and 15 years were 98.6%, 93.6%, 86.5% and 73.0%, respectively. The most common causes of death were cardiovascular events (32%), respiratory system disease (16%) and malignancies (13%). Deaths due to infections and active SLE were rare and predominated within the first seven years after diagnosis and before age 40, while cardiovascular deaths prevailed after 20 years' follow-up. CONCLUSION: This study shows that despite progress in lupus management, including direct access to specialized hospital care and increased use of hydroxychloroquine, mortality in lupus patients is still increased. Main causes of death were active disease and infections among the young and newly diagnosed, while cardiovascular deaths prevailed in longstanding disease.


Asunto(s)
Lupus Eritematoso Sistémico/mortalidad , Adulto , Dinamarca , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Tasa de Supervivencia , Factores de Tiempo
20.
N Engl J Med ; 360(1): 20-31, 2009 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-19118302

RESUMEN

BACKGROUND: Selective digestive tract decontamination (SDD) and selective oropharyngeal decontamination (SOD) are infection-prevention measures used in the treatment of some patients in intensive care, but reported effects on patient outcome are conflicting. METHODS: We evaluated the effectiveness of SDD and SOD in a crossover study using cluster randomization in 13 intensive care units (ICUs), all in The Netherlands. Patients with an expected duration of intubation of more than 48 hours or an expected ICU stay of more than 72 hours were eligible. In each ICU, three regimens (SDD, SOD, and standard care) were applied in random order over the course of 6 months. Mortality at day 28 was the primary end point. SDD consisted of 4 days of intravenous cefotaxime and topical application of tobramycin, colistin, and amphotericin B in the oropharynx and stomach. SOD consisted of oropharyngeal application only of the same antibiotics. Monthly point-prevalence studies were performed to analyze antibiotic resistance. RESULTS: A total of 5939 patients were enrolled in the study, with 1990 assigned to standard care, 1904 to SOD, and 2045 to SDD; crude mortality in the groups at day 28 was 27.5%, 26.6%, and 26.9%, respectively. In a random-effects logistic-regression model with age, sex, Acute Physiology and Chronic Health Evaluation (APACHE II) score, intubation status, and medical specialty used as covariates, odds ratios for death at day 28 in the SOD and SDD groups, as compared with the standard-care group, were 0.86 (95% confidence interval [CI], 0.74 to 0.99) and 0.83 (95% CI, 0.72 to 0.97), respectively. CONCLUSIONS: In an ICU population in which the mortality rate associated with standard care was 27.5% at day 28, the rate was reduced by an estimated 3.5 percentage points with SDD and by 2.9 percentage points with SOD. (Controlled Clinical Trials number, ISRCTN35176830.)


Asunto(s)
Bacteriemia/prevención & control , Infección Hospitalaria/prevención & control , Descontaminación , Tracto Gastrointestinal/microbiología , Orofaringe/microbiología , APACHE , Anciano , Antibacterianos/uso terapéutico , Bacteriemia/epidemiología , Enfermedad Crítica/mortalidad , Enfermedad Crítica/terapia , Infección Hospitalaria/epidemiología , Estudios Cruzados , Femenino , Bacterias Gramnegativas/aislamiento & purificación , Humanos , Control de Infecciones/métodos , Unidades de Cuidados Intensivos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Respiración Artificial
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