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1.
Genet Med ; 23(11): 2087-2095, 2021 11.
Artículo en Inglés | MEDLINE | ID: mdl-34262154

RESUMEN

PURPOSE: Ataxia-Telangiectasia Mutated (ATM) has been implicated in the risk of several cancers, but establishing a causal relationship is often challenging. Although ATM single-nucleotide polymorphisms have been linked to melanoma, few functional alleles have been identified. Therefore, ATM impact on melanoma predisposition is unclear. METHODS: From 22 American, Australian, and European sites, we collected 2,104 familial, multiple primary (MPM), and sporadic melanoma cases who underwent ATM genotyping via panel, exome, or genome sequencing, and compared the allele frequency (AF) of selected ATM variants classified as loss-of-function (LOF) and variants of uncertain significance (VUS) between this cohort and the gnomAD non-Finnish European (NFE) data set. RESULTS: LOF variants were more represented in our study cohort than in gnomAD NFE, both in all (AF = 0.005 and 0.002, OR = 2.6, 95% CI = 1.56-4.11, p < 0.01), and familial + MPM cases (AF = 0.0054 and 0.002, OR = 2.97, p < 0.01). Similarly, VUS were enriched in all (AF = 0.046 and 0.033, OR = 1.41, 95% CI = 1.6-5.09, p < 0.01) and familial + MPM cases (AF = 0.053 and 0.033, OR = 1.63, p < 0.01). In a case-control comparison of two centers that provided 1,446 controls, LOF and VUS were enriched in familial + MPM cases (p = 0.027, p = 0.018). CONCLUSION: This study, describing the largest multicenter melanoma cohort investigated for ATM germline variants, supports the role of ATM as a melanoma predisposition gene, with LOF variants suggesting a moderate-risk.


Asunto(s)
Ataxia Telangiectasia , Melanoma , Proteínas de la Ataxia Telangiectasia Mutada/genética , Australia , Predisposición Genética a la Enfermedad , Mutación de Línea Germinal , Humanos , Melanoma/genética
2.
Osteoporos Int ; 32(5): 865-871, 2021 May.
Artículo en Inglés | MEDLINE | ID: mdl-33313993

RESUMEN

In elderly ambulatory men, high platelet and high neutrophil counts are related to low bone mineral density (BMD), after adjustment for relevant covariates. Low hemoglobin (hgb) is even associated with low BMD, but this relationship seems to be dependent on estradiol and osteocalcin. PURPOSE: Blood and bone cells exist in close proximity to each other in the bone marrow. Accumulating evidence, from both preclinical and clinical studies, indicates that these cell types are interconnected. Our hypothesis was that BMD measurements are associated with blood count variables and bone remodeling markers. METHODS: We analyzed blood count variables, bone remodeling markers, and BMD, in subjects from the MrOS cohort from Gothenburg, Sweden. Men with at least one blood count variable (hgb, white blood cell count, or platelet count) analyzed were included in the current analysis (n = 1005), median age 75.3 years (range 69-81 years). RESULTS: Our results show that high platelet counts were related to low BMD at all sites (total hip BMD; r = - 0.11, P = 0.003). No statistically significant association was seen between platelet counts and bone remodeling markers. Neutrophil counts were negatively associated with total body BMD (r = - 0.09, P = 0.006) and total hip BMD (r = - 0.08, P = 0.010), and positively related to serum ALP (r = 0.15, P < 0.001). Hgb was positively related to total hip BMD (r = 0.16, P < 0.001), and negatively to serum osteocalcin (r = - 0.13, P < 0.001). The association between platelet and neutrophil counts and total hip BMD was statistically significant after adjustments for other covariates, but the association between hgb and total hip BMD was dependent on estradiol and osteocalcin. CONCLUSIONS: Our observations support the hypothesis of an interplay between blood and bone components.


Asunto(s)
Densidad Ósea , Enfermedades Óseas Metabólicas , Anciano , Anciano de 80 o más Años , Biomarcadores , Humanos , Masculino , Osteocalcina , Recuento de Plaquetas , Suecia/epidemiología
3.
Scand J Clin Lab Invest ; 79(6): 395-403, 2019 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-31277556

RESUMEN

The aim of this study was to investigate if thrombocytopenic haematology patients show signs of endothelial damage when transfused with platelets and if that damage correlates with platelet increment measured with corrected count increment (CCI). Endothelial damage secondary to radiation or chemotherapy may lead to consumption of transfused platelets but research in this field is scarce. Patients were divided into four groups: Group 1: Acute leukaemia; Group 2: Autologous stem cell transplantation (SCT); Group 3: Allogenic SCT; and Group 4: patients receiving platelets prior to interventions. Blood was sampled before (baseline) and immediately after (0 h) transfusion and then at 1, 4, 8, 16 and 24 h after transfusion. The biomarkers syndecan-1, soluble thrombomodulin (sTM) and vascular endothelial growth factor (VEGF) were analysed. The plasma concentration differences between baseline and later sampling times were referred to as delta (Δ). Fifty-four platelet transfusion events were studied. All biomarkers were within the normal ranges both before and after the transfusions. The Δsyndecan-1 increased at 0 h (p = .02), but there was no significant correlation between Δsyndecan-1 and CCI. There was no change in any of the other biomarkers after transfusion compared to before. There were no differences between the groups and no correlations were found between CCI and C-reactive protein, Δsyndecan-1, ΔsTM or ΔVEGF. There were no signs of endothelial damage before or after platelet transfusions. A transient significant change in syndecan-1 immediately after platelet transfusion did not influence platelet count or platelet CCI.


Asunto(s)
Endotelio Vascular/fisiología , Transfusión de Plaquetas/efectos adversos , Plaquetas , Proteína C-Reactiva/metabolismo , Humanos , Recuento de Plaquetas , Estudios Prospectivos , Sindecano-1/sangre , Trombomodulina/sangre , Trasplante Autólogo , Factor A de Crecimiento Endotelial Vascular/sangre
4.
Vox Sang ; 113(7): 701-706, 2018 10.
Artículo en Inglés | MEDLINE | ID: mdl-30144091

RESUMEN

While specific practices and transported blood products vary around the world, most of the respondents in this International Forum transported at least one blood product for the transfusion to bleeding patients en route to the hospital. The most commonly carried product was RBCs, while the use of whole blood will likely increase given the recent reports of its successful use in the civilian setting, and because of the change in the AABB's Standards regulating its use. It will be interesting to see if plasma use in the prehospital setting becomes more widely used given today's enhanced appreciated of the coagulopathy of trauma and plasma's beneficial effect in reversing it, and if blood products are transported to the scene of injury by more vehicles, that is, not just predominantly in helicopters. It was not surprising that TXA is being widely administered as close to the time of injury as possible given its potential benefit in these patients. This International Forum highlights the importance of focusing attention on prehospital transfusion management with a need to further high­quality research in this area to guide optimal resuscitation strategies.


Asunto(s)
Transfusión Sanguínea/métodos , Congresos como Asunto , Servicios Médicos de Urgencia/métodos , Hemorragia/terapia , Sustitutos Sanguíneos/uso terapéutico , Humanos
5.
Transfus Med ; 28(3): 208-215, 2018 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-28661062

RESUMEN

OBJECTIVES: The primary objective of this feasibility study was to identify quality of life (QoL) scores and symptom scales as tools for measuring patient-reported outcomes (PRO) associated with haemoglobin level in chemotherapy-treated cancer patients. Secondary objectives included comparing QoL and symptoms between randomisation arms. BACKGROUND: Anaemia in cancer patients undergoing chemotherapy is associated with decreased QoL. One treatment option is red blood cell transfusion (RBCT). However, the optimal haemoglobin trigger for transfusion is unknown. METHODS: Patients were randomised to a haemoglobin trigger for RBCT of either < 9·7 g dL-1 (arm A) or < lower normal level, female: 11·5 g dL-1 , male: 13·1 g dL-1 (arm B). Four PROs were used: Functional Assessment of Cancer Therapy-General (FACT-G) and the FACT-Anaemia (FACT-An), a Numeric Rating Scale on symptoms of anaemia and self-reported Performance Status (PS). The association between haemoglobin and PRO variables was assessed using a linear mixed model with random effects. RESULTS: A total of 133 patients were enrolled, of which 86 patients received RBCT (28 in arm A, 58 in arm B). Baseline questionnaires were filled out in 79·7% of cases. Haemoglobin levels were significantly correlated with FACT-An, FACT-An Total Outcome Index (TOI), Functional Well-Being, fatigue and PS. Improvement on several PRO variables was observed in both arms after RBCT, with clinically minimal important differences observed in FACT-G, Physical Well-Being, FACT-An, FACT-An TOI, fatigue and dyspnoea. CONCLUSIONS: QoL scores of physical and functional domains as well as self-reported anaemia-related symptoms correlated well with haemoglobin level in chemotherapy-treated cancer patients.


Asunto(s)
Anemia , Transfusión de Eritrocitos , Hemoglobinas/metabolismo , Neoplasias , Autoinforme , Encuestas y Cuestionarios , Anciano , Anemia/sangre , Anemia/terapia , Femenino , Humanos , Masculino , Persona de Mediana Edad , Neoplasias/sangre , Neoplasias/terapia , Guías de Práctica Clínica como Asunto
6.
Transfus Med ; 28(5): 386-391, 2018 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-29781549

RESUMEN

BACKGROUND: In patients undergoing open surgery for a ruptured abdominal aortic aneurysm (rAAA), survivors demonstrate a high platelet count, and proactive administration of platelets (and fresh frozen plasma) appears to influence mortality. OBJECTIVES: This trial investigated the effect of platelets administered before transport to surgery. METHODS: In a prospective study design, patients were randomised to receive platelets (intervention; n = 61) or no platelets (control; n = 61) before transport to vascular surgery from 11 local hospitals. The study was terminated when one of the vascular surgical centres implemented endovascular repair for rAAA patients. RESULTS: Thirty days after surgery, mortality was 36% for patients with intervention vs 31% for controls (P = 0·32). Post-operative thrombotic events (14 vs 15; P = 0·69), renal failure (11 vs 10; P = 0·15) and pulmonary insufficiency (34 vs 39; P = 0·15) were similar in the two groups of patients. No adverse reactions to platelet administration were observed. In addition, length of stay in the intensive care unit was unaffected by intervention. CONCLUSIONS: For patients planned for open repair of a rAAA, we observed no significant effect of early administration of platelets with regard to post-operative complications and stay in the ICU or in hospital and also no significant effect on mortality.


Asunto(s)
Aneurisma de la Aorta Abdominal , Rotura de la Aorta , Transfusión de Plaquetas , Procedimientos Quirúrgicos Vasculares , Anciano , Aneurisma de la Aorta Abdominal/mortalidad , Aneurisma de la Aorta Abdominal/terapia , Rotura de la Aorta/mortalidad , Rotura de la Aorta/terapia , Femenino , Estudios de Seguimiento , Humanos , Masculino , Complicaciones Posoperatorias , Estudios Prospectivos , Procedimientos Quirúrgicos Vasculares/mortalidad
7.
Scand J Med Sci Sports ; 28(3): 1121-1129, 2018 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-29197119

RESUMEN

The aim of this study was to examine the secular trends in fundamental movement skills (FMS) among 15- to 16-year-old adolescents at 2 assessment points scheduled in 2003 and 2010 and to investigate the associations between FMS, physical activity (PA), and body mass index (BMI). In 2003, self-reported PA, weight and height, and objective FMS scores were collected from 2390 students, and in 2010, similar data were generated from a second sample of 1346 students. FMS were assessed during both assessment phases using 3 identical objective FMS tests that were figure 8 dribbling, jumping laterally, and coordination track tests. This study indicated that the sum index of FMS did not change among the boys and the girls between 2 data collection points. However, findings demonstrated a secular decline in coordination test scores in both gender groups between 2 measurement points but an improvement in girls' object control skills between 2003 and 2010. The results also showed that FMS had a significant main effect on BMI in both gender groups, whereas the main effect of PA on BMI was not significant for either gender group. Results also demonstrated that there was no significant interaction effect between FMS and PA on BMI in either of the girls' or the boys' groups.


Asunto(s)
Índice de Masa Corporal , Ejercicio Físico , Destreza Motora , Adolescente , Estatura , Peso Corporal , Prueba de Esfuerzo , Femenino , Humanos , Masculino , Movimiento
8.
Br J Surg ; 104(3): 222-229, 2017 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-28079258

RESUMEN

BACKGROUND: The combined effects of balanced transfusion ratios and use of procoagulant and antifibrinolytic therapies on trauma-induced exsanguination are not known. The aim of this study was to investigate the combined effect of transfusion ratios, tranexamic acid and products containing fibrinogen on the outcome of injured patients with bleeding. METHODS: A prospective multicentre observational study was performed in six level 1 trauma centres. Injured patients who received at least 4 units of red blood cells (RBCs) were analysed and divided into groups receiving a low (less than 1 : 1) or high (1 or more : 1) ratio of plasma or platelets to RBCs, and in receipt or not of tranexamic acid or fibrinogen products (fibrinogen concentrates or cryoprecipitate). Logistic regression models were used to assess the effect of transfusion strategies on the outcomes 'alive and free from massive transfusion' (at least 10 units of RBCs in 24 h) and early 'normalization of coagulopathy' (defined as an international normalized ratio of 1·2 or less). RESULTS: A total of 385 injured patients with ongoing bleeding were included in the study. Strategies that were independently associated with an increased number of patients alive and without massive transfusion were a high platelet to RBC ratio (odds ratio (OR) 2·67, 95 per cent c.i. 1·24 to 5·77; P = 0·012), a high plasma to RBC ratio (OR 2·07, 1·03 to 4·13; P = 0·040) and treatment with tranexamic acid (OR 2·71, 1·29 to 5·71; P = 0·009). No strategies were associated with correction of coagulopathy. CONCLUSION: A high platelet or plasma to RBC ratio, and use of tranexamic acid were associated with a decreased need for massive transfusion and increased survival in injured patients with bleeding. Early normalization of coagulopathy was not seen for any transfusion ratio, or for use of tranexamic acid or fibrinogen products.


Asunto(s)
Antifibrinolíticos/uso terapéutico , Trastornos de la Coagulación Sanguínea/terapia , Transfusión Sanguínea/métodos , Hemorragia/terapia , Hemostáticos/uso terapéutico , Heridas y Lesiones/complicaciones , Adulto , Anciano , Anciano de 80 o más Años , Trastornos de la Coagulación Sanguínea/diagnóstico , Trastornos de la Coagulación Sanguínea/etiología , Trastornos de la Coagulación Sanguínea/mortalidad , Terapia Combinada , Femenino , Fibrinógeno/uso terapéutico , Hemorragia/etiología , Hemorragia/mortalidad , Humanos , Relación Normalizada Internacional , Modelos Logísticos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Ácido Tranexámico/uso terapéutico , Resultado del Tratamiento , Heridas y Lesiones/mortalidad
9.
Vox Sang ; 112(3): 229-239, 2017 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-28220499

RESUMEN

BACKGROUND AND OBJECTIVES: Traditionally, Denmark has had a high rate of allogeneic red blood cell transfusion caused by a liberal transfusion practice despite the existence of restrictive guidelines. We established a Patient Blood Management programme in a tertiary hospital and report the results of the implementation of evidence-based transfusion practice. MATERIALS AND METHODS: Red blood cell transfusion quality indicators were compared with the evidence-based guideline at hospital and department level. Based on this evaluation, wards were selected for interventions targeting doctors and nurses. The implementation process was monitored by transfusion quality and utilization data over a 3-year period with totally 166 341 admissions in 98 960 mixed, adult medical and surgical patients. RESULTS: At the hospital level, transfusion above the upper guideline limit decreased from 23 to 10% (P < 0·001), and transfusion at or below the restrictive haemoglobin trigger of 7·3 g/dl increased from 7 to 19% (P < 0·001). The percentage of single-unit transfusions increased from 72 to 78% (P < 0·001), and the majority of transfusion rates and volumes decreased significantly. Red cell use decreased with 41% in surgical procedures and 28% in admissions (P < 0·001). CONCLUSION: The intervention was associated with a significant and sustained overall increase in compliance with national guidelines for red blood cell transfusion for non-bleeding patients, and led to significantly fewer patients being exposed to transfusion.


Asunto(s)
Transfusión de Eritrocitos , Adulto , Bases de Datos Factuales , Dinamarca , Práctica Clínica Basada en la Evidencia , Femenino , Estudios de Seguimiento , Hemoglobinas/análisis , Humanos , Unidades de Cuidados Intensivos , Tiempo de Internación , Masculino , Persona de Mediana Edad , Centros de Atención Terciaria
10.
Transfus Med ; 27(4): 268-274, 2017 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-28661030

RESUMEN

OBJECTIVES: To study the effect of red blood cell (RBC) storage duration on long-term mortality in patients undergoing cardiac intervention. BACKGROUND: RBCs undergo numerous structural and functional changes during storage. Observational studies have assessed the association between RBC storage duration and patient outcomes with conflicting results. METHODS: Between January 2006 and December 2014, 82 408 patients underwent coronary angiography. Of these, 1856 patients received one to four RBC units within 30 days after this procedure. Patients were allocated according to length of RBC storage duration: short-term (≤11 days), intermediate (IM)-term (12-23 days) and long-term (≥24 days). The study endpoints were 30-day and long-term all-cause mortality. RESULTS: A total of 4168 RBC units were given to 1856 patients. The mean RBC storage duration was 8.5 ± 2.1, 17.7 ± 3.4 and 29.9 ± 3.4 days in the short-term, IM-term and long-term storage groups, respectively. There was no difference in baseline characteristics between the groups. The long-term storage group received significantly more units (2.4 ± 1.0 units) as compared to the short-term (2.0 ± 1.0 units; P < 0.001) and IM-term storage group (2.2 ± 1.0 units; P < 0.01). In the survival analysis, there was no significant difference in all-cause mortality between the groups (log-rank: 0.509 for 30-days mortality; 0.493 for 5-year mortality). Additional stratified analysis demonstrated no association between RBC storage duration and long-term mortality. CONCLUSION: This study did not find an association between RBC storage duration and 30-days or long-term mortality in patients undergoing cardiac intervention.


Asunto(s)
Conservación de la Sangre/efectos adversos , Angiografía Coronaria/mortalidad , Transfusión de Eritrocitos/mortalidad , Eritrocitos , Anciano , Anciano de 80 o más Años , Dinamarca , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Sistema de Registros , Estudios Retrospectivos , Factores de Tiempo
11.
Acta Anaesthesiol Scand ; 61(2): 166-175, 2017 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-27910086

RESUMEN

BACKGROUND: Using a restrictive transfusion strategy appears to be safe in sepsis, but there may be subgroups of patients who benefit from transfusion at a higher haemoglobin level. We explored if subgroups of patients with septic shock and anaemia had better outcome when transfused at a higher vs. a lower haemoglobin threshold. METHODS: In post-hoc analyses of the full trial population of 998 patients from the Transfusion Requirements in Septic Shock (TRISS) trial, we investigated the intervention effect on 90-day mortality in patients with severe comorbidity (chronic lung disease, haematological malignancy or metastatic cancer), in patients who had undergone surgery (elective or acute) and in patients with septic shock as defined by the new consensus definition: lactate above 2 mmol/l and the need for vasopressors to maintain a mean arterial pressure above 65 mmHg. RESULTS: The baseline characteristics were mostly similar between the two intervention groups in the different subgroups. There were no differences in the intervention effect on 90-day mortality in patients with chronic lung disease (test of interaction P = 0.31), haematological malignancy (P = 0.47), metastatic cancer (P = 0.51), in those who had undergone surgery (P = 0.99) or in patients with septic shock by the new definition (P = 0.20). CONCLUSION: In exploratory analyses of a randomized trial in patients with septic shock and anaemia, we observed no survival benefit in any subgroups of transfusion at a haemoglobin threshold of 90 g/l vs. 70 g/l.


Asunto(s)
Transfusión Sanguínea , Hemoglobinas/análisis , Choque Séptico/terapia , Anciano , Comorbilidad , Humanos , Persona de Mediana Edad , Choque Séptico/sangre
12.
Acta Anaesthesiol Scand ; 61(10): 1384-1397, 2017 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-28901549

RESUMEN

BACKGROUND: Patients in the intensive care unit (ICU) are often anaemic due to blood loss, impaired red blood cell (RBC) production and increased RBC destruction. In some studies, more than half of the patients were treated with RBC transfusion. During storage, the RBC and the storage medium undergo changes, which lead to impaired transportation and delivery of oxygen and may also promote an inflammatory response. Divergent results on the clinical consequences of storage have been reported in both observational studies and randomised trials. Therefore, we aim to gather and review the present evidence to assess the effects of shorter vs. longer storage time of transfused RBCs for ICU patients. METHODS: We will conduct a systematic review with meta-analyses and trial sequential analyses of randomised clinical trials, and also include results of severe adverse events from large observational studies. Participants will be adult patients admitted to an ICU and treated with shorter vs. longer stored RBC units. We will systematically search the Cochrane Library, MEDLINE, Embase, BIOSIS, CINAHL and Science Citation Index for relevant literature, and we will follow the recommendation by the Cochrane Collaboration and the Preferred Reporting Items for Systemtic Review and Meta-Analysis (PRISMA)-statement. We will assess the risk of bias and random errors, and we will use the Grading of Recommendations, Assessment, Development and Evaluation (GRADE) approach to evaluate the overall quality of evidence. CONCLUSION: We need a high-quality systematic review to summarise the clinical consequences of RBC storage time among ICU patients.


Asunto(s)
Conservación de la Sangre , Transfusión de Eritrocitos , Unidades de Cuidados Intensivos , Conservación de la Sangre/efectos adversos , Protocolos Clínicos , Humanos , Evaluación de Resultado en la Atención de Salud , Revisiones Sistemáticas como Asunto , Factores de Tiempo
13.
Anaesthesia ; 72(10): 1217-1224, 2017 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-28744857

RESUMEN

We wished to evaluate whether inhibition of the systemic inflammatory response by a single pre-operative dose of methylprednisolone reduced markers of early endothelial damage after fast-track total knee arthroplasty. We randomly allocated 70 patients undergoing elective unilateral total knee arthroplasty (1:1) to receive either pre-operative intravenous methylprednisolone 125 mg (methylprednisolone group) or isotonic saline (control group). All procedures were performed under spinal anaesthesia without a tourniquet, using a standardised multimodal analgesic regime. The outcomes included changes in Syndecan-1 concentrations, a marker of glycocalyx degradation, markers of endothelial cell damage and activation (plasma soluble thrombomodulin and sE-Selectin), and permeability by vascular endothelial growth factor, as well as C-reactive protein concentrations. Blood samples were collected at baseline and 2 h, 6 h and 24 h after surgery, with complete sampling from 63 patients for analyses. Methylprednisolone significantly reduced markers of endothelial damage at 24 h following surgery compared with saline (methylprednisolone group vs. control group, adjusted means (SEM)) expressed by circulating Syndecan-1: 11.6 (1.0) ng.ml-1 vs. 13.4 (1.1) ng.ml-1 p = 0.046; soluble thrombomodulin: 5.1 (0.1) ng.ml-1 vs. 5.7 (0.2) ng.ml-1 , p = 0.009; sE-Selectin: 64.8 (1.8) ng.ml-1 vs. 75.7 (1.9) ng.ml-1 , p = 0.001, and vascular endothelial growth factor: 35.3 (2.7) ng.ml-1 vs. 58.5 (2.8) ng.ml-1 , p < 0.001. The effect of the intervention increased with time for soluble thrombomodulin, sE-Selectin and vascular endothelial growth factor, and was more pronounced in patients with high baseline values. Finally, methylprednisolone reduced the C-reactive protein response 24 h postoperatively; 31.1 (1.1) mg.l-1 vs. 68.4 (1.1) mg.l-1 , p < 0.001. Pre-operative administration of methylprednisolone 125 mg reduced circulating markers of endothelial activation and damage, as well as the systemic inflammatory response (C-reactive protein) early after fast-track total knee arthroplasty. These findings may have a positive effect on surgical outcome, but require studies in major surgery.


Asunto(s)
Antiinflamatorios/uso terapéutico , Artroplastia de Reemplazo de Rodilla/efectos adversos , Glucocorticoides/uso terapéutico , Metilprednisolona/uso terapéutico , Premedicación/métodos , Síndrome de Respuesta Inflamatoria Sistémica/prevención & control , Anciano , Anestesia Raquidea/métodos , Antiinflamatorios/administración & dosificación , Biomarcadores/sangre , Proteína C-Reactiva/metabolismo , Método Doble Ciego , Esquema de Medicación , Endotelio Vascular/efectos de los fármacos , Femenino , Glucocorticoides/administración & dosificación , Humanos , Masculino , Metilprednisolona/administración & dosificación , Persona de Mediana Edad , Complicaciones Posoperatorias/prevención & control , Síndrome de Respuesta Inflamatoria Sistémica/etiología
14.
Phys Chem Chem Phys ; 18(24): 16274-80, 2016 Jun 28.
Artículo en Inglés | MEDLINE | ID: mdl-27253752

RESUMEN

A new anion design concept, based on combining a boron atom as the central atom and conjugated systems as ligands, is presented as a route for finding alternative Li-salts for lithium-ion batteries. The properties of a wide range of novel anions designed in this way have been evaluated by DFT calculations focusing on three different fundamental success factors/measures: the strength of the cation-anion interaction, ultimately determining both the solubility and the ionic conductivity, the oxidation limit, determining their possible use vs. high voltage cathodes, and the reduction stability, revealing a possible role of the anion in the SEI-formation at the anode. For a few anions superior properties vs. today's existing or suggested anions are predicted, especially the very low cation-anion interaction strengths are promising features. The design route itself is shown to be versatile in determining the correlation between different choices of ligands and the resulting overall properties - where the most striking feature is the decreased lithium cation interaction energy upon using the (1Z,3Z)-buta-1,3-diene-1,2,3,4-tetracarbonitrile ligands. This also opens avenues for the further design of novel anions beyond those with a boron central atom.

15.
Br J Anaesth ; 116(3): 357-62, 2016 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-26821696

RESUMEN

BACKGROUND: Total hip arthroplasty (THA) is associated with both intraoperative and postoperative blood loss resulting in anaemia and, in some patients, transfusion of red blood cells. Epinephrine enhances coagulation by several mechanisms. We evaluated the effect of intraoperative low dose infusion of epinephrine on intraoperative and early postoperative blood loss. METHODS: After consent, 106 subjects undergoing THA under spinal anaesthesia were randomly assigned to receive an i.v. infusion of either epinephrine 0.05 µg kg(-1) min(-1) or placebo (saline 0.9%) during the entire surgical procedure. Intraoperative tranexamic acid (TXA) was administered to all subjects. The primary outcome was intraoperative blood loss directly measured by drains and weighing swabs. Secondary outcome was total blood loss at 24 h postoperatively calculated using the Gross formula. RESULTS: Of 106 subjects randomized, 6 were excluded, leaving 100 subjects for analyses. Mean duration of surgery was 58 (21) min. Intraoperative blood loss was 343 (95% CI 300-386) ml in the epinephrine group compared with 385 (353-434) ml in the placebo group, P = 0.228. 24 h blood loss was 902 (800-1004) ml in the epinephrine group compared with 1080 (946-1220) ml in the placebo group, P = 0.038. CONCLUSION: In subjects also receiving TXA, intraoperative low dose epinephrine infusion did not reduce intraoperative blood loss in THA but calculated 24 h blood loss was reduced by 180 ml compared with placebo. Further studies on low dose epinephrine in patients at high risk of significant bleeding are warranted. CLINICAL TRIAL REGISTRATION: NCT 01708642.


Asunto(s)
Agonistas alfa-Adrenérgicos/farmacología , Artroplastia de Reemplazo de Cadera , Pérdida de Sangre Quirúrgica/estadística & datos numéricos , Epinefrina/farmacología , Ácido Tranexámico/farmacología , Agonistas alfa-Adrenérgicos/administración & dosificación , Anciano , Antifibrinolíticos/farmacología , Coagulación Sanguínea/efectos de los fármacos , Método Doble Ciego , Epinefrina/administración & dosificación , Femenino , Humanos , Infusiones Intravenosas , Masculino , Resultado del Tratamiento
16.
Lett Appl Microbiol ; 63(4): 282-8, 2016 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-27473388

RESUMEN

UNLABELLED: Yersinia enterocolitica is currently divided into two subspecies: subsp. enterocolitica including highly pathogenic strains of biotype 1B and subsp. palearctica including nonpathogenic strains of biotype 1A and moderately pathogenic strains of biotypes 2-5. In this work, we characterized 162 Y. enterocolitica strains of biotype 1A and 50 strains of biotypes 2-4 isolated from human, animal and food samples by restriction fragment length polymorphism using the HindIII restriction enzyme. Phylogenetic relatedness of 20 representative Y. enterocolitica strains including 15 biotype 1A strains was further studied by the multilocus sequence analysis of four housekeeping genes (glnA, gyrB, recA and HSP60). In all the analyses, biotype 1A strains formed a separate genomic group, which differed from Y. enterocolitica subsp. enterocolitica and from the strains of biotypes 2-4 of Y. enterocolitica subsp. palearctica. Based on these results, biotype 1A strains considered nonpathogenic should not be included in subspecies palearctica containing pathogenic strains of biotypes 2-5. SIGNIFICANCE AND IMPACT OF THE STUDY: Yersinia enterocolitica strains are currently divided into six biotypes and two subspecies. Strains of biotype 1A, which are phenotypically and genotypically very heterogeneous, are classified as subspecies palearctica. In this study, European Y. enterocolitica 1A strains isolated from both human and nonhuman sources were characterized using restriction fragment length polymorphism and multilocus sequence analysis. The European biotype 1A strains formed a separate group, which differed from strains belonging to subspecies enterocolitica and palearctica. This may indicate that the current division between the two subspecies is not sufficient considering the strain diversity within Y. enterocolitica.


Asunto(s)
Tipificación de Secuencias Multilocus/métodos , Polimorfismo de Longitud del Fragmento de Restricción/genética , Yersinia enterocolitica/clasificación , Yersinia enterocolitica/genética , Animales , Chaperonina 60/genética , Girasa de ADN/genética , Microbiología de Alimentos , Genotipo , Glutamato-Amoníaco Ligasa/genética , Humanos , Filogenia , Rec A Recombinasas/genética , Metiltransferasa de ADN de Sitio Específico (Adenina Especifica)/metabolismo , Yersiniosis/microbiología , Yersinia enterocolitica/aislamiento & purificación
17.
Appetite ; 106: 2-12, 2016 11 01.
Artículo en Inglés | MEDLINE | ID: mdl-26407803

RESUMEN

Food manufacturers and policy makers have been tailoring food product ingredient information to consumers' self-reported preference for natural products and concerns over food additives. Yet, the influence of this ingredient information on consumers remains inconclusive. The current study aimed at examining the first step in such influence, which is consumers' attention to ingredient information on food product packaging. Employing the choice-blindness paradigm, the current study assessed whether participants would detect a covertly made change to the naturalness of ingredient list throughout a product evaluation procedure. Results revealed that only few consumers detected the change on the ingredient lists. Detection was improved when consumers were instructed to judge the naturalness of the product as compared to evaluating the product in general. These findings challenge consumers' self-reported use of ingredient lists as a source of information throughout product evaluations. While most consumers do not attend to ingredient information, this tendency can be slightly improved by prompting their consideration of naturalness. Future research should investigate the reasons for consumers' inattention to ingredient information and develop more effective strategies for conveying information to consumers.


Asunto(s)
Conducta de Elección , Comportamiento del Consumidor , Ingredientes Alimentarios , Etiquetado de Alimentos , Embalaje de Alimentos/métodos , Preferencias Alimentarias/psicología , Adulto , Atención , Femenino , Alimentos Orgánicos , Humanos , Masculino , Países Bajos
18.
Clin Genet ; 88(3): 267-72, 2015 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-25225168

RESUMEN

We report four previously undescribed families with germline BRCA1-associated protein-1 gene (BAP1) mutations and expand the clinical phenotype of this tumor syndrome. The tumor spectrum in these families is predominantly uveal malignant melanoma (UMM), cutaneous malignant melanoma (CMM) and mesothelioma, as previously reported for germline BAP1 mutations. However, mutation carriers from three new families, and one previously reported family, developed basal cell carcinoma (BCC), thus suggesting inclusion of BCC in the phenotypic spectrum of the BAP1 tumor syndrome. This notion is supported by the finding of loss of BAP1 protein expression by immunochemistry in two BCCs from individuals with germline BAP1 mutations and no loss of BAP1 staining in 53 of sporadic BCCs consistent with somatic mutations and loss of heterozygosity of the gene in the BCCs occurring in mutation carriers. Lastly, we identify the first reported recurrent mutation in BAP1 (p.R60X), which occurred in three families from two different continents. In two of the families, the mutation was inherited from a common founder but it arose independently in the third family.


Asunto(s)
Carcinoma Basocelular/genética , Predisposición Genética a la Enfermedad , Mutación de Línea Germinal , Proteínas Supresoras de Tumor/genética , Ubiquitina Tiolesterasa/genética , Carcinoma Basocelular/metabolismo , Análisis Mutacional de ADN , Femenino , Haplotipos , Heterocigoto , Humanos , Pérdida de Heterocigocidad , Masculino , Linaje , Polimorfismo de Nucleótido Simple , Proteínas Supresoras de Tumor/metabolismo , Ubiquitina Tiolesterasa/metabolismo
19.
Br J Dermatol ; 182(5): 1085, 2020 05.
Artículo en Inglés | MEDLINE | ID: mdl-31742660
20.
Vox Sang ; 109(3): 257-66, 2015 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-25900643

RESUMEN

BACKGROUND AND OBJECTIVES: This trial explores whether intravenous iron isomaltoside 1000 (Monofer®) results in a better regeneration of haemoglobin levels and prevents anaemia compared to placebo in preoperative non-anaemic patients undergoing cardiac surgery. STUDY DESIGN AND METHODS: The trial is a prospective, double-blind, comparative, placebo-controlled trial of 60 non-anaemic patients undergoing cardiac surgery. The patients were randomized 1:1 to either 1000 mg intravenous iron isomaltoside 1000 administered perioperatively by infusion or placebo. RESULTS: Mean preoperative haemoglobin in the active treatment group was 14·3 g/dl vs. 14·0 g/dl in the placebo group. At discharge 5 days after surgery, haemoglobin levels were reduced to 10·7 and 10·5 g/dl, respectively. One month after surgery, haemoglobin concentration had increased to an average of 12·6 g/dl vs. 11·8 g/dl (p = 0·012) and significantly more patients were non-anaemic in the intravenous iron isomaltoside 1000-treated group compared to the placebo group (38·5% vs. 8·0%; p = 0·019). There were no differences in side-effects between the groups. CONCLUSION: A single perioperative 1000 mg dose of intravenous iron isomaltoside 1000 significantly increased the haemoglobin level and prevented anaemia 4 weeks after surgery, with a short-term safety profile similar to placebo. Future trials on potential clinical benefits of preoperative treatment with intravenous iron in non-anaemic patients are needed.


Asunto(s)
Anemia/tratamiento farmacológico , Enfermedad Coronaria/cirugía , Disacáridos/uso terapéutico , Compuestos Férricos/uso terapéutico , Anciano , Anciano de 80 o más Años , Puente de Arteria Coronaria , Método Doble Ciego , Procedimientos Quirúrgicos Electivos , Femenino , Hemoglobinas/análisis , Humanos , Masculino , Persona de Mediana Edad , Efecto Placebo , Complicaciones Posoperatorias , Estudios Prospectivos , Resultado del Tratamiento
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