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1.
Science ; 380(6652): eadg1412, 2023 06 30.
Artículo en Inglés | MEDLINE | ID: mdl-37384683

RESUMEN

Strausfeld et al. (Report, 24 Nov 2022, p. 905) claim that Cambrian fossilized nervous tissue supports the interpretation that the ancestral panarthropod brain was tripartite and unsegmented. We argue that this conclusion is unsupported, and developmental data from living onychophorans contradict it.


Asunto(s)
Artrópodos , Evolución Biológica , Encéfalo , Encéfalo/anatomía & histología , Encéfalo/crecimiento & desarrollo , Artrópodos/anatomía & histología , Artrópodos/crecimiento & desarrollo , Fósiles
2.
Rev Sci Instrum ; 92(3): 033538, 2021 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-33820020

RESUMEN

The TOFOR time-of-flight (TOF) neutron spectrometer at the Joint European Torus (JET) is composed of 5 start (S1) and 32 stop (S2) scintillation detectors. Recently, the data acquisition system (DAQ) of TOFOR was upgraded to equip each of the 37 detectors with its own waveform digitizer to allow for correlated time and pulse height analysis of the acquired data. Due to varying cable lengths and different pulse processing pathways in the new DAQ system, the 160 (5 · 32) different TOF pairs of start-stop detectors must be time-aligned to enable the proper construction of a summed TOF spectrum. Given the time (energy) resolution required by the entire spectrometer system to measure different plasma neutron emission components, it is of importance to align the detector pairs to each other with sub-nanosecond precision. Previously, the alignment partially depended on using fusion neutron data from Ohmic heating phases of JET experimental pulses. The dependence on fusion neutron data in the time alignment process is, however, unsatisfactory as it involves data one would wish to include in an independent analysis for physics results. In this work, we describe a method of time-aligning the detector pairs by using gamma rays. Given the known geometry and response of TOFOR to gamma rays, the time alignment of the detector pairs is found by examining gamma events interacting in coincidence in both S1-S1 and S1-S2 detector combinations. Furthermore, a technique for separating neutron and gamma events in the different detector sets is presented. Finally, the time-aligned system is used to analyze neutron data from Ohmic phases for different plasma conditions and to estimate the Ohmic fuel ion temperature.

3.
Public Health ; 175: 148-155, 2019 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-31494336

RESUMEN

OBJECTIVES: In this article, we present death and myocardial infarction (MI) incidences over 22 years in relation to possible risk factors and their explanatory value. STUDY DESIGN: In 1993, 980 middle-aged Swedish men in an automotive industry were surveyed at a health checkup as part of the Renault-Volvo Coeur project. The Swedish cohort was revisited in 2015. METHODS: In 2015, incident MIs were identified using postal questionnaires, hospital records, and the Swedish national MI and death registers. The statistical results were given as odds ratios (ORs) and pseudo-R2 (PR2), showing the proportion of variation in risk explained by logistic models. RESULTS: One hundred and four deaths (4.6 per 1000 person-years) and 89 first MIs (4.2 per 1000 person-years) were identified. The Framingham risk index showed the strongest association with MI (OR = 23; 95% confidence interval [CI] = 5.42, 96.9), comparing the fifth quintile with the first. The all-cause death showed an OR of 3.2 (95% CI = 1.65, 6.08), with a suggested U-shape over quintiles. The percentages of PR2 for MI and death were 8.8% and 6.6%, respectively. All risk factors together explained 22% of the variation in risk of MI. Comparing mortality in men living alone with those married yielded an OR of 3.78, which was found to be statistically significant. The corresponding OR for MI was not significant. CONCLUSIONS: Traditional risk factors were confirmed but explained a modest proportion of the risk variation.


Asunto(s)
Mortalidad/tendencias , Infarto del Miocardio/epidemiología , Estudios de Cohortes , Empleo/estadística & datos numéricos , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Factores de Riesgo , Suecia/epidemiología
4.
Acta Paediatr ; 108(9): 1704-1708, 2019 09.
Artículo en Inglés | MEDLINE | ID: mdl-30830968

RESUMEN

AIM: Obesity may start early in life. We investigated relationships between size and body composition variables in infancy and at 4 years of age using valid estimates of body composition. The results were compared to those obtained when body mass index (BMI) was used to estimate body fatness at 4 years. METHODS: Using air displacement plethysmography, size, fat mass and fat-free mass were studied, between 2007 and 2015, in 253 full-term healthy Swedish children at 1 week, 12 weeks and 4 years of age. RESULTS: Positive associations between variables in infancy and at 4 years were found at 1 and 12 weeks for weight, height, BMI, fat-free mass and fat-free mass index (p ≤ 0.002) and for fat mass, per cent body fat and fat mass index (p ≤ 0.04) at 12 weeks. Fat mass gained during infancy correlated positively (p ≤ 0.031) with per cent fat mass, fat mass index and BMI, all at 4 years. In girls, gains in fat-free mass during infancy correlated with BMI (p = 0.0005) at 4 years. CONCLUSION: The results provide information regarding body composition trajectories during early life and demonstrate limitations of BMI as a proxy for body fatness when relating early weight gain to variables, relevant for later obesity risk.


Asunto(s)
Tejido Adiposo , Composición Corporal , Índice de Masa Corporal , Preescolar , Femenino , Humanos , Lactante , Recién Nacido , Estudios Longitudinales , Masculino , Pletismografía
5.
Ecology ; 99(11): 2515-2524, 2018 11.
Artículo en Inglés | MEDLINE | ID: mdl-30248177

RESUMEN

Self-facilitation allows populations to persist under disturbance by ameliorating experienced stress. In coastal ecosystems, eutrophication and declines of large predatory fish are two common disturbances that can synergistically impact habitat-forming plants by benefitting ephemeral algae. In theory, density-dependent intraspecific plant facilitation could weaken such effects by ameliorating the amount of experienced stress. Here, we tested whether and how shoot density of a common aquatic plant (Myriophyllum spicatum) alters the response of individual plants to eutrophication and exclusion of large predatory fish, using a 12-week cage experiment in the field. Results showed that high plant density benefitted individual plant performance, but only when the two stressors were combined. Epiphytic algal biomass per plant more than doubled in cages that excluded large predatory fish, indicative of a trophic cascade. Moreover, in this treatment, individual shoot biomass, as well as number of branches, increased with density when nutrients were added, but decreased with density at ambient nutrient levels. In contrast, in open cages that large predatory fish could access, epiphytic algal biomass was low and individual plant biomass and number of branches were unaffected by plant density and eutrophication. Plant performance generally decreased under fertilization, suggesting stressful conditions. Together, these results suggest that intraspecific plant facilitation occurred only when large fish exclusion (causing high epiphyte load) was accompanied by fertilization, and that intraspecific competition instead prevailed when no nutrients were added. As coastal ecosystems are increasingly exposed to multiple and often interacting stressors such as eutrophication and declines of large predatory fish, maintaining high plant density is important for ecosystem-based management.


Asunto(s)
Ecosistema , Eutrofización , Animales , Biomasa , Peces , Plantas
6.
Scand J Prim Health Care ; 36(2): 207-215, 2018 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-29633886

RESUMEN

OBJECTIVE: The aim of this study is to describe patients with heart failure and an ejection fraction (EF) of more than or equal to 40%, managed in both Primary- and Hospital based outpatient clinics separately with their prognosis, comorbidities and risk factors. Further to compare the heart failure medication in the two groups. DESIGN: We used the prospective Swedish Heart Failure Registry to include 9654 out-patients who had HF and EF ≥40%, 1802 patients were registered in primary care and 7852 in hospital care. Descriptive statistical tests were used to analyze base line characteristics in the two groups and multivariate logistic regression analysis to assess mortality rate in the groups separately. SETTING: The prospective Swedish Heart Failure Registry. SUBJECTS: Patients with heart failure and an ejection fraction (EF) of more than or equal to 40%. MAIN OUTCOME MEASURES: Comorbidities, risk factors and mortality. RESULTS: Mean-age was 77.5 (primary care) and 70.3 years (hospital care) p < 0.0001, 46.7 vs. 36.3% women respectively (p < 0.0001) and EF ≥50% 26.1 vs. 13.4% (p < 0.0001). Co-morbidities were common in both groups (97.2% vs. 92.3%), the primary care group having more atrial fibrillation, hypertension, ischemic heart disease and COPD. According to the multivariate logistic regression analysis smoking, COPD and diabetes were the most important independent risk factors in the primary care group and valvular disease in the hospital care group. All-cause mortality during mean follow-up of almost 4 years was 31.5% in primary care and 27.8% in hospital care. One year-mortality rates were 7.8%, and 7.0% respectively. CONCLUSION: Any co-morbidity was noted in 97% of the HF-patients with an EF of more than or equal to 40% managed at primary care based out-patient clinics and these patients had partly other independent risk factors than those patients managed in hospital care based outpatients clinics. Our results indicate that more attention should be payed to manage COPD in the primary care group. KEY POINTS 97% of heart failure patients with an ejection fraction of more than or equal to 40% managed at primary care based out-patient clinics had any comorbidity. Patients in primary care had partly other independent risk factors than those in hospital care. All-cause mortality during mean follow-up of almost 4 years was higher in primary care compared to hospital care. In matched HF-patients RAS-antagonists, beta-blockers as well as the combination of the two drugs were more seldom prescribed when managed in primary care compared with hospital care.


Asunto(s)
Atención Ambulatoria , Insuficiencia Cardíaca/etiología , Hospitales , Atención Primaria de Salud , Anciano , Anciano de 80 o más Años , Fibrilación Atrial/epidemiología , Comorbilidad , Complicaciones de la Diabetes , Femenino , Insuficiencia Cardíaca/tratamiento farmacológico , Insuficiencia Cardíaca/mortalidad , Insuficiencia Cardíaca/fisiopatología , Enfermedades de las Válvulas Cardíacas , Humanos , Hipertensión/epidemiología , Modelos Logísticos , Masculino , Isquemia Miocárdica/epidemiología , Pronóstico , Estudios Prospectivos , Enfermedad Pulmonar Obstructiva Crónica/epidemiología , Sistema de Registros , Factores de Riesgo , Fumar/efectos adversos , Volumen Sistólico , Suecia/epidemiología
7.
Eur J Clin Nutr ; 2017 Aug 23.
Artículo en Inglés | MEDLINE | ID: mdl-28832576

RESUMEN

BACKGROUND/OBJECTIVES: Knowledge of longitudinal body composition development is required to identify the mechanisms behind childhood overweight and obesity and to prevent these conditions. However, accurate data on this development in early childhood are lacking. Our aim was to describe the longitudinal body composition development in healthy young Swedish children. SUBJECTS/METHODS: Body size and composition were assessed in 26 children using air-displacement plethysmography (1 and 12 weeks and 4.4 years of age) and isotope dilution (1.5 and 3 years of age) and compared with available reference data. RESULTS: Body fat (%) for boys (n=16) was 12.8±3.9 (1 week), 25.6±4.8 (12 weeks), 28.2±3.8 (1.5 years), 27.3±5.1 (3 years) and 26.1±3.5 (4.4 years). For girls (n=10) these values were 15.3±2.9, 25.7±3.9, 27.9±3.3, 26.3±7.2 and 26.0±5.3, respectively. These values were above the Fomon reference values at 1.5 years of age and later and higher than the Butte reference (P<0.05) for boys at 1.5 years of age. At all ages the coefficients of variation were higher for body fat (%) (12-30%) than for BMI (4-11%). CONCLUSIONS: At 4 years of age our children had more body fat than indicated by reference data. This high level may have already been established at 1.5 years of age but our small sample and the lack of appropriate reference data limit the possibility of drawing firm conclusions. Our results demonstrate the limitations of BMI when investigating overweight and obesity in early life and highlight the need for appropriate reference body composition data in infants and young children.European Journal of Clinical Nutrition advance online publication, 23 August 2017; doi:10.1038/ejcn.2017.125.

8.
Proc Biol Sci ; 284(1859)2017 Jul 26.
Artículo en Inglés | MEDLINE | ID: mdl-28724727

RESUMEN

Trophic cascades occur in many ecosystems, but the factors regulating them are still elusive. We suggest that an overlooked factor is that trophic interactions (TIs) are often scale-dependent and possibly interact across spatial scales. To explore the role of spatial scale for trophic cascades, and particularly the occurrence of cross-scale interactions (CSIs), we collected and analysed food-web data from 139 stations across 32 bays in the Baltic Sea. We found evidence of a four-level trophic cascade linking TIs across two spatial scales: at bay scale, piscivores (perch and pike) controlled mesopredators (three-spined stickleback), which in turn negatively affected epifaunal grazers. At station scale (within bays), grazers on average suppressed epiphytic algae, and indirectly benefitted habitat-forming vegetation. Moreover, the direction and strength of the grazer-algae relationship at station scale depended on the piscivore biomass at bay scale, indicating a cross-scale interaction effect, potentially caused by a shift in grazer assemblage composition. In summary, the trophic cascade from piscivores to algae appears to involve TIs that occur at, but also interact across, different spatial scales. Considering scale-dependence in general, and CSIs in particular, could therefore enhance our understanding of trophic cascades.


Asunto(s)
Ecosistema , Peces , Cadena Alimentaria , Animales , Bahías , Biomasa , Conducta Predatoria , Suecia
9.
J Sci Med Sport ; 20(9): 814-818, 2017 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-28389219

RESUMEN

OBJECTIVES: The aim of the present study was to investigate the association between somatic health and former abuse of AAS in former elite male athletes 30 years after the end of their active sports career. DESIGN: Retrospective follow-up study. METHODS: N=996 former elite male athletes were sent a questionnaire concerning sociodemographic variables, previous and past sport activity and lifetime prevalence of seeking professional help for health problems. N=683 (68.6%) answered the questionnaire. The lifetime prevalence of AAS-abuse was 21% (n=143), while 79% (n=540) did not admit having ever used AAS. RESULTS: Former AAS-abuse was associated with tendon ruptures (p=0.01), depression (p=0.001), anxiety (p=0.01) and lower prevalence of prostate hypertrophy (p=0.01) and decreased libido (p=0.01). Former advanced AAS-abusers had higher anxiety (p=0.004) compared to the former less advanced AAS-abusers. Moreover, former advanced AAS-abusers, compared to AAS-naïves, reported more psychiatric problems (p=0.002), depression (p=0.003) and anxiety (p=0.00). CONCLUSIONS: A former AAS-abuse seems to be associated with some somatic and mental health problem, although a former less advanced AAS-abuse is related to lower incidence of prostate hypertrophy. The results raise the question whether some of these associations might be dose- and frequency dependent. These findings should however be seen as hypothesis generating and further studies are needed.


Asunto(s)
Anabolizantes/efectos adversos , Atletas , Doping en los Deportes , Levantamiento de Peso , Anciano , Ansiedad/epidemiología , Depresión/epidemiología , Estudios de Seguimiento , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Prevalencia , Próstata/patología , Estudios Retrospectivos , Rotura/epidemiología , Encuestas y Cuestionarios , Suecia , Traumatismos de los Tendones/epidemiología
10.
Clin Microbiol Infect ; 22(11): 934-940, 2016 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-27497810

RESUMEN

OBJECTIVES: To investigate the prevalence and temporal development of N-methyl-d-aspartate receptor (NMDAR) autoantibodies in relation to neurocognitive performance in patients with herpes simplex encephalitis (HSE). METHODS: This prospective observational study enrolled a total of 49 HSE patients within a randomized controlled trial of valacyclovir. Cerebrospinal fluid and serum samples were drawn in the initial stage of disease, after 2 to 3 weeks and after 3 months. Anti-NMDAR IgG was detected with HEK293 cells transfected with plasmids encoding the NMDA NR1 type glutamate receptor. A batch of neurocognitive tests, including the Mattis Dementia Rating Scale (MDRS), Glasgow Coma Scale (GCS), Reaction Level Scale (RLS85), Mini-Mental State Examination (MMSE) and National Institutes of Health (NIH) stroke scale, was performed during 24 months' follow-up. RESULTS: Anti-NMDAR IgG was detected in 12 of 49 participants. None were antibody positive in the initial stage of disease. In ten of 12 positive cases, specific antibodies were detectable only after 3 months. Notably, the development of NMDAR autoantibodies was associated with significantly impaired recovery of neurocognitive performance. After 24 months' follow-up, the median increase in MDRS total score was 1.5 vs. 10 points in antibody-positive and -negative participants (p=0.018). CONCLUSIONS: Anti-NMDAR autoimmunity is a common complication to HSE that develops within 3 months after onset of disease. The association to impaired neurocognitive recovery could have therapeutical implications, as central nervous system autoimmunity is potentially responsive to immunotherapy.


Asunto(s)
Autoanticuerpos/metabolismo , Encefalitis por Herpes Simple/inmunología , Encefalitis por Herpes Simple/psicología , Receptores de N-Metil-D-Aspartato/inmunología , Aciclovir/administración & dosificación , Aciclovir/análogos & derivados , Aciclovir/uso terapéutico , Adulto , Anciano , Anciano de 80 o más Años , Encefalitis por Herpes Simple/tratamiento farmacológico , Femenino , Células HEK293 , Humanos , Masculino , Persona de Mediana Edad , Pruebas Neuropsicológicas , Estudios Prospectivos , Suecia , Valaciclovir , Valina/administración & dosificación , Valina/análogos & derivados , Valina/uso terapéutico
12.
Scand J Med Sci Sports ; 26(7): 844-53, 2016 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-26283647

RESUMEN

The purpose of this study was to evaluate calf muscle endurance in a seated position 3 months after an Achilles tendon rupture and to evaluate how the ability to perform standardized seated heel-rises correlated to the single-leg standing heel-rise test and to patient-reported symptoms evaluated with the Achilles tendon Total Rupture Score (ATRS) 3 and 6 months after the injury. Ninety-three patients were included from a cohort of 101 patients participating in a prospective, randomized controlled trial comparing surgical and nonsurgical treatment after Achilles tendon rupture. Forty-seven patients were treated surgically and 46 nonsurgically. Ninety-one patients out of 93 (98%) could perform the standardized seated heel-rises. At the 3-month follow-up, there was a significant difference (P < 0.001) between the injured and the healthy side performing standardized seated heel-rises. There were also significant correlations (r = 0.29-0.37, P = < 0.05) between the standardized seated heel-rises and ATRS 3 and 6 months after injury in the group who could not perform single-leg standing heel-rises. There were no significant differences between the surgical and nonsurgical treatment groups. The evaluation of standardized seated heel-rises appears to be a useful tool to quantify progress and predict future functional performance and patient-reported symptoms.


Asunto(s)
Tendón Calcáneo/lesiones , Músculo Esquelético , Resistencia Física , Recuperación de la Función , Rotura/rehabilitación , Traumatismos de los Tendones/rehabilitación , Adulto , Femenino , Humanos , Pierna , Masculino , Persona de Mediana Edad , Procedimientos Ortopédicos , Rotura/cirugía , Traumatismos de los Tendones/cirugía , Resultado del Tratamiento , Adulto Joven
13.
Pediatr Obes ; 10(5): 388-94, 2015 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-25521831

RESUMEN

BACKGROUND: Intrauterine life may be a critical period for programming childhood obesity; however, there is insufficient knowledge concerning how gestational weight gain (GWG) affects infant fat mass (FM) and fat-free mass (FFM). OBJECTIVES: The aim of this study was to investigate relationships between GWG according to Institute of Medicine (IOM) recommendations and infant size, FM and FFM. We also investigated if the associations were different for normal-weight and overweight/obese women. METHODS: This study included 312 healthy Swedish mother-infant pairs. Infant body composition at 1 week of age was assessed using air-displacement plethysmography. Maternal GWG was defined as below, within or above the 2009 IOM recommendations. Multiple regression analyses were used. RESULTS: Compared with women whose weight gain was within IOM recommendations, women with weight gain below the recommendations had infants that were shorter (-0.7 cm, P = 0.008) when adjusting for confounders. Normal-weight women exceeding IOM recommendations had infants with higher FM (+58 g, P = 0.008) compared with normal-weight women who gained within the recommendations. No corresponding association was observed for overweight/obese women. CONCLUSIONS: Inadequate GWG was associated with shorter infants, while excessive GWG was associated with greater infant FM for women who were of normal weight before pregnancy.


Asunto(s)
Mujeres Embarazadas , Aumento de Peso , Adulto , Composición Corporal , Índice de Masa Corporal , Femenino , Humanos , Recién Nacido , Sobrepeso , Pletismografía , Periodo Posparto , Embarazo , Complicaciones del Embarazo , Resultado del Embarazo , Suecia/epidemiología , Adulto Joven
14.
Scand J Med Sci Sports ; 24(1): 152-8, 2014 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-22716232

RESUMEN

This study evaluated the short-term recovery of function after an acute Achilles tendon rupture, measured by a single-legged heel-rise test, with main emphasis on the relation to the patient-reported outcomes and fear of physical activity and movement (kinesiophobia). Eighty-one patients treated surgically or non-surgically with early active rehabilitation after Achilles tendon rupture were included in the study. Patient's ability to perform a single-legged heel-rise, physical activity level, patient-reported symptoms, general health, and kinesiophobia was evaluated 12 weeks after the injury. The heel-rise test showed that 40 out of 81 (49%) patients were unable to perform a single heel-rise 12 weeks after the injury. We found that patients who were able to perform a heel-rise were significantly younger, more often of male gender, reported a lesser degree of symptoms, and also had a higher degree of physical activity at 12 weeks. There was also a significant negative correlation between kinesiophobia and all the patient-reported outcomes and the physical activity level. The heel-rise ability appears to be an important early achievement and reflects the general level of healing, which influences patient-reported outcome and physical activity. Future treatment protocols focusing on regaining strength early after the injury therefore seem to be of great importance. Kinesiophobia needs to be addressed early during the rehabilitation process.


Asunto(s)
Tendón Calcáneo/lesiones , Actividad Motora , Recuperación de la Función , Traumatismos de los Tendones/terapia , Tendón Calcáneo/cirugía , Adulto , Factores de Edad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Trastornos Fóbicos/psicología , Pronóstico , Rotura/psicología , Rotura/terapia , Factores Sexuales , Traumatismos de los Tendones/psicología , Resultado del Tratamiento , Adulto Joven
15.
Scand J Med Sci Sports ; 24(6): 1000-5, 2014 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-24033718

RESUMEN

Physical training has been shown to reduce mortality in normal subjects, and athletes have a healthier lifestyle after their active career as compared with normal subjects. Since the 1950s, the use of anabolic androgenic steroids (AAS) has been frequent, especially in power sports. The aim of the present study was to investigate mortality, including causes of death, in former Swedish male elite athletes, active 1960-1979, in wrestling, powerlifting, Olympic lifting, and the throwing events in track and field when the suspicion of former AAS use was high. Results indicate that, during the age period of 20-50 years, there was an excess mortality of around 45%. However, when analyzing the total study period, the mortality was not increased. Mortality from suicide was increased 2-4 times among the former athletes during the period of 30-50 years of age compared with the general population of men. Mortality rate from malignancy was lower among the athletes. As the use of AAS was marked between 1960 and 1979 and was not doping-listed until 1975, it seems probable that the effect of AAS use might play a part in the observed increased mortality and suicide rate. The otherwise healthy lifestyle among the athletes might explain the low malignancy rates.


Asunto(s)
Causas de Muerte , Suicidio/estadística & datos numéricos , Atletismo/estadística & datos numéricos , Levantamiento de Peso/estadística & datos numéricos , Lucha/estadística & datos numéricos , Adulto , Anabolizantes/uso terapéutico , Doping en los Deportes , Humanos , Estilo de Vida , Masculino , Persona de Mediana Edad , Mortalidad , Neoplasias/mortalidad , Suecia/epidemiología , Adulto Joven
16.
Br J Sports Med ; 47(15): 965-9, 2013 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-23613517

RESUMEN

BACKGROUND: The knowledge concerning the long-term effect of former anabolic androgenic steroids (AAS)-use on mental health is sparse. AIM: This study aims to investigate whether previous AAS-use affects mental health, present sociodemographic data, sport activity and substance abuse in a retrospective 30-year follow-up study of former elite athletes. METHODS: Swedish male-elite power sport athletes (n=683) on the top 10 national ranking lists during any of the years 1960-1979 in wrestling, Olympic lifting, powerlifting and the throwing events in track and field answered a questionnaire. RESULTS: At least 20% of the former athletes admitted previous AAS-use. They had more often sought professional expertise for mental problems and had used illicit drugs compared to those not having used AAS. The AAS-users also differed in former sport activity pattern compared to non AAS-users. CONCLUSIONS: It is clear that a relationship exists between use of AAS and mental-health problems. Further studies need to be done in order to clarify this relationship.


Asunto(s)
Anabolizantes/efectos adversos , Doping en los Deportes/psicología , Trastornos Mentales/epidemiología , Deportes/psicología , Trastornos Relacionados con Sustancias/epidemiología , Adulto , Anciano , Anciano de 80 o más Años , Estudios de Seguimiento , Humanos , Masculino , Salud Mental , Persona de Mediana Edad , Aceptación de la Atención de Salud/estadística & datos numéricos , Estudios Retrospectivos , Deportes/estadística & datos numéricos , Trastornos Relacionados con Sustancias/psicología , Suecia/epidemiología
17.
Scand J Immunol ; 77(2): 135-43, 2013 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-23216075

RESUMEN

Congenital cytomegalovirus (CMV) infection is the most common congenital infection causing childhood morbidity. The pathogenetic mechanisms behind long-term sequelae are unclear, but long-standing viremia as a consequence of the inability to convert the virus to a latent state has been suggested to be involved. Whereas primary CMV infection in adults is typically rapidly controlled by the immune system, children have been shown to excrete virus for years. Here, we compare T cell responses in children with congenital CMV infection, children with postnatal CMV infection and adults with symptomatic primary CMV infection. The study groups included 24 children with congenital CMV infection, 19 children with postnatal CMV infection and eight adults with primary CMV infection. Among the infants with congenital CMV infection, 13 were symptomatic. T cell responses were determined by analysis of interferon gamma production after stimulation with CMV antigen. Our results show that whereas adults display high CMV-specific CD4 T cell responses in the initial phase of the infection, children younger than 2 years have low or undetectable responses that appear to increase with time. There were no differences between groups with regard to CD8 T cell function. In conclusion, inadequate CD 4 T cell function seems to be involved in the failure to get immune control of the CMV infection in children younger than 2 years of age with congenital as well as postnatal CMV infection.


Asunto(s)
Linfocitos T CD4-Positivos/inmunología , Linfocitos T CD8-positivos/inmunología , Infecciones por Citomegalovirus/inmunología , Citomegalovirus/inmunología , Adolescente , Adulto , Linfocitos T CD4-Positivos/metabolismo , Linfocitos T CD8-positivos/metabolismo , Preescolar , Epítopos de Linfocito T/inmunología , Femenino , Humanos , Lactante , Recién Nacido , Interferón gamma/biosíntesis , Recuento de Linfocitos , Masculino , Gemelos , Adulto Joven
18.
J Bone Joint Surg Br ; 94(11): 1573-8, 2012 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-23109641

RESUMEN

Post-operative complications after total hip or knee replacement can delay recovery, prolong hospitalisation, increase rates of re-admission and, in the most severe cases, lead to long-term disability or even death. In this analysis of pooled data from four large, randomised, phase III clinical trials that compared the oral, direct Factor Xa inhibitor rivaroxaban with subcutaneous enoxaparin for the prevention of venous thromboembolism after total hip or knee replacement (n = 12,729), the incidence of complications, including bleeding and adverse events related to surgery (such as wound infection, wound dehiscence and haemarthrosis) are reported. Interventions and procedures relating to surgery are also compared between the groups. Bleeding events, including excessive wound haematoma and surgical-site bleeding, occurred at similar rates in the rivaroxaban and enoxaparin groups. Over the total study duration, adverse surgical events occurred at a similar rate in the rivaroxaban group compared with the enoxaparin group after total knee replacement (2.26% vs. 2.69%, respectively) and total hip replacement (1.48% vs. 1.65%, respectively). Blood loss, wound drainage and transfusion requirements were also similar between the two groups. This analysis shows that the incidence of adverse surgical events with rivaroxaban was similar to enoxaparin.


Asunto(s)
Anticoagulantes/uso terapéutico , Artroplastia de Reemplazo de Tobillo/efectos adversos , Artroplastia de Reemplazo de Rodilla/efectos adversos , Enoxaparina/uso terapéutico , Morfolinas/uso terapéutico , Complicaciones Posoperatorias/tratamiento farmacológico , Tiofenos/uso terapéutico , Anticoagulantes/efectos adversos , Ensayos Clínicos Fase III como Asunto , Enoxaparina/efectos adversos , Hemartrosis , Hemorragia , Humanos , Morfolinas/efectos adversos , Complicaciones Posoperatorias/epidemiología , Ensayos Clínicos Controlados Aleatorios como Asunto , Rivaroxabán , Tiofenos/efectos adversos , Resultado del Tratamiento , Tromboembolia Venosa
19.
J Thromb Haemost ; 10(8): 1515-20, 2012 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-22672318

RESUMEN

BACKGROUND: Venous thromboembolism (VTE) remains a significant complication of major orthopedic surgery, and chronic kidney disease (CKD) is common among elderly patients undergoing total hip replacement (THR). OBJECTIVES: The purpose of this study was to evaluate thrombosis and bleeding outcomes in patients with stage 3B CKD treated with either desirudin or enoxaparin after elective THR. PATIENTS/METHODS: This was a post hoc subgroup analysis of a randomized, multicenter, double-blind study of desirudin vs. enoxaparin in patients undergoing elective THR. RESULTS: Patients received either subcutaneous desirudin 15 mg twice daily or subcutaneous enoxaparin 40 mg once daily. Of the 2078 randomized patients who received study medication, 577 had stage 3B CKD or worse (27.8%), and the proportion of these patients who experienced a major VTE in the enoxaparin treatment group was found to be much higher than in the desirudin treatment group (11.1% vs. 3.4%, model-adjusted odds ratio 3.52, 95% confidence interval 1.48-8.40, P=0.004). There was no statistically significant difference between treatment groups in terms of rates of major bleeding, regardless of stage of renal function. CONCLUSIONS: CKD has been reported previously to increase the risk of bleeding with anticoagulants, and these findings suggest that CKD may also increase the risk of major VTE for patients treated with enoxaparin, but not for patients treated with desirudin. Clinicians should consider the impact of CKD on the risk of VTE when choosing a prophylaxis agent.


Asunto(s)
Anticoagulantes/administración & dosificación , Artroplastia de Reemplazo de Cadera/efectos adversos , Enoxaparina/administración & dosificación , Hirudinas/administración & dosificación , Hemorragia Posoperatoria/prevención & control , Insuficiencia Renal Crónica/complicaciones , Trombosis/prevención & control , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Anticoagulantes/efectos adversos , Esquema de Medicación , Enoxaparina/efectos adversos , Femenino , Hirudinas/efectos adversos , Humanos , Inyecciones Subcutáneas , Modelos Logísticos , Masculino , Persona de Mediana Edad , Estudios Multicéntricos como Asunto , Oportunidad Relativa , Selección de Paciente , Hemorragia Posoperatoria/inducido químicamente , Ensayos Clínicos Controlados Aleatorios como Asunto , Proteínas Recombinantes/administración & dosificación , Proteínas Recombinantes/efectos adversos , Insuficiencia Renal Crónica/diagnóstico , Estudios Retrospectivos , Medición de Riesgo , Factores de Riesgo , Índice de Severidad de la Enfermedad , Trombosis/etiología , Factores de Tiempo , Resultado del Tratamiento , Adulto Joven
20.
J Psychiatr Ment Health Nurs ; 19(7): 594-602, 2012 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-22074617

RESUMEN

The contemporary society is to some extent characterized by longitudinal changes, towards individualization, uncertainty, and risk. Numerous risks and dangers in modern society have been mastered, while others have emerged, often created by human actions. The individual's freedom of choice has increased, but also the responsibility for the choices made. In this society, the risk society, there is a greater need for formative and situation-related knowledge to manage risks. The aims of this paper are to discuss the concept of risk society in the light of everyday experiences made by people with mental disabilities, how challenges can be mastered and positive possibilities can be utilized. Data collection was made through a multistage focus group, and the data were analysed by qualitative content analysis. The results show that characteristics of the risk society are identified by people with mental disabilities. Change and uncertainty, obstacles created by societal institutions, lack of trust, and the need of adapted working conditions are frequently experienced, impersonal relations and feelings of loneliness as well. However, these conditions can be partly counteracted by belonging to an alternative fellowship, which might lead to quality of life-related personal improvements.


Asunto(s)
Actividades Cotidianas/psicología , Personas con Discapacidades Mentales/psicología , Adaptación Psicológica , Adulto , Femenino , Grupos Focales , Humanos , Individualidad , Soledad/psicología , Masculino , Persona de Mediana Edad , Noruega , Riesgo , Asunción de Riesgos , Incertidumbre , Adulto Joven
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