776 research outputs found
Infant and early childhood dietary predictors of overweight at age 8 years in the CAPS population
BACKGROUND/OBJECTIVES: Programs to address obesity are a high priority for public policy especially for young children. Research into dietary determinants of obesity is challenging but important for rational planning of interventions to prevent obesity, given that both diet and energy expenditure influence weight status. We investigated whether early life dietary factors were predictive of weight status at 8 years in a cohort of Australian children.
SUBJECTS/METHODS: We used data from the Childhood Asthma Prevention Study-a birth cohort at high risk of asthma. Dietary data (3-day weighed food records) were collected at 18 months and height, weight and waist circumference were collected at 8 years. We assessed the relationship between dietary predictor variables and measures of adiposity using linear regression.
RESULTS: Intakes of protein, meat and fruit at age 18 months were positively associated with measures of adiposity at age 8 years, namely, body mass index and/or waist circumference. We also showed a significant negative relationship between these measures of adiposity at 8 years and intake at 18 months of dairy foods as a percent of total energy, and intake of energy dense cereal-based foods such as cookies and crackers.
CONCLUSIONS: This birth cohort study with rigorous design, measures and analyses, has shown a number of associations between early dietary intake and subsequent adiposity that contribute to the growing evidence base in this important field.National Health and Medical Research Council of AustraliaHjärt- och LungfondenSvenska LäkarsällskapetManuscrip
Hypospadias as a novel feature in spinal bulbar muscle atrophy
Spinal and bulbar muscle atrophy (SBMA) is an X-linked neuromuscular disorder
caused by CAG repeat expansions in the androgen receptor (AR) gene. The SBMA
phenotype consists of slowly progressive neuromuscular symptoms and
undermasculinization features as the result of malfunction of the AR. The latter
mainly includes gynecomastia and infertility. Hypospadias is also a feature of
undermasculinization with an underdeveloped urethra and penis; it has not been
described as part of the SBMA phenotype but has been suggested to be associated
with a prolonged CAG repeat in the AR gene. This study includes the first
epidemiologic description of the co-occurrence of hypospadias and SBMA in
subjects and their male relatives in Swedish population-based health registers,
as well as an additional clinical case. One boy with severe hypospadias was
screened for mutations in the AR gene and was found to have 42 CAG repeats in it,
which is in the full range of mutations causing SBMA later in life. We also
detected a maximum of four cases displaying the combination of SBMA and
hypospadias in our national register databases. This is the third case report
with hypospadias in association with CAG repeat expansions in the AR gene in the
full range known to cause SBMA later in life. Our findings suggest that
hypospadias may be an under diagnosed feature of the SBMA phenotype and we
propose that neurologists working with SBMA further investigate and report the
true prevalence of hypospadias among patients with SBMA.Swedish Research Council, K2012-64X-14506-10-5Stockholm City CouncilFoundation Frimurare Barnhuset in StockholmSwedish Research Council through the Swedish Initiative for Research on Microdata in the Social And Medical Sciences (SIMSAM), 340-2013-5867Accepte
Increased cardiovascular and metabolic morbidity in patients with 21-hydroxylase deficiency : a Swedish population-based national cohort study
CONTEXT: Congenital adrenal hyperplasia (CAH) is lethal in its most severe forms
if not treated with glucocorticoids. However, glucocorticoids may increase the
risk of cardiovascular and metabolic morbidity.
OBJECTIVE: This study aimed to
study cardiovascular and metabolic morbidity in CAH.
DESIGN, SETTING, AND PARTICIPANTS: Patients with CAH due to 21-hydroxylase deficiency (n = 588; >80%
with known CYP21A2 mutations) were compared with controls matched for sex, year,
and place of birth (n = 58 800). Data were obtained by linking national
population-based registers. Subgroup analyses were performed regarding sex,
clinical severity (salt wasting, simple virilizing, nonclassic), CYP21A2 genotype
(null, I2 splice, I172N, P30L), and stratified by the introduction of neonatal
screening, age groups, and nonobesity.
MAIN OUTCOME MEASURES: To study
cardiovascular and metabolic morbidity in CAH. RESULTS: In CAH, both any
cardiovascular and metabolic disorders (OR [odds ratio], 3.9; 95% CI [confidence
interval], 3.1-5.0), and cardiovascular disease (OR, 2.7; 95% CI, 1.9-3.9) were
increased. Separate analyses of the individual diseases showed higher frequencies
in CAH of hypertension, hyperlipidemia, atrial fibrillation, venous
thromboembolism, obesity, diabetes (mainly type 2), obstructive sleep disorder,
thyrotoxicosis, and hypothyroidism. Similar results were seen in the stratified
groups. On the subgroup level, females were generally more affected (especially
I172N and the nonclassic group), as were males with the null genotype.
CONCLUSIONS: CAH was associated with excess cardiovascular and metabolic
morbidity but the mechanism is not certain as the glucocorticoids were not
assessed. Hypothyroidism and obesity may be an effect of close observation.
However, more severe conditions were presumably detected equally in patients and
controls. Screening for diabetes and other metabolic disorders that increase
cardiovascular risk is important.Magn. Bergvalls FoundationKarolinska InstitutetStockholm County CouncilSwedish Research Council through the Swedish Initiative for Research on Microdata in the Social And Medical Sciences, SIMSAM 340-2013-5867Manuscrip
Increased mortality in patients with congenital adrenal hyperplasia due to 21-hydroxylase deficiency
Context: Reports on mortality in patients with congenital adrenal hyperplasia (CAH) are lacking.
Objective: To study mortality and causes of death in CAH.
Design, Setting and Participants: We studied patients with CAH (21-hydroxylase deficiency, n=588; CYP21A2 mutations known, >80%), and compared them with controls (n=58800). Data were derived through linkage of national population-based registers.
Main Outcome Measures: Mortality and causes of death.
Results: The mean age of death was 41.2±26.9 years in CAH patients and 47.7±27.7 years in controls (P<0.001). Among CAH patients 23 (3.9%) had deceased compared to 942 (1.6%) of controls. The hazard ratio (and 95% confidence interval) of death was 2.3(1.2-4.3) in CAH males and 3.5(2.0-6.0) in CAH females. Including only patients born 1952-2009, gave similar total results but only patients with salt-wasting or with unclear phenotype had an increased mortality. The causes of death in CAH patients were adrenal crisis (42%), cardiovascular (32%), cancer (16%), and suicide (10%). There were seven additional deaths in CAH individuals with incomplete or reused personal identification number that could not be analyzed using linkage of registers. Of the latter all except one were deceased before the introduction of neonatal screening in 1986 and most of them in the first weeks of life, probably in an adrenal crisis.
Conclusions: CAH is a potentially lethal condition and was associated with excess mortality due to adrenal crisis. The salt-wasting phenotype seemed to have worse outcome also in children and adults due to adrenal crisis and not only before the introduction of neonatal screening.NonePublishe
Treatment of skeletal muscle injury: a review
Skeletal muscle injuries are the most common sports-related injuries and present a challenge in primary care and sports medicine. Most types of muscle injuries would follow three stages: the acute inflammatory and degenerative phase, the repair phase and the remodeling phase. Present conservative treatment includes RICE (rest, ice, compression, elevation), nonsteroidal anti-inflammatory drugs (NSAIDs) and physical therapy. However, if use improper, NSAIDs may suppress an essential inflammatory phase in the healing of injured skeletal muscle. Furthermore, it remains controversial whether or not they have adverse effects on the healing process or on the tensile strength. However, several growth factors might promote the regeneration of injured skeletal muscle, many novel treatments have involved on enhancing complete functional recovery. Exogenous growth factors have been shown to regulate satellite cell proliferation, differentiation and fusion in myotubes in vivo and in vitro, TGF-β1 antagonists behave as inhibitors of TGF-β1. They prevent collagen deposition and block formation of muscle fibrosis, so that a complete functional recovery can be achieved
The observed association between maternal anxiety and adolescent asthma : children of twin design suggest familial effects
BACKGROUND: Previous studies indicate that maternal anxiety is associated with
asthma in the adolescent child, but mechanisms are unclear. OBJECTIVE: To
investigate the association between maternal anxiety and maternal, self- and
register-based report of asthma in the adolescent child, and whether the
association remains after control of familial confounding (shared environmental
and genetic factors). METHOD: From the Twin and Offspring Study of Sweden, 1691
mothers (1058 twins) and their adolescent child were included. The association
between maternal self-reported anxiety (Beck Anxiety Inventory (BAI) and
Karolinska Scales of Personality (KSP) somatic or psychic anxiety) and asthma
based on subjective (maternal or child report) or objective (register-based
diagnosis and medication) measures were analysed using logistic regression. The
children-of-twins design was used to explore whether genes or environment
contribute to the association. RESULTS: Maternal BAI anxiety (OR 2.02, CI
1.15-3.55) was significantly associated with adolescent asthma reported by the
mother. Maternal KSP somatic anxiety (OR 1.74, CI 1.04-2.91) and psychic anxiety
(OR 1.74, CI 1.05-2.86) was significantly associated with breathlessness reported
by the adolescent child. In contrast, maternal anxiety was not associated with
increased risk for the register-based outcomes of asthma diagnosis or medication.
The results remained also after adjusting for covariates and the
children-of-twins analyses which indicate that the association was due to
familial confounding. CONCLUSIONS: We found some associations between maternal
anxiety and subjectively reported offspring asthma or breathlessness which may be
due to familial effects. A likely candidate for explaining this familial
confounding is heritable personality traits associated with both anxiety and
subjective measures of asthma.NonePublishe
Correlation of computed tomography with carotid plaque transcriptomes associates calcification with lesion-stabilization
Background and aims: Unstable carotid atherosclerosis causes stroke, but methods to identify patients and lesions at
risk are lacking. We recently found enrichment of genes associated with calcification in carotid plaques from asymptomatic patients. Here, we hypothesized that calcification represents a stabilising feature of plaques and investigated how macro-calcification, as estimated by computed tomography (CT), correlates with gene expression profiles in lesions.
Methods: Plaque calcification was measured in pre-operative CT angiographies. Plaques were sorted into high- and lowcalcified, profiled with microarrays, followed by bioinformatic analyses. Immunohistochemistry and qPCR were performed to evaluate the findings in plaques and arteries with medial calcification from chronic kidney disease patients.
Results: Smooth muscle cell (SMC) markers were upregulated in high-calcified plaques and calcified plaques
from symptomatic patients, whereas macrophage markers were downregulated. The most enriched processes in
high-calcified plaques were related to SMCs and extracellular matrix (ECM) organization, while inflammation,
lipid transport and chemokine signaling were repressed. These findings were confirmed in arteries with high
medial calcification. Proteoglycan 4 (PRG4) was identified as the most upregulated gene in association with
plaque calcification and found in the ECM, SMA+ and CD68+/TRAP + cells.
Conclusions: Macro-calcification in carotid lesions correlated with a transcriptional profile typical for stable
plaques, with altered SMC phenotype and ECM composition and repressed inflammation. PRG4, previously not
described in atherosclerosis, was enriched in the calcified ECM and localized to activated macrophages and
smooth muscle-like cells. This study strengthens the notion that assessment of calcification may aid evaluation of
plaque phenotype and stroke risk.The European Union’s Horizon 2020/Marie Sklodowska-Curie grant agreement No 722609 (INTRICARE);Swedish Heart and Lung FoundationSwedish Research Council (K2009-65X-2233-01-3, K2013- 65X-06816-30-4, 349-2007-8703)Uppdrag Besegra Stroke (P581/ 2011-123)Stockholm County Council (ALF2011-0260, ALF-2011- 0279)Swedish Society for Medical ResearchTore Nilsson’s FoundationMagnus Bergvall’s FoundationKarolinska Institutet FoundationEuropean Commission (722609)Publishe
Варикозное расширение в системе суральных вен: диагностика, лечение, результаты
ВАРИКОЗНОЕ РАСШИРЕНИЕ ВЕН /ДИАГН /ТЕРКРОВЕНОСНЫХ СОСУДОВ БОЛЕЗНИРЕЦИДИВВЕНЫ /ПАТОЛО
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