454 research outputs found

    A nuclear RNA-binding cyclophilin in human T cells

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    AbstractCyclophilins (CyPs) are binding proteins for the immunosuppressive drug cyclosporin A (CsA). CyPs are evolutionarily highly conserved proteins present in both pro-and eukaryotes as well as in different subcellular locations. Cyps possess enzymatic activity, namely peptidyl-prolyl cis-trans isomerase (PPIase) activity; CyPs are involved in cellular protein folding and protein interactions. To date, only cyclosporins and proteins are known to interact with CyPs. Here we describe a novel nuclear cyclophilin (hCyP33) from human T cells with an additional RNA-binding domain. This combines for the first time RNA binding and protein folding in one protein

    Associations between birth weight and colon and rectal cancer risk in adulthood

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    AbstractBackgroundBirth weight has inconsistent associations with colorectal cancer, possibly due to different anatomic features of the colon versus the rectum. The aim of this study was to investigate the association between birth weight and colon and rectal cancers separately.Methods193,306 children, born from 1936 to 1972, from the Copenhagen School Health Record Register were followed prospectively in Danish health registers. Colon and rectal cancer cases were defined using the International Classification of Disease version 10 (colon: C18.0–18.9, rectal: 19.9 and 20.9). Only cancers classified as adenocarcinomas were included in the analyses. Cox regressions were used to estimate hazard ratios (HR) and 95% confidence intervals (CI). Analyses were stratified by birth cohort and sex.ResultsDuring 3.8 million person-years of follow-up, 1465 colon and 961 rectal adenocarcinomas were identified. No significant sex differences were observed; therefore combined results are presented. Birth weight was positively associated with colon cancers with a HR of 1.14 (95% CI, 1.04–1.26) per kilogram of birth weight. For rectal cancer a significant association was not observed for birth weights below 3.5kg. Above 3.5kg an inverse association was observed (at 4.5kg, HR=0.77 [95% CI, 0.61–0.96]). Further, the associations between birth weight and colon and rectal cancer differed significantly from each other (p=0.006).ConclusionsBirth weight is positively associated with the risk of adult colon cancer, whereas the results for rectal cancer were inverse only above values of 3.5kg. The results underline the importance of investigating colon and rectal cancer as two different entities

    Influences of the Common FTO rs9939609 Variant on Inflammatory Markers Throughout a Broad Range of Body Mass Index

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    A recent study reported that the fatness associated A-allele of FTO rs9939609 increased plasma high sensitivity C-reactive protein (hs-CRP) levels independent of fatness. We aimed to investigate if this gene variant had fatness-independent effects on plasma hs-CRP and 10 additional circulating obesity-related adipokines throughout a broad range of body mass index (BMI) among Danish men.In a population of 362,200 young men, examined for military service between 1943 and 1977, two groups were identified: 1) a random 1% sample and 2) all obese men (BMI = 31.0 kg/m(2), all of whom were above the 99(th) percentile of this population). At an average age of 49 years (range: 39 through 65 years), 551 men, hereof 231 of the obese, were re-examined, including genotyping and measurement of the fasting circulating inflammatory markers hs-CRP, IL-1β, IL-6, IL-10, IL-18, mip1α, mip1β, sTNFα-R1, TGF-β, TNF-α and leptin. Men with known disease were excluded from the examination. All the inflammatory markers were log-transformed to approximate a normal distribution. Genotype-phenotype relationships were studied using linear regression analyses with the inflammatory markers as the response variable. Significant positive associations between hs-CRP, leptin and a broad range of BMI were observed, but the associations did not significantly differ across FTO rs9939609 genotype. There were no significant associations between the other inflammatory markers, FTO rs9939609 genotype or BMI, respectively.No fatness-independent effects of the FTO rs9939609 A-allele on a series of inflammatory markers were observed in this cohort of healthy middle-aged men representing a broad range of fatness

    Base de datos de flora y fauna en Galicia

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    Sección: NoticiasLa Biblioteca del Instituto de Investigaciones Marinas de Vigo recopila, desde 1984 aproximadamente, una base de datos sobre Galicia que nació a partir de unas citas bibliográficas seleccionadas por un investigador de este centro y se fue ampliando en vista de la enorme solicitud de esta información que nos iban haciendo nuestros usuarios, sobre todo los externos al centroPeer reviewe

    Negative pressure wound treatment for uterine incision necrosis following a cesarean section

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    Extended-spectrum β-lactamase sepsis with concurrent uterine incision dehiscence after cesarean section with T-shaped incision for chorioamnionitis occurred in a 29-year-old patient after her first delivery. Following an exploratory laparotomy with a diagnosis of necrosis of the anterior uterine wall, a uterine negative-pressure wound treatment (NPWT) was performed, successfully avoiding hysterectomy and enabling secondary suture of the uterine wall

    Morbidity, Including Fatal Morbidity, throughout Life in Men Entering Adult Life as Obese

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    Background: The association between obesity in adults and excess morbidity and mortality is well established, but the health impact throughout adult life of being obese in early adulthood needs elucidation. We investigated somatic morbidity, including fatal morbidity, throughout adulthood in men starting adult life as obese. Methods: Among 362,200 Danish young men, examined for military service between 1943 and 1977, all obese (defined as BMI$31.0 kg/m 2), and, as controls, a random 1 % sample of the others was identified. In the age range of 18–25 years, there were 1,862 obese, which encompass the men above the 99.5 percentile, and 3,476 controls. Information on morbidity was obtained via national registers. Cox regression models were used to estimate the relative morbidity assessed as first incidence of disease, occurrence of disease in the year preceding death and prevalent disease at time of death. Results: From age 18 through 80 years the obese had an increased risk of becoming diseased by or die from a broad range of diseases. Generally, the incidence of first event, occurrence in the year prior to death, and prevalence at time of death showed the same pattern. As an example, the relative hazard of type 2 diabetes was constant throughout life at 4.9 (95% confidence intervals [CI]: 4.1–5.9), 5.2 (95 % CI: 3.6–7.5), and 6.8 (95 % CI: 4.6–10.1), respectively. Conclusions: Our findings strongly support the continued need to avoid beginning adult life as obese, as obese young me

    Pain exacerbates chronic mild stress-induced changes in noradrenergic transmission in rats

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    Depression can influence pain and vice versa, yet the biological mechanisms underlying how one influences the pathophysiology of the other remains unclear. Dysregulation of locus coeruleus-noradrenergic transmission is implicated in both conditions, although it is not known whether this effect is exacerbated in cases of co-morbid depression and chronic pain. We studied locus coeruleus activity using immunofluorescence and electrophysiological approaches in rats subjected to unpredictable chronic mild stress (CMS, an experimental model of depression) and/or chronic constriction injury (CCI, a model of chronic neuropathic pain) for 2 weeks. CCI alone had no effect on any of the locus coeruleus parameters studied, while CMS led to a slight reduction in the electrophysiological activity of the locus coeruleus. Furthermore, CMS was associated with an increase in the number of tyrosine hydroxylase-positive cells in the locus coeruleus, although they were smaller in size. Interestingly, these effects of CMS were exacerbated when combined with CCI, even though no changes in the α2-adrenoreceptors or the noradrenaline transporter were observed in any group. Together, these findings suggest that CMS triggers several modifications in locus coeruleus-noradrenergic transmission that are exacerbated by co-morbid chronic pain
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