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Experimentally determined temperature thresholds for Arctic plankton community metabolism
Climate warming is especially severe in the Arctic, where the average temperature is increasing 0.4 degrees C per decade, two to three times higher than the global average rate. Furthermore, the Arctic has lost more than half of its summer ice extent since 1980 and predictions suggest that the Arctic will be ice free in the summer as early as 2050, which could increase the rate of warming. Predict
Risks of papillary and follicular thyroid cancer among immigrants to Sweden
Previous studies have indicated that ionizing radiation, particularly during childhood, is the main established risk factor for thyroid cancer. History of benign nodules/adenoma, goiter, iodine deficiency or high-iodine intake might be other associated factors. We wanted to define the histology-specific thyroid cancer risk in the first-generation immigrants to Sweden. We used the 2010 update of th
Obesity and asthma: current knowledge and future needs
Purpose of review Obesity has significant impact on asthma incidence and manifestations. The purpose of the review is to discuss recent observations regarding the association between obesity and asthma focusing on underlying mechanisms, clinical presentation, response to therapy and effect of weight reduction. Recent findings Clinical and epidemiological studies indicate that obese patients with a
A fast semi-quantitative LC-MS method for measurement of intact apolipoprotein A-I reveals novel proteoforms in serum.
Surrogate markers for reverse cholesterol transport (RCT) efficiency such as HDL cholesterol and immune methods for apolipoprotein A-I (ApoA-I) may not fully reflect the actual efficiency of the RCT pathway. Several genetic variants and different posttranslational proteoforms of ApoA-I may unevenly affect the functionality of the HDL particle to efflux cholesterol. A method employing top-down immu
The ageing patient with haemophilia
Older patients with haemophilia (PWH) face many challenges related not only to haemophilia but also to general comorbidities associated with ageing. This article discusses the clinical experience published about the high prevalence of diseases in older PWH. These conditions are managed in the general population by healthcare workers with little training in haemophilia. Haemophilic arthropathy is c
The RNA dreamtime: modern cells feature proteins that might have supported a prebiotic polypeptide world but nothing indicates that RNA world ever was.
Modern cells present no signs of a putative prebiotic RNA world. However, RNA coding is not a sine qua non for the accumulation of catalytic polypeptides. Thus, cellular proteins spontaneously fold into active structures that are resistant to proteolysis. The law of mass action suggests that binding domains are stabilized by specific interactions with their substrates. Random polypeptide synthesis
Botswana: A development-oriented gate-keeping state
Due to a combination of exceptional economic growth and social development, Botswana has been hailed as an African developmental state. This article rejects the developmental state theory and instead attempts to build an alternative theoretical model. It argues that from the 1930s until the present, Botswana has experienced a state structure characterized by natural resource dependency, lack of ec
The visual ecology of a deep-sea fish, the escolar Lepidocybium flavobrunneum (Smith, 1843).
Escolar (Lepidocybium flavobrunneum, family Gempylidae) are large and darkly coloured deep-sea predatory fish found in the cold depths (more than 200 m) during the day and in warm surface waters at night. They have large eyes and an overall low density of retinal ganglion cells that endow them with a very high optical sensitivity. Escolar have banked retinae comprising six to eight layers of rods
Untangling the relationships among growth, profitability and survival in new firms
The performance of new firms is important for economic development but research has produced limited knowledge about the key relationships among growth, profitability, and survival for new firms. Based on evolutionary theory, we develop a model about how new firms resolve uncertainty about their ability to prosper in a market by monitoring changes in profitability. Our model predicts selection pre
A large multi-centre European study validates high-sensitivity C-reactive protein (hsCRP) as a clinical biomarker for the diagnosis of diabetes subtypes
An accurate molecular diagnosis of diabetes subtype confers clinical benefits; however, many individuals with monogenic diabetes remain undiagnosed. Biomarkers could help to prioritise patients for genetic investigation. We recently demonstrated that high-sensitivity C-reactive protein (hsCRP) levels are lower in UK patients with hepatocyte nuclear factor 1 alpha (HNF1A)-MODY than in other diabete
The linkages between photosynthesis, productivity, growth and biomass in lowland Amazonian forests
Understanding the relationship between photosynthesis, net primary productivity and growth in forest ecosystems is key to understanding how these ecosystems will respond to global anthropogenic change, yet the linkages among these components are rarely explored in detail. We provide the first comprehensive description of the productivity, respiration and carbon allocation of contrasting lowland Am
GPR40 protein levels are crucial to the regulation of stimulated hormone secretion in pancreatic islets. Lessons from spontaneous obesity-prone and non-obese type 2 diabetes in rats.
The role of islet GPR40 protein in the pathogenesis of diabetes is unclear. We explored the influence of GPR40 protein levels on hormone secretion in islets from two rat models of spontaneous type 2 diabetes displaying either hyperlipidaemia or hyperglycaemia. GPR40 expression was analysed by confocal microscopy, Western blot and qPCR in islets from preobese Zucker (fa/fa) rats, diabetic Goto-Kaki
TCF7L2-conferred apoptosis in pancreatic beta cells involves the p53 pathway
A 3-year follow-up after anterior colporrhaphy compared with collagen-coated transvaginal mesh for anterior vaginal wall prolapse: a randomised controlled trial.
To compare the 1-year (previously published) and 3-year objective and subjective cure rates, and complications, related to the use of a collagen-coated transvaginal mesh for anterior vaginal wall prolapse against a conventional anterior repair.
Fetal safety of erythromycin. An update of Swedish data.
In previous studies from the Swedish Medical Birth Register, a possible association between erythromycin therapy and an increased risk for cardiovascular defects was found. Other studies using different methodology have not verified this observation. The finding resulted in a warning for the use of erythromycin in early pregnancy, followed by a marked decline in such use. The present study was con
CHCHD2 and Parkinson's disease
Residual organic matter and microbial respiration in bottom ash: Effects on metal leaching and eco-toxicity.
A common assumption regarding the residual organic matter, in bottom ash, is that it does not represent a significant pool of organic carbon and, beyond metal-ion complexation process, it is of little consequence to evolution of ash/leachate chemistry. This article evaluates the effect of residual organic matter and associated microbial respiratory processes on leaching of toxic metals (i.e. arsen
Complete minimal submanifolds of compact Lie groups
We give a new method for manifacturing complete minimal submanifolds of compact Lie groups and their homogeneous quotient spaces. For this we make use of harmonic morphisms and basic representation theory of Lie groups. We then employ our method to construct many examples of compact minimal submanifolds of the special unitary groups.
Stem cell-based therapy for malignant glioma.
Stem cells have been extensively investigated as tumour-tropic vectors for gene delivery to solid tumours. In this review, we discuss the potential for using stem cells as cellular vector systems in gene therapy for malignant gliomas, with a focus on neural stem cells, and multipotent mesenchymal stromal cells. Tumour cell-derived substances and factors associated with tumour-induced inflammation