Diabetes type 2 prevalence is rising among young residents in Malmö, Sweden.

AIM: Type 2 diabetes is becoming more prevalent in many parts of the world. Malmö's population has increased in recent years mainly because of migration from other parts of Sweden and the world in addition to increased birth rates. We aimed to explore diabetes prevalence in Malmö in 2011-2018 as well as the achieved treatment targets for selected diabetes-related outcomes. METHOD: The current study is a part of the Cities Changing Diabetes Malmö project. Prevalence data were retrieved from the region's primary care and hospital diagnosis register, and data on treatment targets were collected from the National Diabetes Register. The inclusion criteria were either being a resident of Malmö or using a primary healthcare centre located in Malmö. RESULTS: The prevalence of type 2 diabetes in 2018 doubled from 2011 in the entire Malmö population. During the same period, the prevalence of type 1 diabetes remained stable at 0.49 %. In 2011, the type 2 diabetes prevalence was 2.46 % (2.76 % for males and 2.28 % for females), and in 2018, it was 4.26 % (4.84 % for males and 3.82 % for females). The increase was 139 % for residents aged 0-29 years, 119.6 % for residents aged 30-39 years, 96.2 % for residents aged 40-49 years, 102 % for residents aged 50-59 years, 98.2 % for residents aged 60-69 years, and 115.5 % for those aged 70-79 years. Finally, the increase was 60.9 % for those aged 80-84 years and 90.7 % for residents 90 years of age and older. The National Diabetes Register reported that during 2019, 58 % of all patients with diabetes using primary care in Malmö reached HbA1c <52 mmol/mol, 20 % had albuminuria, 36 % had retinopathy, and 21 % had not had their feet inspected by a healthcare professional during the last year. The median HbA1c was 52.6 mmol/mol, and 17 % were registered as active smokers. CONCLUSION: Diabetes prevalence in Malmö has increased markedly in recent years, exacerbated by a rise in type 2 diabetes mainly in the younger population. Targets regarding p-glucose lowering treatments were not met by 42 %. One patient out of three had microvascular complications in the eye, one out of five had impaired kidney function, one out of five had not had their feet inspected, and one out of five was an active smoker. Active diabetes treatments need to be improved to reduce the number of younger patients developing microvascular complications. Preventive activities need to target younger populations to counteract even more residents developing type 2 diabetes.

Biocatalysis in the Recycling Landscape for Synthetic Polymers and Plastics towards Circular Textiles.

Although recovery of fibers from used textiles with retained material quality is desired, separation of individual components from polymer blends used in today's complex textile materials is currently not available at viable scale. Biotechnology could provide a solution to this pressing problem by enabling selective depolymerization of recyclable fibers of natural and synthetic origin, to isolate constituents or even recover monomers. We compiled experimental data for biocatalytic polymer degradation with a focus on synthetic polymers with hydrolysable links and calculated conversion rates to explore this path The analysis emphasizes that we urgently need major research efforts: beyond cellulose-based fibers, biotechnological-assisted depolymerization of plastics so far only works for polyethylene terephthalate, with degradation of a few other relevant synthetic polymer chains being reported. In contrast, by analyzing market data and emerging trends for synthetic fibers in the textile industry, in combination with numbers from used garment collection and sorting plants, it was shown that the use of difficult-to-recycle blended materials is rapidly growing. If the lack of recycling technology and production trend for fiber blends remains, a volume of more than 3400 Mt of waste will have been accumulated by 2030. This work highlights the urgent need to transform the textile industry from a biocatalytic perspective.

Release of Side-Chain Fluorinated Polymer-Containing Microplastic Fibers from Functional Textiles During Washing and First Estimates of Perfluoroalkyl Acid Emissions.

The quantity and composition of fibers released from functional textiles during accelerated washing were investigated using the GyroWash method. Two fabrics [polyamide (PA) and polyester/cotton (PES/CO)] were selected and coated with perfluorohexane-based side-chain fluorinated polymers. Fibers released during washing ranged from ∼10 to 500 µ with a similar distribution for the two textile types. The PA-based fabric released considerably more fibers >20 µm in length compared to the PES/CO-based fabric (>1000/GyroWash for PA vs ∼200/GyroWash fibers for PES/CO). After one GyroWash (2-15 domestic washes), fibers that contained approximately 240 and 1300 µg total fluorine per square meter (µg F/m2) were released from the PA and PES/CO fabrics, respectively. Current understanding of the fate of microplastic fibers suggests that a large fraction of these fibers reach the environment either in effluent wastewater or sewage sludge applied to land. In the environment, the fluorinated side chains will be slowly cleaved from the backbone of the side-chain fluorinated polymers coated on the fibers and then transformed into short-chain perfluoroalkyl acids. On the European scale, emissions of up to ∼0.7 t of fluorotelomer alcohol (6:2 FTOH) per year were estimated for outdoor rain jackets treated with fluorotelomer-based side-chain fluorinated polymers.

Pharmacological disruption of the MID1/α4 interaction reduces mutant Huntingtin levels in primary neuronal cultures.

Expression of mutant Huntingtin (HTT) protein is central to the pathophysiology of Huntington's Disease (HD). The E3 ubiquitin ligase MID1 appears to have a key role in facilitating translation of the mutant HTT mRNA suggesting that interference with the function of this complex could be an attractive therapeutic approach. Here we describe a peptide that is able to disrupt the interaction between MID1 and the α4 protein, a regulatory subunit of protein phosphatase 2A (PP2A). By fusing this peptide to a sequence from the HIV-TAT protein we demonstrate that the peptide can disrupt the interaction within cells and show that this results in a decrease in levels of ribosomal S6 phosphorylation and HTT expression in cultures of cerebellar granule neurones derived from HdhQ111/Q7 mice. This data serves to validate this pathway and paves the way for the discovery of small molecule inhibitors of this interaction as potential therapies for HD.

Visual ergonomics and computer work--is it all about computer glasses?

The Swedish Provisions on Work with Display Screen Equipment and the EU Directive on the minimum safety and health requirements for work with display screen equipment cover several important visual ergonomics aspects. But a review of cases and questions to the Swedish Work Environment Authority clearly shows that most attention is given to the demands for eyesight tests and special computer glasses. Other important visual ergonomics factors are at risk of being neglected. Today computers are used everywhere, both at work and at home. Computers can be laptops, PDA's, tablet computers, smart phones, etc. The demands on eyesight tests and computer glasses still apply but the visual demands and the visual ergonomics conditions are quite different compared to the use of a stationary computer. Based on this review, we raise the question if the demand on the employer to provide the employees with computer glasses is outdated.

A multiplexed point-of-care assay for C-reactive protein and N-terminal pro-brain natriuretic peptide.

Several new plasma protein biomarkers have been associated with increased risk of cardiovascular events. It would be of great value if sets of these markers could be measured in a multiplexed format at point-of-care settings. A major challenge is the extremely wide concentration range in which different plasma biomarkers are present. Two promising biomarkers for cardiac risk prediction are C-reactive protein (CRP) and N-terminal pro-brain natriuretic peptide (NTproBNP). The concentrations of these markers can differ by more than six orders of magnitude. Here we present a chip-based multiplexed assay for CRP and NTproBNP. The high-concentration analyte, CRP, is analyzed in a competitive format, whereas the low-concentration analyte, NTproBNP, is analyzed in a sandwich format. This allows concurrent measurement of the two analytes in a single multiplexed assay. The dynamic ranges for the two assays were optimized to match the relevant serum concentration ranges; thus, no dilutions were needed. Both assays exhibit good precision (5-15% in the clinically relevant concentration ranges), and the limit of detection for the NTproBNP assay was 5 ng/L. Patient plasma samples were used for comparison with clinical methods, resulting in coefficients of determination (R(2)) of 0.9762 and 0.9606 for NTproBNP and CRP, respectively.

Silane-dextran chemistry on lateral flow polymer chips for immunoassays.

The prognosis for patients suffering from cardiovascular and many other diseases can be substantially improved if diagnosed at an early stage. High performance diagnostic testing using disposable microfluidic chips can provide a platform for realizing this vision. Amic AB (Uppsala, Sweden) has developed a new microfluidic test chip for sandwich immunoassays fabricated by injection molding of the cycloolefin-copolymer Zeonor. A highly ordered array of micropillars within the fluidic chip distributes the sample solution by capillary action. Since wetting of the pillar array surface is the only driving force for liquid distribution precise control of the surface chemistry is crucial. In this work we demonstrate a novel protocol for surface hydrophilization and antibody immobilization on cycloolefin-copolymer test chips, based on direct silanisation of the thermoplastic substrate. Dextran is subsequently covalently coupled to amino groups, thus providing a coating with a low contact angle suitable for antibody immobilization. The contact angle of dextran coated chips is stable for at least two months, which enables production of large batches that can be stored for extended periods of time. We demonstrate the utility of the presented platform and surface chemistry in a C-reactive protein assay with a detection limit of 2.6 ng ml(-1), a dynamic range of 10(2) and a coefficient of variance of 15%.

Polymer-supported pyridine-bis(oxazoline). Application to ytterbium-catalyzed silylcyanation of benzaldehyde.

[reaction: see text] Terminal acetylenes containing hydroxy and carboxylic acid groups were subjected to Sonogashira coupling with 4-bromo-2,6-bis[(R)-4-phenyloxazolin-2-yl]pyridine and the resulting pybox derivatives were immobilized on Tentagel resins. Ytterbium(III) chloride complexes of the polymeric ligands catalyzed the addition of trimethylsilyl cyanide to benzaldehyde with 80-81% ee. The ligands were reused more than 30 times without any loss in selectivity or activity, and the metal complexes could be recovered and reused at least four times, although with slightly decreasing activity.

Immobilized oxazoline-containing ligands in asymmetric catalysis--a review.

Metal complexes of chiral oxazoline derivatives immobilized on soluble as well as insoluble supports serve as versatile asymmetric catalysts in a variety of applications. In a few cases recovery and reuse of the chiral ligands have been achieved.

Self-assembled and self-sorted array of chemically active beads for analytical and biochemical screening.

A technique for generating a general screening platform consisting of dots of immobilized beads on silicon has been developed via self-sorting and -assembly of different kinds of beads. The dots are defined by a teflon-like film, which due to its hydrophobic characteristics also prevents cross-contamination of liquid from different dots. To enable functionalization of individual dots with different target molecules simultaneously a new way of microcontact printing has been explored where different target solutions are printed in parallel using one stamp. In order to show that this platform can be designed for both biochemical assays and organic chemistry, streptavidin-, amino- and hydroxy-functionalized beads have been self-sorted and -assembled both on separate and common platforms. The self-sorting and -arrangement are based on surface chemistry only, which has not previously been reported. Beads of different sizes and material have successfully been immobilized in line patterns as narrow as 5 mum. Besides silicon, quartz and polyethylene have also been used as substrates.