Analyse van klachten na sterilisatie met Essure® in Nederland : Gezondheidsproblemen na een niet chirurgische sterilisatie-ingreep bij vrouwen

alleen digitaal verschenenHet RIVM heeft klachten geanalyseerd van vrouwen die zijn gesteriliseerd met Essure®. Dit zijn metalen veertjes die via de baarmoeder in beide eileiders worden gebracht waardoor deze na ongeveer 3 maanden dichtgroeien. Het voordeel van deze sterilisatiemethode is, in vergelijking met de traditionele afsluiting van de eileiders, dat er geen chirurgische ingreep voor nodig is. Het aantal gemelde klachten komt van ruim 1,5 procent van de circa 30.000 vrouwen die in Nederland met Essure® zijn behandeld. De meest genoemde klachten zijn pijn en vermoeidheid. Bij de pijnklachten gaat het vooral om de buik, de rug en het hoofd. Daarnaast worden hevige bloedingen tijdens en tussen de menstruatie, stemmingswisselingen, geheugenverlies en concentratieproblemen gemeld. Het werkelijke aantal vrouwen met klachten is onbekend. Veel vrouwen geven aan dat deze klachten hun dagelijks leven negatief beïnvloeden. Ze voelen de veertjes zitten of ervaren beperkingen bij het bewegen. Verder kunnen ze de dagelijkse taken en de zorg voor kinderen vaak minder goed uitvoeren. Er zijn ook vrouwen die aangeven dat hun relatie lijdt onder de ontstane problemen. Bij 16 procent van de vrouwen die klachten gemeld hebben, is Essure® verwijderd naar aanleiding van de klachten. 38 procent van de vrouwen in dit onderzoek heeft een afspraak gemaakt om dat te laten doen. De klachten zijn gemeld nadat hieraan via diverse kanalen aandacht is besteed. De Nederlandse Vereniging voor Obstetrie en Gynaecologie (NVOG) heeft de resultaten van de analyse medisch geduid. Sommige klachten zijn mogelijk toe te wijzen aan de plaatsing van Essure®, zoals bepaalde pijnklachten. Bij andere klachten is het moeilijker om een direct verband te leggen omdat er ook andere zaken van invloed kunnen zijn, zoals stoppen met de pil waardoor menstruatieklachten kunnen verergeren. Daarnaast komen verschillende klachten, bijvoorbeeld gewichtsschommelingen en urinewegproblemen, ook met enige regelmaat voor bij vrouwen die geen Essure® hebben. De gemelde klachten komen van vrouwen die tussen 2001 en 2016 het implantaat hebben gekregen. Hun gemiddelde leeftijd was 37 jaar op het moment van de sterilisatie.The RIVM has analyzed the complaints reported by women sterilized using Essure®. Essure® is a sterilization method where two metal coils are placed into both fallopian tubes through the cervix and uterus, provoking those to become blocked after approximately 3 months. In comparison with the traditional sterilization methods, the advantage of the Essure® method is that no surgical procedure is required. The complaints that were received came from more than1,5 percent of the 30.000 women who are estimated to have been sterilized using Essure® in the Netherlands. Probably not all women with health problems have submitted a complaint; therefore, the actual number of women with health problems is unknown. The most frequently mentioned health problems are pain and tiredness. The pain is reported to be located mainly in the abdomen, back, and head. In addition, heavy bleeding during and between menstruations, mood swings, memory loss and concentration problems are also reported frequently. Many women indicated that these health problems negatively affect their daily life. They feel the coils in their body and often experience limitations when moving. They are often less able to adequately perform their daily tasks and take care of their children.There are also women that indicated that their relationship was negatively affected by the health problems. In 16 percent of the women in this study, Essure® has been removed because of the health problems and 38 percent of the women have made an appointment to have Essure® removed. The complaints were submitted, among other reasons, because the media attention on problems experienced by women following sterilization using Essure®. The Dutch Society of Obstetrics and Gyneacology (NVOG) contributed to the interpretation of the results from this study. Some health problems can be directly related to Essure®, for instance some kinds of pain. For other health problems it is more difficult to establish a direct link, because other factors may influence the health problems as well. For instance, heavier menstruation may also be explained by the fact that women stopped taking oral contraceptives following sterilization using Essure®.Furthermore, there are other health problems such as weight changes and urinary tract problems that are also regularly experienced by women not sterilized with Essure®. Women that submitted a complaint were sterilized using Essure between 2001 and 2016. Their mean age at implantation was 37 years.Dutch Health Care Inspectorat

Time-calibrated molecular phylogeny of pteropods

© 2017 Burridge et al. This is an open access article distributed under the terms of the [4.0] Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. The attached file is the published version of the article

The origin and diversification of pteropods precede past perturbations in the Earth’s carbon cycle

Open AccessPteropods are a group of planktonic gastropods that are widely regarded as biological indicators for assessing the impacts of ocean acidification. Their aragonitic shells are highly sensitive to acute changes in ocean chemistry. However, to gain insight into their potential to adapt to current climate change, we need to accurately reconstruct their evolutionary history and assess their responses to past changes in the Earth’s carbon cycle. Here, we resolve the phylogeny and timing of pteropod evolution with a phylogenomic dataset (2,654 genes) incorporating new data for 21 pteropod species and revised fossil evidence. In agreement with traditional taxonomy, we recovered molecular support for a division between “sea butterflies” (Thecosomata; mucus-web feeders) and “sea angels” (Gymnosomata; active predators). Molecular dating demonstrated that these two lineages diverged in the early Cretaceous, and that all main pteropod clades, including shelled, partially-shelled, and unshelled groups, diverged in the mid- to late Cretaceous. Hence, these clades originated prior to and subsequently survived major global change events, including the Paleocene–Eocene Thermal Maximum (PETM), the closest analog to modern-day ocean acidification and warming. Our findings indicate that planktonic aragonitic calcifiers have shown resilience to perturbations in the Earth’s carbon cycle over evolutionary timescales.Copyright © 2020 the Author(s). Published by PNAS. This open access article is distributed under Creative Commons Attribution License 4.0 (CC BY)

Fecal microbiota and bile acid interactions with systemic and adipose tissue metabolism in diet-induced weight loss of obese postmenopausal women

Microbiota and bile acids in the gastrointestinal tract profoundly alter systemic metabolic processes. In obese subjects, gradual weight loss ameliorates adipose tissue inflammation and related systemic changes. We assessed how rapid weight loss due to a very low calorie diet (VLCD) affects the fecal microbiome and fecal bile acid composition, and their interactions with the plasma metabolome and subcutaneous adipose tissue inflammation in obesity. We performed a prospective cohort study of VLCD-induced weight loss of 10% in ten grades 2-3 obese postmenopausal women in a metabolic unit. Baseline and post weight loss evaluation included fasting plasma analyzed by mass spectrometry, adipose tissue transcription by RNA sequencing, stool 16S rRNA sequencing for fecal microbiota, fecal bile acids by mass spectrometry, and urinary metabolic phenotyping by H-NMR spectroscopy. Outcome measures included mixed model correlations between changes in fecal microbiota and bile acid composition with changes in plasma metabolite and adipose tissue gene expression pathways. Alterations in the urinary metabolic phenotype following VLCD-induced weight loss were consistent with starvation ketosis, protein sparing, and disruptions to the functional status of the gut microbiota. We show that the core microbiome was preserved during VLCD-induced weight loss, but with changes in several groups of bacterial taxa with functional implications. UniFrac analysis showed overall parallel shifts in community structure, corresponding to reduced abundance of the genus Roseburia and increased Christensenellaceae;g__ (unknown genus). Imputed microbial functions showed changes in fat and carbohydrate metabolism. A significant fall in fecal total bile acid concentration and reduced deconjugation and 7-α-dihydroxylation were accompanied by significant changes in several bacterial taxa. Individual bile acids in feces correlated with amino acid, purine, and lipid metabolic pathways in plasma. Furthermore, several fecal bile acids and bacterial species correlated with altered gene expression pathways in adipose tissue. VLCD dietary intervention in obese women changed the composition of several fecal microbial populations while preserving the core fecal microbiome. Changes in individual microbial taxa and their functions correlated with variations in the plasma metabolome, fecal bile acid composition, and adipose tissue transcriptome

Plasticity of the Muscle Stem Cell Microenvironment

Satellite cells (SCs) are adult muscle stem cells capable of repairing damaged and creating new muscle tissue throughout life. Their functionality is tightly controlled by a microenvironment composed of a wide variety of factors, such as numerous secreted molecules and different cell types, including blood vessels, oxygen, hormones, motor neurons, immune cells, cytokines, fibroblasts, growth factors, myofibers, myofiber metabolism, the extracellular matrix and tissue stiffness. This complex niche controls SC biology-quiescence, activation, proliferation, differentiation or renewal and return to quiescence. In this review, we attempt to give a brief overview of the most important players in the niche and their mutual interaction with SCs. We address the importance of the niche to SC behavior under physiological and pathological conditions, and finally survey the significance of an artificial niche both for basic and translational research purposes

Study of hadronic event-shape variables in multijet final states in pp collisions at √s=7 TeV

Peer reviewe

The genome of the seagrass Zostera marina reveals angiosperm adaptation to the sea

Seagrasses colonized the sea(1) on at least three independent occasions to form the basis of one of the most productive and widespread coastal ecosystems on the planet(2). Here we report the genome of Zostera marina (L.), the first, to our knowledge, marine angiosperm to be fully sequenced. This reveals unique insights into the genomic losses and gains involved in achieving the structural and physiological adaptations required for its marine lifestyle, arguably the most severe habitat shift ever accomplished by flowering plants. Key angiosperm innovations that were lost include the entire repertoire of stomatal genes(3), genes involved in the synthesis of terpenoids and ethylene signalling, and genes for ultraviolet protection and phytochromes for far-red sensing. Seagrasses have also regained functions enabling them to adjust to full salinity. Their cell walls contain all of the polysaccharides typical of land plants, but also contain polyanionic, low-methylated pectins and sulfated galactans, a feature shared with the cell walls of all macroalgae(4) and that is important for ion homoeostasis, nutrient uptake and O-2/CO2 exchange through leaf epidermal cells. The Z. marina genome resource will markedly advance a wide range of functional ecological studies from adaptation of marine ecosystems under climate warming(5,6), to unravelling the mechanisms of osmoregulation under high salinities that may further inform our understanding of the evolution of salt tolerance in crop plants(7)

Constraints on parton distribution functions and extraction of the strong coupling constant from the inclusive jet cross section in pp collisions at √s=7 TeV

Peer reviewe

Search for new phenomena in final states with an energetic jet and large missing transverse momentum in pp collisions at root s = 8 TeV with the ATLAS detector (vol 75, 299, 2015)

Results of a search for new phenomena in final states with an energetic jet and large missing transverse momentum are reported. The search uses 20.3 fb−1 of √s=8 TeV data collected in 2012 with the ATLAS detector at the LHC. Events are required to have at least one jet with pT>120 GeV and no leptons. Nine signal regions are considered with increasing missing transverse momentum requirements between EmissT>150 GeV and EmissT>700 GeV. Good agreement is observed between the number of events in data and Standard Model expectations. The results are translated into exclusion limits on models with either large extra spatial dimensions, pair production of weakly interacting dark matter candidates, or production of very light gravitinos in a gauge-mediated supersymmetric model. In addition, limits on the production of an invisibly decaying Higgs-like boson leading to similar topologies in the final state are presented