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Amyloid-PET and 18F-FDG-PET in the diagnostic investigation of Alzheimer's disease and other dementias

Various biomarkers are available to support the diagnosis of neurodegenerative diseases in clinical and research settings. Among the molecular imaging biomarkers, amyloid-PET, which assesses brain amyloid deposition, and 18F-fluorodeoxyglucose (18F-FDG) PET, which assesses glucose metabolism, provide valuable and complementary information. However, uncertainty remains regarding the optimal timepoi

Regulatory changes in pterin and carotenoid genes underlie balanced color polymorphisms in the wall lizard

Reptiles use pterin and carotenoid pigments to produce yellow, orange, and red colors. These conspicuous colors serve a diversity of signaling functions, but their molecular basis remains unresolved. Here, we show that the genomes of sympatric color morphs of the European common wall lizard (Podarcis muralis), which differ in orange and yellow pigmentation and in their ecology and behavior, are vi

Reproductive Factors, Sex Hormone Levels, and Differentiated Thyroid Cancer Risk : A Mendelian Randomization Study

Background: Differentiated thyroid carcinoma (DTC) is occurring three times more frequently in females than in males. However, the underlying biological mechanisms driving this discrepancy remain poorly understood. To investigate the causal role of sex hormones and reproductive factors in the risk of DTC, we implemented a two-sample Mendelian randomization (MR) analysis. Methods: We utilized genom

Copy number signatures in cervical samples enable early detection of high-grade serous ovarian carcinoma

BackgroundThe lack of effective screening methods for the detection of ovarian cancer leads to late diagnosis and poor outcomes. High-grade serous ovarian carcinoma (HGSC) is strongly dominated by copy number alterations (CNAs), resulting from underlying mutational processes. Several studies have reported the detection of ovarian carcinoma-derived somatic mutations in cervical samples, uterine lav

Capacity for the management of kidney failure in the International Society of Nephrology Western Europe region : report from the 2023 ISN Global Kidney Health Atlas (ISN-GKHA)

Western Europe boasts advanced health care systems, robust kidney care guidelines, and a well-established health care workforce. Despite this, significant disparities in kidney replacement therapy incidence, prevalence, and transplant access exist. This paper presents the third International Society of Nephrology Global Kidney Health Atlas's findings on kidney care availability, accessibility, aff

Nuclear level density and γ -ray strength function of Ni 67 and the impact on the i process

Proton-γ coincidences from (d,p) reactions between a Ni66 beam and a deuterated polyethylene target have been analyzed with the inverse-Oslo method to find the nuclear level density (NLD) and γ-ray strength function (γSF) of Ni67. The Ni66(n,γ) capture cross section has been calculated using the Hauser-Feshbach model in TALYS using the measured NLD and γSF as constraints. The results confirm that

Changes in the epidemiology of kidney replacement therapy across Europe in 2020 - The first year of the COVID-19 pandemic : An ERA Registry study

Background: In 2020, the coronavirus disease 2019 (COVID-19) pandemic caused disruptions in kidney replacement therapy (KRT) services worldwide. The aim of this study was to assess the effect of the COVID-19 pandemic in 2020 on the incidence of KRT, kidney transplantation activity, mortality and prevalence of KRT across Europe. Methods: Patients receiving KRT were included from 17 countries provid

A burden of rare copy number variants in obsessive-compulsive disorder

Current genetic research on obsessive-compulsive disorder (OCD) supports contributions to risk specifically from common single nucleotide variants (SNVs), along with rare coding SNVs and small insertion-deletions (indels). The contribution to OCD risk from rare copy number variants (CNVs), however, has not been formally assessed at a similar scale. Here we describe an analysis of rare CNVs called

Diffusion MRI acquisition for tractography : Beyond the in vivo adult human brain

This is the third of three chapters on diffusion MRI acquisition for tractography. Tractography is performed extensively in the in vivo adult brain, and sequences used for the in vivo adult brain have been covered in detail in Chapter 7. However, tractography is also performed in ex vivo human brain, in both the in vivo and ex vivo animal brain of various nonhuman species, in the human brain durin

Intraoperative ventilation settings and their associations with postoperative pulmonary complications in obese patients

BACKGROUND: There is limited information concerning the current practice of intraoperative mechanical ventilation in obese patients, and the optimal ventilator settings for these patients are debated. We investigated intraoperative ventilation parameters and their associations with the development of postoperative pulmonary complications (PPCs) in obese patients.METHODS: We performed a secondary a

Association between shoulder joint radiation dose and arm morbidity in the randomized breast cancer trial SENOMAC

Background: Postoperative lymph node irradiation can affect shoulder morbidity in breast cancer patients, yet widely accepted dose-volume constraints for the shoulder joint are lacking. The SENOMAC trial randomized patients with breast cancer and 1–2 sentinel lymph node (SLN) macrometastases to axillary lymph node dissection (ALND) or SLN biopsy only. We aimed to analyze the association between th

Mapping exercise and status update of eight established registries within the TREatment of ATopic eczema Registry Taskforce

Background: The TREatment of ATopic eczema (TREAT) Registry Taskforce is a collaborative international network of registries collecting data of atopic eczema (AE) patients receiving systemic and phototherapy with the common goal to provide long-term real-world data on the effectiveness, safety and cost-effectiveness of therapies. A core dataset, consisting of domains and domain items with correspo

Tau and neurofilament light-chain as fluid biomarkers in spinocerebellar ataxia type 3

BACKGROUND AND PURPOSE: Clinical trials in spinocerebellar ataxia type 3 (SCA3) will require biomarkers for use as outcome measures.METHODS: To evaluate total tau (t-tau), glial fibrillary acidic protein (GFAP), ubiquitin carboxy-terminal hydrolase L1 (UCHL1) and neurofilament light-chain (NfL) as fluid biomarkers in SCA3, ATXN3 mutation carriers (n = 143) and controls (n = 172) were clinically as

Human branching cholangiocyte organoids recapitulate functional bile duct formation

Human cholangiocyte organoids show great promise for regenerative therapies and in vitro modeling of bile duct development and diseases. However, the cystic organoids lack the branching morphology of intrahepatic bile ducts (IHBDs). Here, we report establishing human branching cholangiocyte organoid (BRCO) cultures. BRCOs self-organize into complex tubular structures resembling the IHBD architectu

The role of wingbeat frequency and amplitude in flight power

Body-mounted accelerometers provide a new prospect for estimating power use in flying birds, as the signal varies with the two major kinematic determinants of aerodynamic power: wingbeat frequency and amplitude. Yet wingbeat frequency is sometimes used as a proxy for power output in isolation. There is, therefore, a need to understand which kinematic parameter birds vary and whether this is predic

Data-driven modelling of hydraulic-head time series : results and lessons learned from the 2022 Groundwater Time Series Modelling Challenge

This paper presents the results of the 2022 Groundwater Time Series Modelling Challenge, where 15 teams from different institutes applied various data-driven models to simulate hydraulic-head time series at four monitoring wells. Three of the wells were located in Europe and one was located in the USA in different hydrogeological settings in temperate, continental, or subarctic climates. Participa

Pollination deficits and their relation with insect pollinator visitation are cultivar-dependent in an entomophilous crop

Insects contribute considerably to global crop pollination, with pollination deficits being documented for multiple entomophilous or pollinator-dependent crops. Different cultivars of crops are being cultivated within and across production regions, so it is essential to understand the cultivar variability of pollination deficits. Here, we used a dataset from 286 sites from multiple production regi

High-spin rotational structures in Kr-76

High-spin states in Kr-76(36)40 have been populated in the Ca-40(Ca-40,4p)Kr-76 fusion-evaporation reaction at abeam energy of 165 MeV and studied using the Gammasphere and Microball multidetector arrays. The ground-state band and two signature-split negative parity bands of Kr-76 have been extended to similar to 30 (h) over bar. Lifetime measurements. using the Doppler-shift attenuation method sh

Hindered E4 decay of the 12(+) yrast trap in Fe-52

The gamma decay of the 12(+) yrast trap in Fe-52 has been measured for the first time. The two E4 gamma-branches to the 8(+) states are hindered with respect to other B(E4) reduced transition probabilities measured in the f(7/2) shell. The interpretation of the data is given in the full pf shell model framework, comparing the results obtained with different residual interactions. It is shown that