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Nonlinear compartmental model of F-18-choline

Introduction: This work develops a compartmental model of F-18-choline in order to evaluate its biokinetics and so to describe the temporal variation of the radiopharmaceuticals' uptake in and clearance from organs and tissues. Methods: Ten patients were considered in this study. A commercially available tool for compartmental analysis (SAAM II) was used to model the values of activity concentrati

Relocating the owl of wisdom : Encyclopaedias in a life-historical perspective

Artikeln undersöker människors förhållningssätt till uppslagsverk och encyklopedier i ett livshistoriskt perspektiv under en period när encyklopedier har genomgått dramatiska förändringar. En frågelista som skickats till fasta så kallade meddelare knutna till Folklivsarkivet i Lund har använts som metod. Svaren har analyserats med hjälp av posthumanistisk teori. Analysen visar de sätt som tryckta Encyclopaedias are artefacts that both define and are defined by the culture in which they are produced and used. Encyclopaedias mirror the time of their creation, at the same time as understanding and use of encyclopaedias is tied to both time and space. From the 19th century until the present day encyclopaedias have changed from exclusive and costly Collections of books kept mainly in libraries

Biochemical characterisation and novel classification of monofunctional S-adenosylmethionine decarboxylase of Plasmodium falciparum

Plasmodium falciparum like other organisms is dependent on polyamines for proliferation. Polyamine biosynthesis in these parasites is regulated by a unique bifunctional S-adenosylmethionine decarboxylase/ornithine decarboxylase (PfAdoMetDC/ODC). Only limited biochemical and structural information is available on the bifunctional enzyme due to the low levels and impurity of an instable recombinantl

Cancer risk in patients with type 2 diabetes mellitus and their relatives.

Epidemiological studies indicate that risks of certain cancers are increased in individuals hospitalized for type 2 diabetes mellitus (T2DM), which may not be representative of the entire population of T2DM patients as most of them are treated in primary health cares. To examine the subsequent cancer risk in individuals with T2DM from hospitals and primary health cares, and in their siblings and s

A Central Role for GRB10 in Regulation of Islet Function in Man.

Variants in the growth factor receptor-bound protein 10 (GRB10) gene were in a GWAS meta-analysis associated with reduced glucose-stimulated insulin secretion and increased risk of type 2 diabetes (T2D) if inherited from the father, but inexplicably reduced fasting glucose when inherited from the mother. GRB10 is a negative regulator of insulin signaling and imprinted in a parent-of-origin fashion

Lentiviral vector-mediated down-regulation of IL-17A receptor in hepatic stellate cells results in decreased secretion of IL-6

AIM: To investigate the mechanism of interleukin (IL)-6 secretion through blocking the IL-17A/IL-17A receptor (IL-17RA) signaling pathway with a short hairpin RNA (shRNA) in hepatic stellate cells (HSCs) in vitro. METHODS: HSCs were derived from the livers of adult male Sprague-Dawley rats. IL-6 expression was evaluated using real-time quantitative polymerase chain reaction and enzyme linked immun

Short-range structure of proton-conducting BaM0.10Zr0.90O2.95 (M = Y, In, Sc and Ga) investigated with vibrational spectroscopy

The short-range structures of hydrated and dry samples of the proton-conducting, cubic-structured, acceptor-doped perovskites BaM0.10Zr0.90O2.95 (M=Y, In, Sc and Ga), and, for comparison, BaZrO3, have been investigated using infrared and Raman spectroscopy. The results show that the acceptor-doping leads to local structural distortions of the average cubic structure, most likely related to tilts o

U-Pb baddeleyite ages, distribution and geochemistry of 925 Ma mafic dykes and 900 Ma sills in the North China craton: Evidence for a Neoproterozoic mantle plume

Numerous Neoproterozoic mafic dykes, referred to as the Dashigou swarm, are identified in the central and southeastern parts of the North China craton (NCC). They are 305-010 degrees trending dykes, with widths of similar to 10-100 m and exposed lengths of several to >10 km. Precise U-Pb isotope dilution thermal ionization mass spectrometry (ID-TIMS) measurements on baddeleyite grains separated fr

Acupuncture in practice: investigating acupuncturists' approach to treating infantile colic.

Infantile colic is common, but no safe and effective conventional treatment exists. The use of acupuncture has increased despite weak evidence. This practitioner survey explores and discusses how infantile colic is regarded and treated in Traditional Chinese Medicine (TCM). The study is based on personal communication with 24 acupuncturists from nine countries. These acupuncturists specialize in p

NFAT regulates neutrophil recruitment, systemic inflammation and T-cell dysfunction in abdominal sepsis.

The signaling mechanisms regulating neutrophil recruitment, systemic inflammation and T-cell dysfunction in polymicrobial sepsis are not clear. This study explored the potential involvement of the calcium/calcineurin-dependent transcription factor, nuclear factor of activated T-cells (NFAT) in abdominal sepsis. Cecal ligation and puncture (CLP) triggered NFAT-dependent transcriptional activity in

Co-localization of insect olfactory sensory cells improves the discrimination of closely separated odour sources

1. The sense of smell is crucial for fitness of most animals, enabling them to find mates, food and egg laying sites and to stay away from danger. Hence, odour molecules are detected by sensitive and specific olfactory sensory neurons (OSNs). In insects, the OSNs are stereotypically grouped into olfactory sensilla located mainly on the antennae. The functional significance of this co-localization

Cross-cultural validation of a simple self-report instrument of physical activity in immigrants from the Middle East and native Swedes.

To investigate cross-cultural validity of a simple self-report instrument of physical activity intended to be used in Swedish health care. Methods: A validation study performed in 599 Iraqis (58% men) and 553 Swedes (53% men) aged 30-75 years living in the city of Malmö, Sweden. The self-report instrument by the Swedish National Board of Health and Welfare was compared to corresponding measures as

Characterization of germline mutations of MLH1 and MSH2 in unrelated south American suspected Lynch syndrome individuals

Lynch syndrome (LS) is an autosomal dominant syndrome that predisposes individuals to development of cancers early in life. These cancers are mainly the following: colorectal, endometrial, ovarian, small intestine, stomach and urinary tract cancers. LS is caused by germline mutations in DNA mismatch repair genes (MMR), mostly MLH1 and MSH2, which are responsible for more than 85% of known germline

Oral direct thrombin inhibitor AZD0837 for the prevention of stroke and systemic embolism in patients with non-valvular atrial fibrillation: A Phase II study of AZD0837 in patients who are appropriate for but unable or unwilling to take vitamin K antagonist therapy

Background: Some patients with atrial fibrillation (AF) cannot be treated with vitamin K antagonists (VKAs) and will therefore not receive effective thromboprophylaxis. The primary objective of the present Phase II trial (NCT00623779) was to assess the feasibility of conducting a study with a novel oral anticoagulant, the direct thrombin inhibitor AZD0837, in patients with AF unable or unwilling t

Correlations of CSF tau and amyloid levels with Alzheimer pathology in neuropathologically verified dementia with Lewy bodies.

OBJECTIVE: The presence of concomitant Alzheimer pathology has been linked to earlier death in cases with dementia with Lewy bodies (DLB). Recently, elevated cerebrospinal fluid (CSF) tau protein levels have been reported to be associated with shorter survival in clinically diagnosed DLB. Correlations between CSF biomarkers and neuropathological findings in DLB are missing. The aim of this study