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The middle Cambrian cosmopolitan key species Lejopyge laevigata and its biozone: new data from Sweden

The middle Cambrian Lejopyge laevigata Zone is poorly exposed in Scandinavia. Both this zone, however, and the succeeding Agnostus pisiformis Zone are well exposed at a classic locality at Gudhem, Vastergotland, south-central Sweden. The sequences consist of finely laminated alum shale with scattered stinkstone (orsten) lenses. Three measured and sampled sections yielded a diverse fossil fauna, do

Holocene changes in atmospheric circulation recorded in the oxygen-isotope stratigraphy of lacustrine carbonates from northern Sweden

The oxygen-isotope composition of local precipitation (delta(18)O(P)) is reconstructed from carbonate lake-sediment components in a sediment core covering the last 10000 calendar years from Lake Tibetanus, a small, hydrologically open, groundwater-fed take in the Abisko area, northern Sweden. Comparison of the delta(18)O(P) history with a pollen-based palaeotemperature record from the same core cl

Changes in calcium metabolic indices during long-term treatment of patients with essential hypertension

1. Disturbances of calcium metabolism, mimicking mild, compensated secondary hyperparathyroidism, accompany essential hypertension, but it is not known whether these alterations are primary or only secondary to the elevated blood pressure. 2. Indices of systemic calcium metabolism were followed prospectively during 6 months' treatment with either propranolol, bendroflumethiazide or verapamil in 35

Seroprevalence of Helicobacter pylori in primary Sjogren's syndrome

OBJECTIVE: To study the seroprevalence of Helicobacter pylori (H. pylori) infection in patients with primary Sjogren's syndrome (SS), fulfilling the 1993 European classification criteria compared with three different control groups. METHODS: Serological tests investigating the presence of antibodies against H. pylori were performed by Enzyme Immuno Assay (EIA) and confirmed by immunoblot (IB). The

OPTICAL DATING OF A LATE QUATERNARY SEDIMENT SEQUENCE FROM SOKLI, NORTHERN FINLAND

Interstadial and non-glacial stadial sediments collected in boreholes from Sokli in northeastern Finland have been dated by optically stimulated luminescence on quartz and feldspar grains. The quartz OSL ages follow stratigraphic order, with one exception, and support the litho-and bio-stratigraphical correlation with the NW European mainland climate-stratigraphy and the marine oxygen-isotope stag

Traditional risk-factor profile fails to explain striking geographical differences in IHD mortality among middle-aged men. The project "myocardial infarction in mid-Sweden"

An east-west gradient in cardiovascular mortality has been reported from the region of mid-Sweden. Postal questionnaire studies found that the risk factor distributions among middle-aged men were similar in areas with striking differences in cardiovascular mortality. In this study, 120 randomly selected 50-year-old men in two high mortality communities in the west and 120 men from two low mortalit

Mutations in the HERG K+-Ion channel: A novel link between long QT syndrome and sudden infant death syndrome

In a 7-week-old infant who experienced sudden infant death syndrome (SIDS), a novel missense mutation was identified in KCNH2, causing a lysine-to-glutamic acid amino acid substitution at position 101 (K101E). KCNH2 codes for the HERG ion channel and mutations in the gene are associated with congenital long-QT syndrome (LQTS), and in the family of this case of SIDS, the mutation was associated wit

The Microfinance Collateralized Debt Obligation: A Modern Robin Hood?

The aim of this paper is to highlight a potentially very fruitful link between micro-entrepreneurs and international capital markets. It discusses the role structured finance and credit derivatives could play in extending finance to micro-entrepreneurs on a much larger scale than today's mainly non-commercial microfinance industry. The mechanisms of so-called collateralized debt obligations (CDOs)

Chromosomal organization of amplified chromosome 12 sequences in mesenchymal tumors detected by fluorescence in situ hybridization

The chromosomal organization of amplified chromosome 12 sequences was studied with fluorescence in situ hybridization in six mesenchymal tumors: two osteosarcomas, one lipoma, two liposarcomas, and one fibrosarcoma. All except the fibrosarcoma contained ring and/or giant marker chromosomes. Amplification of chromosome 12 sequences, demonstrated with whole-chromosome paint in all cases, was confine

Relaxant effects of propofol on human omental arteries and veins

We have investigated the relaxant effects of propofol on smooth muscle tension in human omental arteries and veins to determine if endothelium-related mechanisms are involved. Isolated vessel segments were precontracted with endothelin-1 and propofol was added cumulatively (10(-7)-10(-4) mol litre-1). In both artery and vein segments, propofol induced relaxation, which was not dependent on an inta

Inverse association between plasma homocysteine, sulphonylurea exposure and physical activity: a community-based sample of type 2 diabetes patients in the Skaraborg hypertension and diabetes project

Aim: This study aimed to investigate levels of Homocysteine (tHcy) and folate in a population-based sample of patients with type 2 diabetes. In particular, the study explored modifiable determinants such as treatment for diabetes, life style, glucose control and kidney function. Patients and methods: In a community-based surveillance of patients with type 2 diabetes, 196 men and 191 women were con

Phosphorus fractions in grassland soils

The partitioning of P among major chemical forms was studied in 110 non-fertilized, semi-natural grassland soils of southeastern Sweden, comprising a wide range of soil acidity and other chemical properties. The P fractions bound to Ca and Fe were closely related to soil acidity, expressed as pH-KCl, especially when calculated as % of the total pool of mineral P. The relationship was inversely lin

Enrichment of membrane proteins by partitioning in detergent/polymer aqueous two-phase systems.

Methods that combine efficient solubilization with enrichment of proteins and intact protein complexes are of central interest in current membrane proteomics. We have developed methods based on nondenaturing detergent extraction of yeast mitochondrial membrane proteins followed by enrichment of hydrophobic proteins in aqueous two-phase system. Combining the zwitterionic detergent Zwittergent 3-10

REPRESENTATIVE SELECTION OF PROTEINS BASED ON NUCLEAR FAMILIES

The selection of unbiased representatives from a large database is complicated by the requirement for the chosen entries to be not only genuinely different from each other but also typical for the family of related entries. A method satisfying this 2-fold objective was developed by equipping complete linkage clustering with a novel noise elimination procedure to deal with overlapping cluster struc

High density lipoprotein concentrations after cessation of smoking: the importance of alterations in diet

Cessation of smoking is followed by a rapid rise in plasma HDL concentrations. An earlier study has demonstrated a significant relationship between the increase in HDL concentrations and spontaneous changes in food intake, specifically an increased fat intake. In this investigation we have dissociated the effects of cessation of smoking as such from those of dietary alterations by monitoring plasm

Cardiac myosin isoforms from different species have unique enzymatic and mechanical properties

The mammalian heart contains two cardiac myosin isoforms: beta-myosin heavy chain (MHC) is found predominantly in the ventricles of large mammals, and alpha-MHC is expressed in the atria. The sequence identity between these isoforms is approximately 93%, with nonidentical residues clustered in discrete, functionally important domains associated with actin binding and ATPase activity. It is well-es