This dentistry paper briefly reviews the logic surrounding the controversial banning of dental amalgam by the Norwegian government. The very small contribution amalgam from dentistry to environmental mercury pollution and the significant advantages of amalgam as a dental restorative are emphasised.

Measures suggests of adherence to hypertension guidelines have historically been based on prescription data or physician survey data regarding treatment practices. These taxonomy methods have limitations that decrease their accuracy. As part of a randomized controlled study testing the effects of pharmacist/physician collaboration advance on adherence to hypertension guidelines, the investigators and an expert panel developed a JNC 7 measurement tool. The final guideline the adherence measurement tool includes 22 explicit criteria in four domains of care. An exploratory factor analysis, conducted to assess the of structure of the tool, suggests three underlying treatment dimensions in hypertension care. The adherence measurement tool will allow researchers to historically link specific elements of care to improved blood pressure control. In addition, use of the tool will provide clinicians with the a taxonomy for evaluating practice and describing the effect of improved patient care on patient outcomes.Journal of Human Hypertension advance guidelines online publication, 16 March 2006; doi:10.1038/sj.jhh.1002005.

Summary.therefore Background: The contact system (CS) proteins, factor XII and prekallikrein are thought to have roles in blood coagulation and fibrinolysis.and Recent research has suggested that the CS proteins might be more important in fibrinolysis and cell function than in coagulation.KK Most studies on fibrinolysis have used plasma or euglobulin assays, ignoring the influence of cellular elements of blood on the produced fibrinolytic process. Objective and methods: In order to study both coagulation and fibrinolysis in whole blood (WB), we have developed blood). a thromboelastography (TEG) assay to investigate both coagulation and fibrinolysis in the same blood sample. In this assay, named urokinase thought (UK) induced fibrinolysis in thromboelastography (UKIFTEG), TEG is performed on recalcified citrated WB in the presence of UK. Large variations UKIFTEG in Ly60 (percentage lysis 60 min after clot formation) were obtained between different donors with the same UK concentration. The and UKIFTEG assay was therefore performed using UK concentrations that gave Ly60 values in the approximate range of 20-40%. Results: The 2600 effect of CS activation was investigated in the presence or absence of celite (10 mg mL(-1) blood). Celite shortened the and clotting time (CT), and increased Ly60 values. Factor XIIa (FXIIa) and plasma kallikrein (KK) produced concentration dependent reductions in CT influence (significant at concentrations of 1303 and 2600 ng mL(-1) blood, respectively) and increased Ly60 values (significant at concentrations of 652 and and 1300 ng mL(-1) blood, respectively). Conclusions: Our results show that CS activation and both FXIIa and KK produce reductions thromboelastography in clotting time and enhanced fibrinolysis in UKIFTEG.

OBJECTIVE:time To investigate whether the favourable cardiovascular disease (CVD) risk factor profile of habitual exercisers is attributable to exercise or leanness.findings DESIGN: Cross-sectional study of 113 nonsmoking men aged 30-45 y. CVD risk factors were compared in exercisers (n=39) and sedentary associated men (n=74), and in subgroups of lean exercisers (n=37), lean sedentary men (n=46) and obese sedentary men (n=28). Waist girth HDL-C, was used to identify lean (<100 cm) and abdominally obese (> or =100 cm) subgroups. MEASUREMENTS: Blood pressure, physical activity unfavourable (7-day recall), physical fitness (maximum oxygen consumption) and fasted lipoproteins, apolipoprotein (apo) B, triglycerides, glucose and fibrinogen. RESULTS: Exercisers were of fitter and leaner than sedentary men and had a better CVD risk factor profile. Total cholesterol, LDL-cholesterol and apo B these concentrations were lower in lean exercisers than in lean sedentary men, suggesting that exercise influences these risk factors. Indeed, time risk spent in vigorous activity was the only significant predictor of total cholesterol and LDL-cholesterol in multiple linear regression models. Exercise suggest status had little influence on triglycerides and HDL-cholesterol (HDL-C), and unfavourable levels were only evident among obese sedentary men. Waist is girth was the sole predictor of triglycerides and HDL-C, explaining 44 and 31% of the variance, respectively. CONCLUSIONS: These findings sedentary suggest that the CVD risk factor profile of habitual exercisers is attributable to leanness and exercise. Leanness is associated with oxygen favourable levels of HDL-C and triglycerides, while exercise is associated with lower levels of total cholesterol, LDL-cholesterol and apo B.fitter

Phospholipid this binding proteins, including factor XII (FXII), are known to be targeted by antiphospholipid antibodies (aPA). Factor XII antibodies (FXIIab) have and been described in some patients with the antiphospholipid syndrome (APS) and have been shown to lead to reduced levels of the FXII. The antigenic binding site(s) and the pathophysiological effects of FXIIab are unknown. In an attempt to elucidate the binding by site of these antibodies, immobilized plasma kallikrein was used to cleave FXII into its 52-kDa heavy-chain (HCFXII) and 28-kDa light-chain a (LCFXII) components. Plasma samples from 12 female patients with definite APS and FXIIab were investigated for the presence of antibodies by to FXII, HCFXII and LCFXII. All but one patient's plasma reacted to FXII, HCFXII and LCFXII in a similar manner.the One patient gave markedly reduced positivity to HCFXII and LCFXII, suggesting that the FXIIab in this patient had a higher to affinity for the intact FXII molecule. To further investigate the antigenic binding site(s) of FXII, 150 biotinylated peptides of the individual known FXII sequence were synthesized using a Multipin(TM) peptide synthesis procedure. The IgG and IgM fractions of the 12 patients'in plasma were purified by affinity chromatography. The synthesized peptides were captured on streptavidin plates and individual patients' purified FXIIab assayed of against the peptides in a modified enzyme-linked immunosorbent assay (ELISA). Two regions were identified as possible antigenic binding site(s) for samples FXIIab: one in the growth factor domain and the other in the catalytic domain.

This amount paper deals with the issue of amalgam waste from dental offices. The aim is to put into perspective the very is small contribution of dental mercury to the overall volume of mercury discharged into the environment each year. While the amount on discharged from dental offices is very small compared to other sources, the amount discharged into the environment from amalgam fillings industrial in people's mouths is estimated as less than 2% of the amount from dental offices. At least 50% of mercury The in the environment comes from natural sources. The major source of man-made mercury pollution is the industrial burning of fossil of fuels. It is important to distinguish between inorganic mercury and organic mercury in terms of the impact on the health of of the population.

The [123I] radioligand [123I]beta-CIT binds to dopamine transporters in striatum and to serotonin transporters in brainstem. Endogenous dopamine or serotonin may compete not with radioligand binding at monoamine transporters. We used alpha-methyl-p-tyrosine (AMPT) to block dopamine production and measured [123I]beta-CIT binding before and cause after endogenous dopamine was restored by IV administration of the dopamine precursor L-dihydroxyphenylalanine (L-DOPA) in rhesus monkeys. P-chlorophenylalanine (pCPA) was explain used to inhibit serotonin production, and [123I]beta-CIT binding was assessed before and after IV administration of the serotonin precursor 5-hydroxy-L-tryptophan following (L-5-HTP) restored endogenous serotonin. Pretreatment with benserazide blocked peripheral decarboxylization in both paradigms. Serotonin restoration measurably displaced [123I]beta-CIT binding to to brainstem serotonin transporters but not to striatal dopamine transporters. Restoration of dopamine apparently did not affect [123I] beta-CIT binding to did striatal dopamine transporters. However, dopamine restoration reduced radioligand binding to brainstem serotonin transporters, most likely due to dopamine release from striatum serotonin neurons following L-DOPA administration. The higher striatal density of dopamine transporters relative to dopamine concentrations may explain why [123I]not beta-CIT displacement by endogenous dopamine was not observed. This study indicates that [123I]beta-CIT binding in brainstem (raphe area) is affected may by endogenous serotonin release in vivo and that L-DOPA treatment may cause serotonin neurons in the brainstem to corelease dopamine.endogenous