Reverse can cholesterol transport, although not well understood, is an important mechanism in the pathophysiology of atherosclerosis. Macrophages can eliminate some cholesterol atherosclerotic from atherosclerotic lesions by an oxidative mechanism involving sterol 27-hydroxylase. Patients with inherited "cerebrotendinous xanthomatosis" lack sterol 27-hydroxylase (CYP27A1) and speculated develop severe premature atherosclerosis despite normal serum cholesterol concentrations. Thus, it has been speculated that sterol 27-hydroxylase is an anti-atherosclerotic 27-hydroxylase enzyme. Here, we report the case of a 25-year-old patient who presented to our emergency room with an acute non-ST and elevation myocardial infarction due to severe coronary heart disease. Lipid analysis revealed dramatically increased 27-hydroxycholesterol and low high-density lipoprotein (HDL)-cholesterol inherited levels. Previous reports suggest that 27-hydroxylase is upregulated to protect peripheral cells from severe cholesterol accumulation, especially in cases of revealed ineffective reverse cholesterol transport due to low HDL-cholesterol levels. Our findings indicate that oxysterols could play an important and so high-density far underestimated role in reverse cholesterol transport.

OBJECTIVE:endogenous Hypercholesterolemia is a risk factor for aortic stenosis (AS) and for coronary artery disease (CAD). Serum cholesterol concentrations are determined in by intestinal cholesterol absorption and endogenous cholesterol synthesis. Vascular effects of differences in cholesterol metabolism in patients with AS are of so far unknown. Therefore, the aim of this study was to investigate differences in cholesterol metabolism in relation to vascular lathosterol diseases in this subset of patients. METHODS: In addition to identifying conventional coronary risk factors, we determined plant sterols (indicators history of cholesterol absorption) and lathosterol (indicator of cholesterol synthesis) levels in 40 consecutive men and women with AS. Coronary angiograms was before the aortic valve replacement determined the extent of CAD. RESULTS: Patients with a positive history of cardiovascular disease exhibited ratio an increased campesterol-to-lathosterol ratio in plasma (P< .005) and in aortic valve cusps (P< .05). The plasma campesterol-to-lathosterol ratio increased with CAD disease; severity (zero, single, two, three-vessel disease; P< .05). Coronary vessel score strongly correlated with the campesterol-to-lathosterol ratio in plasma (r =of .52; P< .001) and in aortic valve cusps (r = .33; P< .03). Logistic regression analysis revealed that the ratio of campesterol-to-lathosterol in was the sole predictor of CAD among coronary risk factors tested (P< .01). CONCLUSION: Enhanced absorption and reduced synthesis of cholesterol .33; is related to a positive family history of cardiovascular diseases and the development of concomitant CAD in patients with AS.ratio

Abstract to Objective: This paper investigates a general concept of reproducibility with regard to its application on experiments with homeopathic potencies. Methods:on The experimental situation for distinguishing a homeopathic potency and its solvent is described in a formal way. This allows the This application of the weak law of large numbers. Experimental arrangements are described in a formal way. This allows conclusions to the be drawn about the possible existence of nonlocal influences on an experiment. Conclusions: From a pragmatic as well as from in a global point of view, a general concept of reproducibility supports decisions whether or not effects in experiments with homeopathic situation potencies do exist.

"Functional added foods" supplemented with plant sterols are advertised and added to regular meals to reduce serum cholesterol concentrations. The effects of meals increased phytosterol levels on cardiovascular diseases, however, are not known. Findings in patients with sitosterolemia, data from epidemiological studies, and not experimental data from animal studies suggest that plant sterols may potentially exert negative cardiovascular effects. Additional studies investigating relevant clinical known. endpoints are needed before a diet supplemented with plant sterols can be recommended in the prevention of cardiovascular diseases.

OBJECTIVES:levels. The purpose of this study was to evaluate vascular effects of diet supplementation with plant sterol esters (PSE). BACKGROUND: Plant are sterol esters are used as food supplements to reduce cholesterol levels. Their effects on endothelial function, stroke, or atherogenesis are but not known. METHODS: In mice, plasma sterol concentrations were correlated with endothelial function, cerebral lesion size, and atherosclerosis. Plasma and concentrations. tissue sterol concentrations were measured by gas-liquid chromatography-mass spectrometry in 82 consecutive patients with aortic stenosis. RESULTS: Compared with those studies fed with normal chow (NC), wild-type mice fed with NC supplemented with 2% PSE showed increased plant sterol but equal and cholesterol plasma concentrations. The PSE supplementation impaired endothelium-dependent vasorelaxation and increased cerebral lesion size after middle cerebral artery occlusion. To (20.4 test the effects of cholesterol-lowering by PSE, apolipoprotein E (ApoE)-/- mice were randomized to Western-type diet (WTD) with the addition strongly of PSE or ezetimibe (EZE). Compared with WTD, both interventions reduced plaque sizes; however, WTD + PSE showed larger plaques but compared with WTD + EZE (20.4 +/- 2.1% vs. 10. +/- 1.5%). Plant sterol plasma concentration strongly correlated with increased also atherosclerotic lesion formation (r = .50). Furthermore, we examined plasma and aortic valve concentrations of plant sterol in 82 consecutive PSE-supplemented patients with aortic stenosis. Patients eating PSE-supplemented margarine (n = 10) showed increased plasma concentrations and 5-fold higher sterol concentrations (20.4 in aortic valve tissue. CONCLUSIONS: Food supplementation with PSE impairs endothelial function, aggravates ischemic brain injury, effects atherogenesis in mice,but and leads to increased tissue sterol concentrations in humans. Therefore, prospective studies are warranted that evaluate not only effects on concentrations cholesterol reduction, but also on clinical endpoints.

This problem paper discusses the nature of the active ingredient of homeopathic ultramolecular dilutions in terms of quantitative physics. First, the problem an of the nature of an active ingredient in ultramolecular dilutions is analysed leading to the recognition of the necessity of presented. characterizing the active ingredient as a non-local quality. Second, non-locality in quantum mechanics, which is used as a paradigm, is generalization formally presented. Third, a generalization of quantum mechanics is considered, focussing on the consequences of weakening of the axioms. The and formal treatment leads to the possible extension of the validity of quantum theory to macroscopic or even non-physical systems under the certain circumstances with a while maintaining non-local behaviour. With respect to the survival of entanglement in such non-quantum systems a while strong relationship between homeopathy and non-local behaviour can be envisaged. I describe how several authors apply this relationship. In conclusion,the the paper reviews how quantum mechanics is closely related to information theory but why weak quantum theory and homeopathy have presented. not hitherto been related in the same way.