Influence of dietary carbohydrate and fat on LDL and HDL particle distributions
ABSTRACT Variations in the size and density distributions of low-density lipoprotein (LDL) and high-density lipoprotein (HDL) particles have been related to risk for cardiovascular disease. In particular, increased levels of small, dense LDL particles, together with reduced levels of large HDL and increases in small HDL, are integral features of the atherogenic dyslipidemia found in patients with insulin resistance, obesity, and metabolic syndrome. Increased dietary carbohydrates, particularly simple sugars and starches with high glycemic index, can increase levels of small, dense LDL and HDL, primarily by mechanisms that involve increasing plasma triglyceride concentrations. Low-carbohydrate diets may have the opposite effects. Diets with differing fatty acid composition can also influence LDL and HDL particle distributions.
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- "blood; Fig. 1). Lipoproteins consist of a single layer of amphipathic phospholipid and cholesterol molecules that surround the non-polar lipids (Siri & Krauss, 2005). Given this simple established system available early in animal evolution, it is surprising that fats from milk are not transferred in the same manner. "
ABSTRACT: The biological process of fat globule assembly and secretion produces highly complex globule compositions and structures with many properties now recognized to be the direct result of these structures. During homogenization, fat globules are broken down and subsequently structures and surfaces different than the native state are formed. This process alters the milk fat globule unique macrostructure and the effects associated to their structure would be expected to be lost. In the present overview, the need for continued research of the fundamental aspects of the mechanism involved in milk fat globules synthesis secretion and size distribution, as well as establishing ways to regulate those processes are highlighted. Ultimately these insights will guide food technology to developing a new generation of structure based functional foods and as highlighted in this overview, dairy functional products should be the pioneering commodity.Trends in Food Science & Technology 12/2008; 19(12). DOI:10.1016/j.tifs.2008.07.006 · 4.65 Impact Factor
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ABSTRACT: Criteria for the choice of a strategy for an extreme-seeking photovoltaic battery charger system are discussed. A feedback regulator stabilizing the input voltage to its power cell has been chosen and its dynamic model analyzed. The approach, based on the cell characteristic coefficients, is shown to accurately predict the behavior of this uncommon regulator with an LC input filter and is fed by a source with a nonnegligible output resistance. The availability of an easy-to-use dynamic model facilitates the visualization of the design tradeoffs and provides a comprehensive base for design decisionsApplied Power Electronics Conference and Exposition, 1990. APEC '90, Conference Proceedings 1990., Fifth Annual; 04/1990
Conference Paper: Implementation of DSP-based digital receiver for the SDR application[Show abstract] [Hide abstract]
ABSTRACT: In recent times, the demodulator structure is reconfigurable for the SDR (software defined radio) technology that supports various communication reception modes in the radio communication. Owing to the SDR technology, it is possible to work in several modes without the peripheral hardware. We implement the M-ary FSK and BPSK demodulators on the DSP (TMS320C6203) board without the conventional complex analog circuits. We also propose a synchronization algorithm for BPSK demodulation. We also find out the demodulated signal after emulating the source program by graph view window of the DSP development tool, i.e. code builder. Based on the results, we can get the same performance by using the DSP technique as compared with the conventional complex circuit. It is confirmed that the programmed DSP can demodulate the various kinds of modulation signal by software programming.Communications, 2004 and the 5th International Symposium on Multi-Dimensional Mobile Communications Proceedings. The 2004 Joint Conference of the 10th Asia-Pacific Conference on; 01/2004