What is Cholesterol?Cholesterol is a sterol (a combination steroid and alcohol). Cholesterol is a lipid found in the cell membranes of all tissues, and it is transported in the blood plasma of all animals. Because cholesterol is synthesized by all eukaryotes, trace amounts of cholesterol are also found in membranes of plants and fungi.The name originates from the Greek chole- (bile) and stereos (solid), and the chemical suffix -ol for an alcohol, as researchers first identified cholesterol in solid form in gallstones by Francois Poulletier de la Salle in 1769. However, it is only in 1815 that chemist Eugene Chevreul named the compound "cholesterine".[2]Most of the cholesterol is synthesized by the body and some has dietary origin. Cholesterol is more abundant in tissues which either synthesize more or have more abundant densely-packed membranes, for example, the liver, spinal cord and brain. It plays a central role in many biochemical processes, such as the composition of cell membranes and the synthesis of steroid hormones. Cholesterol is insoluble in blood, but is transported in the circulatory system bound to one of the varieties of lipoprotein, spherical particles which have an exterior composed mainly of water-soluble proteins. The main types, low-density lipoprotein (LDL) and high-density lipoprotein (HDL) carry cholesterol from and to the liver.According to the lipid hypothesis, abnormally high cholesterol levels (hypercholesterolemia) and abnormal proportions of LDL and HDL are associated with cardiovascular disease by promoting atheroma development in arteries (atherosclerosis). This disease process leads to myocardial infarction (heart attack), stroke and peripheral vascular disease. As high LDL contributes to this process, it is termed "bad cholesterol", while high levels of HDL ("good cholesterol") offer a degree of protection. The balance can be redressed with exercise, a healthy diet, and sometimes medication. |
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Lack of transmission of hepatitis C virus in a haemodialysis unit et al. 2 that serotonin may play a role in the regulation. of blood pressure in patients with chronic renal failure. Pharmacodynamics and Nephrology Autonomic nervous system and blood pressure regulation in RGS2 Central influences on blood pressure regulation may be mediated by changes in the adjustment of the tone in the parasympathetic and sympathetic nervous Blood pressure regulation and micronutrients The action of various vitamins on blood pressure regulation cannot always response to serotonin and noradrenaline in isolated resistance arteries Relationsh ip of Na-K-ATPase Inhi bitors to Blood-Pressure Serotonin. in. the. control. of blood. pressure. and. ultrafiltration . blood. pressure. regulation,. and. hypertension:. a reassessment Hypertension - Fulltext: Volume 48(6) December 2006 p e117 Blood pressure in mutant rats lacking the 5-hydroxytryptamine transporter. Altered serotonin synthesis, turnover and dynamic regulation in multiple Response to Blood Pressure in Mutant Rats Lacking the 5 N-nitro-L-arginine (L-NNA) to elevate blood pressure increase in the SERT Altered serotonin synthesis, turnover and dynamic regulation in multiple brain IngentaConnect Asymmetrical regulation of blood pressure in the Methiothepin produced an increase in arterial blood pressure when Keywords: Blood pressure regulation; Medulla; Rat; Serotonin; Cardiovascular centre Tryptophan-induced lowering of blood pressure and changes of tem in blood pressure regulation and its possible .. uptake and content of serotonin in blood platelets in hyper-. tensive patients. Serotonin Receptor 2A ( HTR2A ) Gene Polymorphisms Are Associated shown polymorphisms in the serotonin 2A receptor (HTR2A) gene to be associated .. specific effect of this polymorphism on blood. pressure regulation. EFFECTS OF CENTRAL SEROTONIN NERVE LESIONS ON BLOOD PRESSURE IN Key words: serotonin,. J,l-dihydroxytryptnmine,. blood pressure, spontaneously .. system in blood pressure regulation. Hypertension,. 2, 243-255. Involvement of serotonin in the central regulation of blood Involvement of serotonin in the central regulation of blood pressure: evidence for a facilitating effect on sympathetic nerve activity Involvement of Serotonin in the Central Regulation of Blood Regulation. of Blood. Pressure:. Evidence. for a Facilitating. Effect on Sympathetic. Nerve Activity. ABSTRACT. The. effects. of serotonin. (5-HT). receptor Brain serotonin and blood pressure regulation: studies using in Therefore, serotonin has a role in blood pressure regulation as a pharmacologic agent and as a neurotransmitter in homeostatic control of pressure. Vascular Serotonin Receptors and Blood Pressure Regulation more selective 5HT2-receptor antagonists to elucidate the role of vascular serotonin recep-. tors in blood pressure regulation. Brain Research : Asymmetrical regulation of blood pressure in the Author Keywords: Blood pressure regulation; Medulla; Rat; Serotonin; Cardiovascular centre. Article Outline. Acknowledgements; References ScienceDirect - American Journal of Hypertension : Regulation of Regulation of systolic blood pressure by serotonin, through 5-HT2B receptor, and ovarian hormones in nos inhibition-induced hypertensive mice Science Links Japan | Comprehensive Management of Hypertension. B B. Blood pressure regulation system. 4. Role of endocrine substances. Role of endocrine substances in blood pressure regulation. Serotonin. |
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