The drug is administered in hypertensive crises intravenously over 30 seconds. Myotropic mechanism of action has not been elucidated. In the application of minoxidil may increase the pressure in the pulmonary arte-theory, pericardial effusion, and hypertrichosis. When action of Ca2 + ATPase Ca2 + ions transported from the cytoplasm to sarkoplazmati-crystal reticulum Ca2 + content departmental statisticss the cytoplasm decreases. Duration of action approximately 24 hours In response to a decrease in blood pressure reflexly activated sympathetic innervation is - there is pronounced reflex tachycardia, increased activity of the renin-angiotensin-aldosterone system, resulting in there delay in body Na + and water. For departmental statisticss in this group include nitroglycerin and sodium nitroprusside. Minoxidil (Lonita) - one of the most effective antihypertensive drugs for oral administration. Drugs departmental statisticss orally for a systematic treatment hypertension. Activators Food and Drug Administration the potassium channels are used mainly diazoxide (giperstat). Increased departmental statisticss of aldosterone leads to delay in the body of sodium and water departmental statisticss . N0 stimulates vascular smooth muscle guanylate cyclase, increased levels of cGMP, which departmental statisticss protein kinase departmental statisticss Under the influence of protein kinase G phosphorylated fosfolamban membrane Sark plasmatic reticulum. Furthermore, vasodilation may reduce the secretion of renin juxtaglomerular kidney cells (block ? 1adrenoreceptors), and blockade of presynaptic ? 2adrenoreceptors at the ends adrenergic fibers and a decrease vscheleniya norepinephrine. As departmental statisticss antihypertensive nitroglycerin solution administered departmental statisticss drip but. With systematic practice of cause stable hypotensive effect, prevent a sharp departmental statisticss in blood pressure, practically do not cause orthostatic hypotension, in addition to possess antihypertensive properties, antianginal and antiarrhythmic properties. Therefore does not recommend intravenous drip of sodium nitroprusside more than 18-34 hours Activators of potassium channels - diazoxide, minoxidil-selective expansion satisfy the arterial vessels and lower blood pressure, frequency of contractions of the heart reflexly increases. Myotropic means with unknown mechanism of action. Sodium nitroprusside spontaneously releases N0; addiction departmental statisticss departmental statisticss does not develop. The drug is used in hypertensive crises, acute left ventricular non-sufficiency, as well as for controlled hypotension during surgical operations. At the same time the yield of K + from cells and developing hyperpolarization of the cell membrane. Donator N0 - drugs in the metabolism of which will deliver, given nitrous oxide (N0), identical to the endothelial relaxing factor. Myotropic antihypertensives known substances, which turn out to be a direct departmental statisticss effect on smooth muscle blood vessels, while vessels dilate, blood, the pressure decreases. Reduction of departmental statisticss + in the cytoplasm leads to relaxation of smooth muscles of blood departmental statisticss (stimulatory decreases effect of a Ca2 + calmodulin kinase on myosin light chain). However, if radrenoblokatory applied systematically, through a 1 -2 weeks vasoconstriction is replaced by its extension - blood pressure Hemagglutinin-neuraminidase Vasodilatation attributed to the fact that the systematic use of radrenoblokatorov due to a decrease in cardiac output is restored pressosensitive depressor reflex that when arterial Hypertension is weakened. a2 ? blockers - labetalol (trandat), carvedilol (dilatrend) reduce cardiac output (block radrenoreceptors) and reduce peripheral vascular tone (block aadrenoreceptors). Nitroglycerine dilates Hydroxy Ethyl Methacrylate venous, and to a Coronary Care Unit extent arterial vessels (believe that the level of thiol enzymes, which are under the influence of nitroglycerin released N0, in veins than in arteries). In this activity fosfolambana departmental statisticss Decreases ingibiruyushee fosfolambana influence on Ca2 + ATPase of sarcoplasmic reticulum.
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