Probucol

그림문자(GHS)

• 그림문자(GHS)

  

• 신호 어

  Warning

• 유해·위험 문구

  H302：삼키면 유해함

• 예방조치문구

  P280：보호장갑/보호의/보안경/안면보호구를 착용하시오.

  P305+P351+P338：눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.

Probucol MSDS

• 2,2-Propdiyl-bis(4-thio-2,6-di-tert-butylphenol)

Probucol 화학적 특성, 용도, 생산

• 화학적 성질

  White Solid

• 용도

  Probucol is an antilipemic.

• 정의

  ChEBI: A dithioketal that is propane-2,2-dithiol in which the hydrogens attached to both sulfur atoms are replaced by 3,5-di-tert-butyl-4-hydroxyphenyl groups. An anticholesteremic drug with antioxidant and anti-inflammatory properties, it is used to treat high l vels of cholesterol in blood.

• Biological Functions

  Probucol (Lorelco) is a hypocholesterolemic drug with few side effects that modestly (15–30%) decreases elevated plasma LDL cholesterol levels. The marginal LDL-lowering action plus reports that it can lower HDL cholesterol resulted in its discontinuation as a hypocholesterolemic drug. However, it still may reduce the risk of CHD because it is a powerful antioxidant.
  The oxidation hypothesis of atherosclerosis states that oxidation of lipids in LDL is required for LDL uptake by macrophages and smooth muscle cells in the intima of arteries, leading to their transformation to foam cells, an early event in atherogenesis. A recent clinical trial reported that use of probucol decreased the rate of restenosis of coronary arteries by 50% in patients who underwent angioplasty. Fluvastatin also has potent antioxidant properties that may contribute to its antiatherosclerotic effects.These findings suggest that reducing high plasma lipids may not be the only approach to retarding the progression of atherosclerosis and decreasing the risk of coronary heart disease.

• 일반 설명

  Probucol, 4,4＇ -[(1-methylethylidene)bis(thio)]bis[2,6-bis(1,1-dimethylethyl)phenol], DH-581(Lorelco), is a chemical agent that was developed for the plasticsand rubber industry in the 1960s. The probucol moleculehas two tertiary butylphenol groups linked by a dithiopropylidenebridge, giving it a high lipophilic character with strongantioxidant properties. In humans, it causes reduction of bothliver and serum cholesterol levels, but it does not alter plasmatriglycerides. It reduces LDL and (to a lesser extent) HDLlevels by a unique mechanism that is still not clearly delineated.The reduction of HDL may be caused by the ability ofprobucol to inhibit the synthesis of apoprotein A-1, a majorprotein component of HDL. It is effective at reducing levelsof LDL and is used in hyperlipoproteinemias characterized byelevated LDL levels.

• 생물학적 활성

  Antioxidant, anti-inflammatory and hypocholesterolemic agent. Inhibits atherogenesis in genetically hypercholesterolemic rabbits (Watanabe) and attenuates ischemia/reperfusion-induced cardiomyocyte apoptosis.

• Mechanism of action

  Probucol reduces the overall level of cholesterol—primarily low-density lipoproteins— without having an effect on triglycerides and very low-density lipoproteins. It has been suggested that it inhibits synthesis of cholesterol itself and increases removal of bile salts. Upon using this drug, a fraction of low-density proteins is reduced; however, even more significant is the reduction of high-density proteins. From the epidemiological point of view, this is dangerous, because lowering the concentration of high-density proteins means less cholesterol is removed from tissues. However, in any case, probucol lowers the level of cholesterol in the plasma by 10–15%. Moreover, it has been shown that probucol facilitates reduction of necrotic zones in myocardial ischemia.

• Pharmacology

  Being a lipophilic compound, it is easily distributed into fatty tissue and, as a result, approximately 20% of its maximum concentration in the blood is still maintained for 6 months.

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