Wallace S, Whiting B
Br J Clin Pharmacol. 1976 Apr;3(2):327-30. doi: 10.1111/j.1365-2125.1976.tb00611.x.
The binding of salicylate, sulphadiazine and phenylbutazone to plasma proteins has been studied in young and elderly subjects. Elderly patients had significantly reduced concentrations of plasma albumin, compared with subjects under 40 years of age. Sifnificant increases in free levels of all three drugs were found in elderly patients receiving multiple drug therapy, and a correlation obtained with the number of drugs being taken. It is suggested that because of their low albumin levels, elderly patients may be more susceptible to the effects of multiple drug therapy on drug binding. The clinical implications of these observations are discussed.
已在年轻和老年受试者中研究了水杨酸盐、磺胺嘧啶和保泰松与血浆蛋白的结合情况。与40岁以下的受试者相比,老年患者的血浆白蛋白浓度显著降低。在接受多种药物治疗的老年患者中,发现所有三种药物的游离水平均显著升高,且与所服用药物的数量存在相关性。有人认为,由于老年患者白蛋白水平较低,他们可能更容易受到多种药物治疗对药物结合的影响。文中讨论了这些观察结果的临床意义。