Evans C A, Strom M S
J Invest Dermatol. 1982 Jul;79(1):51-2. doi: 10.1111/1523-1747.ep12510587.
Eight subjects having a rich (greater than or equal to 100,000 per cm2) population of Propionibacterium acnes on the forehead and 7 with a sparse population (great than or equal to 15,000 per cm2) in earlier tests were reexamined after median interval of 8 yr. All of those with an initial rich population had greater than or equal to 100,000 per cm2 on retest. Of the 7 with an initial sparse population, 4 again had fewer than 15,000, one had more than 100,000 per cm2 and 2 were intermediate. Three subjects harbored Peptococcus saccharolyticus in the initial test (26,000 to 75,000 per cm2) and all 3 carried this organism on the later test (5,000 to 49,000 per cm2). Of the 12 without P. saccharolyticus initially, 11 were again negative and one had a small number (200 per cm 2). We conclude that the presence or absence of P. saccharolyticus and the relative population density of P. acnes were individual characteristics that persisted in most subjects for at least 8 yr.
8名在前额痤疮丙酸杆菌数量丰富（每平方厘米大于或等于100,000个）的受试者以及7名在早期测试中数量稀少（每平方厘米大于或等于15,000个）的受试者在间隔8年的中位数时间后重新接受检查。所有最初数量丰富的受试者在重新测试时每平方厘米仍大于或等于100,000个。在最初数量稀少的7名受试者中，4名再次少于15,000个，1名每平方厘米超过100,000个，2名处于中间水平。3名受试者在初始测试中携带解糖消化球菌（每平方厘米26,000至75,000个），并且在后来的测试中所有3名都携带该菌（每平方厘米5,000至49,000个）。在最初没有解糖消化球菌的12名受试者中，11名再次呈阴性，1名有少量（每平方厘米200个）。我们得出结论，解糖消化球菌的有无以及痤疮丙酸杆菌的相对种群密度是个体特征，在大多数受试者中至少持续8年。
