Lieberman P, Rice M C, Mallette J E
Arch Intern Med. 1977 Apr;137(4):440-2.
The C1q precipitin test was performed in serum samples from five groups of patients: (1) 20 patients with acomplementemic systemic lupus erythematosus glomerulonephritis (SLE), (2) 2 patients with serum sickness due to the administration of horse serum, (3) 2 patients with serum sickness preceding hepatitis B, (4) 50 patients with chronic urticaria, and (5) 30 normal controls. Positive C1q precipitin tests were found in all patients with SLE and the four cases of serum sickness. Positive tests correlated with depressed serum complement (C3 and C4) levels and were found only in the early phase of serum sickness. Urticaria patients uniformly had negative C1q precipitin tests and normal serum complement levels.
对五组患者的血清样本进行了C1q沉淀试验：（1）20例患有补体缺乏的系统性红斑狼疮性肾小球肾炎（SLE）的患者；（2）2例因注射马血清而患血清病的患者；（3）2例在乙型肝炎之前患血清病的患者；（4）50例慢性荨麻疹患者；（5）30名正常对照者。在所有SLE患者和4例血清病患者中均发现C1q沉淀试验呈阳性。阳性试验与血清补体（C3和C4）水平降低相关，且仅在血清病的早期阶段出现。荨麻疹患者的C1q沉淀试验均为阴性，血清补体水平正常。
