Table 2.

Kidney biopsy results of the patients (n = 10)

Patient	Renal biopsy				Serum C3 (mg/dL)	Serum C4 (mg/dL)	Serum CH50 (%)
	LM	IF	Interstitial inflammation	Fibrosis
1	MP	IgM+, C3++	Mild mononuclear infiltration	Mild	120	20	101
2	MP	C3++	Mild patchy mononuclear infiltration	None	104	21	110
3	MP	IgM+, C3+	Mild mononuclear infiltration	None	118	18	150
4	MP	IgG++, IgA+	Moderate patchy mixed inflammation	None	140	22	110
5	MP	IgG++, C3++	Mild patchy inflammation	Mild	88	30	102
6	MP	IgA+	None	None	99	27	110
7	MCD	Negative	Mild mononuclear infiltration	None	127	30	120
8	MPGN	IgM+, C3+	Mild patchy mononuclear infiltration	Mild	118	33	171
9	MPGN	IgA+	Mild mononuclear infiltration	Mild	150	35	118
10	MP, FSGS	IgM+	Moderate patchy mononuclear infiltration	Mild	105	28	160

Note: Serum complement levels prior to the dental procedures are also included. The normal range of C3 is 90–180 mg/dL, C4 is 10–40 mg/dL, and CH50 is 70%–150%.

Abbreviations: C3, C3 complement; C4, C4 complement; CH50, total hemolytic complement; FSGS, focal segmental glomerulosclerosis; IF, immunofluorescence staining; IgA, immunoglobulin A; IgG, immunoglobulin G; IgM, immunoglobulin M; LM, light microscopy; MCD, minimal change disease; MP, mesangioproliferative glomerulonephritis; MPGN, membranoproliferative glomerulonephritis.