Table 2.

Biological parameters of the control and study groups before and after induction and treatment of Rheumatoid arthritis.

Groups	Before induction	After induction	After treatment
Rheumatoid factor (IU/mL)
Normal control	<8	<8	<8
RA control	<8	≥8	<8
ZnONPs	<8	≥8	<8
Curcumin	<8	≥8	<8
ZnONPs-DC	<8	≥8	<8
C-Reactive Protein level (mg/L)
Normal control	<6	<6	<6
RA control	<6	≥6	<6
ZnONPs	<6	≥6	<6
Curcumin	<6	≥6	<6
ZnONPs-DC	<6	≥6	<6

^*RA: Rheumatoid arthritis, ZnONPs: Zinc oxide nanoparticles, ZnONPs-DC: Zinc oxide nanoparticles-doped curcumin.