Fipronil is a broad use insecticide that belongs to the phenylpyrazole chemical family. Fipronil is used to control ants, beetles, cockroaches, fleas, ticks, termites, mole crickets, thrips, rootworms, weevils, and other insects.Fipronil is a white powder with a moldy odor.ipronil is used to control ants, beetles, cockroaches, fleas, ticks, termites, mole crickets, thrips, rootworms, weevils, and other insects. Fipronil is a white powder with a moldy odor.
While the cause of rheumatoid arthritis is not clear, it is believed to involve a combination of genetic and environmental factors. The underlying mechanism involves the body's immune system attacking the joints. This results in inflammation and thickening of the joint capsule. It also affects the underlying bone and cartilage.
Researchers are working to understand what causes rheumatoid arthritis. Rheumatoid arthritis (RA) is a complex disease in which the patientâs immune system attacks its own tissue causing swelling and inflammation in the joints and damage of tissues and other organs.uch of the rheumatoid arthritis research being conducted focuses on immune mechanisms involved. Many of these mechanisms are shared with other autoimmune diseases that attack different organs, such as lupus (kidneys), multiple sclerosis (brain) and Type I diabetes (pancreas).