Protection from benzene-induced immune dysfunction in mice.

Area of Science:

• Toxicology
• Immunology
• Pharmacology

Background:

• Benzene exposure is known to cause immune system dysfunction.
• Recovery from benzene-induced immune impairment is not well-documented.
• This study investigates potential therapeutic interventions for benzene toxicity.

Purpose of the Study:

• To evaluate the efficacy of Bombyx batryticatus (BB), raw pinellia (RP), and a combination therapy (CM) in mitigating benzene-induced immune dysfunction.
• To assess the impact of these treatments on spleen and thymus structure and function.
• To determine the effects on peripheral blood mononuclear cell (PBMC) ATP levels and oxidative stress markers.

Main Methods:

• An immune dysfunction mouse model was established using benzene gavage (500 mg/kg).
• Mice were treated with BB (5 g/kg), RP (5 g/kg), or CM (150 mg/kg VPA & 100 mg/kg CoQ10) for four weeks.
• Immune function, spleen and thymus histology, PBMC ATP levels, and oxidative stress markers (GSH, SOD, MDA) were analyzed.

Main Results:

• All tested medications (BB, RP, CM) alleviated benzene-induced structural and functional damage to the spleen and thymus.
• Benzene-induced decrease in PBMC ATP levels was improved by BB, RP, and CM.
• Treatments reduced oxidative stress by increasing glutathione peroxidase (GSH) and superoxide dismutase (SOD) activities and decreasing malondialdehyde (MDA) levels.

Conclusions:

• Bombyx batryticatus (BB), raw pinellia (RP), and combination therapy (CM) effectively alleviate benzene-induced immune dysfunction in mice.
• These interventions appear to work by correcting redox imbalance and oxidative stress.
• The findings suggest potential therapeutic strategies for benzene toxicity and immune system recovery.